49 results on '"Olga Zaikova"'
Search Results
2. The Scandinavian Sarcoma Group Central Register: 6,000 patients after 25 years of monitoring of referral and treatment of extremity and trunk wall soft-tissue sarcoma
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Clement Trovik, Henrik C F Bauer, Emelie Styring, Kirsten Sundby Hall, Fredrik Vult Von Steyern, Sigvard Eriksson, Ingela Johansson, Mika Sampo, Minna Laitinen, Anders Kalén, Halldór Jónsson, Nina Jebsen, Mikael Eriksson, Erkki Tukiainen, Najme Wall, Olga Zaikova, Helgi Sigurðsson, Tuula Lehtinen, Bodil Bjerkehagen, Mikael Skorpil, Geir Egil Eide, Elisabeth Johansson, and Thor A Alvegard
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Orthopedic surgery ,RD701-811 - Abstract
Purpose — We wanted to examine the potential of the Scandinavian Sarcoma Group (SSG) Central Register, and evaluate referral and treatment practice for soft-tissue sarcomas in the extremities and trunk wall (STS) in the Nordic countries. Background — Based on incidence rates from the literature, 8,150 (7,000–9,300) cases of STS of the extremity and trunk wall should have been diagnosed in Norway, Finland, Iceland, and Sweden from 1987 through 2011. The SSG Register has 6,027 cases registered from this period, with 5,837 having complete registration of key variables. 10 centers have been reporting to the Register. The 5 centers that consistently report treat approximately 90% of the cases in their respective regions. The remaining centers have reported all the patients who were treated during certain time periods, but not for the entire 25-year period. Results — 59% of patients were referred to a sarcoma center untouched, i.e. before any attempt at open biopsy. There was an improvement from 52% during the first 5 years to 70% during the last 5 years. 50% had wide or better margins at surgery. Wide margins are now achieved less often than 20 years ago, in parallel with an increase in the use of radiotherapy. For the centers that consistently report, 97% of surviving patients are followed for more than 4 years. Metastasis-free survival (MFS) increased from 67% to 73% during the 25-year period. Interpretation — The Register is considered to be representative of extremity and trunk wall sarcoma disease in the population of Scandinavia, treated at the reporting centers. There were no clinically significant differences in treatment results at these centers.
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- 2017
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3. Radiotherapy for spinal metastases from breast cancer with emphasis on local disease control and pain response using repeated MRI
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Marta D. Switlyk, Øyvind S. Bruland, Sigmund Skjeldal, John K. Hald, Therese Seierstad, and Olga Zaikova
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Bone metastases ,Breast cancer ,MRI ,Pain response ,Radiotherapy ,Diseases of the musculoskeletal system ,RC925-935 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Aims: To evaluate metastatic lesions within the radiation field using repeated magnetic resonance imaging (MRI) and to compare the imaging findings with pain response following radiotherapy (RT) in patients with spinal metastases (SM) from breast cancer. Material and methods: 32 Patients with SM from breast cancer admitted for fractionated RT were included in this study. MRI examinations of the spine were scored for the extent of bone metastases, epidural disease and the presence and severity of vertebral fractures. Clinical response was defined according to the updated international consensus on palliative RT endpoints. Results: At 2 and 6 months after RT, 38% and 44% of the patients were classified as responders. None of the patients developed motor deficits. Importantly, a decrease in the intraspinal tumor volume after RT was reported in all patients. Only 6% of the patients showed bone metastases progression within the RT field, whereas 60% of the patients showed disease progression outside the RT portals. 5 Patients developed new fractures after RT, and fracture progression was observed in 21 of the 38 lesions (55%). The pain response to RT did not correlate with the presence of vertebral body fracture before RT, fracture progression or other recorded MRI features of metastatic lesions. Conclusion: RT provided excellent local tumor control in patients with SM. Most patients benefit from RT even in cases of progressive vertebral fracture. Pain response was not associated with imaging findings and MRI cannot be used to select patients at risk of not responding to RT.
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- 2014
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4. Giant Cell Tumor: A Rare Condition in the Immature Skeleton—A Retrospective Study of Symptoms, Treatment, and Outcome in 16 Children
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Thale M. Asp Strøm, Anette Torød Skeie, Ingvild Koren Lobmaier, and Olga Zaikova
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Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Background. Pediatric giant cell tumor (GCT) of bone is rare and the course of the disease in the immature skeleton is sparsely described. We performed a retrospective study addressing symptoms, treatment, and outcome in children with GCT. Methods. Review of medical records and images of patients with GCT. Patients were detected from our hospital prospective database and those with open epiphyseal cartilages were included. Results. 16 children (75% girls) from 6 to 15 years old were identified. Eight lesions (50%) were in long bones and 4 (25%) in flat bones. One lesion appeared to be purely epiphyseal. All patients had pain as the initial symptom. Local recurrence developed in 2 patients. 14 of 16 patients returned to normal activity with no sequelae. One patient developed anisomelia after surgery. Conclusions. The biological tumor behavior in children does not seem to differ from what is reported in adults. Lesions in flat bones are very unusual, but our data alone do not provide enough evidence to conclude that this is more common in the immature skeleton. Literature review showed only one previous case report describing a purely epiphyseal GCT. Intralesional curettage is appropriate treatment and gives good functional results with acceptable recurrence rates.
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- 2016
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5. Prognostic Factors and Treatment Results of High-Grade Osteosarcoma in Norway: A Scope Beyond the 'Classical' Patient
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Kjetil Berner, Kirsten Sundby Hall, Odd R. Monge, Harald Weedon-Fekjær, Olga Zaikova, and Øyvind S. Bruland
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Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Purpose. A retrospective study of prognostic factors and treatment outcome of osteosarcoma (OS) during modern chemotherapy era with focus on patients with primary metastatic disease, nonextremity localisation, or age >40 years (nonclassical OS). Methods. A nationwide cohort, comprising 424 high-grade Norwegian bone OS patients, was based on registry sources supplemented with clinical records from hospitals involved in sarcoma management between 1975 and 2009. Results. Only 48% were younger patients with tumour in the extremities and without metastasis at diagnosis (classical OS). A considerable discrepancy in survival between classical and nonclassical OS was observed: 61% versus 26% 10-year sarcoma specific survival. Twice as many of the former received both adequate surgery and chemotherapy compared to the latter. This could only partly explain the differences in survival due to inherent chemoresistance in primary metastatic disease and a higher rate of local relapse among patients with axial tumours. Metastasis at diagnosis, increased lactate dehydrogenase, age > 40 years, and tumour size above median value were all adverse prognostic factors for overall survival. Conclusion. We confirm a dramatic difference in outcome between classical and nonclassical high-grade OS patients, but treatment variables could only partly explain the dismal outcome of the latter.
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- 2015
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6. Multimodality treatment of undifferentiated pleomorphic soft tissue sarcoma of the extremity (eUPS) in the elderly
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Roos F. Bleckman, Ibtissam Acem, Veroniek M. van Praag, Desirée M.J. Dorleijn, Cornelis Verhoef, Yvonne M. Schrage, Rick M.L. Haas, Michiel A.J. van de Sande, null the collaborative Persarc research group, Han Bonenkamp, Robert J. van Ginkel, Dirk J. Grünhagen, Lee M. Jeys, Johnny Keller, Emelie Styring, Joanna Szkandera, Olga Zaikova, Surgery, and Guided Treatment in Optimal Selected Cancer Patients (GUTS)
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Radiotherapy ,Extremities ,Sarcoma ,Soft Tissue Neoplasms ,General Medicine ,Age group ,Tumours of the digestive tract Radboud Institute for Health Sciences [Radboudumc 14] ,All institutes and research themes of the Radboud University Medical Center ,Oncology ,SDG 3 - Good Health and Well-being ,Surgical oncology ,Humans ,Surgery ,Neoplasm Recurrence, Local ,Aged ,Retrospective Studies - Abstract
Introduction: This subgroup analysis of undifferentiated pleomorphic soft tissue sarcoma of the extremity (eUPS) from the PERSARC collaborative group aimed to achieve a more personalized multimodality treatment approach for primary eUPS in elderly patients.Material and methods: A multicenter retrospective study including primary high-grade eUPS surgically treated with curative intent between 2000 and 2016. Overall survival (OS), local recurrence (LR) and distant metastasis (DM) curves were calculated by Kaplan Meier analysis. Cox proportional hazard models were used to determine the effect of radiotherapy.Results: From a total of 2511 patients with extremity soft tissue sarcoma (eSTS) of the PERSARC study collaborative; 703 patients with eUPS were included in this study. In elderly patients with eUPS 5-year OS, LR and DM were 35.4 (95%CI 29.3-42.8), 17.7 (95%CI 12.7-22.6) and 24.6 (95%CI 19.1-30.1). eUPS was significantly less treated with radiotherapy compared with other eSTS, especially in elderly patients. Patients with R1-R2 margins treated with radiotherapy had about half the risk of developing LR compared with patients treated without radiotherapy (HR = 0.454, p = 0.033).Conclusion: Elderly patients with eUPS were less often treated with radiotherapy and showed higher LR. Nowadays, given an increasing life expectancy in elderly patients, multimodality treatment should be considered. (C) 2021 The Authors. Published by Elsevier Ltd.
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- 2022
7. The role of perioperative chemotherapy in primary high-grade extremity soft tissue sarcoma
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Ibtissam Acem, Winan J. van Houdt, Dirk J. Grünhagen, Winette T.A. van der Graaf, Anja J. Rueten-Budde, Hans Gelderblom, Cornelis Verhoef, Michiel A.J. van de Sande, Will Aston, Han Bonenkamp, Ingrid M.E. Desar, Peter C. Ferguson, Marta Fiocco, Robert J. van Ginkel, Anthony M. Griffin, Rick L. Haas, Jos A. van der Hage, Andrew J. Hayes, Lee M. Jeys, Akira Kawai, Johnny Keller, Minna K. Laitinen, Katja Maretty-Kongstad, Koichi Ogura, Toshifumi Ozaki, Rob Pollock, Veroniek M. van Praag, Stefan Sleijfer, Myles J. Smith, Maria A. Smolle, Emelie Styring, Joanna Szkandera, Kazuhiro Tanaka, Per-Ulf Tunn, Madeleine Willegger, Reinard Windhager, Jay S. Wunder, Olga Zaikova, Surgery, and Medical Oncology
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Cancer Research ,Soft tissue sarcoma ,Sarcoma ,Soft Tissue Neoplasms ,Extremities ,Anthracycline ,Oncology ,SDG 3 - Good Health and Well-being ,Antineoplastic Combined Chemotherapy Protocols ,Humans ,Chemotherapy ,Ifosfamide ,Prediction ,Retrospective Studies ,Rare cancers Radboud Institute for Health Sciences [Radboudumc 9] - Abstract
Objective: The aim of the study is to assess the effect of perioperative chemo-therapy (CTX) in patients with grade II-III extremity soft tissue sarcoma (eSTS) on overall survival (OS) and evaluate whether the PERSARC prediction tool could identify patients with eSTS more likely to benefit from CTX.Methods: Patients (18-70 years) with primary high-grade eSTS surgically treated with cura-tive intent were included in the retrospective cohort study. The effect of any perioperative CTX and anthracycline + ifosfamide (AI)-based CTX on OS was investigated in three PERSARC-risk groups (high/intermediate/low). The PERSARC-risk groups were defined by the 33% and 66% quantile of the predicted 5-year OS of the study population equal to a 5-year OS of 65.8% and 79.8%, respectively. The effect of CTX on OS was investigated with weighted Kaplan-Meier curves and multivariable Cox models with an interaction between risk group and CTX.Results: This study included 5683 patients. The weighted Kaplan-Meier curves did not demonstrate a beneficial effect of any CTX and AI-based CTX on OS in the overall population. However, in the high PERSARC-risk group the 5-year OS of AI-based CTX was significantly better than no CTX (69.8% vs 59.0%, respectively, p Z 0.004) (HR 0.66, 95% CI 0.53-0.83).Conclusions: This study demonstrated a beneficial effect of AI-based CTX on OS in a selected group of high-risk patients with an absolute survival benefit of 11% as stratified by the PERSARC prediction tool. However, no beneficial effect of CTX on OS was found in the overall population of patients with primary high-grade eSTS younger than 70 years.(c) 2022 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
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- 2022
8. A woman in her fifties with a lump in the palm of her hand
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Magne Røkkum, Ingeborg Taksdal, Ingvild Victoria Koren Lobmaier, Olga Zaikova, Rasmus Dehli Thorkildsen, and Ole-Gunnar Olsen
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Humans ,Female ,General Medicine ,Hand - Abstract
A previously healthy woman in her fifties contacted her general practitioner due to a troublesome lump on her hand that had progressed over the course of a year. The final diagnosis surprised those involved and serves as a reminder to both general practitioners and specialists.
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- 2022
9. Corrigendum to ‘Age-related differences of oncological outcomes in primary extremity soft tissue sarcoma: a multistate model including 6260 patients’ [Eur J Cancer 141 (2020) 128-136]
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Ibtissam Acem, Cornelis Verhoef, Anja J. Rueten-Budde, Dirk J. Grünhagen, Winan J. van Houdt, Michiel A.J. van de Sande, Will Aston, Han Bonenkamp, Ingrid M.E. Desar, Peter C. Ferguson, Marta Fiocco, Hans Gelderblom, Robert J. van Ginkel, Winette van der Graaf, Anthony M. Griffin, Rick L. Haas, Jos A. van der Hage, Andrew J. Hayes, Lee M. Jeys, Johnny Keller, Minna K. Laitinen, Andreas Leithner, Katja Maretty-Kongstad, Toshifumi Ozaki, Rob Pollock, Veroniek M. van Praag, Myles J. Smith, Maria A. Smolle, Emelie Styring, Joanna Szkandera, Kazuhiro Tanaka, Per-Ulf Tunn, Madeleine Willegger, Reinard Windhager, Jay S. Wunder, and Olga Zaikova
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Cancer Research ,Oncology - Published
- 2022
10. Risk stratification for central conventional chondrosarcoma of bone: A novel system predicting risk of metastasis and death in the Cancer Registry of Norway cohort
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Tor Age Myklebust, Ingeborg Taksdal, Joachim Thorkildsen, Bodil Bjerkehagen, Olga Zaikova, and Ole-Jacob Norum
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Adult ,Male ,Oncology ,Prognostic variable ,medicine.medical_specialty ,Multivariate analysis ,Adolescent ,Chondrosarcoma ,Bone Neoplasms ,Kaplan-Meier Estimate ,Risk Assessment ,Metastasis ,Cohort Studies ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,medicine ,Humans ,Registries ,Neoplasm Metastasis ,Grading (tumors) ,Aged ,Proportional Hazards Models ,Aged, 80 and over ,Norway ,business.industry ,Hazard ratio ,General Medicine ,Middle Aged ,Prognosis ,medicine.disease ,Survival Analysis ,Cancer registry ,030220 oncology & carcinogenesis ,Cohort ,Female ,030211 gastroenterology & hepatology ,Surgery ,business ,Follow-Up Studies - Abstract
Background and Objectives Interobserver variability in histological grading of central conventional chondrosarcoma (CCCS) limits the quality of patient information and research progression. We aim to quantify known and new prognostic variables and propose a risk stratification model. Method We selected 149 cases from the Cancer Registry of Norway. Cox proportional hazard models were estimated. Based on these results a dichotomous risk classification was proposed and presented by Kaplan‐Meier estimates for rates of local recurrence, metastasis, and disease‐specific survival. Results The influence of axial skeletal location (Hazard ratio [HR] = 19.06), a soft tissue component ≥1 cm (HR = 13.45), and histological grade 3 (HR = 16.46) are all significant in predicting the rate of metastasis. The creation of a variable combining axial skeletal location and a soft tissue component ≥1 cm strongly predicts the risk of metastasis (HR = 14.02; P
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- 2020
11. Real-world evidence on perioperative chemotherapy in localized soft tissue sarcoma of the extremities and trunk wall; a population-based study
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Kjetil Boye, Ingvild Lobmaier, Marthe Rosvoll Kobbeltvedt, Joachim Thorkildsen, Ingeborg Taksdal, Bodil Bjerkehagen, Øyvind S. Bruland, Olga Zaikova, Kirsten Sundby Hall, and Ivar Hompland
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Adult ,Oncology ,Chemotherapy, Adjuvant ,Antineoplastic Combined Chemotherapy Protocols ,Humans ,Extremities ,Sarcoma ,Soft Tissue Neoplasms ,Radiology, Nuclear Medicine and imaging ,Hematology ,General Medicine ,Cardiotoxicity - Abstract
Background Data from the real-world setting on perioperative chemotherapy in high-risk, localized soft tissue sarcoma (STS) is limited. Real-world data (RWD) includes data derived from patients treated outside clinical trials and often captures long-term follow-up not recorded in clinical trials. The aim of this study was to provide population-based, real-world evidence on perioperative chemotherapy in localized STS. Material and methods Adult patients with localized STS in the extremities or trunk wall treated at Oslo University Hospital, Oslo, Norway from 1998 to 2017 were included in the study. Data were extracted from a prospectively maintained database, supplemented by retrospective review of medical records. Results The total study cohort included 806 patients, of whom 154 (19%) received perioperative chemotherapy. A regimen with anthracycline and ifosfamide was given in 141 of 154 cases (92%). During long-term follow-up two patients developed secondary malignancies, cardiac toxicity was registered in 11 patients (7%) and renal toxicity in 12 patients (8%). Seventy-one of 154 patients (46%) were treated outside of clinical trials and constituted the RWD cohort. The median age at surgery was slightly lower and there were more synovial sarcomas and fewer myxofibrosarcomas in the RWD cohort. No difference in chemotherapy dose intensity was observed. The estimated 5-year metastasis-free survival (MFS) in all patients receiving perioperative chemotherapy was 58%. In the RWD cohort 5-year MFS was 53% and in the clinical study cohort 61% (HR 1.24; 95% CI 0.77–2.00). Conclusion Long-term outcome after perioperative chemotherapy was comparable for patients treated in routine clinical practice to those in clinical trials. Secondary malignancy and cardiac toxicity were observed. The risk of serious late side effects should be included in the decision process on perioperative chemotherapy.
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- 2022
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12. Soft‐tissue sarcoma in adolescents and young adults compared with older adults: A report among 5000 patients from the Scandinavian Sarcoma Group Central Register
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Philip J. Lupo, Beatrice Melin, Vidal M. Arroyo, Karin Papworth, Olga Zaikova, and Emelie Styring
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Adult ,Male ,Cancer Research ,Pediatrics ,medicine.medical_specialty ,Adolescent ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Risk Factors ,Humans ,Medicine ,030212 general & internal medicine ,Young adult ,Aged ,Aged, 80 and over ,Sex Characteristics ,business.industry ,Soft tissue sarcoma ,Age Factors ,Cancer ,Sarcoma ,Middle Aged ,medicine.disease ,humanities ,Treatment Outcome ,Oncology ,Register (music) ,030220 oncology & carcinogenesis ,Female ,Neoplasm Recurrence, Local ,business - Abstract
In recent years, there has been growing awareness of the distinct characteristics of adolescents and young adults (AYA) diagnosed with cancer. Soft-tissue sarcoma (STS) accounts for approximately 1% of all cancers diagnosed in adults and 8% of cancers diagnosed in AYA. To the best of our knowledge, only a few sarcoma registers include data regarding histological subtype, age at diagnosis, and detailed clinical information. Therefore, little is known regarding clinical presentation and outcomes in AYA diagnosed with STS.Using the Scandinavian Sarcoma Group Central Register, data were obtained regarding 4977 patients who were diagnosed with STS for the period between 1986 and 2011. AYA (those aged 18-39 years) were compared with older adults (OA; those aged 40-80 years) with respect to clinical presentation, treatment, and outcome.There were 868 AYA and 4109 OA. Overall and by STS subtype, there were significant differences noted between AYA and OA with regard to presentation, treatment, and survival. The distribution of STS subtypes was different between OA and AYA (eg, OA were more likely to be diagnosed with malignant fibrous histiocytoma compared with AYA [34% vs 16%; P .001]). OA also were more likely to have tumors measuring ≥5 cm (68% vs 56%; P .001) and a higher malignancy grade (75% vs 67%; P .001). In the majority of STS subtypes AYA had significantly better overall survival and less disease recurrence compared with OA, but this finding was not true for those with malignant peripheral nerve sheath tumors.There are several differences between AYA and OA with STS with regard to presentation, treatment, and survival, and such differences must be taken into consideration when designing clinical trials. Additional work also is needed to characterize the potential biological mechanisms underlying these differences.
