184 results on '"Max, Peters"'
Search Results
2. Online adaptive MR-guided radiotherapy: Conformity of contour adaptation for prostate cancer, rectal cancer and lymph node oligometastases among radiation therapists and radiation oncologists
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Marnix J.A. Rasing, Gonda G. Sikkes, Nicole G.P.M. Vissers, Alexis N.T.J. Kotte, Joske H. Boudewijn, Patricia A.H. Doornaert, Wietse S.C. Eppinga, Martijn Intven, Reijer H.A. Rutgers, Annick Scheeren, Louk M.W. Snoeren, Tiny B. Vlig, Jochem R.N. van der Voort van Zyp, Lisa M. Wijkhuizen, Peter S.N. van Rossum, Max Peters, and Ina M. Jürgenliemk-Schulz
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MR-guided radiotherapy ,Image-guided radiation ,MR-Linac ,Conformity ,Delineation ,Adaptive ,Medical physics. Medical radiology. Nuclear medicine ,R895-920 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Background and purpose: Online adaptive MR-guided treatment planning workflows facilitate daily contour adaptation to the actual anatomy. Allocating contour adaptation to radiation therapists (RTTs) instead of radiation oncologists (ROs) might allow for increasing workflow efficiency. This study investigates conformity of adapted target contours provided by dedicated RTTs and ROs. Materials and methods: In a simulated online procedure, 6 RTTs and 6 ROs recontoured targets and organs at risk (OAR) in prostate cancer (n = 2), rectal cancer (n = 2) and lymph node-oligometastases (n = 2) cases. RTTs gained contouring competence beforehand by following a specific in-house training program. For all target contours and the reference delineations volumetric differences were determined and Dice similarity coefficient (DSC), conformity index (CI) and generalized CI were calculated. Delineation time and –confidence were registered for targets and OAR. Impact of contour adaptation on treatment plan quality was investigated. Results: Delineation conformity was generally high with DSC, CI and generalized CI values in the range of 0.81–0.94, 0.87–0.95 and 0.63–0.85 for prostate cancer, rectal cancer and LN-oligometastasis, respectively. Target volumes were comparable for both, RTTs and ROs. Time needed and confidence in contour adaptation was comparable as well. Treatment plans derived with adapted contours did not violate dose volume constrains as used in clinical routine. Conclusion: After tumor site specific training, daily contour adaptations as needed in adaptive online radiotherapy workflows can be accurately performed by RTTs. Conformity of the derived contours is high and comparable to contours as provided by ROs.
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- 2022
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3. The impact of para-aortic lymph node irradiation on disease-free survival in patients with cervical cancer: A systematic review and meta-analysis
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Leslie J.H. Bukkems, Ina M. Jürgenliemk-Schulz, Femke van der Leij, Max Peters, Cornelis G. Gerestein, Ronald P. Zweemer, and Peter S.N. van Rossum
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Cervical cancer ,Chemoradiotherapy ,Para-aortic radiotherapy ,Disease-free survival ,Meta-analysis ,Medical physics. Medical radiology. Nuclear medicine ,R895-920 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Background: Patients with locally advanced cervical cancer without para-aortic lymph node metastases (PAO-LNM) at diagnosis who undergo concurrent chemoradiotherapy are at 4–11% risk of developing PAO-LNM during follow-up. Some studies suggest a beneficial influence of elective para-aortic radiotherapy (PAO-RT) on disease-free survival (DFS) in these patients. The aim of this study was to systematically review and meta-analyse literature on the impact of PAO-RT on DFS in cervical cancer patients. Methods: A systematic search of PubMed/MEDLINE and EMBASE databases was performed. The analysis included intervention studies that reported on DFS in patients with cervical cancer who received chemotherapy and pelvic radiotherapy with or without PAO-RT. From each included study, relevant study characteristics and outcome data including the hazard ratio (HR) adjusted for potential confounders were extracted. An overall pooled adjusted hazard ratio (aHR) for DFS after PAO-RT versus no PAO-RT was calculated using a random-effects model. Results: A total of 2,016 articles were evaluated. Eleven articles were included in the systematic review, of which 3 were appropriate for quantitative meta-analysis. Pooling of these 3 cohorts (including 1,113 patients) demonstrated a statistically significant association between PAO-RT and DFS (pooled aHR 0.87, 95% confidence interval: 0.79–0.97). No significant heterogeneity among reported aHRs was observed (I2 = 0.0%). Conclusions: This meta-analysis suggests a modest but significant beneficial impact of elective para-aortic radiotherapy on DFS in patients with locally advanced cervical cancer who undergo concurrent chemoradiotherapy. This finding based on non-randomized studies provides an imperative for further investigation in prospective controlled trials.
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- 2022
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4. The impact of schizophrenia spectrum disorder, bipolar disorder and borderline personality disorder on radiotherapy treatment and overall survival in cancer patients: A matched pair analysis
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Max Peters, Hajo W. Boersma, Peter S.N. van Rossum, Jasper van Oort, Wiepke Cahn, and Joost J.C. Verhoeff
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Schizophrenia ,Bipolar disorder ,Borderline ,Radiotherapy ,Survival ,Medical physics. Medical radiology. Nuclear medicine ,R895-920 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Introduction: The effect of a psychiatric disorder (PD) on the choice of radiotherapy regimens and subsequent cancer control outcomes is largely unknown. In this study, we evaluated differences in radiotherapy regimens and overall survival (OS) between cancer patients with a PD in comparison with a control population of patients without a PD. Methods: Referred patients with a PD (i.e. schizophrenia spectrum disorder, bipolar disorder or borderline personality disorder) were included through a text-based search of the electronic patient database of all the patients that received radiotherapy between 2015 and 2019 at a single centre. Each patient was matched to a patient without a PD. Matching was based on cancer type, staging, performance score (WHO/KPS), non-radiotherapeutic cancer treatment, gender and age. Outcomes were the amount of fractions received, total dose, and OS. Results: 88 patients with PD were identified; 44 patients with schizophrenia spectrum disorder, 34 with bipolar disorder, and 10 with borderline personality disorder. Matched patients without a PD showed similar baseline characteristics. No statistically significant difference was observed regarding the number of fractions with a median of 16 (interquartile range [IQR] 3–23) versus 16 (IQR 3–25), respectively (p = 0.47). Additionally, no difference in total dose was found. Kaplan-Meier curves showed a statistically significant difference in OS between the patients with a PD versus those without a PD, with 3-year OS rates of 47 % versus 61 %, respectively (hazard ratio 1.57, 95 % confidence interval 1.05–2.35, p = 0.03). No clear differences in causes of death were observed. Conclusion: Cancer patients referred for radiotherapy with schizophrenia spectrum disorder, bipolar disorder or borderline personality disorder receive similar radiotherapy schedules for a variety of tumour types but attain worse survival.
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- 2023
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5. The overall survival impact of prophylactic cranial irradiation in limited-stage small-cell lung cancer: A systematic review and meta-analysis
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Mathijs L. Tomassen, Jacquelien Pomp, Janneke van der Stap, Anne S.R. van Lindert, Max Peters, José S.A. Belderbos, Dirk K.M. De Ruysscher, Steven H. Lin, Joost J.C. Verhoeff, and Peter S.N. van Rossum
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Medical physics. Medical radiology. Nuclear medicine ,R895-920 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Background: Prophylactic cranial irradiation (PCI) for limited-stage small-cell lung cancer (LS-SCLC) patients has become more controversial. Since the publication of the systematic review by Aupérin et al. in 1999, no randomized controlled trials regarding PCI in LS-SCLC have been completed. The aim of this study was to systematically review and meta-analyze the effect of PCI on overall survival (OS) in patients with LS-SCLC. Methods: A systematic search was conducted in the databases of MEDLINE (PubMed), Embase and the Cochrane library. Only studies that reported an adjusted hazard ratio (aHR), indicating the effect of PCI versus no PCI on OS (adjusted for confounders) in patients with LS-SCLC were included for critical appraisal and meta-analysis. A pooled aHR estimate was calculated using a random-effects model. Results: Pooling of 28 retrospective studies including a total of 18,575 patients demonstrated a significant beneficial effect of PCI versus no PCI on OS with a pooled aHR of 0.62 (95% CI: 0.57–0.69). Substantial heterogeneity of reported aHRs among studies was observed (I2 = 65.9%). Subgroup analyses revealed that this heterogeneity could partly be explained by study sample size. The pooled aHR among 7 versus 21 studies with a sample size of > 300 versus ≤ 300 patients was 0.79 (95% CI: 0.64–0.97) versus 0.56 (95% CI: 0.46–0.69; p
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- 2022
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6. Do cancer detection rates differ between transperineal and transrectal micro-ultrasound mpMRI-fusion-targeted prostate biopsies? A propensity score-matched study
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Arnas Rakauskas, Max Peters, Paul Martel, Peter S. N. van Rossum, Stefano La Rosa, Jean-Yves Meuwly, Beat Roth, and Massimo Valerio
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Medicine ,Science - Abstract
Introduction High-resolution micro-ultrasound (micro-US) is a novel precise imaging modality that allows targeted prostate biopsies and multiparametric magnet resonance imaging (mpMRI) fusion. Its high resolution relying on a 29 MHz transducer allows real-time visualisation of prostate cancer lesions; this might overcome the inaccuracy of conventional MRI-US fusion biopsy strategies. We compared cancer detection rates in patients who underwent transrectal (TR-B) versus transperineal (TP-B) MR-micro-US fusion biopsy. Materials and methods 1:2 propensity score matching was performed in 322 consecutive procedures: 56 TR-B and 266 TP-B. All prostate biopsies were performed using ExactVuTM micro-US system with mpMRI image fusion. Clinically significant disease was defined as grade group ≥2. The primary objective was to evaluate the detection of clinically significant disease according to access route. The secondary outcomes were to compare the respective detection rates of random and targeted biopsies stratified per access route and to evaluate micro-US for its potential added value. Results 47 men undergoing TR-B and 88 undergoing TP-B were matched for age, PSA, clinical stage, prostate volume, PIRADS score, number of mpMRI-visible lesions and indication to biopsy. The detection rates of clinically significant and of any prostate cancer did not differ between the two groups (45% TR-B vs 42% TP-B; p = 0.8, and 57% TR-B vs 59% TP-B; p = 0.9, respectively). Detection rates also did not differ significantly between random (p = 0.4) and targeted biopsies (p = 0.7) stratified per access route. Micro-US targeted biopsy detected 36 MRI-invisible lesions in 33 patients; 19% of these lesions were positive for clinically significant disease. Overall, micro-US targeted biopsies upgraded 2% of patients to clinically significant disease that would have been missed otherwise. Conclusions MR-micro-US-fusion TR-B and TP-B have similar diagnostic yields in terms of detection rates of clinically significant prostate cancer. Micro-US targeted biopsy appears to have an additional diagnostic value over systematic and MRI-targeted biopsies.
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- 2023
7. Development and internal validation of multivariable prediction models for biochemical failure after MRI-guided focal salvage high-dose-rate brachytherapy for radiorecurrent prostate cancer
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Thomas Willigenburg, Marieke J. van Son, Sandrine M.G. van de Pol, Wietse S.C. Eppinga, Jan J.W. Lagendijk, Hans C.J. de Boer, Marinus A. Moerland, Jochem R.N. van der Voort van Zyp, and Max Peters
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Brachytherapy ,Focal salvage high-dose-rate brachytherapy ,Prediction model ,Prostate cancer ,Radiotherapy ,Recurrence ,Medical physics. Medical radiology. Nuclear medicine ,R895-920 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Background and purpose: Magnetic resonance-guided focal salvage high-dose-rate brachytherapy (FS-HDR-BT) for radiorecurrent prostate cancer (PCa) shows low toxicity rates. However, biochemical failure (BF) after treatment occurs frequently. We developed two prediction models for BF (Phoenix definition) with the aim of enhancing patient counselling before FS-HDR-BT and during follow-up. Materials and methods: A prospective cohort of 150 radiorecurrent PCa patients treated with FS-HDR-BT between 2013 and 2020 was used for model development and internal validation. Multivariable Cox Proportional Hazards regression was applied. For model 1, only pre-salvage variables were included as candidate predictors. For model 2, additional (post-)salvage characteristics were tested. After calibration, nomograms and webtools were constructed. Finally, three risk groups were identified. Results: Sixty-one patients (41%) experienced BF. At baseline (model 1), age, gross tumour volume, pre-salvage PSA, and pre-salvage PSA doubling time (PSADT) were predictive of BF. During follow-up (model 2), age, pre-salvage PSA and PSADT, seminal vesicle involvement, post-salvage time to PSA nadir, and percentage PSA reduction were predictive of BF. The adjusted C-statistics were 0.73 (95% CI: 0.66–0.81) and 0.84 (95% CI: 0.78–0.90), respectively, with acceptable calibration. Estimated 2-year biochemical disease-free survival for the low-, intermediate-, and high-risk groups were 84%, 70%, and 31% (model 1), and 100%, 71%, and 5% (model 2). Conclusion: Two models are provided for prediction of BF in patients with radiorecurrent PCa treated with FS-HDR-BT. Based on pre- and post-salvage characteristics, we are able to identify patients with a high risk of BF. These findings can aid patient counselling for FS-HDR-BT.