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- 2019
13. Age-related differences of oncological outcomes in primary extremity soft tissue sarcoma
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Jay S. Wunder, Marta Fiocco, Han J. Bonenkamp, Robert J. van Ginkel, Reinard Windhager, Kazuhiro Tanaka, Anja J. Rueten-Budde, Ibtissam Acem, Johnny Keller, Emelie Styring, Andreas Leithner, Anthony M. Griffin, Will Aston, Olga Zaikova, Dirk J. Grünhagen, Michiel A. J. van de Sande, Rob Pollock, Veroniek M. van Praag, Joanna Szkandera, Madeleine Willegger, Winan J. van Houdt, Lee Jeys, Myles Smith, Andrew J. Hayes, Katja Maretty-Kongstad, Minna Laitinen, Rick L. Haas, Peter C. Ferguson, Jos A. van der Hage, Cornelis Verhoef, Per-Ulf Tunn, Maria Anna Smolle, Toshifumi Ozaki, Hans Gelderblom, Winette T. A. van der Graaf, Ingrid M.E. Desar, Surgery, HUS Musculoskeletal and Plastic Surgery, I kirurgian klinikka (Töölö), and Department of Surgery
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Male ,0301 basic medicine ,Cancer Research ,Survival ,Soft Tissue Neoplasms ,Disease ,Metastasis ,Tumours of the digestive tract Radboud Institute for Health Sciences [Radboudumc 14] ,0302 clinical medicine ,Elderly ,Recurrence ,Young adult ,10. No inequality ,Aged, 80 and over ,education.field_of_study ,Soft tissue sarcoma ,Hazard ratio ,Age Factors ,Sarcoma ,Middle Aged ,3. Good health ,Oncology ,030220 oncology & carcinogenesis ,Disease Progression ,Female ,Rare cancers Radboud Institute for Health Sciences [Radboudumc 9] ,Adult ,medicine.medical_specialty ,Adolescent ,3122 Cancers ,Population ,Middle-aged ,Young Adult ,03 medical and health sciences ,Internal medicine ,Age related ,medicine ,Humans ,education ,Aged ,Retrospective Studies ,business.industry ,Extremities ,medicine.disease ,Confidence interval ,Adolescents and young adults ,030104 developmental biology ,business - Abstract
Purpose: No studies extensively compared the young adults (YA, 18-39 years), middle-aged (40-69 years), and elderly (≥70 years) population with primary high-grade extremity soft tissue sarcoma (eSTS). This study aimed to determine whether the known effect of age on overall survival (OS) and disease progression can be explained by differences in tumour characteristics and treatment protocol among the YA, middle-aged and elderly population in patients with primary high-grade eSTS treated with curative intent. Methods: In this retrospective multicentre study, inclusion criteria were patients with primary high-grade eSTS of 18 years and older, surgically treated with curative intent between 2000 and 2016. Cox proportional hazard models and a multistate model were used to determine the association of age on OS and disease progression. Results: A total of 6260 patients were included in this study. YA presented more often after 'whoops'-surgery or for reresection due to residual disease, and with more deep-seated tumours. Elderly patients presented more often with grade III and larger (≥10 cm) tumours. After adjustment for the imbalance in tumour and treatment characteristics the hazard ratio for OS of the middle-aged population is 1.47 (95% confidence interval [CI]: 1.23-1.76) and 3.13 (95% CI: 2.59-3.78) in the elderly population, compared with YA. Discussion: The effect of age on OS could only partially be explained by the imbalance in the tumour characteristics and treatment variables. The threefold higher risk of elderly could, at least partially, be explained by a higher other-cause mortality. The results might also be explained by a different tumour behaviour or suboptimal treatment in elderly compared with the younger population. Keywords: Adolescents and young adults; Elderly; Extremities; Metastasis; Middle-aged; Recurrence; Soft tissue sarcoma; Survival.
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- 2020
14. Chondrosarcoma local recurrence in the Cancer Registry of Norway cohort (1990-2013): Patterns and impact
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Joachim Thorkildsen, Tor Age Myklebust, Olga Zaikova, and Ole-Jacob Norum
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Oncology ,Adult ,Male ,medicine.medical_specialty ,Adolescent ,medicine.medical_treatment ,Chondrosarcoma ,Bone Neoplasms ,Metastasis ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,Risk Factors ,Internal medicine ,medicine ,Humans ,Prospective Studies ,Registries ,Aged ,Aged, 80 and over ,business.industry ,Proportional hazards model ,Norway ,Hazard ratio ,General Medicine ,Middle Aged ,medicine.disease ,Prognosis ,Curettage ,Confidence interval ,Cancer registry ,Survival Rate ,030220 oncology & carcinogenesis ,Cohort ,030211 gastroenterology & hepatology ,Surgery ,Female ,Neoplasm Recurrence, Local ,business ,Follow-Up Studies - Abstract
Background There appears to be an association between local recurrence (LR) and risk of metastasis and death in central conventional chondrosarcoma (CCCS) of bone, but this has not been quantified in modern cohorts at a subtype level. Methods We identified nonmetastatic cases of CCCS (N = 180) from the Cancer Registry of Norway. We present prognostic analysis of LR accounting for immortal time bias by descriptive statistics and multivariable Cox models. Results Of 40 LR, one case demonstrated upgrading while two dedifferentiation. LR was associated with increased risk of metastasis (hazard ratio [HR] = 4.1 [confidence interval, 1.5-10.7]) and death (HR = 9.3 [5.0-17.5]) overall. LR was associated with significant increased risk of metastasis for those with a soft tissue component, axial location, malignancy grade 2, but not atypical cartilaginous tumor's, appropriately treated curettage patients, intramedullary tumors, grade 1 histology, extremity location or "Oslo low risk" group status. We found an increased risk of death for all groups except for those treated by appropriate curettage or belonging to the "Oslo low risk" group. About 50% of LR CCCS were asymptomatic and revealed by routine follow-up. Conclusions Upgrading of LR for CCCS was a seldom event. LR was associated with significant increased risk of metastasis and death overall, but not for appropriately treated curettage patients or "Oslo low risk" status.
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- 2020
15. Cover Image, Volume 121, Number 7, June 1, 2020
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Joachim Thorkildsen, Ingeborg Taksdal, Bodil Bjerkehagen, Ole‐Jacob Norum, Tor Age Myklebust, and Olga Zaikova
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Oncology ,Surgery ,General Medicine - Published
- 2020
16. Retrospective evaluation of whole exome and genome mutation calls in 746 cancer samples
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Bailey, Matthew H, Meyerson, William U, Dursi, Lewis Jonathan, Wang, Liang-Bo, Dong, Guanlan, Liang, Wen-Wei, Weerasinghe, Amila, Shantao, Li, Kelso, Sean, Saksena, Gordon, Ellrott, Kyle, Wendl, Michael C, Wheeler, David A, Getz, Gad, Simpson, Jared T, Gerstein, Mark B, Ding, Lirehan, Akbani, Pavana, Anur, Matthew, H Bailey, Alex, Buchanan, Kami, Chiotti, Kyle, Covington, Allison, Creason, Ding, Li, Kyle, Ellrott, Fan, Yu, Steven, Foltz, Gad, Getz, Walker, Hale, David, Haussler, Julian, M Hess, Carolyn, M Hutter, Cyriac, Kandoth, Katayoon, Kasaian, Melpomeni, Kasapi, Dave, Larson, Ignaty, Leshchiner, John, Letaw, Singer, Ma, Michael, D McLellan, Yifei, Men, Gordon, B Mills, Beifang, Niu, Myron, Peto, Amie, Radenbaugh, Sheila, M Reynolds, Gordon, Saksena, Heidi, Sofia, Chip, Stewart, Adam, J Struck, Joshua, M Stuart, Wenyi, Wang, John, N Weinstein, David, A Wheeler, Christopher, K Wong, Liu, Xi, Kai, Ye, Matthias, Bieg, Paul, C Boutros, Ivo, Buchhalter, Adam, P Butler, Ken, Chen, Zechen, Chong, Oliver, Drechsel, Lewis Jonathan Dursi, Roland, Eils, Shadrielle M, G Espiritu, Robert, S Fulton, Shengjie, Gao, Josep L, L Gelpi, Mark, B Gerstein, Santiago, Gonzalez, Ivo, G Gut, Faraz, Hach, Michael, C Heinold, Jonathan, Hinton, Taobo, Hu, Vincent, Huang, Huang, Yi, Barbara, Hutter, David, R Jones, Jongsun, Jung, Natalie, Jäger, Hyung-Lae, Kim, Kortine, Kleinheinz, Sushant, Kumar, Yogesh, Kumar, Christopher, M Lalansingh, Ivica, Letunic, Dimitri, Livitz, Eric, Z Ma, Yosef, E Maruvka, R Jay Mashl, Andrew, Menzies, Ana, Milovanovic, Morten Muhlig Nielsen, Stephan, Ossowski, Nagarajan, Paramasivam, Jakob Skou Pedersen, Marc, D Perry, Montserrat, Puiggròs, Keiran, M Raine, Esther, Rheinbay, Romina, Royo, S Cenk Sahinalp, Iman, Sarrafi, Matthias, Schlesner, Jared, T Simpson, Lucy, Stebbings, Miranda, D Stobbe, Jon, W Teague, Grace, Tiao, David, Torrents, Jeremiah, A Wala, Jiayin, Wang, Sebastian, M Waszak, Joachim, Weischenfeldt, Michael, C Wendl, Johannes, Werner, Zhenggang, Wu, Hong, Xue, Sergei, Yakneen, Takafumi, N Yamaguchi, Venkata, D Yellapantula, Christina, K Yung, Junjun, Zhang, Lauri, A Aaltonen, Federico, Abascal, Adam, Abeshouse, Hiroyuki, Aburatani, David, J Adams, Nishant, Agrawal, Keun Soo Ahn, Sung-Min, Ahn, Hiroshi, Aikata, Rehan, Akbani, Kadir, C Akdemir, Hikmat, Al-Ahmadie, Sultan, T Al-Sedairy, Fatima, Al-Shahrour, Malik, Alawi, Monique, Albert, Kenneth, Aldape, Ludmil, B Alexandrov, Adrian, Ally, Kathryn, Alsop, Eva, G Alvarez, Fernanda, Amary, Samirkumar, B Amin, Brice, Aminou, Ole, Ammerpohl, Matthew, J Anderson, Yeng, Ang, Davide, Antonello, Samuel, Aparicio, Elizabeth, L Appelbaum, Yasuhito, Arai, Axel, Aretz, Koji, Arihiro, Shun-Ichi, Ariizumi, Joshua, Armenia, Laurent, Arnould, Sylvia, Asa, Yassen, Assenov, Gurnit, Atwal, Sietse, Aukema, J Todd Auman, Miriam, R Aure, Philip, Awadalla, Marta, Aymerich, Gary, D Bader, Adrian, Baez-Ortega, Peter, J Bailey, Miruna, Balasundaram, Saianand, Balu, Pratiti, Bandopadhayay, 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[0000-0003-4526-9727], Dursi, Lewis Jonathan [0000-0002-4697-798X], Wang, Liang-Bo [0000-0001-6977-9348], Dong, Guanlan [0000-0002-4747-6036], Weerasinghe, Amila [0000-0003-3568-5823], Li, Shantao [0000-0002-5440-2780], Saksena, Gordon [0000-0001-6630-7935], Ellrott, Kyle [0000-0002-6573-5900], Wheeler, David A. [0000-0002-9056-6299], Getz, Gad [0000-0002-0936-0753], Gerstein, Mark B. [0000-0002-9746-3719], Apollo - University of Cambridge Repository, CCA - Cancer biology and immunology, Graduate School, Laboratory Genetic Metabolic Diseases, AGEM - Amsterdam Gastroenterology Endocrinology Metabolism, CCA -Cancer Center Amsterdam, Bailey, M, Meyerson, W, Dursi, L, Wang, L, Dong, G, Liang, W, Weerasinghe, A, Li, S, Kelso, S, Akbani, R, Anur, P, Buchanan, A, Chiotti, K, Covington, K, Creason, A, Ding, L, Ellrott, K, Fan, Y, Foltz, S, Getz, G, Hale, W, Haussler, D, Hess, J, Hutter, C, Kandoth, C, Kasaian, K, Kasapi, M, Larson, D, Leshchiner, I, Letaw, J, Ma, S, Mclellan, M, Men, Y, Mills, G, Niu, B, Peto, M, Radenbaugh, A, Reynolds, S, Saksena, G, Sofia, H, Stewart, C, Struck, A, Stuart, J, Wang, W, Weinstein, J, Wheeler, D, Wong, C, Xi, L, Ye, K, Bieg, M, Boutros, P, Buchhalter, I, Butler, A, Chen, K, Chong, Z, Drechsel, O, Jonathan Dursi, L, Eils, R, Espiritu, S, Fulton, R, Gao, S, Gelpi, J, Gerstein, M, Gonzalez, S, Gut, I, Hach, F, Heinold, M, Hinton, J, Hu, T, 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Yamamoto, S, Yamaue, H, Yang, F, Yang, H, Yang, J, Yang, L, Yang, S, Yang, T, Yang, Y, Yao, X, Yaspo, M, Yates, L, Yau, C, Ye, C, Yoon, C, Yoon, S, Yousif, F, Yu, J, Yu, K, Yu, W, Yu, Y, Yuan, K, Yuan, Y, Yuen, D, Zaikova, O, Zamora, J, Zapatka, M, Zenklusen, J, Zenz, T, Zeps, N, Zhang, C, Zhang, F, Zhang, H, Zhang, X, Zhang, Y, Zhang, Z, Zhao, Z, Zheng, L, Zheng, X, Zhou, W, Zhou, Y, Bin, Z, Zhu, H, Zhu, J, Zhu, S, Zou, L, Zou, X, Defazio, A, van As, N, van Deurzen, C, van de Vijver, M, van't Veer, L, von Mering, C, Heilbrigðisvísindasvið (HÍ), School of Health Sciences (UI), Háskóli Íslands, University of Iceland, Tampere University, BioMediTech, TAYS Cancer Centre, University of St Andrews. Sir James Mackenzie Institute for Early Diagnosis, University of St Andrews. Cellular Medicine Division, University of St Andrews. Statistics, University of St Andrews. School of Medicine, University of Zurich, Gerstein, Mark B, Ding, Li, Bailey, Matthew H [0000-0003-4526-9727], Wheeler, David A [0000-0002-9056-6299], Gerstein, Mark B [0000-0002-9746-3719], Faculty of Economic and Social Sciences and Solvay Business School, Lauri Antti Aaltonen / Principal Investigator, Genome-Scale Biology (GSB) Research Program, Department of Medical and Clinical Genetics, Organismal and Evolutionary Biology Research Programme, Helsinki Institute for Information Technology, Institute of Biotechnology, Bioinformatics, Department of Computer Science, Faculty of Medicine, and HUS Helsinki and Uusimaa Hospital District
- Subjects
VARIANTS ,0302 clinical medicine ,706/648/697/129/2043 ,Databases, Genetic ,Cancer genomics ,SOMATIC POINT MUTATIONS ,Càncer ,lcsh:Science ,Exome ,Exome sequencing ,Cancer ,Base Composition ,Neoplasms -- genetics ,1184 Genetics, developmental biology, physiology ,3100 General Physics and Astronomy ,3. Good health ,030220 oncology & carcinogenesis ,Science & Technology - Other Topics ,Transformació genètica ,Genetic databases ,Erfðarannsóknir ,Human ,GENES ,Science ,1600 General Chemistry ,General Biochemistry, Genetics and Molecular Biology ,RC0254 ,03 medical and health sciences ,Genetic ,SDG 3 - Good Health and Well-being ,1300 General Biochemistry, Genetics and Molecular Biology ,Exome Sequencing ,Genetics ,Humans ,Author Correction ,Retrospective Studies ,Whole genome sequencing ,Comparative genomics ,Science & Technology ,RC0254 Neoplasms. Tumors. Oncology (including Cancer) ,INSERTIONS ,DNA ,PERFORMANCE ,Human genetics ,Communication and replication ,Cancérologie ,692/4028/67/69 ,Genòmica ,030104 developmental biology ,Mutation ,Genome mutation ,Human genome ,lcsh:Q ,COMPREHENSIVE CHARACTERIZATION ,Genètica ,0301 basic medicine ,Medizin ,General Physics and Astronomy ,Genome ,Whole Exome Sequencing ,Genetic transformation ,International Cancer Genome Consortium ,Neoplasms ,631/114/2399 ,Genamengi ,Medicine and Health Sciences ,Medicine(all) ,Women's cancers Radboud Institute for Molecular Life Sciences [Radboudumc 17] ,Multidisciplinary ,318 Medical biotechnology ,Exome -- genetics ,article ,Exons ,Women's cancers Radboud Institute for Health Sciences [Radboudumc 17] ,Multidisciplinary Sciences ,CAPTURE ,1181 Ecology, evolutionary biology ,oncology ,DNA, Intergenic ,139 ,Medical Genetics ,Biotechnology ,ICGC/TCGA Pan-Cancer Analysis ,3122 Cancers ,610 Medicine & health ,45/23 ,QH426 Genetics ,Biology ,MC3 Working Group ,Databases ,Germline mutation ,PCAWG novel somatic mutation calling methods working group ,Krabbameinsrannsóknir ,Cancer Genome Atlas ,Genome, Human -- genetics ,ddc:610 ,QH426 ,Medicinsk genetik ,Krabbamein ,Intergenic ,Whole Genome Sequencing ,Genome, Human ,Human Genome ,PCAWG Consortium ,DAS ,General Chemistry ,DELETIONS ,Good Health and Well Being ,10032 Clinic for Oncology and Hematology ,3111 Biomedicine ,631/1647/2217/748 - Abstract