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- 2021
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8. Evaluation of daily online contour adaptation by radiation therapists for prostate cancer treatment on an MRI-guided linear accelerator
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Thomas Willigenburg, Daan M. de Muinck Keizer, Max Peters, An Claes, Jan J.W. Lagendijk, Hans C.J. de Boer, and Jochem R.N. van der Voort van Zyp
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Prostate cancer ,MR-Linac ,MRI-guided radiotherapy ,Online contour adaptation ,Adapt-to-shape ,Radiation therapists ,Medical physics. Medical radiology. Nuclear medicine ,R895-920 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Background and purpose: Magnetic resonance (MR)-guided linear accelerator (MR-Linac) systems have changed radiotherapy workflows. The addition of daily online contour adaptation allows for higher precision treatment, but also increases the workload of those involved. We train radiation therapists (RTTs) to perform daily online contour adaptation for MR-Linac treatment of prostate cancer (PCa) patients. The purpose of this study was to evaluate these prostate contours by performing an interfraction and interobserver analysis. Materials and methods: Clinical target volume (CTV) contours generated online by RTTs from 30 low-intermediate risk PCa patients, treated with 5x7.25 Gy, were used. Two physicians (Observers) judged the RTTs contours and performed adaptations when necessary. Interfraction relative volume differences between the first and the subsequent fractions were calculated for the RTTs, Observer 1, and Observer 2. Additionally, interobserver dice’s similarity coefficient (DSC) for fraction 2–5 was calculated with the RTTs- and physician-adapted contours. Clinical acceptability of the RTTs contours was judged by a third observer. Results: Mean (SD) online contour adaptation time was 12.6 (±3.8) minutes and overall median (interquartile range [IQR]) relative volume difference was 9.3% (4.4–13.0). Adaptations by the observers were mostly performed at the apex and base of the prostate. Median (IQR) interobserver DSC between RTTs and Observer 1, RTTs and Observer 2, and Observer 1 and 2 was 0.99 (0.98–1.00), 1.00 (0.98–1.00), and 1.00 (0.99–1.00), respectively. Contours were acceptable for clinical use in 113 (94.2%) fractions. Dose-volume histogram (DVH) analysis showed significant CTV underdosage for one of the seven identified outliers. Conclusion: Daily online contour adaptation by RTTs is clinically feasible for MR-Linac treatment of PCa.
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- 2021
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9. Prophylactic cranial irradiation in patients with small cell lung cancer in The Netherlands: A population-based study
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Mathijs L. Tomassen, Mieke J. Aarts, Max Peters, Anne van Lindert, Dirk K.M. De Ruysscher, Joost J.C. Verhoeff, and Peter S.N. van Rossum
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Small cell lung cancer ,Prophylactic cranial irradiation ,Population-based ,Survey ,MRI ,Medical physics. Medical radiology. Nuclear medicine ,R895-920 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Introduction: Controversy has arisen regarding the benefit of prophylactic cranial irradiation (PCI) in patients with small cell lung cancer (SCLC), particularly since the 2017 Takahashi trial publication that supports MRI surveillance in extensive-stage (ES-)SCLC. The primary aim of this study was to assess trends and determinants in PCI use over the years 2010–2018. A secondary aim was to determine contemporary practice considerations among radiation oncologists (ROs). Methods: A nationwide population-based cohort study was conducted using the Netherlands Cancer Registry data on all newly diagnosed SCLC patients (2010–2018). The change in PCI frequency over the years and determinants for PCI were analyzed using logistic regression models. Second, an online survey was performed among Dutch lung cancer ROs in 2020. Results: Among 10,264 eligible patients, 4,894 (47%) received PCI. Compared to 2010–2014, PCI use significantly decreased in 2017–2018 in ES-SCLC (OR 0.68, 95%CI 0.60–0.77) and LS-SCLC (OR 0.56, 95%CI 0.47–0.67). Incidence year, age, performance status, and thoracic radiotherapy were independent determinants for PCI. Among 41 survey participants, PCI was recommended always/sometimes/never by 22%/71%/7% in ES-SCLC and 54%/44%/2% in LS-SCLC. For ES-SCLC and LS-SCLC, 63% and 25% of ROs, respectively, confirmed influence of the Takahashi trial on PCI recommendations. Denial of such influence was associated with insufficient institutional MRI capacity. Conclusions: A significant declining trend of PCI use in both ES-SCLC and LS-SCLC was observed in The Netherlands since 2017. The Takahashi trial seems an explanation for this trend even in LS-SCLC, with differential influence of the trial depending on institutional MRI capacity. An alarming increase in practice variation regarding PCI was found which stresses the importance of ongoing trials.
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- 2021
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10. Determining the safety of ultrafocal salvage high-dose-rate brachytherapy for radiorecurrent prostate cancer: A toxicity assessment of 150 patients
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Marieke van Son, M.D., Max Peters, M.D., Ph.D., Marinus Moerland, Ir., Ph.D., Sandrine van de Pol, M.D., Wietse Eppinga, M.D., Jan Lagendijk, Prof., and Jochem van der Voort van Zyp, Ass. prof.
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Toxicity ,CTCAE 4.0 ,Prostate cancer ,Local recurrence ,Focal salvage therapy ,Medical physics. Medical radiology. Nuclear medicine ,R895-920 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Background and purpose: Local re-treatment of radiorecurrent prostate cancer is potentially curative. However, the increased risk of severe toxicity may outweigh the opportunity of cancer control. This study aims to evaluate treatment-related toxicity from ultrafocal salvage high-dose-rate brachytherapy (HDR-BT) and to investigate potential risk factors. Materials and methods: Toxicity data from 150 treated patients (July 2013–November 2019) was collected from a prospective registry. The treatment aim was to deliver a single dose of 19 Gy to the recurrent lesion as identified on multiparametric MRI and PET-CT. Treating physicians graded genitourinary (GU) and gastro-intestinal (GI) toxicity and erectile dysfunction (ED) using the Common Terminology Criteria for Adverse Events (CTCAE) 4.0, at baseline and during follow-up. Domains with substantial (≥10%) new-onset grade ≥ 2 toxicity were further evaluated using mixed effects logistic regression to find potential risk factors. Results: Median follow-up time was 20 months (IQR 12–31). Over time, new-onset grade 2 and 3 toxicity was recorded in 41% and 3% (GU), 5% and 0% (GI) and 22% and 15% (ED). While GI toxicity remained stably low, grade ≥ 2 GU toxicity and ED were seen twice as frequent in the late phase (>3 months after treatment). Significant risk factors for grade ≥ 2 toxicity were baseline GU toxicity (grade ≥ 2), baseline ED (grade ≥ 2), IPSS (cut-off ≥ 14) and urethral dose (D10%, cut-off ≥ 17 Gy). Conclusion: Ultrafocal salvage HDR-BT is a safe re-treatment option, especially in patients with a favorable symptom profile at baseline. Adherence to urethral dose constraints is important to avoid GU toxicity.
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- 2021
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11. Health-related quality of life after ultrafocal salvage high-dose-rate brachytherapy for radiorecurrent prostate cancer: reporting the patient’s perspective
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Marieke van Son, Evelyn Monninkhof, Max Peters, Jan Lagendijk, and Jochem van der Voort van Zyp
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Health-related quality of Life ,Prostate cancer ,Local recurrence ,Focal therapy ,Salvage treatment ,Medical physics. Medical radiology. Nuclear medicine ,R895-920 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Purpose: For patients with a localized prostate cancer recurrence after radiotherapy, focal salvage treatment offers a less toxic alternative to whole-gland treatments, with the potential of preserving health-related quality of life (HR-QoL). With a focus on the patient’s perspective of treatment, this study aims to describe HR-QoL after ultrafocal salvage high-dose-rate brachytherapy (HDR-BT), and to explore predictive factors affecting HR-QoL. Material and methods: We included 100 patients treated with ultrafocal salvage HDR-BT. Prostate cancer-related HR-QoL was assessed by the EORTC QLQ-PR25 questionnaire. Domains were urinary symptoms, bowel symptoms and sexual activity/functioning. For each domain, a mixed effects model was made to estimate HR-QoL trends over time. For domains showing clinically relevant change (≥10 points difference), the mixed effects model was used to explore potential predictors (age, baseline HR-QoL score, T-stage, tumor location, CTV size, dose to organs at risk and history of ADT). Results: Median follow-up was 20 months (IQR 13–30). Mean questionnaire response rate was 86% (range 72–100%). Median baseline scores were 12 (urinary), 0 (bowel) and 67/50 (sexual activity/functioning). Urinary symptoms and sexual functioning showed clinically relevant deterioration over time (maximum difference of 11 and 12 points, respectively). Worse baseline score and higher administered dose to the urethra (≥16 Gy) were predictive of increased urinary symptoms (p
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- 2020
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12. Feasibility and first results of the ‘Trials-within-Cohorts’ (TwiCs) design in patients undergoing radiotherapy for lung cancer
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Mathijs L. Tomassen, Pim J. J. Damen, Helena M. Verkooijen, Max Peters, Janneke van der Stap, Anne S. R. van Lindert, Joost J. C. Verhoeff, and Peter S. N. van Rossum
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Oncology ,Radiology, Nuclear Medicine and imaging ,Hematology ,General Medicine - Published
- 2023
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13. Predicting the Need for Biopsy to Detect Clinically Significant Prostate Cancer in Patients with a Magnetic Resonance Imaging–detected Prostate Imaging Reporting and Data System/Likert ≥3 Lesion: Development and Multinational External Validation of the Imperial Rapid Access to Prostate Imaging and Diagnosis Risk Score
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Max Peters, David Eldred-Evans, Piet Kurver, Ugo Giovanni Falagario, Martin J. Connor, Taimur T. Shah, Joost J.C. Verhoeff, Pekka Taimen, Hannu J. Aronen, Juha Knaapila, Ileana Montoya Perez, Otto Ettala, Armando Stabile, Giorgio Gandaglia, Nicola Fossati, Alberto Martini, Vito Cucchiara, Alberto Briganti, Anna Lantz, Wolfgang Picker, Erik Skaaheim Haug, Tobias Nordström, Mariana Bertoncelli Tanaka, Deepika Reddy, Edward Bass, Peter S.N. van Rossum, Kathie Wong, Henry Tam, Mathias Winkler, Stephen Gordon, Hasan Qazi, Peter J. Boström, Ivan Jambor, and Hashim U. Ahmed
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Image-Guided Biopsy ,Male ,Risk Factors ,Urology ,Prostate ,Humans ,Prostatic Neoplasms ,Prostate-Specific Antigen ,Magnetic Resonance Imaging ,Ultrasonography, Interventional - Abstract
Although multiparametric magnetic resonance imaging (MRI) has high sensitivity, its lower specificity leads to a high prevalence of false-positive lesions requiring biopsy.To develop and externally validate a scoring system for MRI-detected Prostate Imaging Reporting and Data System (PIRADS)/Likert ≥3 lesions containing clinically significant prostate cancer (csPCa).The multicentre Rapid Access to Prostate Imaging and Diagnosis (RAPID) pathway included 1189 patients referred to urology due to elevated age-specific prostate-specific antigen (PSA) and/or abnormal digital rectal examination (DRE); April 27, 2017 to October 25, 2019.Visual-registration or image-fusion targeted and systematic transperineal biopsies for an MRI score of ≥4 or 3 + PSA density ≥0.12 ng/ml/ml.Fourteen variables were used in multivariable logistic regression for Gleason ≥3 + 4 (primary) and Gleason ≥4 + 3, and PROMIS definition 1 (any ≥4 + 3 or ≥6 mm any grade; secondary). Nomograms were created and a decision curve analysis (DCA) was performed. Models with varying complexity were externally validated in 2374 patients from six international cohorts.The five-item Imperial RAPID risk score used age, PSA density, prior negative biopsy, prostate volume, and highest MRI score (corrected c-index for Gleason ≥3 + 4 of 0.82 and 0.80-0.86 externally). Incorporating family history, DRE, and Black ethnicity within the eight-item Imperial RAPID risk score provided similar outcomes. The DCA showed similar superiority of all models, with net benefit differences increasing in higher threshold probabilities. At 20%, 30%, and 40% of predicted Gleason ≥3 + 4 prostate cancer, the RAPID risk score was able to reduce, respectively, 11%, 21%, and 31% of biopsies against 1.8%, 6.2%, and 14% of missed csPCa (or 9.6%, 17%, and 26% of foregone biopsies, respectively).The Imperial RAPID risk score provides a standardised tool for the prediction of csPCa in patients with an MRI-detected PIRADS/Likert ≥3 lesion and can support the decision for prostate biopsy.In this multinational study, we developed a scoring system incorporating clinical and magnetic resonance imaging characteristics to predict which patients have prostate cancer requiring treatment and which patients can safely forego an invasive prostate biopsy. This model was validated in several other countries.
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- 2022
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14. Second salvage high-dose-rate brachytherapy for radiorecurrent prostate cancer
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Metha Maenhout, Marco van Vulpen, Marinus Moerland, Max Peters, Richard Meijer, Maurice van den Bosch, Paul Nguyen, Steven Frank, and Jochem van der Voort van Zyp
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HDR brachytherapy ,MRI guided ,recurrent prostate cancer ,second salvage treatment ,Medicine - Abstract
Purpose : Salvage treatments for localized radiorecurrent prostate cancer can be performed safely when a focal and image guided approach is used. Due to the low toxicity, the opportunity exists to investigate a second salvage treatment when a second locally recurrent prostate cancer occurs. Here, we describe a second salvage treatment procedure of 4 patients. Material and methods : Four patients with a pathologically proven second local recurrence were treated in an outpatient magnetic resonance imaging (MRI)-guided setting with a single fraction of 19 Gy focal high-dose-rate brachytherapy (HDR-BT). Delineation was performed using choline-PET-CT or a 68Ga-PSMA PET in combination with multiparametric 3 Tesla MRI in all four patients. Toxicity was measured using common toxicity criteria for adverse events (CTCAE) version 4.0. Results : With a median follow-up of 12 months (range, 6-15), there were 2 patients with biochemical recurrence as defined by the Phoenix-definition. There were no patients with grade 3 or more toxicity. In all second salvage HDR-BT treatments, the constraints for rectum, bladder, and urethra were met. Median treatment volume (GTV) was 4.8 cc (range, 1.9-6.6 cc). A median of 8 catheters (range, 6-9) were used, and the median dose to the treatment volume (GTV) was a D95: 19.3 Gy (SD 15.5-19.4 Gy). Conclusions : Second focal salvage MRI-guided HDR-BT for a select group of patients with a second locally recurrent prostate cancer is feasible. There was no grade 3 or more acute toxicity for these four patients.
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- 2017
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15. Evaluation of Outcomes Following Focal Ablative Therapy for Treatment of Localized Clinically Significant Prostate Cancer in Patients >70 Years: A Multi-institute, Multi-energy 15-Year Experience
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David Habashy, Deepika Reddy, Max Peters, Taimur T. Shah, Marieke van Son, Peter van Rossum, Mariana Bertoncelli Tanaka, Emma Cullen, Ryan Engle, Stuart McCracken, Damian Greene, Richard G. Hindley, Amr Emara, Raj Nigam, Clement Orczyk, Iqbal Shergill, Raj Persad, Jaspal Virdi, Caroline M. Moore, Manit Arya, Mathias Winkler, Mark Emberton, Hashim U. Ahmed, and Tim Dudderidge
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Urology - Published
- 2023
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16. MP73-04 EXTERNAL VALIDATION OF A RISK SCORE PREDICTING FAILURE AFTER SALVAGE FOCAL THERAPY FOR LOCALIZED RADIORECURRENT PROSTATE CANCER: AN ANALYSIS FROM THE FOCAL RECURRENT ASSESSMENT AND SALVAGE TREATMENT (FORECAST) TRIAL
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Alexander Light, Max Peters, Abi Kanthabalan, Menelaos Pavlou, Rumana Omar, Sola Adeleke, Francesco Giganti, Chris Brew-Graves, Amr Emara, Athar Haroon, Arash Latifoltojar, Harbir Sidhu, Alex Freeman, Clement Orczyk, Ashok Nikapota, Tim Dudderidge, Richard G. Hindley, Heather Payne, Anita Mitra, Jamshed Bomanji, Mathias Winkler, Gail Horan, Shonit Punwani, Hashim U. Ahmed, and Taimur T. Shah
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Urology - Published
- 2023
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17. MP73-11 MEDIUM TERM OUTCOMES FOLLOWING PRIMARY FOCAL CRYOTHERAPY FOR LOCALISED PROSTATE CANCER IN 323 PATIENTS, A MULTI-INSTITUTIONAL OBSERVATIONAL STUDY OVER 10 YEARS
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Deepika Reddy, Max Peters, Marieke Van Son, Mariana Bertoncelli Tanaka, Philipp Huber, Derek Lomas, Arnas Rakauskas, Saiful Miah, David Eldred-Evans, Emma Cullen, Tim Dudderidge, Stuart McCracken, Damian Greene, Raj Nigam, Neil McCartan, Massimo Valerio, Clement Orczyk, Jaspal Virdi, Manit Arya, Taimur Shah, and Hashim Ahmed
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Urology - Published
- 2023
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18. Comparative cost-effectiveness of focal and total salvage 125 I brachytherapy for recurrent prostate cancer after primary radiotherapy
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Max Peters, Marjanne A. Piena, Lotte M.G. Steuten, Jochem R.N. van der Voort van Zyp, Marinus A. Moerland, and Marco van Vulpen
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brachytherapy ,cost-effectiveness ,focal salvage ,125I ,prostate cancer ,whole-gland salvage ,Medicine - Abstract
Purpose: Focal salvage (FS) iodine 125 ( 125 I) brachytherapy could be an effective treatment for locally radiorecurrent prostate cancer (PCa). Toxicity is often reduced compared to total salvage (TS) while cancer control can be maintained, which could increase cost-effectiveness. The current study estimates the incremental cost per quality-adjusted life year (QALY) of FS compared to TS. Material and methods: A decision analytic Markov model was developed, which compares costs and QALYs associated with FS and TS. A 3-year time horizon was adopted with six month cycles, with a hospital perspective on costs. Probabilities for genitourinary (GU) and gastrointestinal (GI) toxicity and their impact on health-related quality of life (SF-36) were derived from clinical studies in the University Medical Center Utrecht (UMCU). Probabilistic sensitivity analysis, using 10,000 Monte Carlo simulations, was performed to quantify the joint decision uncertainty up to the recommended maximum willingness-to-pay threshold of €80,000/QALY. Results: Focal salvage dominates TS as it results in less severe toxicity and lower treatment costs. Decision uncertainty is small, with a 97-100% probability for FS to be cost-effective compared to TS (€0-€80,000/QALY). Half of the difference in costs between FS and TS was explained by higher treatment costs of TS, the other half by higher incidence of severe toxicity. One-way sensitivity analyses show that model outcomes are most sensitive to utilities and probabilities for severe toxicity. Conclusions : Focal salvage 125 I brachytherapy dominates TS, as it has lower treatment costs and leads to less toxicity in our center. Larger comparative studies with longer follow-up are necessary to assess the exact influence on (biochemical disease free) survival and toxicity.
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- 2016
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19. The Influence of Severe Radiation-Induced Lymphopenia on Overall Survival in Solid Tumors: A Systematic Review and Meta-Analysis
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Tiuri E. Kroese, Joost J.C. Verhoeff, Steven H. Lin, Peter S.N. van Rossum, Max Peters, Ewoud Schuit, Pim J.J. Damen, and Richard van Hillegersberg
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Oncology ,Cancer Research ,medicine.medical_specialty ,Radiation ,business.industry ,medicine.medical_treatment ,Hazard ratio ,Brain tumor ,Cancer ,Subgroup analysis ,medicine.disease ,Radiation therapy ,Pancreatic cancer ,Meta-analysis ,Internal medicine ,Medicine ,Radiology, Nuclear Medicine and imaging ,business ,Lung cancer - Abstract
Purpose Emerging evidence suggests a detrimental prognostic association between radiation-induced lymphopenia (RIL) and pathologic response, progression-free survival, and overall survival (OS) in patients who undergo radiation therapy for cancer. The aim of this study was to systematically review and meta-analyze the prognostic impact of RIL on OS in patients with solid tumors. Methods and Materials PubMed/MEDLINE and Embase were systematically searched. The analysis included intervention and prognostic studies that reported on the prognostic relationship between RIL and survival in patients with solid tumors. An overall pooled adjusted hazard ratio (aHR) was calculated using a random-effects model. Subgroup analyses for different patient-, tumor-, treatment-, and study-related characteristics were performed using meta-regression. Results Pooling of 21 cohorts within 20 eligible studies demonstrated a statistically significant association between OS and grade ≥3 versus grade 0-2 RIL (n = 16; pooled aHR, 1.65; 95% confidence interval [CI], 1.43-1.90) and grade 4 RIL versus grade 0-3 (n = 5; aHR, 1.53; 95% CI, 1.24-1.90). Moderate heterogeneity among aHRs was observed, mostly attributable to overestimated aHRs in 7 studies likely subject to model-overfitting. Subgroup analysis showed significant prognostic impact of grade ≥3 RIL in 4 brain tumor (aHR, 1.63; 95% CI, 1.06-2.51), 4 lung cancer (aHR, 1.52; 95% CI, 1.01-2.29), and 3 pancreatic cancer (aHR, 1.92; 95% CI, 1.10-3.36) cohorts. Conclusions This meta-analysis demonstrates a significant detrimental prognostic association between grade ≥3 lymphopenia and OS in patients receiving radiation therapy for solid tumors. This finding appears consistent for tumors of the brain, thorax, and upper abdomen and provides an imperative to further elucidate the potential survival benefit of lymphopenia-mitigating strategies.
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- 2021
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20. Non-Small-Cell Lung Cancer Patients with a High Predicted Risk of Irradical Resection: Can Chemoradiotherapy Offer Similar Survival?
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Linda M. de Heer, Joost J.C. Verhoeff, W. Hugo van Joolingen, Marnix J.A. Rasing, Max Peters, Mieke J. Aarts, Peter S.N. van Rossum, and Anne S R van Lindert
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medicine.medical_specialty ,education.field_of_study ,Framingham Risk Score ,business.industry ,Population ,medicine.disease ,Surgery ,Oncology ,Cohort ,Propensity score matching ,medicine ,Clinical endpoint ,Stage (cooking) ,Lung cancer ,education ,business ,Chemoradiotherapy - Abstract
Purpose Irradical resection of non-small-cell lung cancer (NSCLC) is a detrimental prognostic factor. Recently, Rasing et al. presented an internationally validated risk score for pre-treatment prediction of irradical resection. We hypothesized that chemoradiation therapy (CRT) could serve as an alternative approach in patients with a high risk score and compared overall survival (OS) outcomes between surgery and CRT. Methods Patients from a population-based cohort with stage IIB–III NSCLC between 2015 and 2018 in The Netherlands were selected. Patients with a ‘Rasing score’ > 4 who underwent surgery were matched with patients who underwent CRT using 1:1 nearest-neighbor propensity score matching. The primary endpoint of OS was compared using a Kaplan–Meier analysis. Results In total, 2582 CRT and 638 surgery patients were eligible. After matching, 523 well-balanced pairs remained. Median OS in the CRT group was 27.5 months, compared with 45.6 months in the surgery group (HR 1.44, 95% CI 1.23–1.70, p p = 0.039). Conclusion In NSCLC patients at high predicted risk of irradical resection, CRT appears to yield inferior survival compared with surgery. Therefore, choosing CRT instead of surgery cannot solely be based on the Rasing score. Since patients receiving an R1–2 resection do have detrimental outcomes compared with primary CRT, the treatment decision should be based on additional information, such as imaging features, comorbidities, patient preference, and the surgeon’s confidence in achieving an R0 resection.
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- 2021
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21. Severe lymphopenia acquired during chemoradiotherapy for esophageal cancer: Incidence and external validation of a prediction model
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Steven H. Lin, Imo E. Hoefer, Radhe Mohan, Nadia Haj Mohammad, Stella Mook, Tiuri E. Kroese, Richard van Hillegersberg, Saskia Haitjema, Max Peters, Jasvir Jairam, Peter S.N. van Rossum, and Jelle P. Ruurda
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medicine.medical_specialty ,Esophageal Neoplasms ,Gastroenterology ,Carboplatin ,chemistry.chemical_compound ,Lymphopenia ,Internal medicine ,Antineoplastic Combined Chemotherapy Protocols ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,business.industry ,Incidence ,Incidence (epidemiology) ,Cancer ,Common Terminology Criteria for Adverse Events ,Chemoradiotherapy ,Hematology ,Esophageal cancer ,medicine.disease ,Confidence interval ,Regimen ,Oncology ,chemistry ,business - Abstract
BACKGROUND The incidence of grade 4 lymphopenia in patients treated with chemoradiotherapy (CRT) according to Chemoradiotherapy for Oesophageal cancer followed by Surgery Study (CROSS) regimen is unclear. The primary aim was to determine the incidence of grade 4 lymphopenia during CROSS for esophageal cancer. Secondary aims were to externally validate a prediction model for grade 4 lymphopenia and compare overall survival between patients with and without grade 4 lymphopenia. METHODS Patients who underwent CRT for esophageal cancer between 2014 and 2019 were eligible for inclusion. Patients with a planned radiation dose of 41.4 Gy (CROSS) or 50.4 Gy ("extended-CROSS") and concurrent carboplatin and paclitaxel were included. The primary outcome was the incidence of grade 4 lymphopenia during CRT defined according to Common Terminology Criteria for Adverse Events version 5.0 (i.e. lymphocyte count nadir
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- 2021
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22. Phase II study of definitive chemoradiation for locally advanced squamous cell cancer of the vulva
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Ina M. Jürgenliemk-Schulz, Elsbieta M. van der Steen-Banasik, Remi A. Nout, Jannet C. Beukema, Max Peters, Baukelien van Triest, Petronella O. Witteveen, Carien L. Creutzberg, Joanne A. de Hullu, Ludy C.H.W. Lutgens, Jacobus van der Velden, Henrike Westerveld, Marnix J.A. Rasing, An Snyers, Radiotherapy, Obstetrics and Gynaecology, CCA -Cancer Center Amsterdam, CCA - Cancer Treatment and Quality of Life, Targeted Gynaecologic Oncology (TARGON), and Guided Treatment in Optimal Selected Cancer Patients (GUTS)
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Adult ,medicine.medical_specialty ,CARCINOMA ,Osteoradionecrosis ,MODULATED RADIATION-THERAPY ,medicine.medical_treatment ,EUROPEAN-ORGANIZATION ,Phases of clinical research ,ORAL FLUOROPYRIMIDINE CARBAMATE ,PREOPERATIVE CHEMORADIATION ,Definitive chemoradiotherapy ,Gastroenterology ,Capecitabine ,All institutes and research themes of the Radboud University Medical Center ,SDG 3 - Good Health and Well-being ,QUALITY-OF-LIFE ,Internal medicine ,medicine ,Humans ,Prospective Studies ,Progression-free survival ,Aged ,Aged, 80 and over ,Salvage Therapy ,Chemotherapy ,Toxicity ,Vulvar cancer ,Vulvar Neoplasms ,business.industry ,Obstetrics and Gynecology ,Chemoradiotherapy ,CHEMOTHERAPY ,Middle Aged ,medicine.disease ,Women's cancers Radboud Institute for Health Sciences [Radboudumc 17] ,Radiation therapy ,TOXICITY CRITERIA ,Oncology ,Carcinoma, Squamous Cell ,Locally advanced ,Female ,Organ-sparing ,business ,RADIOTHERAPY ,medicine.drug - Abstract
Objective. To evaluate feasibility of chemoradiation as alternative for extensive surgery in patients with locally advanced vulvar cancer and to report on locoregional control, toxicity and survival. Methods. In a multicenter, prospective phase II trial patients with locally advanced vulvar cancer were treated with locoregional radiotherapy combined with sensitizing chemotherapy (capecitabine). Treatment feasibility, percentage locoregional control, survival and toxicity were evaluated. Results. 52 patients with mainly T2/T3 disease were treated according to the study protocol in 10 centers in the Netherlands from 2007 to 2019. Full dose radiotherapy (tumor dose of 64.8Gy) was delivered in 92% and full dose capecitabine in 69% of patients. Most prevalent acute >_ grade 3 toxicities were regarding skin/ mucosa and pain (54% and 37%). Late >_grade 3 toxicity was reported for skin/mucosa (10%), fibrosis (4%), GI incontinence (4%) and stress fracture or osteoradionecrosis (4%). Twelve weeks after treatment, local clinical complete response (cCR) and regional control (RC) rates were 62% and 75%, respectively. After 2 years, local cCR persisted in 22 patients (42%) and RC was 58%. Thirty patients (58%) had no evidence of disease at end of follow-up (median 35 months). In 9 patients (17%) extensive surgery with stoma formation was needed. Progression free survival was 58%, 51% and 45% and overall survival was 76%, 66%, 52% at 1,2, and 5 years. Conclusions. Definitive capecitabine-based chemoradiation as alternative for extensive surgery is feasible in locally advanced vulvar cancer and results in considerable locoregional control with acceptable survival rates with manageable acute and late toxicity. (c) 2021 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY-NC-ND license (http:// creativecommons.org/licenses/by-nc-nd/4.0/).