MC3 Working Group: Rehan Akbani21, Pavana Anur22, Matthew H. Bailey1,2,3, Alex Buchanan9, Kami Chiotti9, Kyle Covington12,23, Allison Creason9, Li Ding1,2,3,20, Kyle Ellrott9, Yu Fan21, Steven Foltz1,2, Gad Getz8,14,15,16, Walker Hale12, David Haussler24,25, Julian M. Hess8,26, Carolyn M. Hutter27, Cyriac Kandoth28, Katayoon Kasaian29,30, Melpomeni Kasapi27, Dave Larson1 , Ignaty Leshchiner8, John Letaw31, Singer Ma32, Michael D. McLellan1,3,20, Yifei Men32, Gordon B. Mills33,34, Beifang Niu35, Myron Peto22, Amie Radenbaugh24, Sheila M. Reynolds36, Gordon Saksena8, Heidi Sofia27, Chip Stewart8, Adam J. Struck31, Joshua M. Stuart24,37, Wenyi Wang21, John N. Weinstein38, David A. Wheeler12,13, Christopher K. Wong24,39, Liu Xi12 & Kai Ye40,41 21Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. 22Molecular and Medical Genetics, OHSU Knight Cancer Institute, Oregon Health and Science University, Portland, OR 97239, USA. 23Castle Biosciences Inc, Friendswood, TX 77546, USA. 24UC Santa Cruz Genomics Institute, University of California Santa Cruz, Santa Cruz, CA 95064, USA. 25Howard Hughes Medical Institute, University of California Santa Cruz, Santa Cruz, CA 95064, USA. 26Massachusetts General Hospital Center for Cancer Research, Charlestown, MA 02114, USA. 27National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20894, USA. 28Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. 29Ontario Institute for Cancer Research, Toronto, ON M5G 0A3, Canada. 30Canada’s Michael Smith Genome Sciences Centre, BC Cancer, Vancouver, BC V5Z 4S6, Canada. 31Computational Biology Program, School of Medicine, Oregon Health and Science University, Portland, OR 97239, USA. 32DNAnexus Inc, Mountain View, CA 94040, USA. 33Department of Systems Biology, UT MD Anderson Cancer Center, Houston, TX 77030, USA. 34Precision Oncology, OHSU Knight Cancer Institute, Oregon Health and Science University, Portland, OR 97239, USA. 35Computer Network Information Center, Chinese Academy of Sciences, Beijing, China. 36Institute for Systems Biology, Seattle, WA 98109, USA. 37Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, CA 95064, USA. 38Department of Bioinformatics and Computational Biology and Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. 39Biomolecular Engineering Department, University of California Santa Cruz, Santa Cruz, CA 95064, USA. 40School of Elect, PCAWG novel somatic mutation calling methods working group: Matthew H. Bailey1,2,3, Beifang Niu35, Matthias Bieg42,43, Paul C. Boutros6,44,45,46, Ivo Buchhalter43,47,48, Adam P. Butler49, Ken Chen50, Zechen Chong51, Li Ding1,2,3,20, Oliver Drechsel52,53, Lewis Jonathan Dursi6,7, Roland Eils47,48,54,55, Kyle Ellrott9, Shadrielle M. G. Espiritu6, Yu Fan21, Robert S. Fulton1,3,20, Shengjie Gao56, Josep L. l. Gelpi57,58, Mark B. Gerstein5,18,19, Gad Getz8,14,15,16, Santiago Gonzalez59,60, Ivo G. Gut52,61, Faraz Hach62,63, Michael C. Heinold47,48, Julian M. Hess8,26, Jonathan Hinton49, Taobo Hu64, Vincent Huang6, Yi Huang65,66, Barbara Hutter43,67,68, David R. Jones49, Jongsun Jung69, Natalie Jäger47, Hyung-Lae Kim70, Kortine Kleinheinz47,48, Sushant Kumar5,19, Yogesh Kumar64, Christopher M. Lalansingh6, Ignaty Leshchiner8, Ivica Letunic71, Dimitri Livitz8, Eric Z. Ma64, Yosef E. Maruvka8,26,72, R. Jay Mashl1,2, Michael D. McLellan1,3,20, Andrew Menzies49, Ana Milovanovic57, Morten Muhlig Nielsen73, Stephan Ossowski52,53,74, Nagarajan Paramasivam43,47, Jakob Skou Pedersen73,75, Marc D. Perry76,77, Montserrat Puiggròs57, Keiran M. Raine49, Esther Rheinbay8,14,72, Romina Royo57, S. Cenk Sahinalp62,78,79, Gordon Saksena8, Iman Sarrafi62,78, Matthias Schlesner47,80, Jared T. Simpson6,17, Lucy Stebbings49, Chip Stewart8, Miranda D. Stobbe52,61, Jon W. Teague49, Grace Tiao8, David Torrents57,81, Jeremiah A. Wala8,14,82, Jiayin Wang1,40,66, Wenyi Wang21, Sebastian M. Waszak60, Joachim Weischenfeldt60,83,84, Michael C. Wendl1,10,11, Johannes Werner47,85, Zhenggang Wu64, Hong Xue64, Sergei Yakneen60, Takafumi N. Yamaguchi6, Kai Ye40,41, Venkata D. Yellapantula20,86, Christina K. Yung76 & Junjun Zhang76, PCAWG Consortium: Lauri A. Aaltonen87, Federico Abascal49, Adam Abeshouse88, Hiroyuki Aburatani89, David J. Adams49, Nishant Agrawal90, Keun Soo Ahn91, Sung-Min Ahn92, Hiroshi Aikata93, Rehan Akbani21, Kadir C. Akdemir50, Hikmat Al-Ahmadie88, Sultan T. Al-Sedairy94, Fatima Al-Shahrour95, Malik Alawi96,97, Monique Albert98, Kenneth Aldape99,100, Ludmil B. Alexandrov49,101,102, Adrian Ally30, Kathryn Alsop103, Eva G. Alvarez104,105,106, Fernanda Amary107, Samirkumar B. Amin108,109,110, Brice Aminou76, Ole Ammerpohl111,112, Matthew J. Anderson113, Yeng Ang114, Davide Antonello115, Pavana Anur22, Samuel Aparicio116, Elizabeth L. Appelbaum1,117, Yasuhito Arai118, Axel Aretz119, Koji Arihiro93, Shun-ichi Ariizumi120, Joshua Armenia121, Laurent Arnould122, Sylvia Asa123,124, Yassen Assenov125, Gurnit Atwal6,126,127, Sietse Aukema112,128, J. Todd Auman129, Miriam R. Aure130, Philip Awadalla6,126, Marta Aymerich131, Gary D. Bader126, Adrian Baez-Ortega132, Matthew H. Bailey1,2,3, Peter J. Bailey133, Miruna Balasundaram30, Saianand Balu134, Pratiti Bandopadhayay8,135,136, Rosamonde E. Banks137, Stefano Barbi138, Andrew P. Barbour139,140, Jonathan Barenboim6, Jill Barnholtz-Sloan141,142, Hugh Barr143, Elisabet Barrera59, John Bartlett98,144, Javier Bartolome57, Claudio Bassi115, Oliver F. Bathe145,146, Daniel Baumhoer147, Prashant Bavi148, Stephen B. Baylin149,150, Wojciech Bazant59, Duncan Beardsmore151, Timothy A. Beck152,153, Sam Behjati49, Andreas Behren154, Beifang Niu35, Cindy Bell155, Sergi Beltran52,61, Christopher Benz156, Andrew Berchuck157, Anke K. Bergmann158, Erik N. Bergstrom101,102, Benjamin P. Berman159,160,161, Daniel M. Berney162, Stephan H. Bernhart163,164,165, Rameen Beroukhim8,14,82, Mario Berrios166, Samantha Bersani167, Johanna Bertl73,168, Miguel Betancourt169, Vinayak Bhandari6,44, Shriram G. Bhosle49, Andrew V. Biankin133,170,171,172, Matthias Bieg42,43, Darell Bigner173, Hans Binder163,164, Ewan Birney59, Michael Birrer72, Nidhan K. Biswas174, Bodil Bjerkehagen147,175, Tom Bodenheimer134, Lori Boice176, Giada Bonizzato177, Johann S. De Bono178, Arnoud Boot179,180, Moiz S. Bootwalla166, Ake Borg181, Arndt Borkhardt182, Keith A. Boroevich183,184, Ivan Borozan6, Christoph Borst185, Marcus Bosenberg186, Mattia Bosio52,53,57, Jacqueline Boultwood187, Guillaume Bourque188,189, Paul C. Boutros6,44,45,46, G. Steven Bova190, David T. Bowen49,191, Reanne Bowlby30, David D. L. Bowtell103, Sandrine Boyault192, Rich Boyce59, Jeffrey Boyd193, Alvis Brazma59, Paul Brennan194, Daniel S. Brewer195,196, Arie B. Brinkman197, Robert G. Bristow44,198,199,200,201, Russell R. Broaddus99, Jane E. Brock202, Malcolm Brock203, Annegien Broeks204, Angela N. Brooks8,24,37,82, Denise Brooks30, Benedikt Brors67,205,206, Søren Brunak207,208, Timothy J. C. Bruxner113,209, Alicia L. Bruzos104,105,106, Alex Buchanan9, Ivo Buchhalter43,47,48, Christiane Buchholz210, Susan Bullman8,82, Hazel Burke211, Birgit Burkhardt212, Kathleen H. Burns213,214, John Busanovich8,215, Carlos D. Bustamante216,217, Adam P. Butler49, Atul J. Butte218, Niall J. Byrne76, Anne-Lise Børresen-Dale130,219, Samantha J. Caesar-Johnson220, Andy Cafferkey59, Declan Cahill221, Claudia Calabrese59,60, Carlos Caldas222,223, Fabien Calvo224, Niedzica Camacho178, Peter J. Campbell49,225, Elias Campo226,227, Cinzia Cantù177, Shaolong Cao21, Thomas E. Carey228, Joana Carlevaro-Fita229,230,231, Rebecca Carlsen30, Ivana Cataldo167,177, Mario Cazzola232, Jonathan Cebon154, Robert Cerfolio233, Dianne E. Chadwick234, Dimple Chakravarty235, Don Chalmers236, Calvin Wing Yiu Chan47,237, Kin Chan238, Michelle Chan-Seng-Yue148, Vishal S. Chandan239, David K. Chang133,170, Stephen J. Chanock240, Lorraine A. Chantrill170,241, Aurélien Chateigner76,242, Nilanjan Chatterjee149,243, Kazuaki Chayama93, Hsiao-Wei Chen114,121, Jieming Chen218, Ken Chen50, Yiwen Chen21, Zhaohong Chen244, Andrew D. Cherniack8,82, Jeremy Chien245, Yoke-Eng Chiew246,247, Suet-Feung Chin222,223, Juok Cho8, Sunghoon Cho248, Jung Kyoon Choi249, Wan Choi250, Christine Chomienne251, Zechen Chong51, Su Pin Choo252, Angela Chou170,246, Angelika N. Christ113, Elizabeth L. Christie103, Eric Chuah30, Carrie Cibulskis8, Kristian Cibulskis8, Sara Cingarlini253, Peter Clapham49, Alexander Claviez254, Sean Cleary148,255, Nicole Cloonan256, Marek Cmero257,258,259, Colin C. Collins62, Ashton A. Connor255,260, Susanna L. Cooke133, Colin S. Cooper178,196,261, Leslie Cope149, Vincenzo Corbo138,177, Matthew G. Cordes1,262, Stephen M. Cordner263, Isidro Cortés-Ciriano264,265,266, Kyle Covington12,23, Prue A. Cowin267, Brian Craft24, David Craft8,268, Chad J. Creighton269, Yupeng Cun270, Erin Curley271, Ioana Cutcutache179,180, Karolina Czajka272, Bogdan Czerniak99,273, Rebecca A. Dagg274, Ludmila Danilova149, Maria Vittoria Davi275, Natalie R. Davidson276,277,278,279,280, Helen Davies49,281,282, Ian J. Davis283, Brandi N. Davis-Dusenbery284, Kevin J. Dawson49, Francisco M. De La Vega216,217,285, Ricardo De Paoli-Iseppi211, Timothy Defreitas8, Angelo P. Dei Tos286, Olivier Delaneau287,288,289, John A. Demchok220, Jonas Demeulemeester290,291, German M. Demidov52,53,74, Deniz Demircioğlu292,293, Nening M. Dennis221, Robert E. Denroche148, Stefan C. Dentro49,290,294, Nikita Desai76, Vikram Deshpande72, Amit G. Deshwar295, Christine Desmedt296,297, Jordi Deu-Pons298,299, Noreen Dhalla30, Neesha C. Dhani300, Priyanka Dhingra301,302, Rajiv Dhir303, Anthony DiBiase304, Klev Diamanti305, Li Ding1,2,3,20, Shuai Ding306, Huy Q. Dinh159, Luc Dirix307, HarshaVardhan Doddapaneni12, Nilgun Donmez62,78, Michelle T. Dow244, Ronny Drapkin308, Oliver Drechsel52,53, Ruben M. Drews223, Serge Serge49, Tim Dudderidge150,221, Ana Dueso-Barroso57, Andrew J. Dunford8, Michael Dunn309, Lewis Jonathan Dursi6,7, Fraser R. Duthie133,310, Ken Dutton-Regester311, Jenna Eagles272, Douglas F. Easton312,313, Stuart Edmonds314, Paul A. Edwards223,315, Sandra E. Edwards178, Rosalind A. Eeles178,221, Anna Ehinger316, Juergen Eils54,55, Roland Eils47,48,54,55, Adel El-Naggar99,273, Matthew Eldridge223, Kyle Ellrott9, Serap Erkek60, Georgia Escaramis53,317,318, Shadrielle M. G. Espiritu6, Xavier Estivill53,319, Dariush Etemadmoghadam103, Jorunn E. Eyfjord320, Bishoy M. Faltas280, Daiming Fan321, Yu Fan21, William C. Faquin72, Claudiu Farcas244, Matteo Fassan322, Aquila Fatima323, Francesco Favero324, Nodirjon Fayzullaev76, Ina Felau220, Sian Fereday103, Martin L. Ferguson325, Vincent Ferretti76,326, Lars Feuerbach205, Matthew A. Field327, J. Lynn Fink57,113, Gaetano Finocchiaro328, Cyril Fisher221, Matthew W. Fittall290, Anna Fitzgerald329, Rebecca C. Fitzgerald282, Adrienne M. Flanagan330, Neil E. Fleshner331, Paul Flicek59, John A. Foekens332, Kwun M. Fong333, Nuno A. Fonseca59,334, Christopher S. Foster335,336, Natalie S. Fox6, Michael Fraser6, Scott Frazer8, Milana Frenkel-Morgenstern337, William Friedman338, Joan Frigola298, Catrina C. Fronick1,262, Akihiro Fujimoto184, Masashi Fujita184, Masashi Fukayama339, Lucinda A. Fulton1 , Robert S. Fulton1,3,20, Mayuko Furuta184, P. Andrew Futreal340, Anja Füllgrabe59, Stacey B. Gabriel8, Steven Gallinger148,255,260, Carlo Gambacorti-Passerini341, Jianjiong Gao121, Shengjie Gao56, Levi Garraway82, Øystein Garred342, Erik Garrison49, Dale W. Garsed103, Nils Gehlenborg8,343, Josep L. l. Gelpi57,58, Joshy George110, Daniela S. Gerhard344, Clarissa Gerhauser345, Jeffrey E. Gershenwald346,347, Mark B. Gerstein5,18,19, Moritz Gerstung59,60, Gad Getz8,14,15,16, Mohammed Ghori49, Ronald Ghossein348, Nasra H. Giama349, Richard A. Gibbs12, Anthony J. Gill170,350, Pelvender Gill351, Dilip D. Giri348, Dominik Glodzik49, Vincent J. Gnanapragasam352,353, Maria Elisabeth Goebler354, Mary J. Goldman24, Carmen Gomez355, Santiago Gonzalez59,60, Abel Gonzalez-Perez298,299,356, Dmitry A. Gordenin357, James Gossage358, Kunihito Gotoh359, Ramaswamy Govindan3, Dorthe Grabau360, Janet S. Graham133,361, Robert C. Grant148,260, Anthony R. Green315, Eric Green27, Liliana Greger59, Nicola Grehan282, Sonia Grimaldi177, Sean M. Grimmond362, Robert L. Grossman363, Adam Grundhoff97,364, Gunes Gundem88, Qianyun Guo75, Manaswi Gupta8, Shailja Gupta365, Ivo G. Gut52,61, Marta Gut52,61, Jonathan Göke292,366, Gavin Ha8, Andrea Haake111, David Haan37, Siegfried Haas185, Kerstin Haase290, James E. Haber367, Nina Habermann60, Faraz Hach62,63, Syed Haider6, Natsuko Hama118, Freddie C. Hamdy351, Anne Hamilton267, Mark P. Hamilton368, Leng Han369, George B. Hanna370, Martin Hansmann371, Nicholas J. Haradhvala8,72, Olivier Harismendy102,372, Ivon Harliwong113, Arif O. Harmanci5,373, Eoghan Harrington374, Takanori Hasegawa375, David Haussler24,25, Steve Hawkins223, Shinya Hayami376, Shuto Hayashi375, D. Neil Hayes134,377,378, Stephen J. Hayes379,380, Nicholas K. Hayward211,311, Steven Hazell221, Yao He381, Allison P. Heath382, Simon C. Heath52,61, David Hedley300, Apurva M. Hegde38, David I. Heiman8, Michael C. Heinold47,48, Zachary Heins88, Lawrence E. Heisler152, Eva Hellstrom-Lindberg383, Mohamed Helmy384, Seong Gu Heo385, Austin J. Hepperla134, José María Heredia-Genestar386, Carl Herrmann47,48,387, Peter Hersey211, Julian M. Hess8,26, Holmfridur Hilmarsdottir320, Jonathan Hinton49, Satoshi Hirano388, Nobuyoshi Hiraoka389, Katherine A. Hoadley134,390, Asger Hobolth75,168, Ermin Hodzic78, Jessica I. Hoell182, Steve Hoffmann163,164,165,391, Oliver Hofmann392, Andrea Holbrook166, Aliaksei Z. Holik53, Michael A. Hollingsworth393, Oliver Holmes209,311, Robert A. Holt30, Chen Hong205,237, Eun Pyo Hong385, Jongwhi H. Hong394, Gerrit K. Hooijer395, Henrik Hornshøj73, Fumie Hosoda118, Yong Hou56,396, Volker Hovestadt397, William Howat352, Alan P. Hoyle134, Ralph H. Hruban149, Jianhong Hu12, Taobo Hu64, Xing Hua240, Kuan-lin Huang1,398, Mei Huang176, Mi Ni Huang179,180, Vincent Huang6, Yi Huang65,66, Wolfgang Huber60, Thomas J. Hudson272,399, Michael Hummel400, Jillian A. Hung246,247, David Huntsman401, Ted R. Hupp402, Jason Huse88, Matthew R. Huska403, Barbara Hutter43,67,68, Carolyn M. Hutter27, Daniel Hübschmann48,54,404,405,406, Christine A. Iacobuzio-Donahue348, Charles David Imbusch205, Marcin Imielinski407,408, Seiya Imoto375, William B. Isaacs409, Keren Isaev6,44, Shumpei Ishikawa410, Murat Iskar397, S. M. Ashiqul Islam244, Michael Ittmann411,412,413, Sinisa Ivkovic284, Jose M. G. Izarzugaza414, Jocelyne Jacquemier415, Valerie Jakrot211, Nigel B. Jamieson133,172,416, Gun Ho Jang148, Se Jin Jang417, Joy C. Jayaseelan12, Reyka Jayasinghe1 , Stuart R. Jefferys134, Karine Jegalian418, Jennifer L. Jennings419, Seung-Hyup Jeon250, Lara Jerman60,420, Yuan Ji421,422, Wei Jiao6, Peter A. Johansson311, Amber L. Johns170, Jeremy Johns272, Rory Johnson230,423, Todd A. Johnson183, Clemency Jolly290, Yann Joly424, Jon G. Jonasson320, Corbin D. Jones425, David R. Jones49, David T. W. Jones426,427, Nic Jones428, Steven J. M. Jones30, Jos Jonkers204, Young Seok Ju49,249, Hartmut Juhl429, Jongsun Jung69, Malene Juul73, Randi Istrup Juul73, Sissel Juul374, Natalie Jäger47, Rolf Kabbe47, Andre Kahles276,277,278,279,430, Abdullah Kahraman431,432,433, Vera B. Kaiser434, Hojabr Kakavand211, Sangeetha Kalimuthu148, Christof von Kalle405, Koo Jeong Kang91, Katalin Karaszi351, Beth Karlan435, Rosa Karlić436, Dennis Karsch437, Katayoon Kasaian29,30, Karin S. Kassahn113,438, Hitoshi Katai439, Mamoru Kato440, Hiroto Katoh410, Yoshiiku Kawakami93, Jonathan D. Kay117, Stephen H. Kazakoff209,311, Marat D. Kazanov441,442,443, Maria Keays59, Electron Kebebew444,445, Richard F. Kefford446, Manolis Kellis8,447, James G. Kench170,350,448, Catherine J. Kennedy246,247, Jules N. A. Kerssemakers47, David Khoo273, Vincent Khoo221, Narong Khuntikeo115,449, Ekta Khurana301,302,450,451, Helena Kilpinen117, Hark Kyun Kim452, Hyung-Lae Kim70, Hyung-Yong Kim415, Hyunghwan Kim250, Jaegil Kim8, Jihoon Kim453, Jong K. Kim454, Youngwook Kim455,456, Tari A. King457,458,459, Wolfram Klapper128, Kortine Kleinheinz47,48, Leszek J. Klimczak460, Stian Knappskog49,461, Michael Kneba437, Bartha M. Knoppers424, Youngil Koh462,463, Jan Komorowski305,464, Daisuke Komura410, Mitsuhiro Komura375, Gu Kong415, Marcel Kool426,465, Jan O. Korbel59,60, Viktoriya Korchina12, Andrey Korshunov465, Michael Koscher465, Roelof Koster466, Zsofia Kote-Jarai178, Antonios Koures244, Milena Kovacevic284, Barbara Kremeyer49, Helene Kretzmer164,165, Markus Kreuz467, Savitri Krishnamurthy99,468, Dieter Kube469, Kiran Kumar8, Pardeep Kumar221, Sushant Kumar5,19, Yogesh Kumar64, Ritika Kundra114,121, Kirsten Kübler8,14,72, Ralf Küppers470, Jesper Lagergren383,471, Phillip H. Lai166, Peter W. Laird472, Sunil R. Lakhani473, Christopher M. Lalansingh6, Emilie Lalonde6, Fabien C. Lamaze6, Adam Lambert351, Eric Lander8, Pablo Landgraf474,475, Luca Landoni115, Anita Langerød130, Andrés Lanzós230,231,423, Denis Larsimont476, Erik Larsson477, Mark Lathrop189, Loretta M. S. Lau478, Chris Lawerenz55, Rita T. Lawlor177, Michael S. Lawrence8,72,183, Alexander J. Lazar99,108, Xuan Le479, Darlene Lee30, Donghoon Lee5, Eunjung Alice Lee480, Hee Jin Lee417, Jake June-Koo Lee264,266, Jeong-Yeon Lee481, Juhee Lee482, Ming Ta Michael Lee340, Henry Lee-Six49, Kjong-Van Lehmann276,277,278,279,430, Hans Lehrach483, Dido Lenze400, Conrad R. Leonard209,311, Daniel A. Leongamornlert49,178, Ignaty Leshchiner8, Louis Letourneau484, Ivica Letunic71, Douglas A. Levine88,485, Lora Lewis12, Tim Ley486, Chang Li56,396, Constance H. Li6,44, Haiyan Irene Li30, Jun Li21, Lin Li56, Shantao Li5, Siliang Li56,396, Xiaobo Li56,396, Xiaotong Li5, Xinyue Li56, Yilong Li49, Han Liang21, Sheng-Ben Liang234, Peter Lichter68,397, Pei Lin8, Ziao Lin8,487, W. M. Linehan488, Ole Christian Lingjærde489, Dongbing Liu56,396, Eric Minwei Liu88,301,302, Fei-Fei Liu201,490, Fenglin Liu381,491, Jia Liu492, Xingmin Liu56,396, Julie Livingstone6, Dimitri Livitz8, Naomi Livni221, Lucas Lochovsky5,19,110, Markus Loeffler467, Georgina V. Long211, Armando Lopez-Guillermo493, Shaoke Lou5,19, David N. Louis72, Laurence B. Lovat117, Yiling Lu38, Yong-Jie Lu162,494, Youyong Lu495,496,497, Claudio Luchini167, Ilinca Lungu144,148, Xuemei Luo152, Hayley J. Luxton117, Andy G. Lynch223,315,498, Lisa Lype36, Cristina López111,112, Carlos López-Otín499, Eric Z. Ma64, Yussanne Ma30, Gaetan MacGrogan500, Shona MacRae501, Geoff Macintyre223, Tobias Madsen73, Kazuhiro Maejima184, Andrea Mafficini177, Dennis T. Maglinte166,502, Arindam Maitra174, Partha P. Majumder174, Luca Malcovati232, Salem Malikic62,78, Giuseppe Malleo115, Graham J. Mann211,246,503, Luisa Mantovani-Löffler504, Kathleen Marchal505,506, Giovanni Marchegiani115, Elaine R. Mardis1,193,507, Adam A. Margolin31, Maximillian G. Marin37, Florian Markowetz223,315, Julia Markowski403, Jeffrey Marks508, Tomas Marques-Bonet61,81,386,509, Marco A. Marra30, Luke Marsden351, John W. M. Martens332, Sancha Martin49,510, Jose I. Martin-Subero81,511, Iñigo Martincorena49, Alexander Martinez-Fundichely301,302,451 Yosef E. Maruvka8,26,72, R. Jay Mashl1,2, Charlie E. Massie223, Thomas J. Matthew37, Lucy Matthews178, Erik Mayer221,512, Simon Mayes513, Michael Mayo30, Faridah Mbabaali272, Karen McCune514, Ultan McDermott49, Patrick D. McGillivray19, Michael D. McLellan1,3,20, John D. McPherson148,272,515, John R. McPherson179,180, Treasa A. McPherson260, Samuel R. Meier8, Alice Meng516, Shaowu Meng134, Andrew Menzies49, Neil D. Merrett115,517, Sue Merson178, Matthew Meyerson8,14,82, William U. Meyerson4,5, Piotr A. Mieczkowski518, George L. Mihaiescu76, Sanja Mijalkovic284, Ana Mijalkovic Mijalkovic-Lazic284, Tom Mikkelsen519, Michele Milella253, Linda Mileshkin103, Christopher A. Miller1 , David K. Miller113,170, Jessica K. Miller272, Gordon B. Mills33,34, Ana Milovanovic57, Sarah Minner520, Marco Miotto115, Gisela Mir Arnau267, Lisa Mirabello240, Chris Mitchell103, Thomas J. Mitchell49,315,352, Satoru Miyano375, Naoki Miyoshi375, Shinichi Mizuno521, Fruzsina Molnár-Gábor522, Malcolm J. Moore300, Richard A. Moore30, Sandro Morganella49, Quaid D. Morris127,490, Carl Morrison523,524, Lisle E. Mose134, Catherine D. Moser349, Ferran Muiños298,299, Loris Mularoni298,299, Andrew J. Mungall30, Karen Mungall30, Elizabeth A. Musgrove133, Ville Mustonen525,526,527, David Mutch528, Francesc Muyas52,53,74, Donna M. Muzny12, Alfonso Muñoz59, Jerome Myers529, Ola Myklebost461, Peter Möller530, Genta Nagae89, Adnan M. Nagrial170, Hardeep K. Nahal-Bose76, Hitoshi Nakagama531, Hidewaki Nakagawa184, Hiromi Nakamura118, Toru Nakamura388, Kaoru Nakano184, Tannistha Nandi532, Jyoti Nangalia49, Mia Nastic284, Arcadi Navarro61,81,386, Fabio C. P. Navarro19, David E. Neal223,352, Gerd Nettekoven533, Felicity Newell209,311, Steven J. Newhouse59, Yulia Newton37, Alvin Wei Tian Ng534, Anthony Ng535, Jonathan Nicholson49, David Nicol221, Yongzhan Nie321,536, G. Petur Nielsen72, Morten Muhlig Nielsen73, Serena Nik-Zainal49,281,282,537, Michael S. Noble8, Katia Nones209,311, Paul A. Northcott538, Faiyaz Notta148,539, Brian D. O’Connor76,540, Peter O’Donnell541, Maria O’Donovan282, Sarah O’Meara49, Brian Patrick O’Neill542, J. Robert O’Neill543, David Ocana59, Angelica Ochoa88, Layla Oesper544, Christopher Ogden221, Hideki Ohdan93, Kazuhiro Ohi375, Lucila Ohno-Machado244, Karin A. Oien523,545, Akinyemi I. Ojesina546,547,548, Hidenori Ojima549, Takuji Okusaka550, Larsson Omberg551, Choon Kiat Ong552, Stephan Ossowski52,53,74, German Ott553, B. F. Francis Ouellette76,554, Christine P’ng6, Marta Paczkowska6, Salvatore Paiella115, Chawalit Pairojkul523, Marina Pajic170, Qiang Pan-Hammarström56,555, Elli Papaemmanuil49, Irene Papatheodorou59, Nagarajan Paramasivam43,47, Ji Wan Park385, Joong-Won Park556, Keunchil Park557,558, Kiejung Park559, Peter J. Park264,266, Joel S. Parker518, Simon L. Parsons124, Harvey Pass560, Danielle Pasternack272, Alessandro Pastore276, Ann-Marie Patch209,311, Iris Pauporté251, Antonio Pea115, John V. Pearson209,311, Chandra Sekhar Pedamallu8,14,82, Jakob Skou Pedersen73,75, Paolo Pederzoli115, Martin Peifer270, Nathan A. Pennell561, Charles M. Perou129,518, Marc D. Perry76,77, Gloria M. Petersen562, Myron Peto22, Nicholas Petrelli563, Robert Petryszak59, Stefan M. Pfister426,465,564, Mark Phillips424, Oriol Pich298,299, Hilda A. Pickett478, Todd D. Pihl565, Nischalan Pillay566, Sarah Pinder567, Mark Pinese170, Andreia V. Pinho568, Esa Pitkänen60, Xavier Pivot569, Elena Piñeiro-Yáñez95, Laura Planko533, Christoph Plass345, Paz Polak8,14,15, Tirso Pons570, Irinel Popescu571, Olga Potapova572, Aparna Prasad52, Shaun R. Preston573, Manuel Prinz47, Antonia L. Pritchard311, Stephenie D. Prokopec6, Elena Provenzano574, Xose S. Puente499, Sonia Puig176, Montserrat Puiggròs57, Sergio Pulido-Tamayo505,506, Gulietta M. Pupo246, Colin A. Purdie575, Michael C. Quinn209,311, Raquel Rabionet52,53,576, Janet S. Rader577, Bernhard Radlwimmer397, Petar Radovic284, Benjamin Raeder60, Keiran M. Raine49, Manasa Ramakrishna49, Kamna Ramakrishnan49, Suresh Ramalingam578, Benjamin J. Raphael579, W. Kimryn Rathmell580, Tobias Rausch60, Guido Reifenberger475, Jüri Reimand6,44, Jorge Reis-Filho348, Victor Reuter348, Iker Reyes-Salazar298, Matthew A. Reyna579, Sheila M. Reynolds36, Esther Rheinbay8,14,72, Yasser Riazalhosseini189, Andrea L. Richardson323, Julia Richter111,128, Matthew Ringel581, Markus Ringnér181, Yasushi Rino582, Karsten Rippe405, Jeffrey Roach583, Lewis R. Roberts349, Nicola D. Roberts49, Steven A. Roberts584, A. Gordon Robertson30, Alan J. Robertson113, Javier Bartolomé Rodriguez57, Bernardo Rodriguez-Martin104,105,106, F. Germán Rodríguez-González83,332, Michael H. A. Roehrl44,123,148,234,585,586, Marius Rohde587, Hirofumi Rokutan440, Gilles Romieu588, Ilse Rooman170, Tom Roques262, Daniel Rosebrock8, Mara Rosenberg8,72, Philip C. Rosenstiel589, Andreas Rosenwald590, Edward W. Rowe221,591, Romina Royo57, Steven G. Rozen179,180,592, Yulia Rubanova17,127, Mark A. Rubin423,593,594,595,596, Carlota Rubio-Perez298,299,597, Vasilisa A. Rudneva60, Borislav C. Rusev177, Andrea Ruzzenente598, Gunnar Rätsch276,277,278,279,280,430, Radhakrishnan Sabarinathan298,299,599, Veronica Y. Sabelnykova6, Sara Sadeghi30, S. Cenk Sahinalp62,78,79, Natalie Saini357, Mihoko Saito-Adachi440, Gordon Saksena8, Adriana Salcedo6, Roberto Salgado600, Leonidas Salichos5,19, Richard Sallari8, Charles Saller601, Roberto Salvia115, Michelle Sam272, Jaswinder S. Samra115,602, Francisco Sanchez-Vega114,121, Chris Sander276,603,604, Grant Sanders134, Rajiv Sarin605, Iman Sarrafi62,78, Aya Sasaki-Oku184, Torill Sauer489, Guido Sauter520, Robyn P. M. Saw211, Maria Scardoni167, Christopher J. Scarlett170,606, Aldo Scarpa177, Ghislaine Scelo194, Dirk Schadendorf68,607, Jacqueline E. Schein30, Markus B. Schilhabel589, Matthias Schlesner47,80, Thorsten Schlomm84,608, Heather K. Schmidt1 , Sarah-Jane Schramm246, Stefan Schreiber609, Nikolaus Schultz121, Steven E. Schumacher8,323, Roland F. Schwarz59,403,405,610, Richard A. Scolyer211,448,602, David Scott428, Ralph Scully611, Raja Seethala612, Ayellet V. Segre8,613, Iris Selander260, Colin A. Semple434, Yasin Senbabaoglu276, Subhajit Sengupta614, Elisabetta Sereni115, Stefano Serra585, Dennis C. Sgroi72, Mark Shackleton103, Nimish C. Shah352, Sagedeh Shahabi234, Catherine A. Shang329, Ping Shang211, Ofer Shapira8,323, Troy Shelton271, Ciyue Shen603,604, Hui Shen615, Rebecca Shepherd49, Ruian Shi490, Yan Shi134, Yu-Jia Shiah6, Tatsuhiro Shibata118,616, Juliann Shih8,82, Eigo Shimizu375, Kiyo Shimizu617, Seung Jun Shin618, Yuichi Shiraishi375, Tal Shmaya285, Ilya Shmulevich36, Solomon I. Shorser6, Charles Short59, Raunak Shrestha62, Suyash S. Shringarpure217, Craig Shriver619, Shimin Shuai6,126, Nikos Sidiropoulos83, Reiner Siebert112,620, Anieta M. Sieuwerts332, Lina Sieverling205,237, Sabina Signoretti202,621, Katarzyna O. Sikora177, Michele Simbolo138, Ronald Simon520, Janae V. Simons134, Jared T. Simpson6,17, Peter T. Simpson473, Samuel Singer115,458, Nasa Sinnott-Armstrong8,217, Payal Sipahimalani30, Tara J. Skelly390, Marcel Smid332, Jaclyn Smith622, Karen Smith-McCune514, Nicholas D. Socci276, Heidi J. Sofia27, Matthew G. Soloway134, Lei Song240, Anil K. Sood623,624,625, Sharmila Sothi626, Christos Sotiriou244, Cameron M. Soulette37, Paul N. Span627, Paul T. Spellman22, Nicola Sperandio177, Andrew J. Spillane211, Oliver Spiro8, Jonathan Spring628, Johan Staaf181, Peter F. Stadler163,164,165, Peter Staib629, Stefan G. Stark277,279,618,630, Lucy Stebbings49, Ólafur Andri Stefánsson631, Oliver Stegle59,60,632, Lincoln D. Stein6,126, Alasdair Stenhouse633, Chip Stewart8, Stephan Stilgenbauer634, Miranda D. Stobbe52,61, Michael R. Stratton49, Jonathan R. Stretch211, Adam J. Struck31, Joshua M. Stuart24,37, Henk G. Stunnenberg396,635, Hong Su56,396, Xiaoping Su99, Ren X. Sun6, Stephanie Sungalee60, Hana Susak52,53, Akihiro Suzuki89,636, Fred Sweep637, Monika Szczepanowski128, Holger Sültmann67,638, Takashi Yugawa617, Angela Tam30, David Tamborero298,299, Benita Kiat Tee Tan639, Donghui Tan518, Patrick Tan180,532,592,640, Hiroko Tanaka375, Hirokazu Taniguchi616, Tomas J. Tanskanen641, Maxime Tarabichi49,290, Roy Tarnuzzer220, Patrick Tarpey642, Morgan L. Taschuk152, Kenji Tatsuno89, Simon Tavaré223,643, Darrin F. Taylor113, Amaro Taylor-Weiner8, Jon W. Teague49, Bin Tean Teh180,592,640,644,645, Varsha Tembe246, Javier Temes104,105, Kevin Thai76, Sarah P. Thayer393, Nina Thiessen30, Gilles Thomas646, Sarah Thomas221, Alan Thompson221, Alastair M. Thompson633, John F. Thompson211, R. Houston Thompson647, Heather Thorne103, Leigh B. Thorne176, Adrian Thorogood424, Grace Tiao8, Nebojsa Tijanic284, Lee E. Timms272, Roberto Tirabosco648, Marta Tojo106, Stefania Tommasi649, Christopher W. Toon170, Umut H. Toprak48,650, David Torrents57,81, Giampaolo Tortora651,652, Jörg Tost653, Yasushi Totoki118, David Townend654, Nadia Traficante103, Isabelle Treilleux655,656, Jean-Rémi Trotta61, Lorenz H. P. Trümper469, Ming Tsao124,539, Tatsuhiko Tsunoda183,657,658,659, Jose M. C. Tubio104,105,106, Olga Tucker660, Richard Turkington661, Daniel J. Turner513, Andrew Tutt323, Masaki Ueno376, Naoto T. Ueno662, Christopher Umbricht151,213,663, Husen M. Umer305,664, Timothy J. Underwood665, Lara Urban59,60, Tomoko Urushidate616, Tetsuo Ushiku339, Liis Uusküla-Reimand666,667, Alfonso Valencia57,81, David J. Van Den Berg166, Steven Van Laere307, Peter Van Loo290,291, Erwin G. Van Meir668, Gert G. Van den Eynden307, Theodorus Van der Kwast123, Naveen Vasudev137, Miguel Vazquez57,669, Ravikiran Vedururu267, Umadevi Veluvolu518, Shankar Vembu490,670, Lieven P. C. Verbeke506,671, Peter Vermeulen307, Clare Verrill351,672, Alain Viari177, David Vicente57, Caterina Vicentini177, K. Vijay Raghavan365, Juris Viksna673, Ricardo E. Vilain674, Izar Villasante57, Anne Vincent-Salomon635, Tapio Visakorpi190, Douglas Voet8, Paresh Vyas311,351, Ignacio Vázquez-García49,86,675,676, Nick M. Waddell209, Nicola Waddell209,311, Claes Wadelius677, Lina Wadi6, Rabea Wagener111,112, Jeremiah A. Wala8,14,82, Jian Wang56, Jiayin Wang1,40,66, Linghua Wang12, Qi Wang465, Wenyi Wang21, Yumeng Wang21, Zhining Wang220, Paul M. Waring523, Hans-Jörg Warnatz483, Jonathan Warrell5,19, Anne Y. Warren352,678, Sebastian M. Waszak60, David C. Wedge49,294,679, Dieter Weichenhan345, Paul Weinberger680, John N. Weinstein38, Joachim Weischenfeldt60,83,84, Daniel J. Weisenberger166, Ian Welch681, Michael C. Wendl1,10,11, Johannes Werner47,85, Justin P. Whalley61,682, David A. Wheeler12,13, Hayley C. Whitaker117, Dennis Wigle683, Matthew D. Wilkerson518, Ashley Williams244, James S. Wilmott211, Gavin W. Wilson6,148, Julie M. Wilson148, Richard K. Wilson1,684, Boris Winterhoff685, Jeffrey A. Wintersinger17,127,384, Maciej Wiznerowicz686,687, Stephan Wolf688, Bernice H. Wong689, Tina Wong1,30, Winghing Wong690, Youngchoon Woo250, Scott Wood209,311, Bradly G. Wouters44, Adam J. Wright6, Derek W. Wright133,691, Mark H. Wright217, Chin-Lee Wu72, Dai-Ying Wu285, Guanming Wu692, Jianmin Wu170, Kui Wu56,396, Yang Wu179,180, Zhenggang Wu64, Liu Xi12, Tian Xia693, Qian Xiang76, Xiao Xiao66, Rui Xing497, Heng Xiong56,396, Qinying Xu209,311, Yanxun Xu694, Hong Xue64, Shinichi Yachida118,695, Sergei Yakneen60, Rui Yamaguchi375, Takafumi N. Yamaguchi6, Masakazu Yamamoto120, Shogo Yamamoto89, Hiroki Yamaue376, Fan Yang490, Huanming Yang56, Jean Y. Yang696, Liming Yang220, Lixing Yang697, Shanlin Yang306, Tsun-Po Yang270, Yang Yang369, Xiaotong Yao408,698, Marie-Laure Yaspo483, Lucy Yates49, Christina Yau156, Chen Ye56,396, Kai Ye40,41, Venkata D. Yellapantula20,86, Christopher J. Yoon249, Sung-Soo Yoon463, Fouad Yousif6, Jun Yu699, Kaixian Yu700, Willie Yu701, Yingyan Yu702, Ke Yuan223,510,703, Yuan Yuan21, Denis Yuen6, Takashi Yugawa617, Christina K. Yung76, Olga Zaikova704, Jorge Zamora49,104,105,106, Marc Zapatka397, Jean C. Zenklusen220, Thorsten Zenz67, Nikolajs Zeps705,706, Cheng-Zhong Zhang8,707, Fan Zhang381, Hailei Zhang8, Hongwei Zhang494, Hongxin Zhang121, Jiashan Zhang220, Jing Zhang5, Junjun Zhang76, Xiuqing Zhang56, Xuanping Zhang66,369, Yan Zhang5,708,709, Zemin Zhang381,710, Zhongming Zhao711, Liangtao Zheng381, Xiuqing Zheng381, Wanding Zhou615, Yong Zhou56, Bin Zhu240, Hongtu Zhu700,712, Jingchun Zhu24, Shida Zhu56,396, Lihua Zou713, Xueqing Zou49, Anna deFazio246,247,714, Nicholas van As221, Carolien H. M. van Deurzen715, Marc J. van de Vijver523, L. van’t Veer716 & Christian von Mering433,717, The Cancer Genome Atlas (TCGA) and International Cancer Genome Consortium (ICGC) curated consensus somatic mutation calls using whole exome sequencing (WES) and whole genome sequencing (WGS), respectively. Here, as part of the ICGC/TCGA Pan-Cancer Analysis of Whole Genomes (PCAWG) Consortium, which aggregated whole genome sequencing data from 2,658 cancers across 38 tumour types, we compare WES and WGS side-by-side from 746 TCGA samples, finding that ~80% of mutations overlap in covered exonic regions. We estimate that low variant allele fraction (VAF < 15%) and clonal heterogeneity contribute up to 68% of private WGS mutations and 71% of private WES mutations. We observe that ~30% of private WGS mutations trace to mutations identified by a single variant caller in WES consensus efforts. WGS captures both ~50% more variation in exonic regions and un-observed mutations in loci with variable GC-content. Together, our analysis highlights technological divergences between two reproducible somatic variant detection efforts.