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- 2021
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23. [Experiences with MRI-guided brachytherapy for radiorecurrent prostate cancer]
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Marnix J A, Rasing, Max, Peters, M A, Moerland, Juus L, Noteboom, Jan J, Lagendijk, and Jochem R N, van der Voort van Zyp
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Male ,Brachytherapy ,Androgens ,Humans ,Prostatic Neoplasms ,Androgen Antagonists ,Prostate-Specific Antigen ,Neoplasm Recurrence, Local ,Magnetic Resonance Imaging - Abstract
MR-guided brachytherapy offers a focal salvage treatment for the local recurrence in case of isolated locally recurrent prostate cancer in the prostate and/or seminal vesicles after primary radiotherapy. By focusing on only the local recurrence instead of the whole prostate, chances of additional toxicity of the bladder, urethra and rectum can be minimized. In almost all patients, the treatment leads to a good initial treatment response that persists in about half of patients, while others will develop progressive disease later on. For selecting suitable patients, factors such as preexistent urinary- and bowel complaints, localization and size of the recurrence, PSA doubling time and time between primary radiotherapy and development of the recurrence are relevant. MR-guided brachytherapy can provide a suitable salvage strategy, with the aims of deferring androgen deprivation therapy and a chance of cure.
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- 2022
24. Functionele en oncologische uitkomsten van salvage cryochirurgie voor lokaal recidief prostaatcarcinoom na radiotherapie
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Siebren Dijkstra, Max Peters, Diederik M. Somford, Siberyn T. Nuijens, Henk Vergunst, and Leonie Exterkate
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Gynecology ,medicine.medical_specialty ,business.industry ,Urology ,medicine ,business - Abstract
SamenvattingHet doel van deze studie was de oncologische en functionele uitkomsten van salvage cryochirurgie (sCC) te beoordelen bij lokaal recidief prostaatcarcinoom na radiotherapie (rrPCA). De studie werd uitgevoerd bij 169 patiënten. Er vond retrospectieve analyse plaats van recidiefvrije overleving (BRFS), algehele overleving, metastasevrije overleving, androgeendeprivatietherapie (ADT)-vrije overleving, functionele uitkomsten en complicaties. De mediane follow-up was 36 maanden (IQR = 18–66). BRFS na vijf en acht jaar was 52% (95%-BI = 43–62) en 45% (95%-BI = 35–57), respectievelijk. PSA bij initiële diagnose, de initiële behandeling, het interval tussen de primaire behandeling en SCS, leeftijd bij SCS en post-SCS PSA-nadir waren significante voorspellers van BRFS. De vijf-jaars ADT-vrije overleving was 70% (95%-BI = 62–79). Complicaties van graad III of hoger traden op bij 1,2% van de patiënten. Bij 19% en 92% van de patiënten trad new onset urine-incontinentie respectievelijk erectiele disfunctie op, bij 6,5% persisterende urinaire fistels en bij 12% desobstructie. SCS heeft aanvaardbare oncologische resultaten, maar kan gepaard gaan met ernstige complicaties (urine-incontinentie, stenose en fistels).
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- 2021
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25. Development and internal validation of multivariable prediction models for biochemical failure after MRI-guided focal salvage high-dose-rate brachytherapy for radiorecurrent prostate cancer
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Sandrine M.G. van de Pol, Wietse S.C. Eppinga, Hans C.J. de Boer, Marieke J. van Son, Jochem R.N. van der Voort van Zyp, T. Willigenburg, Max Peters, Jan J W Lagendijk, and Marinus A. Moerland
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medicine.medical_specialty ,medicine.medical_treatment ,Brachytherapy ,R895-920 ,Urology ,Medical physics. Medical radiology. Nuclear medicine ,Prostate cancer ,Prediction model ,Recurrence ,Medicine ,Radiology, Nuclear Medicine and imaging ,Original Research Article ,Focal salvage high-dose-rate brachytherapy ,Prospective cohort study ,RC254-282 ,Radiotherapy ,business.industry ,Multivariable calculus ,food and beverages ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,Nomogram ,medicine.disease ,High-Dose Rate Brachytherapy ,Radiation therapy ,Oncology ,business ,Predictive modelling - Abstract
Highlights • Biochemical failure rates after focal salvage high-dose-rate brachytherapy are high. • Evidence on predictors for failure is limited to whole-gland salvage radiotherapy. • Two prediction models for biochemical failure were developed and internally validated. • Based on pre- and post-salvage characteristics we can identify high-risk patients. • These models can be used for patient counselling at baseline and during follow-up., Background and purpose Magnetic resonance-guided focal salvage high-dose-rate brachytherapy (FS-HDR-BT) for radiorecurrent prostate cancer (PCa) shows low toxicity rates. However, biochemical failure (BF) after treatment occurs frequently. We developed two prediction models for BF (Phoenix definition) with the aim of enhancing patient counselling before FS-HDR-BT and during follow-up. Materials and methods A prospective cohort of 150 radiorecurrent PCa patients treated with FS-HDR-BT between 2013 and 2020 was used for model development and internal validation. Multivariable Cox Proportional Hazards regression was applied. For model 1, only pre-salvage variables were included as candidate predictors. For model 2, additional (post-)salvage characteristics were tested. After calibration, nomograms and webtools were constructed. Finally, three risk groups were identified. Results Sixty-one patients (41%) experienced BF. At baseline (model 1), age, gross tumour volume, pre-salvage PSA, and pre-salvage PSA doubling time (PSADT) were predictive of BF. During follow-up (model 2), age, pre-salvage PSA and PSADT, seminal vesicle involvement, post-salvage time to PSA nadir, and percentage PSA reduction were predictive of BF. The adjusted C-statistics were 0.73 (95% CI: 0.66–0.81) and 0.84 (95% CI: 0.78–0.90), respectively, with acceptable calibration. Estimated 2-year biochemical disease-free survival for the low-, intermediate-, and high-risk groups were 84%, 70%, and 31% (model 1), and 100%, 71%, and 5% (model 2). Conclusion Two models are provided for prediction of BF in patients with radiorecurrent PCa treated with FS-HDR-BT. Based on pre- and post-salvage characteristics, we are able to identify patients with a high risk of BF. These findings can aid patient counselling for FS-HDR-BT.
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- 2021
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26. Progression-free survival in patients with 68Ga-PSMA-PET-directed SBRT for lymph node oligometastases
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Martijn Intven, Max Peters, Ina M. Jürgenliemk-Schulz, Wietse S.C. Eppinga, Petra S. Kroon, Anita M. Werensteijn-Honingh, and Anne F J Wevers
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Target lesion ,Oncology ,medicine.medical_specialty ,Framingham Risk Score ,business.industry ,Hematology ,General Medicine ,medicine.disease ,Androgen deprivation therapy ,Prostate cancer ,medicine.anatomical_structure ,Interquartile range ,Internal medicine ,medicine ,Clinical endpoint ,Radiology, Nuclear Medicine and imaging ,Progression-free survival ,business ,Lymph node - Abstract
Background Prostate cancer oligometastatic disease can be treated using stereotactic body radiotherapy (SBRT) in order to postpone start of systemic treatments such as androgen deprivation therapy (ADT). 68Ga-PSMA-PET/CT imaging allows for diagnosis of oligometastases at lower PSA values. We analysed a cohort of patients with prostate cancer lymph node oligometastases detected on PSMA-PET/CT. Materials and methods Ninety patients with metachronous oligometastatic prostate cancer received SBRT for 1-3 lymph node metastases diagnosed on 68Ga-PSMA-PET/CT. The primary end point was progression free survival (PFS), with disease progression defined as occurrence of either target lesion progression, new metastatic lesion or biochemical progression. Secondary outcomes were biochemical PFS (BPFS), ADT-free survival (ADT-FS), toxicity and quality of life (QoL). Baseline patient characteristics were tested for association with PFS and a preliminary risk score was created. Results Median follow-up was 21 months (interquartile range 10-31 months). Median PFS and BPFS were 16 and 21 months, respectively. Median ADT-FS was not reached (73% (95%-CI 62-86%) at 24 months). In multivariable analysis, younger age, higher PSA prior to SBRT and extrapelvic location were associated with shorter PFS. Grade 1 fatigue was the most predominant acute toxicity (34%). Highest grade toxicity was grade 2 for acute and late events. QoL analysis showed mild, transient increase in fatigue at 1-4 weeks after SBRT. Conclusion A median PFS of 16 months was attained after SBRT for patients with PSMA-PET positive oligometastatic lymph nodes from prostate cancer. Higher pre-SBRT PSA, younger age and extrapelvic location were found to be predictors of shorter PFS.
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- 2021
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27. Conventional radical versus focal treatment for localised prostate cancer: a propensity score weighted comparison of 6-year tumour control
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Deepika Reddy, Raj Persad, Manit Arya, R. Hindley, Mark Emberton, Raj Nigam, M. Winkler, Jochem R. N. van der Voort van Zyp, Hashim U. Ahmed, A. Emara, Clement Orczyk, Caroline M. Moore, Taimur T. Shah, Tim Dudderidge, Stephen Robinson, Stephen Mangar, Feargus Hosking-Jervis, Marieke J. van Son, Stuart McCracken, Alison Falconer, Jaspal Virdi, Henry Lewi, Jan J. W. Lagendijk, and Max Peters
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Cancer Research ,medicine.medical_specialty ,Prostatectomy ,business.industry ,Urology ,medicine.medical_treatment ,Brachytherapy ,030232 urology & nephrology ,Cryotherapy ,medicine.disease ,Androgen deprivation therapy ,Radiation therapy ,03 medical and health sciences ,Prostate cancer ,0302 clinical medicine ,Oncology ,030220 oncology & carcinogenesis ,Propensity score matching ,medicine ,business ,Watchful waiting - Abstract
For localised prostate cancer, focal therapy offers an organ-sparing alternative to radical treatments (radiotherapy or prostatectomy). Currently, there is no randomised comparative effectiveness data evaluating cancer control of both strategies. Following the eligibility criteria PSA
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- 2021
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28. Prophylactic cranial irradiation in patients with small cell lung cancer in The Netherlands: A population-based study
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Mieke J. Aarts, Mathijs L. Tomassen, Anne S R van Lindert, Joost J.C. Verhoeff, Dirk De Ruysscher, Peter S.N. van Rossum, Max Peters, RS: GROW - R3 - Innovative Cancer Diagnostics & Therapy, and Radiotherapie
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medicine.medical_specialty ,Population ,R895-920 ,Population-based ,Article ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,Medical physics. Medical radiology. Nuclear medicine ,0302 clinical medicine ,Internal medicine ,Medicine ,Radiology, Nuclear Medicine and imaging ,cardiovascular diseases ,education ,Lung cancer ,Survey ,RC254-282 ,education.field_of_study ,Performance status ,Small cell lung cancer ,business.industry ,Incidence (epidemiology) ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,medicine.disease ,humanities ,Cancer registry ,respiratory tract diseases ,surgical procedures, operative ,Oncology ,030220 oncology & carcinogenesis ,Conventional PCI ,Prophylactic cranial irradiation ,business ,therapeutics ,Cohort study ,MRI - Abstract
Highlights • Prophylactic cranial irradiation (PCI) use declined in The Netherlands. • Independent predictors for prescription of PCI were identified. • An alarming increase of practice variation was observed. • Alternative MRI surveillance is not strictly adhered to., Introduction Controversy has arisen regarding the benefit of prophylactic cranial irradiation (PCI) in patients with small cell lung cancer (SCLC), particularly since the 2017 Takahashi trial publication that supports MRI surveillance in extensive-stage (ES-)SCLC. The primary aim of this study was to assess trends and determinants in PCI use over the years 2010–2018. A secondary aim was to determine contemporary practice considerations among radiation oncologists (ROs). Methods A nationwide population-based cohort study was conducted using the Netherlands Cancer Registry data on all newly diagnosed SCLC patients (2010–2018). The change in PCI frequency over the years and determinants for PCI were analyzed using logistic regression models. Second, an online survey was performed among Dutch lung cancer ROs in 2020. Results Among 10,264 eligible patients, 4,894 (47%) received PCI. Compared to 2010–2014, PCI use significantly decreased in 2017–2018 in ES-SCLC (OR 0.68, 95%CI 0.60–0.77) and LS-SCLC (OR 0.56, 95%CI 0.47–0.67). Incidence year, age, performance status, and thoracic radiotherapy were independent determinants for PCI. Among 41 survey participants, PCI was recommended always/sometimes/never by 22%/71%/7% in ES-SCLC and 54%/44%/2% in LS-SCLC. For ES-SCLC and LS-SCLC, 63% and 25% of ROs, respectively, confirmed influence of the Takahashi trial on PCI recommendations. Denial of such influence was associated with insufficient institutional MRI capacity. Conclusions A significant declining trend of PCI use in both ES-SCLC and LS-SCLC was observed in The Netherlands since 2017. The Takahashi trial seems an explanation for this trend even in LS-SCLC, with differential influence of the trial depending on institutional MRI capacity. An alarming increase in practice variation regarding PCI was found which stresses the importance of ongoing trials.
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- 2021
29. Evaluation of daily online contour adaptation by radiation therapists for prostate cancer treatment on an MRI-guided linear accelerator
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D. De Muinck Keizer, Max Peters, Hans C.J. de Boer, Jan J W Lagendijk, Jochem R.N. van der Voort van Zyp, An Claes, and T. Willigenburg
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Radiation therapists ,genetic structures ,Observer (quantum physics) ,Online contour adaptation ,education ,R895-920 ,Adaptation (eye) ,Article ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,Prostate cancer ,Medical physics. Medical radiology. Nuclear medicine ,0302 clinical medicine ,Relative Volume ,Interquartile range ,Histogram ,medicine ,Radiology, Nuclear Medicine and imaging ,RC254-282 ,MR-Linac ,medicine.diagnostic_test ,business.industry ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,Magnetic resonance imaging ,Adapt-to-shape ,medicine.disease ,Oncology ,030220 oncology & carcinogenesis ,MRI-guided radiotherapy ,business ,Nuclear medicine ,Mri guided - Abstract
Highlights • Adapt-to-Shape (ATS) workflows enable high-precision MR-guided radiotherapy. • Online, manual contour adaptation is a time-consuming step in the ATS workflow. • Trained radiation therapists adapt contours for prostate cancer treatment. • CTV contours by radiation therapists are well-suited for MR-Linac prostate cancer treatment., Background and purpose Magnetic resonance (MR)-guided linear accelerator (MR-Linac) systems have changed radiotherapy workflows. The addition of daily online contour adaptation allows for higher precision treatment, but also increases the workload of those involved. We train radiation therapists (RTTs) to perform daily online contour adaptation for MR-Linac treatment of prostate cancer (PCa) patients. The purpose of this study was to evaluate these prostate contours by performing an interfraction and interobserver analysis. Materials and methods Clinical target volume (CTV) contours generated online by RTTs from 30 low-intermediate risk PCa patients, treated with 5x7.25 Gy, were used. Two physicians (Observers) judged the RTTs contours and performed adaptations when necessary. Interfraction relative volume differences between the first and the subsequent fractions were calculated for the RTTs, Observer 1, and Observer 2. Additionally, interobserver dice’s similarity coefficient (DSC) for fraction 2–5 was calculated with the RTTs- and physician-adapted contours. Clinical acceptability of the RTTs contours was judged by a third observer. Results Mean (SD) online contour adaptation time was 12.6 (±3.8) minutes and overall median (interquartile range [IQR]) relative volume difference was 9.3% (4.4–13.0). Adaptations by the observers were mostly performed at the apex and base of the prostate. Median (IQR) interobserver DSC between RTTs and Observer 1, RTTs and Observer 2, and Observer 1 and 2 was 0.99 (0.98–1.00), 1.00 (0.98–1.00), and 1.00 (0.99–1.00), respectively. Contours were acceptable for clinical use in 113 (94.2%) fractions. Dose-volume histogram (DVH) analysis showed significant CTV underdosage for one of the seven identified outliers. Conclusion Daily online contour adaptation by RTTs is clinically feasible for MR-Linac treatment of PCa.
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- 2021
30. Determining the safety of ultrafocal salvage high-dose-rate brachytherapy for radiorecurrent prostate cancer: A toxicity assessment of 150 patients
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Jochem R.N. van der Voort van Zyp, Marinus A. Moerland, Sandrine M.G. van de Pol, Marieke van Son, Wietse S.C. Eppinga, Max Peters, and Jan J W Lagendijk
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medicine.medical_specialty ,CTCAE 4.0 ,medicine.medical_treatment ,Brachytherapy ,Urology ,R895-920 ,Logistic regression ,Focal salvage therapy ,Article ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,Prostate cancer ,Medical physics. Medical radiology. Nuclear medicine ,0302 clinical medicine ,parasitic diseases ,Local recurrence ,Medicine ,Radiology, Nuclear Medicine and imaging ,RC254-282 ,Toxicity ,business.industry ,Genitourinary system ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,Common Terminology Criteria for Adverse Events ,medicine.disease ,High-Dose Rate Brachytherapy ,Erectile dysfunction ,Oncology ,030220 oncology & carcinogenesis ,business - Abstract
Highlights • Severe toxicity is as low as 3% (GU), 0% (GI) and 15% (ED). • Lower impact is predicted for patients with favorable function at baseline. • Lower dose to the urethra (D10%, Background and purpose Local re-treatment of radiorecurrent prostate cancer is potentially curative. However, the increased risk of severe toxicity may outweigh the opportunity of cancer control. This study aims to evaluate treatment-related toxicity from ultrafocal salvage high-dose-rate brachytherapy (HDR-BT) and to investigate potential risk factors. Materials and methods Toxicity data from 150 treated patients (July 2013–November 2019) was collected from a prospective registry. The treatment aim was to deliver a single dose of 19 Gy to the recurrent lesion as identified on multiparametric MRI and PET-CT. Treating physicians graded genitourinary (GU) and gastro-intestinal (GI) toxicity and erectile dysfunction (ED) using the Common Terminology Criteria for Adverse Events (CTCAE) 4.0, at baseline and during follow-up. Domains with substantial (≥10%) new-onset grade ≥ 2 toxicity were further evaluated using mixed effects logistic regression to find potential risk factors. Results Median follow-up time was 20 months (IQR 12–31). Over time, new-onset grade 2 and 3 toxicity was recorded in 41% and 3% (GU), 5% and 0% (GI) and 22% and 15% (ED). While GI toxicity remained stably low, grade ≥ 2 GU toxicity and ED were seen twice as frequent in the late phase (>3 months after treatment). Significant risk factors for grade ≥ 2 toxicity were baseline GU toxicity (grade ≥ 2), baseline ED (grade ≥ 2), IPSS (cut-off ≥ 14) and urethral dose (D10%, cut-off ≥ 17 Gy). Conclusion Ultrafocal salvage HDR-BT is a safe re-treatment option, especially in patients with a favorable symptom profile at baseline. Adherence to urethral dose constraints is important to avoid GU toxicity.
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- 2021
31. Focal therapy compared to radical prostatectomy for non-metastatic prostate cancer: a propensity score-matched study
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Feargus Hosking-Jervis, Henry Lewi, Chris Ogden, Max Peters, Suks Minhas, Daniel Ball, Deepika Reddy, Saiful Miah, Hashim U. Ahmed, Damian Greene, Raj Persad, Naveed Afzal, Enrique Gómez Gómez, Caroline M. Moore, M. Valerio, Peter S.N. van Rossum, Stuart McCracken, David Eldred Evans, Neil McCartan, Richard Hindley, Mathias Winkler, Mark Emberton, Taimur T. Shah, Na Hyun Kim, Raj Nigam, Stephanie Guillaumier, Jaspal Virdi, A. Emara, Tim Dudderidge, Manit Arya, and Marieke J. van Son
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Male ,Cancer Research ,medicine.medical_specialty ,Urology ,medicine.medical_treatment ,030232 urology & nephrology ,Cryotherapy ,Systemic therapy ,03 medical and health sciences ,Prostate cancer ,0302 clinical medicine ,medicine ,Humans ,Prospective Studies ,Propensity Score ,Aged ,Prostatectomy ,business.industry ,Prostatic Neoplasms ,Cancer ,Middle Aged ,Prognosis ,medicine.disease ,Survival Rate ,Focal therapy ,Oncology ,Case-Control Studies ,030220 oncology & carcinogenesis ,Propensity score matching ,Outcomes research ,business ,Follow-Up Studies - Abstract
Focal therapy (FT) ablates areas of prostate cancer rather than treating the whole gland. We compared oncological outcomes of FT to radical prostatectomy (RP). Using prospective multicentre databases of 761 FT and 572 RP cases (November/2005-September/2018), patients with PSA
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- 2021
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32. Nomogram predicting the probability of spontaneous stone passage in patients presenting with acute ureteric colic
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Chuanyu, Gao, Max, Peters, Piet, Kurver, Thineskrishna, Anbarasan, Keerthanaa, Jayaraajan, Todd, Manning, Sophia, Cashman, Arjun, Nambiar, Marcus, Cumberbatch, Benjamin W, Lamb, Robert, Pickard, Paul, Erotocritou, Daron, Smith, Veeru, Kasivisvanathan, Taimur T, Shah, and M, Young
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Urology - Abstract
To develop a nomogram that could predict spontaneous stone passage (SSP) in patients presenting with acute ureteric colic who are suitable for conservative management.A 2517 patient dataset was utilised from an international multi-centre cohort study (MIMIC, A Multi-centre Cohort Study Evaluating the role of Inflammatory Markers In Patients Presenting with Acute Ureteric Colic) of patients presenting with acute ureteric colic across 71 secondary care hospitals in the United Kingdom, Ireland, Australia, and New Zealand. Inclusion criteria mandated a non-contrast CT-KUB.SSP was defined as the 'absence of the need for intervention'. The model was developed using logistic regression and backwards selection (to achieve lowest AIC) in a subset from 2009-2015 (n=1728) and temporally validated on a subset from 2016-2017 (n=789).Of the 2517 patients, 1874 had SSP (74.5%). Mean age (±[SD]) was 47 (±14.7) years and 1892 were male (75.2%). At the end of the modelling process, gender: male (OR 0.8, 95%CI 0.64-1.01, p=0.07), neutrophil count (OR 1.03, 95%CI 1.00-1.06, p = 0.08), hydronephrosis (OR 0.79, 95%CI 0.59-1.05, p=0.1), hydroureter (OR 1.3, 95%CI 0.97-1.75, p =0.08), stone size5-7mm (OR 0.2, 95%CI 0.16-0.25, p0.0001), stone size7mm (OR 0.11, 95%CI 0.08-0.15, p0.001), middle ureter stone position (OR 0.59, 95%CI 0.43-0.81, p=0.001), upper ureter stone position (OR 0.31, 95%CI 0.25-0.39, p0.001) ), medical expulsive therapy use (OR 1.36, 95%CI 1.1 - 1.67, p = 0.001), oral NSAID use (OR 1.3, 95%CI 0.99 - 1.71, p=0.06), and rectal NSAID use (OR1.17, 95%CI 0.9 - 1.53, p=0.24) remained. Concordance-statistic (C-statistic) was 0.77 (95%CI 0.75 - 0.80) and a nomogram was developed based on these.The presented nomogram is available to use as an online calculator via www.BURSTurology.com and could allow clinicians and patients to make a more informed decision on pursuing conservative management versus early intervention.
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- 2022
33. MP55-06 FOCAL ABLATIVE SALVAGE THERAPY FOR RADIO-RECURRENT PROSTATE CANCER: 6 YEAR ONCOLOGICAL AND SAFETY OUTCOMES
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Deepika Reddy, Max Peters, Taimur Shah, Marieke van Son, Mariana Tanaka Bertoncelli, Philipp Huber, Derek Lomas, Arnas Rakauskas, Saiful Miah, David Eldred-Evans, Stephanie Guillaumier, Feargus Hosking-Jervis, Ryan Engle, Tim Dudderidge, Richard Hindley, Amr Emara, Raj Nigam, Neil McCartan, Massimo Valerio, Naveed Afzal, Henry Lewi, Clement Orczyk, Chris Ogden, Iqbal Shergill, Raj Persad, Jaspal Virdi, Stuart McCracken, Damian Greene, Caroline Moore, Manit Arya, Mathias Winkler, Mark Emberton, and Hashim Ahmed
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Urology - Published
- 2022
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34. MP55-01 CANCER CONTROL OUTCOMES FOLLOWING FOCAL THERAPY USING HIFU IN 1,379 MEN WITH NON-METASTATIC PROSTATE CANCER: A MULTI-INSTITUTE 15-YEAR EXPERIENCE
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Deepika Reddy, Max Peters, Taimur Shah, Marieke van Son, Mariana Tanaka Bertoncelli, Philipp Huber, Derek Lomas, Arnas Rakauskas, Saiful Miah, David Eldred-Evans, Stephanie Guillaumier, Feargus Hosking-Jervis, Ryan Engle, Tim Dudderidge, Richard Hindley, Amr Emara, Raj Nigam, Neil McCartan, Massimo Valerio, Naveed Afzal, Henry Lewi, Clement Orczyk, Chris Ogden, Iqbal Shergill, Raj Persad, Jaspal Virdi, Caroline Moore, Manit Arya, Mathias Winkler, Mark Emberton, and Hashim Ahmed
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Urology - Published
- 2022
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35. PD17-01 DERIVATION AND EXTERNAL VALIDATION OF A RAPID RISK SCORE FOR PREDICTING CLINICALLY SIGNIFICANT PROSTATE CANCER IN MEN WITH AN MRI VISIBLE LESION: A MULTINATIONAL COHORT STUDY
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Max Peters, David Eldred-Evans, Piet Kurver, Ugo Giovanni Falagario, Martin J. Connor, Joost J.C. Verhoeff, Giuseppe Carrieri, Luigi Cormio, Pekka Taimen, Hannu J Aronen, Juha Knaapila, Ileana Montoya Perez, Otto Ettala, Armando Stabile, Giorgio Gandaglia, Nicola Fossati, Alberto Martini, Vito Cucchiara, Alberto Briganti, Anna Lantz, Wolfgang Picker, Erik Haug, Tobias Nordström, Mariana Bertoncelli Tanaka, Feargus Hosking-Jervis, Deepika Reddy, Edward Bass, Peter S.N. van Rossum, Suchita Joshi, Elizabeth Pegers, Kathie Wong, Henry Tam, David Hrouda, Stuart McCraken, Mathias Winkler, Stephen Gordon, Hasan Qazi, Peter J. Boström, Ivan Jambor, and Hashim U. Ahmed
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Urology - Published
- 2022
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36. PD-0745 Outcomes & predictors of progression: SBRT for lymph node oligorecurrent prostate cancer on PSMA-PET
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Wietse S.C. Eppinga, A. Wevers, Anita M. Werensteijn-Honingh, Petra S. Kroon, Max Peters, Ina M. Jürgenliemk-Schulz, and Martijn Intven
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Oncology ,medicine.medical_specialty ,business.industry ,Hematology ,medicine.disease ,Prostate cancer ,medicine.anatomical_structure ,Psma pet ,Internal medicine ,medicine ,Radiology, Nuclear Medicine and imaging ,business ,Lymph node - Published
- 2021
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37. Functional and oncological outcomes of salvage cryosurgery for radiorecurrent prostate cancer
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Leonie Exterkate, Max Peters, Henk Vergunst, and Diederik M. Somford
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Male ,medicine.medical_specialty ,Urology ,medicine.medical_treatment ,030232 urology & nephrology ,Urinary incontinence ,Cryosurgery ,03 medical and health sciences ,Prostate cancer ,0302 clinical medicine ,Interquartile range ,medicine ,Humans ,Survival analysis ,Aged ,Retrospective Studies ,Salvage Therapy ,Proportional hazards model ,business.industry ,Prostatic Neoplasms ,Middle Aged ,medicine.disease ,Confidence interval ,Treatment Outcome ,Erectile dysfunction ,030220 oncology & carcinogenesis ,Neoplasm Recurrence, Local ,medicine.symptom ,business - Abstract
Objectives To evaluate the oncological and functional outcomes of salvage cryosurgery (SCS) for radiorecurrent prostate cancer (rrPCa). Patients and methods A total of 169 consecutive patients with biopsy confirmed rrPCa were retrospectively analysed. All patients underwent SCS in a single referral centre between 2006 and 2018. The primary outcome was biochemical recurrence-free survival (BRFS) according to the Phoenix definition (prostate-specific antigen [PSA] nadir +2 ng/mL). The secondary outcomes were overall survival, BRFS defined as a PSA level of >0.5 ng/mL, metastasis-free survival, androgen-deprivation therapy (ADT)-free survival, and functional outcomes. Complications were classified according to the Clavien-Dindo system. PSA was measured every 3-6 months postoperatively. Functional outcomes were scored as reported by patients at outpatient visits. Kaplan-Meier survival analysis and uni- and multivariable Cox regression were performed. Results The median (interquartile range) follow-up was 36 (18-66) months. The BRFS after 5 and 8 years was 52% (95% confidence interval [CI] 43-62%) and 45% (95% CI 35-57%), respectively. At multivariable analysis PSA level at initial diagnosis, initial treatment, interval between primary treatment and SCS, age at SCS, and post-SCS PSA nadir were significant factors for BRFS. The 5-year ADT-free survival was 70% (95% CI 62-79%). Clavien-Dindo Grade ≥III complications occurred in 1.2% (two/169) of patients. In all, 19% (29/156) of patients had new-onset urinary incontinence defined as >1 pad/24 h and 92% (57/62) of patients had new-onset erectile dysfunction. Persistent urinary fistula occurred in 6.5% (11/169) of patients. Conclusions The present study shows acceptable oncological outcomes of SCS considering the salvage character of the treatment. The occurrence of serious complications such as urinary incontinence and fistula should not be underestimated.