- Published
- 2020
17. Adjuvant chemotherapy and postoperative radiotherapy in high-risk soft tissue sarcoma patients defined by biological risk factors—A Scandinavian Sarcoma Group study (SSG XX)
- Author
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Kirsten Sundby Hall, Maja Zemmler, Hans Hagberg, Dorota Goplen, Mikael Eriksson, Bodil Bjerkehagen, Jacob Engellau, Lina Hansson, Olga Zaikova, Øyvind S. Bruland, Marie Ahlström, Oskar Hagberg, Karin Papworth, Heidi Knobel, and Henrik C. F. Bauer
- Subjects
Adult ,Male ,0301 basic medicine ,Oncology ,Cancer Research ,medicine.medical_specialty ,medicine.medical_treatment ,Soft Tissue Neoplasms ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Risk Factors ,Internal medicine ,Antineoplastic Combined Chemotherapy Protocols ,Humans ,Medicine ,Neoplasm Invasiveness ,Doxorubicin ,Ifosfamide ,Prospective Studies ,Aged ,Dose-Response Relationship, Drug ,business.industry ,Incidence ,Soft tissue sarcoma ,Incidence (epidemiology) ,Cancer ,Sarcoma ,Middle Aged ,medicine.disease ,Survival Analysis ,Confidence interval ,Treatment Outcome ,030104 developmental biology ,Chemotherapy, Adjuvant ,030220 oncology & carcinogenesis ,Female ,Radiotherapy, Adjuvant ,Neoplasm Recurrence, Local ,business ,Adjuvant ,Follow-Up Studies ,medicine.drug - Abstract
Purpose To investigate the outcome following adjuvant doxorubicin and ifosfamide in a prospective non-randomised study based on a soft tissue sarcoma (STS) patient subgroup defined by specific morphological characteristics previously shown to be at a high-risk of metastatic relapse. The expected 5-year cumulative incidence of metastases in patients with this risk profile has previously been reported to be about 50% without adjuvant chemotherapy. Methods High-risk STS was defined as high-grade morphology (according to the Federation Nationale des Centres de Lutte Contre le Cancer [FNCLCC] grade II–III) and either vascular invasion or at least two of the following criteria: tumour size ≥8.0 cm, infiltrative growth and necrosis. Six cycles of doxorubicin (60 mg/m2) and ifosfamide (6 g/m2) were given. Postoperative accelerated radiotherapy was applied and scheduled between cycles 3 and 4. Results For the 150 eligible patients, median follow-up time for metastases-free survival was 3.9 years (range 0.2–8.7). Five-year metastases-free survival (MFS) was 70.4% (95% confidence interval [CI]: 63.1–78.4) with a local recurrence rate of 14.0% (95% CI: 7.8–20.2). For overall survival (OS), the median follow-up time was 4.4 years (range: 0.2–8.7). The five-year OS was 76.1% (95% CI: 68.8–84.2). Tumour size, deep location and reduced dose intensity ( Conclusions A benefit of adjuvant chemotherapy, compared to similar historical control groups, was demonstrated in STS patients with defined poor prognostic factors. Vascular invasion, tumour size, growth pattern and necrosis may identify patients in need of adjuvant chemotherapy.
- Published
- 2018
18. The Scandinavian Sarcoma Group Central Register: 6,000 patients after 25 years of monitoring of referral and treatment of extremity and trunk wall soft-tissue sarcoma
- Author
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Emelie Styring, Erkki Tukiainen, Olga Zaikova, Najme Wall, Kirsten Sundby Hall, Tuula Lehtinen, Anders Kalén, Nina L. Jebsen, Thor Alvegård, Mikael Skorpil, Mika Sampo, Bodil Bjerkehagen, Clement S. Trovik, Sigvard Eriksson, Geir Egil Eide, Ingela Johansson, Minna Laitinen, Mikael Eriksson, Halldór Jónsson, Helgi Sigurðsson, Elisabeth Johansson, Henrik C. F. Bauer, Fredrik Vult von Steyern, Department of Oncology, University of Helsinki, Clinicum, HUS Comprehensive Cancer Center, Department of Surgery, Plastiikkakirurgian yksikkö, and HUS Musculoskeletal and Plastic Surgery
- Subjects
Male ,Open biopsy ,Biopsy ,Soft Tissue Neoplasms ,0302 clinical medicine ,Epidemiology ,EPIDEMIOLOGY ,Orthopedics and Sports Medicine ,Registries ,Child ,Referral and Consultation ,Orthopedic surgery ,Aged, 80 and over ,030222 orthopedics ,education.field_of_study ,Tumor ,medicine.diagnostic_test ,Soft tissue sarcoma ,Torso ,Sarcoma ,General Medicine ,Middle Aged ,3. Good health ,030220 oncology & carcinogenesis ,Child, Preschool ,Female ,Adult ,medicine.medical_specialty ,Referral ,Adolescent ,3122 Cancers ,Population ,REGARDLESS ,Scandinavian and Nordic Countries ,03 medical and health sciences ,medicine ,Humans ,education ,Aged ,MALIGNANCY ,business.industry ,Kirurgi ,Infant, Newborn ,Infant ,Extremities ,3126 Surgery, anesthesiology, intensive care, radiology ,medicine.disease ,Surgery ,Neoplasm Grading ,Neoplasm Recurrence, Local ,business ,RD701-811 - Abstract
Purpose - We wanted to examine the potential of the Scandinavian Sarcoma Group (SSG) Central Register, and evaluate referral and treatment practice for soft-tissue sarcomas in the extremities and trunk wall (STS) in the Nordic countries. Background - Based on incidence rates from the literature, 8,150 (7,000-9,300) cases of STS of the extremity and trunk wall should have been diagnosed in Norway, Finland, Iceland, and Sweden from 1987 through 2011. The SSG Register has 6,027 cases registered from this period, with 5,837 having complete registration of key variables. 10 centers have been reporting to the Register. The 5 centers that consistently report treat approximately 90% of the cases in their respective regions. The remaining centers have reported all the patients who were treated during certain time periods, but not for the entire 25-year period. Results - 59% of patients were referred to a sarcoma center untouched, i.e. before any attempt at open biopsy. There was an improvement from 52% during the first 5 years to 70% during the last 5 years. 50% had wide or better margins at surgery. Wide margins are now achieved less often than 20 years ago, in parallel with an increase in the use of radiotherapy. For the centers that consistently report, 97% of surviving patients are followed for more than 4 years. Metastasis-free survival (MFS) increased from 67% to 73% during the 25-year period. Interpretation - The Register is considered to be representative of extremity and trunk wall sarcoma disease in the population of Scandinavia, treated at the reporting centers. There were no clinically significant differences in treatment results at these centers. Funding Agencies|National Advisory Unit on sarcomas in Norway; Swedish Cancer Society
- Published
- 2017
19. Chondrosarcoma in Norway 1990-2013; an epidemiological and prognostic observational study of a complete national cohort
- Author
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Øyvind S. Bruland, Trond Viset, Bodil Bjerkehagen, Hans Kristian Haugland, Tom Børge Johannesen, Joachim Thorkildsen, Ole Jacob Norum, Olga Zaikova, and Ingeborg Taksdal
- Subjects
musculoskeletal diseases ,Adult ,Male ,medicine.medical_specialty ,Pediatrics ,Adolescent ,MEDLINE ,Chondrosarcoma ,Bone Neoplasms ,030218 nuclear medicine & medical imaging ,National cohort ,03 medical and health sciences ,0302 clinical medicine ,Neoplasm Recurrence ,Epidemiology ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Child ,Aged ,Aged, 80 and over ,business.industry ,Norway ,Incidence (epidemiology) ,Incidence ,Infant ,Hematology ,General Medicine ,Middle Aged ,medicine.disease ,Prognosis ,Oncology ,030220 oncology & carcinogenesis ,Child, Preschool ,Observational study ,Female ,Neoplasm Recurrence, Local ,business - Abstract
Background: Knowledge of chondrosarcoma (CS) of bone to date is based on institutional reports and registry publications with limits in reporting, detail and quality of data. Method: We have performed a retrospective search of CS of bone in the National Cancer Registry in Norway from 1990-2013, cross checked against local tumor databases with further quality control and supplementation of all data from clinical files. The time period is defined by the routine use of axial imaging in clinical practice. 311 cases are included. We performed 108 pathological reviews and 223 radiological reviews. The manuscript is prepared according to the STROBE checklist for strengthening of observational studies. We perform uni-/multivariate cox analysis to define independent prognostic variables from the main cohort of central CS of bone. Results: The incidence of CS of bone in Norway is 2.85/million/yr. for both sexes overall, rising to 3.45/million/yr. in the last 5 year period. There is an increase in the most common central CS subtype, stronger for women than for men. Central CS has, in general 10-15% local recurrence rates, all evident by 5 years while metastasis rate increases with location and grade. Exceptions are extremity grade 1 CS which displayed no metastatic events and axial grade 3 disease with high rates (50%) of both local and metastatic relapse. Peripheral CS has limited metastatic potential (2%) but rates of local relapse (13%) continue to appear towards 10 years of follow up. Malignancy grade 3 independently predicts rate of metastasis and presence of soft tissue component predicts local recurrence, metastasis and survival. Conclusion: Rates of local recurrence, metastasis and disease specific survival follow clear patterns depending on subtype, location and grade allowing better tailoring of follow up regimes. Malignancy grade 3 and presence of a soft tissue component independently predict behaviour for central CS of bone. This is the authors accepted manuscrip of the article published in Acta Oncologica, https://doi.org/10.1080/0284186X.2018.1554260
- Published
- 2019
20. Dynamic prediction of overall survival for patients with high-grade extremity soft tissue sarcoma
- Author
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A.J. Rueten-Budde, V.M. van Praag, M.A.J. van de Sande, M. Fiocco, Lee M. Jeys, Minna K. Laitinen, Rob Pollock, Will Aston, Jos A. van der Hage, PD Sander Dijkstra, Peter C. Ferguson, Anthony M. Griffin, Julie J. Willeumier, Jay S. Wunder, Emelie Styring, Florian Posch, Olga Zaikova, Katja Maretty-Kongstad, Johnny Keller, Andreas Leithner, Maria A. Smolle, and Rick L. Haas
- Subjects
Male ,Surgical margin ,medicine.medical_specialty ,Dynamic prediction ,Survival ,03 medical and health sciences ,0302 clinical medicine ,Margin (machine learning) ,Predictive Value of Tests ,Risk Factors ,Landmark analysis ,Covariate ,Overall survival ,Medicine ,Humans ,030212 general & internal medicine ,Neoplasm Metastasis ,Retrospective Studies ,Margin ,Soft tissue sarcoma ,Prognostic factor ,business.industry ,Disease progression ,Extremities ,Sarcoma ,Middle Aged ,medicine.disease ,Survival Rate ,Oncology ,030220 oncology & carcinogenesis ,Disease Progression ,Surgery ,Female ,Radiology ,Neoplasm Grading ,Neoplasm Recurrence, Local ,business ,Follow-Up Studies - Abstract
Purpose There is increasing interest in personalized prediction of disease progression for soft tissue sarcoma patients. Currently, available prediction models are limited to predictions from time of surgery or diagnosis. This study updates predictions of overall survival at different times during follow-up by using the concept of dynamic prediction. Patients and methods Information from 2232 patients with high-grade extremity soft tissue sarcoma, who underwent surgery at 14 specialized sarcoma centers, was used to develop a dynamic prediction model. The model provides updated 5-year survival probabilities from different prediction time points during follow-up. Baseline covariates as well as time-dependent covariates, such as status of local recurrence and distant metastases, were included in the model. In addition, the effect of covariates over time was investigated and modelled accordingly in the prediction model. Results Surgical margin and tumor histology show a significant time-varying effect on overall survival. The effect of margin is strongest shortly after surgery and diminishes slightly over time. Development of local recurrence and distant metastases during follow-up have a strong effect on overall survival and updated predictions must account for their occurrence. Conclusion The presence of time-varying effects, as well as the effect of local recurrence and distant metastases on survival, suggest the importance of updating predictions during follow-up. This newly developed dynamic prediction model which updates survival probabilities over time can be used to make better individualized treatment decisions based on a dynamic assessment of a patient's prognosis.
- Published
- 2018
21. Improved Prognosis for Patients with Ewing Sarcoma in the Sacrum Compared with the Innominate Bones
- Author
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Nina L. Jebsen, Henrik C. F. Bauer, Olga Zaikova, Panagiotis Tsagozis, Asle C. Hesla, and Otte Brosjö
- Subjects
Male ,Sacrum ,medicine.medical_specialty ,medicine.medical_treatment ,Bone Neoplasms ,Sarcoma, Ewing ,Bone Sarcoma ,Disease-Free Survival ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Humans ,Medicine ,Orthopedics and Sports Medicine ,Prospective Studies ,Young adult ,Pelvic Bones ,Prospective cohort study ,Survival rate ,Pelvis ,030222 orthopedics ,business.industry ,General Medicine ,Prognosis ,medicine.disease ,Surgery ,Radiation therapy ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Female ,Sarcoma ,Neoplasm Recurrence, Local ,business - Abstract
Background Treatment of Ewing sarcoma of the pelvic bones remains one of the most difficult tasks in the treatment of bone sarcomas. Whether surgery or radiation therapy is the best local treatment is still a matter of debate. The aim of the present study was to compare sacral and nonsacral sites with regard to the treatment and outcome of pelvic Ewing sarcomas. Methods Patients with Ewing sarcoma of the osseous pelvis diagnosed between 1986 and 2011 were identified through the Scandinavian Sarcoma Group registry. Data regarding tumor size, local treatment (surgery or radiation therapy), metastatic disease, surgical margins, local recurrence, and overall survival were analyzed. Results Of the 117 patients examined, eighty-eight had tumors in the innominate bones and twenty-nine, in the sacrum. Radiation therapy was the sole local treatment for 40% of the innominate bone tumors in contrast to 79% of the sacral tumors. The five-year disease-free survival rate in the latter group (66%) was greater than that in the group with tumors in the innominate bones (40%) (p = 0.02 adjusted for size). Conclusions Disease-free survival among patients with Ewing sarcoma was improved when the tumor was localized in the sacrum compared with the innominate bones, where these tumors are generally larger. Local radiation therapy alone appears to result in good local tumor control and may be the treatment of choice for sacral tumors.
- Published
- 2016
22. Bone sarcomas: ESMO-PaedCan-EURACAN Clinical Practice Guidelines for diagnosis, treatment and follow-up
- Author
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Laurence Brugières, K. Sundby Hall, Bruce Morland, Ioannis Boukovinas, Rolf D. Issels, Sebastian Bauer, D.A. Krakorova, Angela Buonadonna, E. de Álava, Nathalie Gaspar, P. Picci, Palma Dileo, Hans Gelderblom, Bernadette Brennan, Javier Martin Broto, Maria Abbondanza Pantaleo, Paul C Jutte, Ian Judson, Suzanne E. J. Kaal, B. Hassan, Ruth Ladenstein, Alexander Fedenko, Patrick Schöffski, Jean-Yves Blay, A. Le Cesne, Peter Hohenberger, Virginia Ferraresi, Sandra J. Strauss, Michael Montemurro, Robin L. Jones, Peter Reichardt, Stefan S. Bielack, Mikael Eriksson, Stefan Sleijfer, Akmal Safwat, Heikki Joensuu, Rick L. Haas, Bernd Kasper, Hannu T. Aro, Judith V.M.G. Bovée, Jeremy Whelan, A.M. Frezza, Antonio López Pousa, Stefanie Hecker-Nolting, Thomas Brodowicz, R. Biagini, Silvia Stacchiotti, S. Ferrari, Sylvie Bonvalot, S. Piperno-Neumann, Leo Kager, F. van Coevorden, Olga Zaikova, R. Piana, Catharina Dhooge, Piotr Rutkowski, M.H. Robinson, Ofer Merimsky, Katerina Kopeckova, X.G. del Muro, W.T.A. van der Graaf, Paolo G. Casali, N. Abecassis, Eva Wardelmann, Silvia Gasperoni, Giovanni Grignani, A. P. Dei Tos, Andrea Ferrari, Franca Fagioli, Alessandro Gronchi, Thierry Gil, Iwona Lugowska, M. Unk, Man, Biomaterials and Microbes (MBM), Public Health Research (PHR), Basic and Translational Research and Imaging Methodology Development in Groningen (BRIDGE), Medical Oncology, Casali, P.G., Bielack, S., Abecassis, N., Aro, H.T., Bauer, S., Biagini, R., Bonvalot, S., Boukovinas, I., Bovee, J.V.M.G., Brennan, B., Brodowicz, T., Broto, J.M., Brugières, L., Buonadonna, A., De Álava, E., Dei Tos, A.P., Del Muro, X.G., Dileo, P., Dhooge, C., Eriksson, M., Fagioli, F., Fedenko, A., Ferraresi, V., Ferrari, A., Ferrari, S., Frezza, A.M., Gaspar, N., Gasperoni, S., Gelderblom, H., Gil, T., Grignani, G., Gronchi, A., Haas, R.L., Hassan, B., Hecker-Nolting, S., Hohenberger, P., Issels, R., Joensuu, H., Jones, R.L., Judson, I., Jutte, P., Kaal, S., Kager, L., Kasper, B., Kopeckova, K., Krákorová, D.A., Ladenstein, R., Le Cesne, A., Lugowska, I., Merimsky, O., Montemurro, M., Morland, B., Pantaleo, M.A., Piana, R., Picci, P., Piperno-Neumann, S., Pousa, A.L., Reichardt, P., Robinson, M.H., Rutkowski, P., Safwat, A.A., Schöffski, P., Sleijfer, S., Stacchiotti, S., Strauss, S.J., Sundby Hall, K., Unk, M., Van Coevorden, F., Van Der Graaf, W.T.A., Whelan, J., Wardelmann, E., Zaikova, O., and Blay, J.Y.
- Subjects
0301 basic medicine ,Oncology ,Biopsy ,Medizin ,Aftercare ,CHILDRENS-ONCOLOGY-GROUP ,Survivorship ,Medical Oncology ,0302 clinical medicine ,HIGH-DOSE CHEMOTHERAPY ,Positron Emission Tomography Computed Tomography ,Antineoplastic Combined Chemotherapy Protocols ,GIANT-CELL TUMOR ,Orthopedic Procedures ,PRIMITIVE NEUROECTODERMAL TUMOR ,Child ,Societies, Medical ,Osteosarcoma ,SOFT-TISSUE TUMORS ,Incidence (epidemiology) ,Incidence ,Age Factors ,Hematology ,RANDOMIZED CONTROLLED-TRIAL ,Magnetic Resonance Imaging ,Neoadjuvant Therapy ,Europe ,Self-Help Groups ,Treatment Outcome ,030220 oncology & carcinogenesis ,Sarcoma ,HIGH-GRADE OSTEOSARCOMA ,Rare cancers Radboud Institute for Health Sciences [Radboudumc 9] ,Adult ,medicine.medical_specialty ,education ,Bone Neoplasms ,Bone Sarcoma ,Bone and Bones ,03 medical and health sciences ,POSITRON-EMISSION-TOMOGRAPHY ,Internal medicine ,medicine ,Humans ,Radionuclide Imaging ,STUDY-GROUP PROTOCOLS ,Neoplasm Staging ,ta3126 ,NONMETASTATIC EWINGS-SARCOMA ,business.industry ,Cancer ,medicine.disease ,Long-Term Care ,Cancer registry ,030104 developmental biology ,Primitive neuroectodermal tumor ,Radiotherapy, Adjuvant ,Chondrosarcoma ,Patient Participation ,business - Abstract
Primary bone tumours are rare, accounting for < 0.2% of malignant neoplasms registered in the EUROCARE (European Cancer Registry based study on survival and care of cancer patients) database. Different bone tumour subtypes have distinct patterns of incidence, and each has no more than 0.3 incident cases per 100 000 per year. Osteosarcoma (OS) and Ewing sarcoma (ES) have a relatively high incidence in the second decade of life, whereas chondrosarcoma (CS) is more common in older age.
- Published
- 2018
23. Validity and completeness of the Scandinavian Sarcoma Group Central Register by comparison with a nationwide cohort of patients with osteosarcoma in Norway
- Author
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Olga, Zaikova and Kjetil, Berner
- Subjects
Osteosarcoma ,Norway ,Humans ,Bone Neoplasms ,Sarcoma ,Soft Tissue Neoplasms - Published
- 2018
24. Validity and completeness of the Scandinavian Sarcoma Group Central Register by comparison with a nationwide cohort of patients with osteosarcoma in Norway
- Author
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Kjetil, Berner, Olga, Zaikova, Tom Børge, Johannesen, Kirsten Sundby, Hall, and Øyvind S, Bruland
- Subjects
Adult ,Male ,Sweden ,Osteosarcoma ,Young Adult ,Adolescent ,Norway ,Humans ,Reproducibility of Results ,Bone Neoplasms ,Female ,Registries - Published
- 2018
25. Referral patterns, treatment and outcome of high-grade malignant bone sarcoma in Scandinavia-SSG Central Register 25 years' experience
- Author
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Henrik C. F. Bauer, Peter Bergh, Kirsten Sundby Hall, Mikael Eriksson, Emelie Styring, Olga Zaikova, Harald Weedon-Fekjær, Clement S. Trovik, Mikael Skorpil, and Bodil Bjerkehagen
- Subjects
medicine.medical_specialty ,Referral ,business.industry ,Treatment outcome ,General Medicine ,Bone Sarcoma ,medicine.disease ,Surgery ,Oncology ,Internal medicine ,medicine ,Osteosarcoma ,In patient ,Sarcoma ,Chondrosarcoma ,Young adult ,business - Abstract
The objectives of this study were to present changes in referral patterns, treatment and survival in patients with high-grade malignant bone sarcoma in Sweden and Norway based on data in the Scandinavian Sarcoma Group (SSG) Central Register.
- Published
- 2015
26. Prognostic factors and follow-up strategy for superficial soft-tissue sarcomas: Analysis of 622 surgically treated patients from the scandinavian sarcoma group register
- Author
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Otte Brosjö, Panagiotis Tsagozis, Clement S. Trovik, Emelie Styring, Henrik C. F. Bauer, and Olga Zaikova
- Subjects
medicine.medical_specialty ,Oncology ,Register (music) ,business.industry ,medicine ,Soft tissue ,Surgery ,General Medicine ,Sarcoma ,medicine.disease ,business - Abstract
Our study aimed to describe the clinical outcome of patients with superficial soft-tissue sarcomas (SSTS), define prognostic factors and provide evidence for a rational surveillance scheme.
- Published
- 2015
27. Recurrent mutation of IGF signalling genes and distinct patterns of genomic rearrangement in osteosarcoma
- Author
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Adam Shlien, Ola Myklebost, Kerstin Haase, Michael R. Stratton, Ultan McDermott, Mark Maddison, Inigo Martincorena, Hongtao Ye, William Mifsud, Sam Behjati, Helen Davies, Bodil Bjerkehagen, Sancha Martin, Adrienne M. Flanagan, Ludmil B. Alexandrov, Mathias Lidgren, Matthew D. Young, Calli Latimer, Olga Zaikova, Nischalan Pillay, David C. Wedge, Grace Collord, Peter J. Campbell, P. Andrew Futreal, Daniel Baumhoer, M Fernanda Amary, Adam Butler, Jon W. Teague, Peter Van Loo, Sarah J. Farndon, Roberto Tirabosco, Patrick S. Tarpey, and Susanna L. Cooke
- Subjects
Male ,0301 basic medicine ,General Physics and Astronomy ,medicine.disease_cause ,Receptor, IGF Type 1 ,0302 clinical medicine ,Ecology,Evolution & Ethology ,Insulin-Like Growth Factor I ,Child ,In Situ Hybridization, Fluorescence ,Gene Rearrangement ,Genetics ,Human Biology & Physiology ,Osteosarcoma ,Mutation ,Multidisciplinary ,Chromothripsis ,Manchester Cancer Research Centre ,medicine.diagnostic_test ,Bone cancer ,Middle Aged ,Child, Preschool ,030220 oncology & carcinogenesis ,Female ,Sarcoma ,Genetics & Genomics ,Signal Transduction ,musculoskeletal diseases ,Adult ,Adolescent ,Science ,Biology ,General Biochemistry, Genetics and Molecular Biology ,Young Adult ,03 medical and health sciences ,medicine ,Humans ,neoplasms ,Computational & Systems Biology ,Aged ,Insulin-like growth factor 1 receptor ,ResearchInstitutes_Networks_Beacons/mcrc ,General Chemistry ,Gene rearrangement ,Tumour Biology ,medicine.disease ,030104 developmental biology ,Fluorescence in situ hybridization - Abstract
Osteosarcoma is a primary malignancy of bone that affects children and adults. Here, we present the largest sequencing study of osteosarcoma to date, comprising 112 childhood and adult tumours encompassing all major histological subtypes. A key finding of our study is the identification of mutations in insulin-like growth factor (IGF) signalling genes in 8/112 (7%) of cases. We validate this observation using fluorescence in situ hybridization (FISH) in an additional 87 osteosarcomas, with IGF1 receptor (IGF1R) amplification observed in 14% of tumours. These findings may inform patient selection in future trials of IGF1R inhibitors in osteosarcoma. Analysing patterns of mutation, we identify distinct rearrangement profiles including a process characterized by chromothripsis and amplification. This process operates recurrently at discrete genomic regions and generates driver mutations. It may represent an age-independent mutational mechanism that contributes to the development of osteosarcoma in children and adults alike.
- Published
- 2017
28. Denosumab in patients with giant-cell tumor of bone in Norway: results from a nationwide cohort
- Author
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Olga Zaikova, Kirsten Sundby Hall, Odd R. Monge, Clement S. Trovik, Ayca Løndalen, Kjetil Boye, Heidi Knobel, and Nina L. Jebsen
- Subjects
Adult ,Male ,medicine.medical_specialty ,Adolescent ,Databases, Factual ,medicine.medical_treatment ,Injections, Subcutaneous ,Bone Neoplasms ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Young adult ,Retrospective Studies ,Giant Cell Tumor of Bone ,030222 orthopedics ,Bone Density Conservation Agents ,business.industry ,Norway ,Retrospective cohort study ,Hematology ,General Medicine ,Middle Aged ,medicine.disease ,Primary tumor ,Surgery ,Denosumab ,Treatment Outcome ,Oncology ,030220 oncology & carcinogenesis ,Cohort ,Female ,Sarcoma ,business ,Adjuvant ,medicine.drug ,Giant-cell tumor of bone - Abstract
Denosumab is a relatively new treatment option for patients with giant-cell tumor of bone (GCTB). The purpose of this study was to report the results for patients treated in Norway.Patients treated with denosumab for GCTB were identified from the clinical databases at the Norwegian sarcoma reference centers. Data were retrieved from the clinical databases and supplemented by retrospective review of patient records. Denosumab was given as a subcutaneous injection every 4 weeks with loading doses on day 8 and 15 in cycle 1.Eighteen patients treated with denosumab for GCTB were identified. Denosumab was given for recurrent disease in seven cases and as first-line treatment in 11 patients, of which 6 received therapy as part of a neoadjuvant/adjuvant strategy and 5 for surgically unsalvageable primary tumor. Ten of 12 patients with unresectable disease are still on denosumab without progression with median treatment duration of 41 months (range 18-60). Two patients discontinued treatment due to osteonecrosis of the jaw and reduced compliance, respectively. In the adjuvant group, four patients experienced disease recurrence after stopping denosumab. In three of six patients, the extent of surgery was reduced due to neoadjuvant therapy. Seventeen of 18 patients underwent response evaluation with 18F-FDG PET/CT at median 4.7 weeks from starting denosumab. Median baseline SUVIn a nationwide GCTB patient cohort, denosumab was an effective agent and durable responses were observed. Our results do not support the use of adjuvant therapy in routine clinical practice. 18F-FDG PET/CT could be a valuable tool for early response evaluation.
- Published
- 2017
29. Prognostic role of en-bloc resection and late onset of bone metastasis in patients with bone-seeking carcinomas of the kidney, breast, lung, and prostate: SSG study on 672 operated skeletal metastases
- Author
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Anders Kalén, Peter Bergh, Johnny Keller, Olga Zaikova, Clement S. Trovik, Minna Laitinen, Rikard Wedin, Maire Ratasvuori, and Bjarne Hauge Hansen
- Subjects
Oncology ,medicine.medical_specialty ,Bone disease ,business.industry ,medicine.medical_treatment ,Bone metastasis ,Cancer ,General Medicine ,medicine.disease ,Metastasis ,Radiation therapy ,Renal cell carcinoma ,Internal medicine ,medicine ,Surgery ,Sarcoma ,business ,Kidney cancer - Abstract
Background and Objectives In metastatic disease, decisions regarding potential surgery require reliable data about the patient's survival. In this study, we evaluated different prognostic factors and their impact in four common primary tumors causing bone metastases. Methods Data were acquired from the Scandinavian Sarcoma Group (SSG) metastasis registry. The patients underwent surgery between July 1999 and July 2009. This study included breast, prostate, lung, and kidney cancer cases, with a total of 672 operated non-spinal metastases. Differences in prognostic factors were evaluated using the Kaplan-Meier method with long-rank test. Cox regression multivariate analysis was performed to identify statistically independent prognostic factors. Results Significant factors affecting survival were the presence of organ metastases, overall heath status, and disease load. In kidney cancer, en bloc resection of solitary metastases was associated with a significant fourfold longer survival compared to intralesional surgery. Preoperative radiotherapy was associated with higher complication and reoperation rates. Conclusions This data summary is important tool for clinicians to evaluate survival and choose treatment options for patients suffering from metastatic bone disease. J. Surg. Oncol. 2014; 110:360–365. © 2014 Wiley Periodicals, Inc.
- Published
- 2014
30. Validity and completeness of the Scandinavian Sarcoma Group Central Register by comparison with a nationwide cohort of patients with osteosarcoma in Norway
- Author
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Kirsten Sundby Hall, Tom Børge Johannesen, Kjetil Berner, Olga Zaikova, and Øyvind S. Bruland
- Subjects
0301 basic medicine ,Pediatrics ,medicine.medical_specialty ,business.industry ,General Medicine ,medicine.disease ,03 medical and health sciences ,030104 developmental biology ,0302 clinical medicine ,Oncology ,030220 oncology & carcinogenesis ,Epidemiology ,Cohort ,medicine ,Osteosarcoma ,Surgery ,Sarcoma ,business ,Completeness (statistics) - Published
- 2018
31. Unscrambling the genomic chaos of osteosarcoma reveals extensive transcript fusion, recurrent rearrangements and frequent novel TP53 aberrations
- Author
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Gard O. S. Thomassen, Olga Zaikova, Leonardo A. Meza-Zepeda, Jinchang Sun, Tale Barøy, Birte Möhlendick, Ragnhild A. Lothe, Peter J. Campbell, Torfinn Nome, Adrienne M. Flanagan, Lynnette Fernandez-Cuesta, Rolf Inge Skotheim, Terje Cruickshank Ahlquist, Ola Myklebost, Anne Mari Håkelien, Harald Rieder, Karoly Szuhai, Susanne Lorenz, Jan Christian Bryne, Daniel Vodak, and Patrick S. Tarpey
- Subjects
0301 basic medicine ,Somatic cell ,DNA repair ,Biology ,Translocation, Genetic ,Fusion gene ,03 medical and health sciences ,CDKN2A ,Chromosome instability ,osteosarcomas ,medicine ,Humans ,Genes, Tumor Suppressor ,neoplasms ,Genetics ,Osteosarcoma ,trans-splicing ,Point mutation ,gene fusion ,bone cancer ,Genomics ,medicine.disease ,Genes, p53 ,3. Good health ,030104 developmental biology ,Oncology ,Sarcoma ,Research Paper - Abstract
In contrast to many other sarcoma subtypes, the chaotic karyotypes of osteosarcoma have precluded the identification of pathognomonic translocations. We here report hundreds of genomic rearrangements in osteosarcoma cell lines, showing clear characteristics of microhomology-mediated break-induced replication (MMBIR) and end-joining repair (MMEJ) mechanisms. However, at RNA level, the majority of the fused transcripts did not correspond to genomic rearrangements, suggesting the involvement of trans-splicing, which was further supported by typical trans-splicing characteristics. By combining genomic and transcriptomic analysis, certain recurrent rearrangements were identified and further validated in patient biopsies, including a PMP22-ELOVL5 gene fusion, genomic structural variations affecting RB1, MTAP/CDKN2A and MDM2, and, most frequently, rearrangements involving TP53. Most cell lines (7/11) and a large fraction of tumor samples (10/25) showed TP53 rearrangements, in addition to somatic point mutations (6 patient samples, 1 cell line) and MDM2 amplifications (2 patient samples, 2 cell lines). The resulting inactivation of p53 was demonstrated by a deficiency of the radiation-induced DNA damage response. Thus, TP53 rearrangements are the major mechanism of p53 inactivation in osteosarcoma. Together with active MMBIR and MMEJ, this inactivation probably contributes to the exceptional chromosomal instability in these tumors. Although rampant rearrangements appear to be a phenotype of osteosarcomas, we demonstrate that among the huge number of probable passenger rearrangements, specific recurrent, possibly oncogenic, events are present. For the first time the genomic chaos of osteosarcoma is characterized so thoroughly and delivered new insights in mechanisms involved in osteosarcoma development and may contribute to new diagnostic and therapeutic strategies.
- Published
- 2016
32. Giant Cell Tumor: A Rare Condition in the Immature Skeleton—A Retrospective Study of Symptoms, Treatment, and Outcome in 16 Children
- Author
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Ingvild Lobmaier, Thale M. Asp Strøm, Anette Torød Skeie, and Olga Zaikova
- Subjects
030222 orthopedics ,medicine.medical_specialty ,Article Subject ,business.industry ,Medical record ,Epiphyseal Cartilages ,Intralesional curettage ,Retrospective cohort study ,Disease ,lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,lcsh:RC254-282 ,030218 nuclear medicine & medical imaging ,Surgery ,Lesion ,03 medical and health sciences ,0302 clinical medicine ,Oncology ,Giant cell ,medicine ,Radiology, Nuclear Medicine and imaging ,medicine.symptom ,business ,Immature skeleton ,Research Article - Abstract
Background. Pediatric giant cell tumor (GCT) of bone is rare and the course of the disease in the immature skeleton is sparsely described. We performed a retrospective study addressing symptoms, treatment, and outcome in children with GCT.Methods. Review of medical records and images of patients with GCT. Patients were detected from our hospital prospective database and those with open epiphyseal cartilages were included.Results. 16 children (75% girls) from 6 to 15 years old were identified. Eight lesions (50%) were in long bones and 4 (25%) in flat bones. One lesion appeared to be purely epiphyseal. All patients had pain as the initial symptom. Local recurrence developed in 2 patients. 14 of 16 patients returned to normal activity with no sequelae. One patient developed anisomelia after surgery.Conclusions. The biological tumor behavior in children does not seem to differ from what is reported in adults. Lesions in flat bones are very unusual, but our data alone do not provide enough evidence to conclude that this is more common in the immature skeleton. Literature review showed only one previous case report describing a purely epiphyseal GCT. Intralesional curettage is appropriate treatment and gives good functional results with acceptable recurrence rates.