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- 2020
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38. Long-term outcomes of two ablation techniques for treatment of radio-recurrent prostate cancer
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Marieke J. van Son, Joseph L. Chin, Jochem R.N. van der Voort van Zyp, Arnon Lavi, Max Peters, Piet Kurver, Shiva M. Nair, and Joost J.C. Verhoeff
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Biochemical recurrence ,Cancer Research ,medicine.medical_specialty ,business.industry ,Urology ,medicine.medical_treatment ,030232 urology & nephrology ,Salvage therapy ,Cryotherapy ,medicine.disease ,03 medical and health sciences ,Prostate cancer ,0302 clinical medicine ,medicine.anatomical_structure ,Oncology ,Prostate ,030220 oncology & carcinogenesis ,Cohort ,medicine ,Cumulative incidence ,business ,Survival analysis - Abstract
In men with recurrence of prostate cancer post radiation therapy, further treatment remains a challenge. The default salvage option of androgen-deprivation therapy (ADT) has adverse effects. Alternatively, selected men may be offered salvage therapy to the prostate. Herein, we present long-term oncological outcomes of two whole-gland ablation techniques, cryotherapy (sCT) and high-intensity-focused ultrasound (sHIFU). Men undergoing sCT (1995–2004) and sHIFU (2006–2018) at Western University were identified. Oncological endpoints included biochemical recurrence (BCR), ADT initiation, metastases, castration resistance (CRPC), and prostate cancer-specific mortality (PCSM). Survival analysis with competing risks of mortality was performed. Multivariable analysis was performed using Fine and Gray regression. A total of 187 men underwent sCT and 113 sHIFU. Mean (SD) age of the entire cohort was 69.9 (5.9 years), median pre-radiation PSA 9.6 ng/ml (IQR 6.1–15.2), and pre-salvage PSA 4.5 ng/ml (IQR 2.8–7.0). Median total follow-up was 116 months (IQR 67.5–173.8). A total of 170 (57.6%) developed BCR, 68 (23.4%) metastases, 143 (49.3%) were started on ADT, 58 (20.1%) developed CRPC, and 162 (56%) patients died of which 59 (36.4%) were of prostate cancer. On multivariable analysis, sHIFU (HR 1.65, 95% CI 1.15–2.36, p = 0.006) and pre-salvage PSA (HR 1.09, 95% CI 1.06–1.13, p
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- 2020
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39. MRI-Guided Ultrafocal Salvage High-Dose-Rate Brachytherapy for Localized Radiorecurrent Prostate Cancer: Updated Results of 50 Patients
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Marinus A. Moerland, Hashim U. Ahmed, Jan J W Lagendijk, Jochem R.N. van der Voort van Zyp, Marieke Juliet van Son, Max Peters, Taimur T. Shah, and Wietse S.C. Eppinga
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Cancer Research ,medicine.medical_specialty ,Radiation ,Genitourinary system ,business.industry ,medicine.medical_treatment ,Brachytherapy ,Urology ,Common Terminology Criteria for Adverse Events ,medicine.disease ,High-Dose Rate Brachytherapy ,030218 nuclear medicine & medical imaging ,Androgen deprivation therapy ,Radiation therapy ,03 medical and health sciences ,Prostate cancer ,0302 clinical medicine ,Erectile dysfunction ,Oncology ,030220 oncology & carcinogenesis ,medicine ,Radiology, Nuclear Medicine and imaging ,business - Abstract
Purpose Most patients with local prostate cancer recurrence after radiation therapy undergo palliative androgen deprivation therapy because whole-gland salvage treatments have a high risk of severe toxicity. Focal treatment reduces this risk while offering a second opportunity for cure. We report updated outcomes of ultrafocal salvage high-dose-rate brachytherapy (HDR-BT). Methods and Materials Prospectively collected data from the first 50 treated patients were analyzed. Disease status was assessed by 3T multiparametric magnetic resonance imaging (MRI), 18F-Choline or 68Ga-prostate-specific membrane antigen positron emission tomography/computed tomography, and systematic or tumor-targeted biopsies. Ultrafocal salvage HDR-BT (1 × 19 Gy) was performed by implanting the clinical target volume (CTV: gross tumor volume + 5 mm margin) under fused transrectal ultrasound/MRI guidance. Follow-up included toxicity grading (using Common Terminology Criteria for Adverse Events 4.0), quality of life assessment, and prostate-specific antigen (PSA) testing. Results Median follow-up was 31 months. Median CTV D95% was 18.8 Gy. We observed 2% grade 3 genitourinary toxicity, no grade 3 gastrointestinal toxicity, and 22% newly developed grade 3 erectile dysfunction. Five of 13 patients (38%) with self-reported pretreatment potency (International Index of Erectile Function >17) remained potent. Clinically relevant quality of life deterioration was reported for only 6 of 31 items and was not statistically significant. Biochemical failure (nadir + 2) occurred in 26 patients. Among intraprostatic recurrences, 73% were in field. After 2.5 years, biochemical disease-free survival was 51% (95% confidence interval, 37%-69%), metastases-free survival was 75% (64%-89%), androgen deprivation therapy–free survival was 90% (82%-99%), and overall survival was 98% (94%-100%). Presalvage PSA, CTV size, and stage ≥T3 were significantly associated with biochemical failure. Higher-risk patients (stage ≥T3, PSA ≥10, or PSA double time ≤9 months) had 25% biochemical disease-free survival at 2.5 years versus 71% for lower-risk patients. Conclusions At this early stage, MRI-guided ultrafocal HDR-BT seems to be a safe salvage treatment option, with acceptable biochemical control in a well-selected group of patients and potential for effectively postponing androgen deprivation therapy.
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- 2020
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40. Evaluation of functional outcomes after a second focal high-intensity focused ultrasonography (HIFU) procedure in men with primary localized, non-metastatic prostate cancer: results from the HIFU Evaluation and Assessment of Treatment (HEAT) registry
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Catherine Lovegrove, Stephanie Guillaumier, Mark Emberton, Neil McCartan, Hashim U. Ahmed, Raj Nigam, Henry Lewi, Suks Minhas, Chris Ogden, Raj Persad, Richard Hindley, Jaspal Virdi, Caroline M. Moore, Mathias Winkler, Manit Arya, Feargus Hosking-Jervis, Tim Dudderidge, Max Peters, Naveed Afzal, and Taimur T. Shah
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Male ,medicine.medical_specialty ,Urology ,High intensity focused ,030232 urology & nephrology ,03 medical and health sciences ,Prostate cancer ,Postoperative Complications ,0302 clinical medicine ,medicine ,Humans ,Non metastatic ,Patient Reported Outcome Measures ,Prospective Studies ,Ultrasound, High-Intensity Focused, Transrectal ,Aged ,business.industry ,Ultrasound ,Prostate ,Outcome measures ,Prostatic Neoplasms ,Middle Aged ,medicine.disease ,Treatment Outcome ,Erectile dysfunction ,030220 oncology & carcinogenesis ,International Prostate Symptom Score ,Ultrasonography ,business - Abstract
Objectives To assess change in functional outcomes after a second focal high-intensity focused ultrasonography (HIFU) treatment compared with outcomes after one focal HIFU treatment. Patients and methods In this multicentre study (2005-2016), 821 men underwent focal HIFU for localized non-metastatic prostate cancer. The patient-reported outcome measures of International Prostate Symptom Score (IPSS), pad usage and erectile function (EF) score were prospectively collected for up to 3 years. To be included in the study, completion of at least one follow-up questionnaire was required. The primary outcome was comparison of change in functional outcomes between baseline and follow-up after one focal HIFU procedure vs after a second focal HIFU procedure, using IPSS, Expanded Prostate Cancer Index Composite (EPIC) and International Index of Erectile Function (IIEF) questionnaires. Results Of 821 men, 654 underwent one focal HIFU procedure and 167 underwent a second focal HIFU procedure. A total of 355 (54.3%) men undergoing one focal HIFU procedure and 65 (38.9%) with a second focal HIFU procedure returned follow-up questionnaires, respectively. The mean age and prostate-specific antigen level were 66.4 and 65.6 years, and 7.9 and 8.4 ng/mL, respectively. After one focal HIFU treatment, the mean change in IPSS was -0.03 (P = 0.02) and in IIEF (EF score) it was -0.4 (P = 0.02) at 1-2 years, with no subsequent decline. Absolute rates of erectile dysfunction increased from 9.9% to 20.8% (P = 0.08), leak-free continence decreased from 77.9% to 72.8% (P = 0.06) and pad-free continence from 98.6% to 94.8% (P = 0.07) at 1-2 years, respectively. IPSS prior to second focal HIFU treatment compared to baseline IPSS prior to first focal HIFU treatment was lower by -1.3 (P = 0.02), but mean IPSS change was +1.4 at 1-2 years (P = 0.03) and +1.2 at 2-3 years (P = 0.003) after the second focal HIFU treatment. The mean change in EF score after the second focal HIFU treatment was -0.2 at 1-2 years (P = 0.60) and -0.5 at 2-3 years (P = 0.10), with 17.8% and 6.2% of men with new erectile dysfunction. The rate of new pad use was 1.8% at 1-2 years and 2.6% at 2-3 years. Conclusion A second focal HIFU procedure causes minor detrimental effects on urinary function and EF. These data can be used to counsel patients with non-metastatic prostate cancer prior to considering HIFU therapy.
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- 2020
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41. The impact of local staging of prostate cancer determined on MRI or DRE at time of radical prostatectomy on progression-free survival: A Will Rogers phenomenon
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Arnas Rakauskas, Max Peters, Daniel Ball, Na Hyun Kim, Hashim U. Ahmed, Mathias Winkler, and Taimur T. Shah
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Oncology ,Urology - Abstract
We aimed to test whether the current practice of using mpMRI stage might lead to a Will Rogers phenomenon with a stage migration compared to DRE in men undergoing radical prostatectomy.A total of 572 consecutive patients who underwent radical prostatectomy at a single institution (2007-2017) were included. Clinical stage using digital rectal examination was determined on table by the operating surgeon; mpMRI and pathological stage were recorded after tumor board review. Progression-free survival (PFS) was defined as no rising PSA, no adjuvant/salvage treatment, and no metastases or mortality. PFS was compared between groups and a model incorporating mpMRI into the EAU risk groups was created.Median age was 63 years (IQR 58.5-67) and median PSA was 8.9 ng/ml (IQR 6.5-13.2). Using DRE stage, 20% were NCCN low risk, 43% were intermediate, and 37% high. Median follow-up was 48 months (IQR 22-73). Estimated PFS at 1, 3, and 5 years was 75%, 59%, and 54%, respectively. When comparing PFS between DRE and mpMRI stages, patients deemed T1 (P0.01) or T3 (P = 0.03) by mpMRI showed better outcomes than patients staged T1 or T3 by DRE. On univariable analysis lower risk for failure was seen for MRI T1 disease (HR 0.10 95%, CI 0.01-0.73, P = 0.02) or MRI T3 (HR 0.70, CI 0.51-0.97, P = 0.03). On multivariable analysis, only MRI T1 remained a significant predictor (HR 0.08, 95% CI 0.01-0.59, P = 0.01). The subsequent, modified EAU risk model using both DRE and mpMRI performed significantly better than the DRE model.PFS based on mpMRI is not the same as DRE staging. Current risk groups which use DRE should be used with caution in whom local stage is based on mpMRI. Our modified EAU-risk categories can provide greater accuracy.