- Published
- 2016
33. Pathological subtrochanteric fractures in 194 patients: A comparison of outcome after surgical treatment of pathological and non-pathological fractures
- Author
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Johnny Keller, Bjarne Hauge Hansen, Rüdiger J Weiss, Rikard Wedin, Clement S. Trovik, Minna Laitinen, Wilhelmina Ekström, and Olga Zaikova
- Subjects
medicine.medical_specialty ,Proportional hazards model ,business.industry ,Hazard ratio ,General Medicine ,Perioperative ,Surgery ,law.invention ,Intramedullary rod ,Oncology ,law ,Fracture fixation ,medicine ,Femur ,business ,Pathological ,Survival rate - Abstract
Background The surgical treatment of pathological subtrochanteric fractures has been associated with technical difficulties and frequent failures. We analyzed survival, risk factors for death, and outcome after surgical treatment. Methods The study group consisted of 194 patients with pathological subtrochanteric femur fractures operated during 1999–2009. Cox multiple-regression analysis was performed to study risk factors and results were expressed as hazard ratios (HR). We included a control group with non-pathological subtrochanteric fractures (n = 87) for comparison. Results The median age at surgery was 68 (29–96) years in the study group and 82 (66–101) in the controls. The 1-year survival rate after surgery was 33% (95% CI: 26–40) in the study group and 85% (79–93) in the controls. In the study group, the risk of death after surgery was increased for patients ≥65 years of age (HR 1.5, 95% CI: 1.1–2.1), with a moderate (HR 2.2, 1.5–3.4) and poor (HR 2.9, 1.6–5.2) Karnofsky score, with visceral metastases (HR 1.6, 1.1–2.3), and perioperative hemoglobin levels
- Published
- 2012
34. Complications and survival after surgical treatment of 214 metastatic lesions of the humerus
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Bjarne Hauge Hansen, Fredrik Vult von Steyern, Peter Bergh, Clement S. Trovik, Rüdiger J Weiss, Anders Kalén, Minna Laitinen, Anders Walloe, Olga Zaikova, Gunnar Schwarz-Lausten, Johnny Keller, and Rikard Wedin
- Subjects
Male ,Kaplan-Meier Estimate ,Bone Nails ,law.invention ,Cohort Studies ,Intramedullary rod ,Fracture Fixation, Internal ,Postoperative Complications ,law ,Fracture fixation ,Orthopedics and Sports Medicine ,Registries ,Aged, 80 and over ,Hazard ratio ,Prostheses and Implants ,General Medicine ,Middle Aged ,musculoskeletal system ,Prognosis ,medicine.anatomical_structure ,Female ,Bone Plates ,musculoskeletal diseases ,Adult ,Reoperation ,Humeral Fractures ,medicine.medical_specialty ,animal structures ,Pathologic fracture ,Bone Neoplasms ,Risk Assessment ,Disease-Free Survival ,stomatognathic system ,Bone plate ,Confidence Intervals ,medicine ,Humans ,Neoplasm Invasiveness ,Humerus ,Aged ,Neoplasm Staging ,Proportional Hazards Models ,Retrospective Studies ,Sweden ,Analysis of Variance ,Osteosynthesis ,business.industry ,medicine.disease ,Survival Analysis ,Surgery ,Radiography ,Diaphysis ,Fractures, Spontaneous ,Multivariate Analysis ,Neoplasm Recurrence, Local ,business - Abstract
Background: The humerus is the second most common long-bone site of metastatic bone disease. We report complications, risk factors for failure, and survival of a large series of patients operated on for skeletal metastases of the humerus. Materials and methods: This study was based on 208 patients treated surgically for 214 metastatic lesions of the humerus. Reconstructions were achieved by intramedullary nails in 148, endoprostheses in 35, plate fixation in 21, and by other methods in 10. Results: The median age at surgery was 67 years (range, 29-87 years). Breast cancer was the primary tumor in 31%. The overall failure rate of the surgical reconstructions was 9%. The reoperation rate was 7% in the proximal humerus, 8% in the diaphysis, and 33% in the distal part of the bone. Among 36 operations involving an endoprosthesis, 2 were failures (6%) compared with 18 of 178 osteosynthetic devices (10%). In the osteosynthesis group, intramedullary nails failed in 7% and plate fixation failed in 22%. Multivariate Cox regression analysis showed that prostate cancer was associated with an increased risk of failure after surgery (hazard ratio, 7; P < 0.033). The cumulative survival after surgery was 40% (95% confidence interval [CI] 34-47) at 1 year, 21% (95% CI, 15-26) at 2 years, and 16% (95% CI, 12-19) at 3 years. Conclusions: Our method of choice is the cemented hemiprosthesis for pathologic proximal humeral fractures and interlocked intramedullary nail for lesions in the diaphysis. Pathologic fractures in the distal humerus are uncommon and associated with a very high reoperation rate. Level of evidence: Level IV, Case Series, Treatment Study. (C) 2012 Journal of Shoulder and Elbow Surgery Board of Trustees. (Less)
- Published
- 2012
35. Radiotherapy or surgery for spine metastases?
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Olga Zaikova, Øyvind S. Bruland, Sigmund Skjeldal, B. Sandstad, Sophie D. Fosså, and Karl Erik Giercksky
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medicine.medical_specialty ,education.field_of_study ,business.industry ,medicine.medical_treatment ,Medical record ,Population ,Retrospective cohort study ,General Medicine ,medicine.disease ,Surgery ,Radiation therapy ,Spinal cord compression ,Cohort ,medicine ,Orthopedics and Sports Medicine ,business ,education ,Survival analysis ,Cohort study - Abstract
Background and purpose Radiotherapy (RT) remains the cornerstone of management of spine metastases (SM), even though surgery is a well-established treatment for selected patients. We compared the use of RT and surgery in a population-based cohort of patients with SM, investigated pre-treatment factors that were associated with use of these treatment modalities, and examined survival. Patients and methods 903 patients in the south-eastern Norway who were admitted for RT or surgery for SM for the first time during an 18-month period in 2007–2008 were identified and their medical records were reviewed. Results The primary treatment was surgery in 58 patients and RT in 845 patients, including 704 multiple-fraction (MF) and 141 single-fraction (SF) RT schedules. 11 of 607 patients without motor impairment (2%) and 47 of 274 patients with motor impairment (17%) underwent primary operations. 11 of 58 operated patients and 244 of 845 irradiated patients died within 2 months after the start of treatment. 26% of th...
- Published
- 2011
36. Validity and completeness of the Scandinavian Sarcoma Group Central Register by comparison with a nationwide cohort of patients with osteosarcoma in Norway
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Tom Børge Johannesen, Kjetil Berner, Kirsten Sundby Hall, Øyvind S. Bruland, and Olga Zaikova
- Subjects
medicine.medical_specialty ,Letter to the editor ,business.industry ,General surgery ,General Medicine ,medicine.disease ,03 medical and health sciences ,0302 clinical medicine ,Oncology ,030220 oncology & carcinogenesis ,Cohort ,medicine ,Osteosarcoma ,Surgery ,030212 general & internal medicine ,Sarcoma ,business ,Completeness (statistics) - Published
- 2018
37. Abstract 1197: Soft tissue sarcoma clinical presentation, treatment, and survival in adolescents and young adults compared to older adults: A report from the Scandinavian Sarcoma Group
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Philip J. Lupo, Beatrice Melin, Emelie Styring, Olga Zaikova, Karin Papworth, and Vidal M. Arroyo
- Subjects
Cancer Research ,Pediatrics ,medicine.medical_specialty ,Oncology ,business.industry ,Soft tissue sarcoma ,Medicine ,Sarcoma ,Presentation (obstetrics) ,Young adult ,business ,medicine.disease - Abstract
Background: Five-year survival rates for those diagnosed with soft tissue sarcoma (STS) have improved significantly among children and older adults (OAs), but these same trends have not been observed for adolescents and young adults (AYAs). While these disparities could be due to differences in biology or treatment, few studies have evaluated STS occurrence and outcome in AYAs. Therefore, the purpose of this study was to evaluate differences between adolescents and young adults (AYAs) and older adults (OAs) diagnosed with STS by stratifying analysis by: (1) clinical presentation; (2) treatment; and (3) survival. Methods: Data were obtained from the Scandinavian Sarcoma Group (SSG) Central Register, which includes information on 5,747 patients from Sweden and Norway, diagnosed with a STS during 1986-2011. Variables included: age at diagnosis, metastasis at diagnosis, tumor size, histology, adjuvant treatment, date of death or last follow-up. AYAs were defined as those diagnosed ages 15-39 years. Categorical variables were analyzed using chi-square tests, and continuous variables were analyzed using t-tests. Overall survival (OS) and recurrence-free survival (RFS) were compared between AYAs and OAs using Kaplan-Meier estimates and log-rank tests. All analyses were conducted overall and by common STS subtypes. Results: Overall and by STS subtype, there were significant differences between AYAs and OAs on presentation, treatment, and survival. The distribution of STS subtypes was different between OAs and AYAs. For example, OAs were more likely to be diagnosed with leiomyosarcoma compared to AYAs (18% vs. 10%, p5 cm, 67% vs. 52%, p Conclusions: There were several differences between AYAs and OAs on STS presentation, treatment, and outcome. AYAs not only had differences in terms of STS subtypes but also tumor size and malignancy grade within subtypes. Additional work is needed to characterize the biology underlying these differences, which will inform future treatment strategies for both AYAs and OAs with STS. Citation Format: Vidal M. Arroyo, Philip J. Lupo, Beatrice Melin, Emelie Styring, Olga Zaikova, Karin Papworth. Soft tissue sarcoma clinical presentation, treatment, and survival in adolescents and young adults compared to older adults: A report from the Scandinavian Sarcoma Group [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2018; 2018 Apr 14-18; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2018;78(13 Suppl):Abstract nr 1197.
- Published
- 2018
38. Abstract A08: Disease monitoring by liquid biopsies in sarcomas
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Nina L. Jebsen, Synnøve Granlien, Olga Zaikova, Bodil Bjerkehagen, Eivind Hovig, Susanne Lorenz, Eva W. Stratford, Leonardo A. Meza-Zepeda, Ola Myklebost, Seyed H. Moosavi, Sigve Nakken, Brian Kudlow, Kirsten Sundby Hall, Else Munthe, Stine Næss, Lars Birger Aasheim, Skyler Mishkin, Heidi M. Namløs, and Kjetil Boye
- Subjects
Oncology ,Cancer Research ,medicine.medical_specialty ,GiST ,business.industry ,Cancer ,PDGFRA ,medicine.disease ,Primary tumor ,Minimal residual disease ,Internal medicine ,medicine ,Sarcoma ,Liquid biopsy ,business ,Exome - Abstract
The CircSarc study aims to provide new insights into the clinical utility of liquid biopsies in sarcomas. Today, mutational profiles of solid tumors are obtained from tissue biopsies or surgical specimens. Recent advances in technology now allows to use blood plasma as a “liquid biopsy,” examining circulating tumor DNA (ctDNA) shed by the tumor cells into peripheral blood. ctDNA in plasma carries tumor-specific alterations that can be used to monitor minimal residual disease, response to therapy, tumor burden and evolution throughout the course of the disease. In CircSarc, we have enrolled 30 high-grade soft-tissue sarcoma patients, with localized disease, who are being followed throughout the course of their disease. Plasma from each patient is collected longitudinally: before and after surgery, at each routine control, and before and after each treatment cycle. Patients' tumor and germline DNA were exome sequenced to identify tumor-specific mutations, and ctDNA is being sequenced using a comprehensive 900 cancer gene panel. The level of ctDNA in plasma, represented by the tumor-specific biomarkers, is then monitored throughout the course of the treatment, and acts as an indicator of tumor burden. In addition, we are analyzing plasma samples from 70 gastrointestinal stroma tumor (GIST) samples using targeted resequencing with Anchored Multiplex PCR (ArcherDX). The levels of KIT and PDGFRA mutations in ctDNA are being correlated with clinical and pathologic features. The established targeted resequencing protocols for ctDNA provide different levels of complexity and sensitivity. In the first screening, we have successfully detected somatic mutations in plasma at time of surgery in 70% of the samples analyzed. Mutations present in the tumor at an allele frequency larger than 20% can be robustly identified in plasma. In addition, analysis of plasma samples identified novel mutations not detected in the primary tumor, possibly reflecting intratumor heterogeneity. Similarly, analysis of plasma from GIST patients has identified ctDNA in over 50% of the cases analyzed. In selected cases, ctDNA sequencing has revealed tumor heterogeneity, which has been confirmed by spatial biopsies of the resected tumor. Our work provides new insights into the clinical significance of ctDNA in sarcomas. By repeated sampling of liquid biopsies, somatic mutations identified in ctDNA can be used as unique noninvasive tumor-specific biomarkers for monitoring tumor burden and disease evolution throughout the course of the disease. Citation Format: Heidi M. Namløs, Seyed Hossein Moosavi, Susanne Lorenz, Bodil Bjerkehagen, Olga Zaikova, Synnøve Granlien, Stine Næss, Eva Stratford, Else Munthe, Lars B. Aasheim, Sigve Nakken, Eivind Hovig, Nina L. Jebsen, Kirsten Sundby Hall, Skyler Mishkin, Brian Kudlow, Ola Myklebost, Kjetil Boye, Leonardo A. Meza-Zepeda. Disease monitoring by liquid biopsies in sarcomas [abstract]. In: Proceedings of the AACR Conference on Advances in Sarcomas: From Basic Science to Clinical Translation; May 16-19, 2017; Philadelphia, PA. Philadelphia (PA): AACR; Clin Cancer Res 2018;24(2_Suppl):Abstract nr A08.
- Published
- 2018
39. Liposarcoma
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Rickard Lofvenberg, Clement S. Trovik, Olga Zaikova, Peter Bergh, Katarina Engström, Helena Johansson, Ola Wahlström, Henrik C. F. Bauer, Ragnar Hultborn, and Pelle Gustafson
- Subjects
Adult ,Male ,Cancer Research ,medicine.medical_specialty ,Adolescent ,medicine.medical_treatment ,Population ,Scandinavian and Nordic Countries ,Liposarcoma ,Disease-Free Survival ,Metastasis ,medicine ,Humans ,Registries ,Neoplasm Metastasis ,education ,Survival analysis ,Aged ,Aged, 80 and over ,Myxoid liposarcoma ,education.field_of_study ,business.industry ,Soft tissue sarcoma ,Middle Aged ,Prognosis ,medicine.disease ,Survival Analysis ,Surgery ,Radiation therapy ,Treatment Outcome ,Oncology ,Female ,Radiotherapy, Adjuvant ,Sarcoma ,Neoplasm Recurrence, Local ,business - Abstract
BACKGROUND. The aim was to study the clinicopathological characteristics, treatment, and outcome of liposarcoma in an unselected, population-based patient sample, and to establish whether treatment was according to the Scandinavian Sarcoma Group (SSG) treatment guidelines. METHODS. The SSG Pathology Board reviewed 319 liposarcoma cases reported between 1986 and 1998. After the review, 237 patients without metastasis were analyzed for local recurrence rate in relation to surgical margins, radiotherapy, occurrence of metastasis, and survival. RESULTS. Seventy-eight percent of the patients were primarily operated oil at a sarcoma center, 45% with wide margins. All patients operated on outside the center had nonwide margins. Low-grade lesions constituted 67% of cases. Despite nonwide surgery, only 58% of high-grade lesions were treated with postoperative radiotherapy. The risk of local recurrence after nonwide surgery, without irradiation, was 47% for high-grade lesions. The estimated 10-year, local recurrence-free and metastasis-free survival in the low-grade group was 87% and 95%, respectively. In the high-grade group, it was 75% and 61%, respectively. Independent adverse prognostic factors for local recurrence were surgery outside a sarcoma center and histological type dedifferentiated liposarcoma. For metastases, they were old age, large tumor size, high grade, and histological type myxoid liposarcoma with a round cell component. Radiotherapy showed significant effect oil local recurrence rate for the same grade and margin. CONCLUSIONS. Patients with liposarcoma should be treated at specialized centers. Postoperative radiotherapy decreases the local recurrence rate. To maintain quality and provide support for further trials, reporting to quality registers is crucial.
- Published
- 2008
40. Referral patterns, treatment and outcome of high-grade malignant bone sarcoma in Scandinavia--SSG Central Register 25 years' experience
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Olga, Zaikova, Kirsten, Sundby Hall, Emelie, Styring, Mikael, Eriksson, Clement S, Trovik, Peter, Bergh, Bodil, Bjerkehagen, Mikael, Skorpil, Harald, Weedon-Fekjaer, and Henrik C F, Bauer
- Subjects
Adult ,Male ,Sweden ,Time Factors ,Adolescent ,Norway ,Bone Neoplasms ,Sarcoma ,Middle Aged ,Young Adult ,Treatment Outcome ,Humans ,Female ,Registries ,Referral and Consultation ,Aged - Abstract
The objectives of this study were to present changes in referral patterns, treatment and survival in patients with high-grade malignant bone sarcoma in Sweden and Norway based on data in the Scandinavian Sarcoma Group (SSG) Central Register.Data on 1,437 patients with diagnosis 1986-2010 was analyzed.Osteosarcoma was the most frequentl diagnosis (45%), followed by Ewing sarcoma (21%) and chondrosarcoma (17%). Thirty-one percent of Swedish and 41% of Norwegian patients had tumors in the axial skeleton. Eighty-six percent of extremity tumors and 66% of axial tumors were referred to a sarcoma center prior to unplanned surgery or biopsy. During the past decade, limb salvage surgery has risen from under 50% to over 80%. Five-year overall survival in non-metastatic osteosarcoma was 70% for extremity tumors, and 35% for axial tumors. No improvement in osteosarcoma survival was observed during the last decade. Five-year survival in Ewing sarcoma improved from 50% to 69%.Referral patterns in bone sarcomas have improved. However, greater efforts should be dedicated to improving referral of patients with possible tumors in the axial skeleton to multidisciplinary teams (MDTs). Overall survival of patients with high-grade malignant bone sarcomas in Sweden and Norway is in line with other reports.
- Published
- 2015
41. Prognostic factors and follow-up strategy for superficial soft-tissue sarcomas: Analysis of 622 surgically treated patients from the scandinavian sarcoma group register
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Panagiotis, Tsagozis, Henrik C, Bauer, Emelie, Styring, Clement S, Trovik, Olga, Zaikova, and Otte, Brosjö
- Subjects
Adult ,Aged, 80 and over ,Male ,Adolescent ,Infant ,Sarcoma ,Middle Aged ,Scandinavian and Nordic Countries ,Prognosis ,Survival Analysis ,Young Adult ,Child, Preschool ,Population Surveillance ,Humans ,Female ,Registries ,Neoplasm Metastasis ,Neoplasm Recurrence, Local ,Child ,Aged - Abstract
Our study aimed to describe the clinical outcome of patients with superficial soft-tissue sarcomas (SSTS), define prognostic factors and provide evidence for a rational surveillance scheme.Data for 622 consecutive, surgically treated SSTS patients were retrieved from the Scandinavian Sarcoma Group Register. We assessed the rates of local recurrence (LR) and metastasis (M), as well as overall survival (OS), local recurrence free-survival (LRFS) and metastasis-free survival (MFS) of the cohort.The incidence of LR and M was 9% and 12%, respectively. OS at 5 years was 79%, LRFS was 74% and MFS 76%. Factors that affected OS, LRFS, and MFS were tumor size and patient age. Additionally, tumor grade was an independent prognostic factor for LRFS. The majority of LR and M events were observed the first 2 years of follow-up. Clear surgical margins were correlated to lower risk for LR. Selected patients benefited from adjuvant radiotherapy.SSTS have a favourable prognosis, which is mainly determined by tumour-associated factors. Adequate surgical margins are important for local control, whereas radiotherapy has a secondary role. The data support current surveillance schemes, with a closer follow-up the first 2 years after surgery.