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- 2022
42. Prognostic impact of waiting time between diagnosis and treatment in patients with cervical cancer: A nationwide population-based study
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Amy P. Hack, Ronald P. Zweemer, Trudy N. Jonges, Femke van der Leij, Cornelis G. Gerestein, Max Peters, Ina M. Jürgenliemk-Schulz, and Peter S.N. van Rossum
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Cohort Studies ,Oncology ,Waiting Lists ,Obstetrics and Gynecology ,Humans ,Uterine Cervical Neoplasms ,Female ,Prognosis ,Neoadjuvant Therapy ,Retrospective Studies - Abstract
Prior research underlined the importance of timely oncological care as longer waiting times from diagnosis to treatment may result in poorer survival outcomes. The aim of this study was to determine the impact of waiting time from diagnosis to treatment on overall survival (OS) in patients with cervical cancer treated with curative intent.Patients from a nationwide population-based cohort with newly diagnosed cervical cancer between 2010 and 2019 were studied. Patients who underwent surgery or (chemo)radiotherapy with curative intent were selected. Waiting time (i.e. interval between first pathologic confirmation and treatment) was modelled as continuous (i.e. linear per week), dichotomized (i.e. ≤8 versus8 weeks), and polynomial (i.e. restricted cubic splines). The association with OS was examined using Cox regression analyses.Among 6895 patients with cervical cancer, 2755 treated with primary surgery and 1898 who received primary (chemo)radiotherapy were included. Mean waiting time was 8.5 (±4.2) weeks to surgery and 7.7 (±2.9) weeks to (chemo)radiotherapy. Adjusted for confounders, waiting time to surgery was not significantly associated with OS (continuous HR 0.97 [95%CI: 0.93-1.01], dichotomized HR 0.93 [95%CI: 0.68-1.27], polynomial HR not significant). Similarly, a longer waiting time to (chemo)radiotherapy was not significantly associated with poorer OS (continuous HR 0.97 [95%CI: 0.93-1.00], dichotomized HR 0.91 [95%CI: 0.75-1.09], polynomial HR not significant).This large population-based study demonstrates that a longer waiting time (of up to 12 weeks) from diagnosis to treatment in patients with cervical cancer treated with curatively intended surgery or (chemo)radiotherapy does not negatively impact survival.
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- 2022
43. Kommunale Wärmeplanung als Beitrag zur systematischen Erschließung von Klimaschutz im Wärmemarkt
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Volker Kienzlen and Max Peters
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- 2022
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44. Developing a Diagnostic Multivariable Prediction Model for Urinary Tract Cancer in Patients Referred with Haematuria: Results from the IDENTIFY Collaborative Study
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Sinan Khadhouri, Kevin M. Gallagher, Kenneth R. MacKenzie, Taimur T. Shah, Chuanyu Gao, Sacha Moore, Eleanor F. Zimmermann, Eric Edison, Matthew Jefferies, Arjun Nambiar, Thineskrishna Anbarasan, Miles P. Mannas, Taeweon Lee, Giancarlo Marra, Juan Gómez Rivas, Gautier Marcq, Mark A. Assmus, Taha Uçar, Francesco Claps, Matteo Boltri, Giuseppe La Montagna, Tara Burnhope, Nkwam Nkwam, Tomas Austin, Nicholas E. Boxall, Alison P. Downey, Troy A. Sukhu, Marta Antón-Juanilla, Sonpreet Rai, Yew-Fung Chin, Madeline Moore, Tamsin Drake, James S.A. Green, Beatriz Goulao, Graeme MacLennan, Matthew Nielsen, John S. McGrath, Veeru Kasivisvanathan, Aasem Chaudry, Abhishek Sharma, Adam Bennett, Adnan Ahmad, Ahmed Abroaf, Ahmed Musa Suliman, Aimee Lloyd, Alastair McKay, Albert Wong, Alberto Silva, Alexandre Schneider, Alison MacKay, Allen Knight, Alkiviadis Grigorakis, Amar Bdesha, Amy Nagle, Ana Cebola, Ananda Kumar Dhanasekaran, Andraž Kondža, André Barcelos, Andrea Benedetto Galosi, Andrea Ebur, Andrea Minervini, Andrew Russell, Andrew Webb, Ángel García de Jalón, Ankit Desai, Anna Katarzyna Czech, Anna Mainwaring, Anthony Adimonye, Arighno Das, Arnaldo Figueiredo, Arnauld Villers, Artur Leminski, Arvinda Chippagiri, Asim Ahmed Lal, Asıf Yıldırım, Athanasios Marios Voulgaris, Audrey Uzan, Aye Moh Moh Oo, Ayman Younis, Bachar Zelhof, Bashir Mukhtar, Ben Ayres, Ben Challacombe, Benedict Sherwood, Benjamin Ristau, Billy Lai, Brechtje Nellensteijn, Brielle Schreiter, Carlo Trombetta, Catherine Dowling, Catherine Hobbs, Cayo Augusto Estigarribia Benitez, Cédric Lebacle, Cherrie Wing Yin Ho, Chi-Fai Ng, Chloe Mount, Chon Meng Lam, Chris Blick, Christian Brown, Christopher Gallegos, Claire Higgs, Clíodhna Browne, Conor McCann, Cristina Plaza Alonso, Daniel Beder, Daniel Cohen, Daniel Gordon, Daniel Wilby, Danny Gordon, David Hrouda, David Hua Wu Lau, Dávid Karsza, David Mak, David Martin-Way, Denula Suthaharan, Dhruv Patel, Diego M Carrion, Donald Nyanhongo, Edward Bass, Edward Mains, Edwin Chau, Elba Canelon Castillo, Elizabeth Day, Elsayed Desouky, Emily Gaines, Emma Papworth, Emrah Yuruk, Enes Kilic, Eoin Dinneen, Erika Palagonia, Evanguelos Xylinas, Faizan Khawaja, Fernando Cimarra, Florian Bardet, Francesca Kum, Francesca Peters, Gábor Kovács, Geroge Tanasescu, Giles Hellawell, Giovanni Tasso, Gitte Lam, Giuseppe Pizzuto, Gordan Lenart, Günal Özgür, Hai Bi, Hannah Lyons, Hannah Warren, Hashim Ahmed, Helen Simpson, Helena Burden, Helena Gresty, Hernado Rios Pita, Holly Clarke, Hosam Serag, Howard Kynaston, Hugh Crawford-Smith, Hugh Mostafid, Hugo Otaola-Arca, Hui Fen Koo, Ibrahim Ibrahim, Idir Ouzaid, Ignacio Puche-Sanz, Igor Tomašković, Ilker Tinay, Iqbal Sahibzada, Isaac Thangasamy, Iván Revelo Cadena, Jacques Irani, Jakub Udzik, James Brittain, James Catto, James Green, James Tweedle, Jamie Borrego Hernando, Jamie Leask, Jas Kalsi, Jason Frankel, Jason Toniolo, Jay D. Raman, Jean Courcier, Jeevan Kumaradeevan, Jennifer Clark, Jennifer Jones, Jeremy Yuen-Chun Teoh, John Iacovou, John Kelly, John P. Selph, Jonathan Aning, Jon Deeks, Jonathan Cobley, Jonathan Olivier, Jonny Maw, José Antonio Herranz-Yagüe, Jose Ignacio Nolazco, Jose Manuel Cózar-Olmo, Joseph Bagley, Joseph Jelski, Joseph Norris, Joseph Testa, Joshua Meeks, Juan Hernandez, Juan Luis Vásquez, Karen Randhawa, Karishma Dhera, Katarzyna Gronostaj, Kathleen Houlton, Kathleen Lehman, Kathryn Gillams, Kelvin Adasonla, Kevin Brown, Kevin Murtagh, Kiki Mistry, Kim Davenport, Kosuke Kitamura, Laura Derbyshire, Laurence Clarke, Lawrie Morton, Levin Martinez, Louise Goldsmith, Louise Paramore, Luc Cormier, Lucio Dell'Atti, Lucy Simmons, Luis Martinez-Piñeiro, Luis Rico, Luke Chan, Luke Forster, Lulin Ma, Maria Camacho Gallego, Maria José Freire, Mark Emberton, Mark Feneley, Marta Viridiana Muñoz Rivero, Matea Pirša, Matteo Tallè, Matthew Crockett, Matthew Liew, Matthew Trail, Max Peters, Meghan Cooper, Meghana Kulkarni, Michael Ager, Ming He, Mo Li, Mohamed Omran Breish, Mohamed Tarin, Mohammed Aldiwani, Mudit Matanhelia, Muhammad Pasha, Mustafa Kaan Akalın, Nasreen Abdullah, Nathan Hale, Neha Gadiyar, Neil Kocher, Nicholas Bullock, Nicholas Campain, Nicola Pavan, Nihad Al-Ibraheem, Nikita Bhatt, Nishant Bedi, Nitin Shrotri, Niyati Lobo, Olga Balderas, Omar Kouli, Otakar Capoun, Pablo Oteo Manjavacas, Paolo Gontero, Paramananthan Mariappan, Patricio Garcia Marchiñena, Paul Erotocritou, Paul Sweeney, Paula Planelles, Peter Acher, Peter C. Black, Peter K Osei-Bonsu, Peter Østergren, Peter Smith, Peter-Paul Michiel Willemse, Piotr L. Chlosta, Qurrat Ul Ain, Rachel Barratt, Rachel Esler, Raihan Khalid, Ray Hsu, Remigiusz Stamirowski, Reshma Mangat, Ricardo Cruz, Ricky Ellis, Robert Adams, Robert Hessell, Robert J.A. Oomen, Robert McConkey, Robert Ritchie, Roberto Jarimba, Rohit Chahal, Rosado Mario Andres, Rosalyn Hawkins, Rotimi David, Rustom P. Manecksha, Sachin Agrawal, Syed Sami Hamid, Samuel Deem, Sanchia Goonewardene, Satchi Kuchibhotla Swami, Satoshi Hori, Shahid Khan, Shakeel Mohammud Inder, Shanthi Sangaralingam, Shekhar Marathe, Sheliyan Raveenthiran, Shigeo Horie, Shomik Sengupta, Sian Parson, Sidney Parker, Simon Hawlina, Simon Williams, Simone Mazzoli, Slawomir Grzegorz Kata, Sofia Pinheiro Lopes, Sónia Ramos, Sophie Rintoul-Hoad, Sorcha O'Meara, Steve Morris, Stacey Turner, Stefano Venturini, Stephanos Almpanis, Steven Joniau, Sunjay Jain, Susan Mallett, Sven Nikles, null Shahzad, Sylvia Yan, Tarq Toma, Teresa Cabañuz Plo, Thierry Bonnin, Tim Muilwijk, Tim Wollin, Timothy Shun Man Chu, Timson Appanna, Tom Brophy, Tom Ellul, Tomaž Smrkolj, Tracey Rowe, Troy Sukhu, Trushar Patel, Tullika Garg, Turhan Çaşkurlu, Uros Bele, Usman Haroon, Víctor Crespo-Atín, Victor Parejo Cortes, Victoria Capapé Poves, Vincent Gnanapragasam, Vineet Gauhar, Vinnie During, Vivek Kumar, Vojtech Fiala, Wasim Mahmalji, Wayne Lam, Yew Fung Chin, Yigit Filtekin, Yih Chyn Phan, Youssed Ibrahim, Zachary A Glaser, Zainal Adwin Abiddin, Zijian Qin, Zsuzsanna Zotter, Zulkifli Zainuddin, Khadhouri, Sinan, Gallagher, Kevin M., Mackenzie, Kenneth R., Shah, Taimur T., Gao, Chuanyu, Moore, Sacha, Zimmermann, Eleanor F., Edison, Eric, Jefferies, Matthew, Nambiar, Arjun, Anbarasan, Thineskrishna, Mannas, Miles P., Lee, Taeweon, Marra, Giancarlo, Gómez Rivas, Juan, Marcq, Gautier, Assmus, Mark A., Uçar, Taha, Claps, Francesco, Boltri, Matteo, La Montagna, Giuseppe, Burnhope, Tara, Nkwam, Nkwam, Austin, Toma, Boxall, Nicholas E., Downey, Alison P., Sukhu, Troy A., Antón-Juanilla, Marta, Rai, Sonpreet, Chin, Yew-Fung, Moore, Madeline, Drake, Tamsin, Green, James S. A., Goulao, Beatriz, Maclennan, Graeme, Nielsen, Matthew, Mcgrath, John S., Kasivisvanathan, Veeru, Chaudry, Aasem, Sharma, Abhishek, Bennett, Adam, Ahmad, Adnan, Abroaf, Ahmed, Suliman, Ahmed Musa, Lloyd, Aimee, Mckay, Alastair, Wong, Albert, Silva, Alberto, Schneider, Alexandre, Mackay, Alison, Knight, Allen, Grigorakis, Alkiviadi, Bdesha, Amar, Nagle, Amy, Cebola, Ana, Dhanasekaran, Ananda Kumar, Kondža, Andraž, Barcelos, André, Galosi, Andrea Benedetto, Ebur, Andrea, Minervini, Andrea, Russell, Andrew, Webb, Andrew, de Jalón, Ángel García, Desai, Ankit, Czech, Anna Katarzyna, Mainwaring, Anna, Adimonye, Anthony, Das, Arighno, Figueiredo, Arnaldo, Villers, Arnauld, Leminski, Artur, Chippagiri, Arvinda, Lal, Asim Ahmed, Yıldırım, Asıf, Voulgaris, Athanasios Mario, Uzan, Audrey, Oo, Aye Moh Moh, Younis, Ayman, Zelhof, Bachar, Mukhtar, Bashir, Ayres, Ben, Challacombe, Ben, Sherwood, Benedict, Ristau, Benjamin, Lai, Billy, Nellensteijn, Brechtje, Schreiter, Brielle, Trombetta, Carlo, Dowling, Catherine, Hobbs, Catherine, Benitez, Cayo Augusto Estigarribia, Lebacle, Cédric, Ho, Cherrie Wing Yin, Ng, Chi-Fai, Mount, Chloe, Lam, Chon Meng, Blick, Chri, Brown, Christian, Gallegos, Christopher, Higgs, Claire, Browne, Clíodhna, Mccann, Conor, Plaza Alonso, Cristina, Beder, Daniel, Cohen, Daniel, Gordon, Daniel, Wilby, Daniel, Gordon, Danny, Hrouda, David, Lau, David Hua Wu, Karsza, Dávid, Mak, David, Martin-Way, David, Suthaharan, Denula, Patel, Dhruv, Carrion, Diego M, Nyanhongo, Donald, Bass, Edward, Mains, Edward, Chau, Edwin, Canelon Castillo, Elba, Day, Elizabeth, Desouky, Elsayed, Gaines, Emily, Papworth, Emma, Yuruk, Emrah, Kilic, Ene, Dinneen, Eoin, Palagonia, Erika, Xylinas, Evanguelo, Khawaja, Faizan, Cimarra, Fernando, Bardet, Florian, Kum, Francesca, Peters, Francesca, Kovács, Gábor, Tanasescu, Geroge, Hellawell, Gile, Tasso, Giovanni, Lam, Gitte, Pizzuto, Giuseppe, Lenart, Gordan, Özgür, Günal, Bi, Hai, Lyons, Hannah, Warren, Hannah, Ahmed, Hashim, Simpson, Helen, Burden, Helena, Gresty, Helena, Rios Pita, Hernado, Clarke, Holly, Serag, Hosam, Kynaston, Howard, Crawford-Smith, Hugh, Mostafid, Hugh, Otaola-Arca, Hugo, Koo, Hui Fen, Ibrahim, Ibrahim, Ouzaid, Idir, Puche-Sanz, Ignacio, Tomašković, Igor, Tinay, Ilker, Sahibzada, Iqbal, Thangasamy, Isaac, Cadena, Iván Revelo, Irani, Jacque, Udzik, Jakub, Brittain, Jame, Catto, Jame, Green, Jame, Tweedle, Jame, Hernando, Jamie Borrego, Leask, Jamie, Kalsi, Ja, Frankel, Jason, Toniolo, Jason, Raman, Jay D., Courcier, Jean, Kumaradeevan, Jeevan, Clark, Jennifer, Jones, Jennifer, Teoh, Jeremy Yuen-Chun, Iacovou, John, Kelly, John, Selph, John P., Aning, Jonathan, Deeks, Jon, Cobley, Jonathan, Olivier, Jonathan, Maw, Jonny, Herranz-Yagüe, José Antonio, Nolazco, Jose Ignacio, Cózar-Olmo, Jose Manuel, Bagley, Joseph, Jelski, Joseph, Norris, Joseph, Testa, Joseph, Meeks, Joshua, Hernandez, Juan, Vásquez, Juan Lui, Randhawa, Karen, Dhera, Karishma, Gronostaj, Katarzyna, Houlton, Kathleen, Lehman, Kathleen, Gillams, Kathryn, Adasonla, Kelvin, Brown, Kevin, Murtagh, Kevin, Mistry, Kiki, Davenport, Kim, Kitamura, Kosuke, Derbyshire, Laura, Clarke, Laurence, Morton, Lawrie, Martinez, Levin, Goldsmith, Louise, Paramore, Louise, Cormier, Luc, Dell'Atti, Lucio, Simmons, Lucy, Martinez-Piñeiro, Lui, Rico, Lui, Chan, Luke, Forster, Luke, Ma, Lulin, Gallego, Maria Camacho, Freire, Maria José, Emberton, Mark, Feneley, Mark, Rivero, Marta Viridiana Muñoz, Pirša, Matea, Tallè, Matteo, Crockett, Matthew, Liew, Matthew, Trail, Matthew, Peters, Max, Cooper, Meghan, Kulkarni, Meghana, Ager, Michael, He, Ming, Li, Mo, Omran Breish, Mohamed, Tarin, Mohamed, Aldiwani, Mohammed, Matanhelia, Mudit, Pasha, Muhammad, Akalın, Mustafa Kaan, Abdullah, Nasreen, Hale, Nathan, Gadiyar, Neha, Kocher, Neil, Bullock, Nichola, Campain, Nichola, Pavan, Nicola, Al-Ibraheem, Nihad, Bhatt, Nikita, Bedi, Nishant, Shrotri, Nitin, Lobo, Niyati, Balderas, Olga, Kouli, Omar, Capoun, Otakar, Oteo Manjavacas, Pablo, Gontero, Paolo, Mariappan, Paramananthan, Marchiñena, Patricio Garcia, Erotocritou, Paul, Sweeney, Paul, Planelles, Paula, Acher, Peter, Black, Peter C., Osei-Bonsu, Peter K, Østergren, Peter, Smith, Peter, Willemse, Peter-Paul Michiel, Chlosta, Piotr L., Ul Ain, Qurrat, Barratt, Rachel, Esler, Rachel, Khalid, Raihan, Hsu, Ray, Stamirowski, Remigiusz, Mangat, Reshma, Cruz, Ricardo, Ellis, Ricky, Adams, Robert, Hessell, Robert, Oomen, Robert J. A., Mcconkey, Robert, Ritchie, Robert, Jarimba, Roberto, Chahal, Rohit, Andres, Rosado Mario, Hawkins, Rosalyn, David, Rotimi, Manecksha, Rustom P., Agrawal, Sachin, Hamid, Syed Sami, Deem, Samuel, Goonewardene, Sanchia, Swami, Satchi Kuchibhotla, Hori, Satoshi, Khan, Shahid, Mohammud Inder, Shakeel, Sangaralingam, Shanthi, Marathe, Shekhar, Raveenthiran, Sheliyan, Horie, Shigeo, Sengupta, Shomik, Parson, Sian, Parker, Sidney, Hawlina, Simon, Williams, Simon, Mazzoli, Simone, Grzegorz Kata, Slawomir, Pinheiro Lopes, Sofia, Ramos, Sónia, Rintoul-Hoad, Sophie, O'Meara, Sorcha, Morris, Steve, Turner, Stacey, Venturini, Stefano, Almpanis, Stephano, Joniau, Steven, Jain, Sunjay, Mallett, Susan, Nikles, Sven, Shahzad, Null, Yan, Sylvia, Toma, Tarq, Cabañuz Plo, Teresa, Bonnin, Thierry, Muilwijk, Tim, Wollin, Tim, Chu, Timothy Shun Man, Appanna, Timson, Brophy, Tom, Ellul, Tom, Smrkolj, Tomaž, Rowe, Tracey, Sukhu, Troy, Patel, Trushar, Garg, Tullika, Çaşkurlu, Turhan, Bele, Uro, Haroon, Usman, Crespo-Atín, Víctor, Parejo Cortes, Victor, Capapé Poves, Victoria, Gnanapragasam, Vincent, Gauhar, Vineet, During, Vinnie, Kumar, Vivek, Fiala, Vojtech, Mahmalji, Wasim, Lam, Wayne, Fung Chin, Yew, Filtekin, Yigit, Chyn Phan, Yih, Ibrahim, Youssed, Glaser, Zachary A, Abiddin, Zainal Adwin, Qin, Zijian, Zotter, Zsuzsanna, and Zainuddin, Zulkifli
- Subjects
Renal cancer ,Prostate cancer ,Risk factors ,Urology ,Bladder cancer ,Urothelial cancer ,Risk factor ,Urinary tract cancer ,Haematuria ,Risk Calculator - Abstract
Background: Patient factors associated with urinary tract cancer can be used to risk stratify patients referred with haematuria, prioritising those with a higher risk of cancer for prompt investigation. Objective: To develop a prediction model for urinary tract cancer in patients referred with haematuria. Design, setting, and participants: A prospective observational study was conducted in 10 282 patients from 110 hospitals across 26 countries, aged ≥16 yr and referred to secondary care with haematuria. Patients with a known or previous urological malignancy were excluded. Outcome measurements and statistical analysis: The primary outcomes were the presence or absence of urinary tract cancer (bladder cancer, upper tract urothelial cancer [UTUC], and renal cancer). Mixed-effect multivariable logistic regression was performed with site and country as random effects and clinically important patient-level candidate predictors, chosen a priori, as fixed effects. Predictors were selected primarily using clinical reasoning, in addition to backward stepwise selection. Calibration and discrimination were calculated, and bootstrap validation was performed to calculate optimism. Results and limitations: The unadjusted prevalence was 17.2% (n = 1763) for bladder cancer, 1.20% (n = 123) for UTUC, and 1.00% (n = 103) for renal cancer. The final model included predictors of increased risk (visible haematuria, age, smoking history, male sex, and family history) and reduced risk (previous haematuria investigations, urinary tract infection, dysuria/suprapubic pain, anticoagulation, catheter use, and previous pelvic radiotherapy). The area under the receiver operating characteristic curve of the final model was 0.86 (95% confidence interval 0.85-0.87). The model is limited to patients without previous urological malignancy. Conclusions: This cancer prediction model is the first to consider established and novel urinary tract cancer diagnostic markers. It can be used in secondary care for risk stratifying patients and aid the clinician's decision-making process in prioritising patients for investigation. Patient summary: We have developed a tool that uses a person's characteristics to determine the risk of cancer if that person develops blood in the urine (haematuria). This can be used to help prioritise patients for further investigation.
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- 2022
45. Postoperative glioblastoma treatment variation and its outcome in the Dutch elderly population
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Arthur T.J. van der Boog, Karlijn H.E. Smitt, Max Peters, Fia Cialdella, Vincent Ho, Filip Y.F. de Vos, Tom J. Snijders, Pierre A.J. Robe, and Joost J.C. Verhoeff
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- 2022
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46. Adjuvant treatment modalities and survival in the Dutch biopsy-only glioblastoma population
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Arthur T.J. van der Boog, Max Peters, Fia Cialdella, Vincent Ho, Filip Y.F. de Vos, Tom J. Snijders, Pierre A.J. Robe, and Joost J.C. Verhoeff
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- 2022
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- View/download PDF
47. Recurrence characteristics after focal salvage HDR brachytherapy in prostate cancer
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Marnix J.A. Rasing, Max Peters, Marieke van Son, Marinus A. Moerland, Wietse Eppinga, Sandrine M.G. van de Pol, Juus Noteboom, Jan Lagendijk, and Jochem R.N. van der Voort van Zyp
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Oncology ,Radiology, Nuclear Medicine and imaging ,Hematology - Published
- 2023
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48. OC-0039 Predicting biochemical failure after MR-guided focal HDR brachytherapy for recurrent prostate cancer
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J.R.N. Van der Voort van Zyp, Wietse S.C. Eppinga, T. Willigenburg, J.J.W. Lagendijk, H. de Boer, Marinus A. Moerland, Max Peters, S. van de Pol, and M. van Son
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medicine.medical_specialty ,Oncology ,business.industry ,medicine.medical_treatment ,Biochemical failure ,Brachytherapy ,medicine ,Radiology, Nuclear Medicine and imaging ,Recurrent prostate cancer ,Hematology ,Radiology ,business ,Mri guided - Published
- 2021
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49. Upstaging by para-aortic lymph node dissection in patients with locally advanced cervical cancer: A systematic review and meta-analysis
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Annelou A.B. Thelissen, Ina M. Jürgenliemk-Schulz, Femke van der Leij, Max Peters, Cornelis G. Gerestein, Ronald P. Zweemer, and Peter S.N. van Rossum
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Oncology ,Lymphatic Metastasis ,Positron Emission Tomography Computed Tomography ,Obstetrics and Gynecology ,Humans ,Lymph Node Excision ,Uterine Cervical Neoplasms ,Female ,Lymph Nodes ,Neoplasm Staging - Abstract
Accurate staging of para-aortic nodal status in cervical cancer is of great importance for individualizing treatment and impacting outcomes. Three-dimensional imaging (i.e. PET, CT, MRI) may miss para-aortic lymph node (PALN) metastases. The aim of this study was to systematically review and meta-analyze the proportion of upstaging by PALN dissection in patients with locally advanced cervical cancer without suspicious PALNs on imaging.PubMed/MEDLINE and Embase were systematically searched. The analysis included diagnostic studies that reported on 3D imaging and pre-therapeutic surgical assessment of PALN status in patients with cervical cancer. An overall pooled upstaging rate was calculated using a random-effects model.The search identified 16 eligible studies including 18 cohorts with a total of 1530 patients. Pooling of 12 cohorts demonstrated an upstaging rate of 12% (95% confidence interval [CI] 10-15%) by PALN dissection after negative PET or PET-CT. Pooling of 6 cohorts demonstrated a pooled upstaging rate of 11% (95% CI: 8-16%) by PALN dissection after negative MRI or CT. No significant heterogeneity in upstaging proportions across cohorts was observed (IThis meta-analysis demonstrates that in case of no suspicious PALN on PET-CT or MRI, PALN dissection still identifies lymph node metastases in a considerable amount of patients with locally advanced cervical cancer and especially in those patients with confirmed pelvic nodal metastases.
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- 2021
50. MP05-15 TRANSPERINEAL VS TRANSRECTAL MICRO-ULTRASOUND AND MPMRI TARGETED PROSTATE BIOPSIES: PROPENSITY SCORE-MATCHED STUDY
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Paul Martel, Stefano La Rosa, Beat Roth, Jean-Yves Meuwly, Arnas Rakauskas, Massimo Valerio, and Max Peters
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medicine.medical_specialty ,medicine.anatomical_structure ,genetic structures ,business.industry ,Prostate ,Urology ,Propensity score matching ,Medicine ,High resolution ,Radiology ,business ,Micro ultrasound - Abstract
INTRODUCTION AND OBJECTIVE:Micro-ultrasound (micro-US) is a novel US-based imaging modality that allows real-time targeted prostate biopsies with mpMRI fusion. Its high resolution relying on a 29 M...
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- 2021
- Full Text
- View/download PDF
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