- Published
- 2014
42. Abstract 5700: CircSarc: Disease monitoring by liquid biopsies in sarcomas
- Author
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Lars Birger Aasheim, Kirsten Sundby Hall, Ola Myklebost, Heidi M. Namløs, Else Munthe, Eivind Hovig, Brian Kudlow, Olga Zaikova, Seyed H. Moosavi, Synnøve Granlien, Nina L. Jebsen, Kjetil Boye, Eva W. Stratford, Bodil Bjerkehagen, Skyler Mishkin, Stine Næss, and Leonardo A. Meza-Zepeda
- Subjects
Cancer Research ,Pathology ,medicine.medical_specialty ,Oncology ,business.industry ,medicine ,Disease monitoring ,business - Abstract
The CircSarc study aims to provide new insights into the clinical utility of liquid biopsies in soft tissue sarcomas. At present, mutational profiles of solid tumours are obtained from tissue biopsies or surgical specimens. Recent advances in technology now allows to use blood plasma as a “liquid biopsy”, examining circulating tumour DNA (ctDNA) shed by the tumour cells into peripheral blood. ctDNA in plasma carries tumour-specific alterations that can be used to monitor minimal residual disease, response to therapy, tumour burden and evolution throughout the course of the disease. In CircSarc, we have enrolled 30 high-grade soft tissue sarcoma patients, with localised disease, that are being followed throughout the course of their disease. Plasma from each patient is collected longitudinally; before and after surgery, at each routine control and before and after each treatment cycle. Patient’s tumour and germline DNA were exome sequenced to identify tumour-specific mutations, and ctDNA is being sequenced using a comprehensive 900 cancer gene panel. The level of ctDNA in plasma, represented by the tumour-specific biomarkers, are then monitored throughout the course of the treatment, and acts as an indicator of tumour burden. In addition, we are analysing plasma samples from 70 Gastro Intestinal Stroma Tumour samples using targeted resequencing with Anchored Multiplex PCR. The levels of KIT and PDGFRA mutations in ctDNA are being correlated with clinical and pathological features. The established targeted resequencing protocols for ctDNA provide different levels of complexity and sensitivity. In the first screening, we have successfully detected somatic mutations in plasma at time of surgery in 70% of the samples analysed. Mutations present in the tumour at an allele frequency large than 20% can be robustly identified in plasma. In addition, analysis of plasma samples identified novel mutations not detected in the primary tumour, possibly reflecting intra-tumour heterogeneity. These mutations are being followed throughout the course of the disease to monitor tumour evolution and resistance. In a proof-of-concept study, we have shown that that levels of tumour-specific mutations in liquid biopsies correlated to clinical manifestation of metastatic disease in aggressive sarcoma, and have the potential to detect disease progression at an early stage. Our work provides new insights into the clinical significance of ctDNA in sarcomas. By repeated sampling of liquid biopsies, somatic mutations identified in ctDNA can be used as unique non-invasive tumour-specific biomarkers for monitoring tumour burden and disease evolution throughout the course of the disease. Citation Format: Heidi M. Namløs, Seyed Hossein Moosavi, Bodil Bjerkehagen, Olga Zaikova, Synnøve Granlien, Stine Næss, Nina Louise Jebsen, Skyler Mishkin, Eva W. Stratford, Else Munthe, Kirsten S. Hall, Lars B. Aasheim, Eivind Hovig, Brian Kudlow, Ola Myklebost, Kjetil Boye, Leonardo A. Meza-Zepeda. CircSarc: Disease monitoring by liquid biopsies in sarcomas [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2017; 2017 Apr 1-5; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2017;77(13 Suppl):Abstract nr 5700. doi:10.1158/1538-7445.AM2017-5700
- Published
- 2017
43. Prognostic factors in patients with symptomatic spinal metastases and normal neurological function
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Olga Zaikova, John K. Hald, Ulf E Kongsgaard, Knut Håkon Hole, M. D. Switlyk, Kjetil Knutstad, and Sigmund Skjeldal
- Subjects
Oncology ,Adult ,Male ,medicine.medical_specialty ,Multivariate analysis ,Lung Neoplasms ,medicine.medical_treatment ,Analgesic ,Breast Neoplasms ,Spinal canal stenosis ,Disease ,Internal medicine ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Neoplasm Metastasis ,Aged ,Aged, 80 and over ,Spinal Neoplasms ,medicine.diagnostic_test ,business.industry ,Albumin ,Prostatic Neoplasms ,Magnetic resonance imaging ,Middle Aged ,Prognosis ,Magnetic Resonance Imaging ,Survival Analysis ,Surgery ,Radiation therapy ,Female ,business ,Spinal metastases - Abstract
Aims To evaluate potential prognostic factors for predicting survival after radiotherapy in patients with painful spinal metastases and normal neurological function. Materials and methods In total, 173 patients were included. The following prognostic factors were assessed: primary cancer site, age, gender, albumin and haemoglobin levels, Karnofsky performance status (KPS), analgesic use, pain intensity, number of extraspinal bone metastases and visceral metastases, presence of tumour-conditioned spinal canal stenosis and metastatic spinal cord compression, and extension of spinal metastatic disease on magnetic resonance imaging (MRI). Ongoing systemic treatment, use of bisphosphonates and response to radiotherapy were also evaluated. A simple scoring system for predicting survival was used. Results The following predictive factors were found to be significant in multivariate analysis: primary cancer site, KPS, albumin level, number of visceral metastases and analgesic use. Three survival groups were proposed. The overall survival probabilities for groups 1–3 were 13, 46 and 94% at 6 months; 4, 28 and 79% at 12 months, respectively. The median survival times for groups 1–3 were 2.1, 5.5 and 24.9 months, respectively ( P Conclusion The pretreatment albumin level was a significant prognostic indicator for survival. Similarly, the primary cancer site, KPS and number of visceral metastases were associated with survival; these findings were consistent with the results of previous studies. The pretreatment analgesic use was significant using the univariate and multivariate analyses and this factor can be verified in future trials. Self-reported pain intensity, pain response to radiotherapy and MRI findings did not influence survival times.
- Published
- 2014
44. Prognostic role of en-bloc resection and late onset of bone metastasis in patients with bone-seeking carcinomas of the kidney, breast, lung, and prostate: SSG study on 672 operated skeletal metastases
- Author
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Maire, Ratasvuori, Rikard, Wedin, Bjarne H, Hansen, Johnny, Keller, Clement, Trovik, Olga, Zaikova, Peter, Bergh, Anders, Kalen, and Minna, Laitinen
- Subjects
Adult ,Aged, 80 and over ,Male ,Lung Neoplasms ,Humans ,Prostatic Neoplasms ,Bone Neoplasms ,Breast Neoplasms ,Female ,Middle Aged ,Prognosis ,Kidney Neoplasms ,Aged - Abstract
In metastatic disease, decisions regarding potential surgery require reliable data about the patient's survival. In this study, we evaluated different prognostic factors and their impact in four common primary tumors causing bone metastases.Data were acquired from the Scandinavian Sarcoma Group (SSG) metastasis registry. The patients underwent surgery between July 1999 and July 2009. This study included breast, prostate, lung, and kidney cancer cases, with a total of 672 operated non-spinal metastases. Differences in prognostic factors were evaluated using the Kaplan-Meier method with long-rank test. Cox regression multivariate analysis was performed to identify statistically independent prognostic factors.Significant factors affecting survival were the presence of organ metastases, overall heath status, and disease load. In kidney cancer, en bloc resection of solitary metastases was associated with a significant fourfold longer survival compared to intralesional surgery. Preoperative radiotherapy was associated with higher complication and reoperation rates.This data summary is important tool for clinicians to evaluate survival and choose treatment options for patients suffering from metastatic bone disease.
- Published
- 2014
45. Radiotherapy for spinal metastases from breast cancer with emphasis on local disease control and pain response using repeated MRI
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Marta D. Switlyk, John K. Hald, Øyvind S. Bruland, Olga Zaikova, Sigmund Skjeldal, and Therese Seierstad
- Subjects
medicine.medical_specialty ,Pathology ,lcsh:Diseases of the musculoskeletal system ,Metastatic lesions ,medicine.medical_treatment ,lcsh:RC254-282 ,Breast cancer ,Medicine ,In patient ,medicine.diagnostic_test ,Pain response ,Radiotherapy ,business.industry ,Radiation field ,Bone metastases ,Magnetic resonance imaging ,lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,medicine.disease ,Radiation therapy ,Oncology ,Local disease ,Radiology ,lcsh:RC925-935 ,business ,Spinal metastases ,Research Article ,MRI - Abstract
Aims: To evaluate metastatic lesions within the radiation field using repeated magnetic resonance imaging (MRI) and to compare the imaging findings with pain response following radiotherapy (RT) in patients with spinal metastases (SM) from breast cancer. Material and methods: 32 Patients with SM from breast cancer admitted for fractionated RT were included in this study. MRI examinations of the spine were scored for the extent of bone metastases, epidural disease and the presence and severity of vertebral fractures. Clinical response was defined according to the updated international consensus on palliative RT endpoints. Results: At 2 and 6 months after RT, 38% and 44% of the patients were classified as responders. None of the patients developed motor deficits. Importantly, a decrease in the intraspinal tumor volume after RT was reported in all patients. Only 6% of the patients showed bone metastases progression within the RT field, whereas 60% of the patients showed disease progression outside the RT portals. 5 Patients developed new fractures after RT, and fracture progression was observed in 21 of the 38 lesions (55%). The pain response to RT did not correlate with the presence of vertebral body fracture before RT, fracture progression or other recorded MRI features of metastatic lesions. Conclusion: RT provided excellent local tumor control in patients with SM. Most patients benefit from RT even in cases of progressive vertebral fracture. Pain response was not associated with imaging findings and MRI cannot be used to select patients at risk of not responding to RT.
- Published
- 2013
46. Insight opinion to surgically treated metastatic bone disease: Scandinavian Sarcoma Group Skeletal Metastasis Registry report of 1195 operated skeletal metastasis
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Peter Bergh, Minna Laitinen, Johnny Keller, Markus Nottrott, Anders Kalén, Halldor Jonsson, Johan Nilsson, Rikard Wedin, Olga Zaikova, and Maire Ratasvuori
- Subjects
medicine.medical_specialty ,Bone disease ,business.industry ,Cancer ,Bone metastasis ,Bone Neoplasms ,Scandinavian and Nordic Countries ,medicine.disease ,Prognosis ,Primary tumor ,Surgery ,Breast cancer ,Fractures, Spontaneous ,Oncology ,Orthopedic surgery ,medicine ,Humans ,Intractable pain ,Sarcoma ,business - Abstract
The number of cancer patients living with metastatic disease is growing. The increased survival has led to an increase in the number of cancer-induced complications, such as pathologic fractures due to bone metastases. Surgery is most commonly needed for mechanical complications, such as fractures and intractable pain. We determined survival, disease free interval and complications in surgically treated bone metastasis. Data were collected from the Scandinavian Skeletal Metastasis Registry for patients with extremity skeletal metastases surgically treated at eight major Scandinavian referral centres between 1999 and 2009 covering a total of 1195 skeletal metastases in 1107 patients. Primary breast, prostate, renal, lung, and myeloma tumors make up 78% of the tumors. Number of complications is tolerable and is affected by methods of surgery as well as preoperative radiation therapy. Overall 1-year patient survival was 36%; however, mean survival was influenced by the primary tumor type and the presence of additional visceral metastases. Patients with impending fracture had more systemic complications than those with complete fracture. Although surgery is usually only a palliative treatment, patients can survive for years after surgery. We developed a simple, useful and reliable scoring system to predict survival among these patients. This scoring system gives good aid in predicting the prognosis when selecting the surgical method. While it is important to avoid unnecessary operations, operating when necessary can provide benefit.
- Published
- 2012
47. Pathological subtrochanteric fractures in 194 patients: a comparison of outcome after surgical treatment of pathological and non-pathological fractures
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Rüdiger J, Weiss, Wilhelmina, Ekström, Bjarne H, Hansen, Johnny, Keller, Minna, Laitinen, Clement, Trovik, Olga, Zaikova, and Rikard, Wedin
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Adult ,Aged, 80 and over ,Male ,Reoperation ,Arthroplasty, Replacement, Hip ,Femoral Neoplasms ,Age Factors ,Kaplan-Meier Estimate ,Middle Aged ,Hemoglobins ,Postoperative Complications ,Fracture Fixation ,Case-Control Studies ,Humans ,Female ,Hemiarthroplasty ,Neoplasm Metastasis ,Femoral Fractures ,Aged ,Proportional Hazards Models - Abstract
The surgical treatment of pathological subtrochanteric fractures has been associated with technical difficulties and frequent failures. We analyzed survival, risk factors for death, and outcome after surgical treatment.The study group consisted of 194 patients with pathological subtrochanteric femur fractures operated during 1999-2009. Cox multiple-regression analysis was performed to study risk factors and results were expressed as hazard ratios (HR). We included a control group with non-pathological subtrochanteric fractures (n = 87) for comparison.The median age at surgery was 68 (29-96) years in the study group and 82 (66-101) in the controls. The 1-year survival rate after surgery was 33% (95% CI: 26-40) in the study group and 85% (79-93) in the controls. In the study group, the risk of death after surgery was increased for patients ≥65 years of age (HR 1.5, 95% CI: 1.1-2.1), with a moderate (HR 2.2, 1.5-3.4) and poor (HR 2.9, 1.6-5.2) Karnofsky score, with visceral metastases (HR 1.6, 1.1-2.3), and perioperative hemoglobin levels100 g/L (HR 2.2, 1.3-3.7). In patients with pathological fractures, there was no statistically significant difference concerning reoperation rates comparing intramedullary nails (9%) with endoprostheses (6%; P = 0.3).Surgery for pathological subtrochanteric femur fractures is a relatively safe and effective procedure.
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- 2012
48. A population-based study of spinal metastatic disease in South-East Norway
- Author
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Stein Kvaløy, Karl Erik Giercksky, Sigmund Skjeldal, Sophie D. Fosså, Tom Børge Johannesen, and Olga Zaikova
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Adult ,Male ,medicine.medical_specialty ,Pediatrics ,medicine.medical_treatment ,Population ,Disease ,Young Adult ,Spinal cord compression ,medicine ,Prevalence ,Humans ,Radiology, Nuclear Medicine and imaging ,Young adult ,education ,Aged ,Aged, 80 and over ,education.field_of_study ,Spinal Neoplasms ,business.industry ,Norway ,Incidence (epidemiology) ,Medical record ,Incidence ,Cancer ,Middle Aged ,medicine.disease ,Surgery ,Radiation therapy ,Oncology ,Female ,business ,Spinal Cord Compression - Abstract
Aims Spinal metastatic disease (SMD) is a serious complication of cancer. To our knowledge, only one population-based study of metastatic spinal cord compression (MSCC) has been carried out. The purpose of the present study was to describe population-based incidences of SMD that required local treatment, such as radiotherapy, surgery or vertebroplasty, including patients with or without cord compression, and to characterise the neurological status of these patients. Materials and methods During 18 months, all patients with SMD who received local treatment in the South-Eastern Health Region of Norway (population 2.6 million inhabitants) were identified and their medical records were reviewed. Results In total, 1002 patients were included; 83% had multiple lesions in the spine; 39% had SMD at the time of the primary cancer diagnosis. At the start of local treatment, 31% had MSCC and 11% were not able to walk. The prevalence of MSCC at the time of cancer diagnosis was 0.36%. The annual incidences per 100 000 inhabitants were 26.0 for SMD and 8.1 for MSCC. Conclusion Population-based incidences of SMD requiring local treatment have been reported for the first time. The prevalence of MSCC at the time of cancer diagnosis was higher than previously reported. A more precise definition of MSCC and more population-based studies are needed to reduce selection bias when comparing different studies.
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- 2009
49. Use of liquid biopsies to monitor disease progression in a sarcoma patient: a case report
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Bodil Bjerkehagen, Heidi M. Namløs, Ola Myklebost, Olga Zaikova, Daniel Vodak, Kjetil Boye, Eivind Hovig, and Leonardo A. Meza-Zepeda
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Male ,0301 basic medicine ,Pathology ,medicine.medical_specialty ,Cancer Research ,ThunderBolts ,DNA Mutational Analysis ,Circulating cell-free DNA ,Case Report ,Disease ,medicine.disease_cause ,03 medical and health sciences ,0302 clinical medicine ,Surgical oncology ,Biopsy ,KRAS ,medicine ,Genetics ,Humans ,Liquid biopsy ,Cancer ,medicine.diagnostic_test ,business.industry ,Soft tissue sarcoma ,Liquid Biopsy ,Sarcoma ,DNA ,ctDNA ,Middle Aged ,medicine.disease ,030104 developmental biology ,Oncology ,NF1 ,030220 oncology & carcinogenesis ,Mutation ,Disease Progression ,Neoplasm Recurrence, Local ,business - Abstract
Background Many patients experience local recurrence or metastases after receiving potentially curative treatment, and early detection of these events is important for disease control. Recent technological advances make it possible to use blood plasma containing circulating cell-free tumour DNA (ctDNA) as a liquid biopsy. In this case report we show how serial liquid biopsies can be used to monitor the disease course and detect disease recurrence in a sarcoma patient. Case presentation A 55-year-old male presented with a rapidly growing, painful palpable mass in the left groin region, and a biopsy revealed a high-grade malignant spindle cell sarcoma. No metastases were detected on radiologic imaging scans. Using targeted resequencing with a custom 900 cancer gene panel, eight somatic mutations among them KRAS and NF1, were identified in the primary tumour. Targeted resequencing of plasma cell-free DNA (ctDNA) collected before and after surgery and at disease progression confirmed the presence of six of eight mutations at all three time points. The ctDNA level, estimated from the somatic allele frequencies of these six mutations, was high in plasma taken at the time of surgery, at levels similar to the primary tumour. Detection of low levels of ctDNA three days after surgery indicated persistent microscopic disease. Repeated radiologic imaging six weeks postoperatively showed widespread metastatic disease in the lungs, skeleton and the pelvic region. At this time point there was a dramatic increase in the ctDNA level, reflecting the disease progression of the patient. The patient had an unusually aggressive cancer, and succumbed to the disease 13 weeks after surgery. Conclusions This case report demonstrated that targeted resequencing of ctDNA from longitudinal collected plasma can be used to monitor disease progression in a soft tissue sarcoma patient, including manifestation of metastatic disease. The ctDNA represented the genomic profile of the tumour, supporting clinical use of liquid biopsies to identify tumour-specific mutations as well as recurrent disease. Electronic supplementary material The online version of this article (doi:10.1186/s12885-016-2992-8) contains supplementary material, which is available to authorized users.
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