10 results on '"Schweizerhof O"'
Search Results
2. TMS recruitment curve and cortical silent period analysis – a sensitive tool to detect imminent motor deficits in brain tumour patients
- Author
-
Bährend, I, Engelhardt, M, Rosenstock, T, Schneider, H, Grittner, U, Schweizerhof, O, Khakhar, R, Zdunczyk, A, Schwarzer, V, Vajkoczy, P, and Picht, T
- Subjects
ddc: 610 ,610 Medical sciences ,Medicine - Abstract
Objective: One of the challenges of tumor resection in motor eloquent areas is the individual risk assessment for a postoperative motor disorder. Previously, a predictive model was developed that permits objective evaluation of the risk prior to surgery based on topographical and neurophysiological [for full text, please go to the a.m. URL], 71. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC), 9. Joint Meeting mit der Japanischen Gesellschaft für Neurochirurgie
- Published
- 2020
- Full Text
- View/download PDF
3. Statistical misconceptions in medical research – ideas to effectively address them
- Author
-
Piper, SK, Schweizerhof, O, Siegerink, B, Rohmann, J, Schneider, A, Rauch, G, and Grittner, U
- Subjects
Epidemiologie ,ddc: 610 ,610 Medical sciences ,Medicine ,Biometrie - Abstract
Methodological competencies of both researcher and public are essential for the quality, credibility and correct interpretation of research results. Familiarity with key statistical and epidemiological concepts is integral to a project’s success. However, common misconceptions can lead to misuse[for full text, please go to the a.m. URL], 63. Jahrestagung der Deutschen Gesellschaft für Medizinische Informatik, Biometrie und Epidemiologie e.V. (GMDS)
- Published
- 2018
- Full Text
- View/download PDF
4. A german pilot study comparing standard wire localization with magnetic seed localization for non-palpable breast lesions
- Author
-
Karsten, MM, additional, Aliyeva, I, additional, Kussmaul, J, additional, Simon, CEE, additional, Groß, J, additional, Völker, R, additional, Schweizerhof, O, additional, and Blohmer, JU, additional
- Published
- 2019
- Full Text
- View/download PDF
5. Intraoperative indocyanine green fluorescence imaging in breast surgery
- Author
-
Kühn, F, additional, Karsten, MM, additional, Schweizerhof, O, additional, and Blohmer, JU, additional
- Published
- 2019
- Full Text
- View/download PDF
6. Preoperative nTMS analysis: a sensitive tool to detect imminent motor deficits in brain tumor patients.
- Author
-
Moritz I, Engelhardt M, Rosenstock T, Grittner U, Schweizerhof O, Khakhar R, Schneider H, Mirbagheri A, Zdunczyk A, Faust K, Vajkoczy P, and Picht T
- Subjects
- Humans, Male, Female, Middle Aged, Adult, Aged, Motor Cortex physiopathology, Motor Cortex surgery, Preoperative Care methods, Evoked Potentials, Motor physiology, Postoperative Complications diagnosis, Postoperative Complications etiology, Motor Disorders etiology, Motor Disorders diagnosis, Prospective Studies, Brain Neoplasms surgery, Transcranial Magnetic Stimulation methods, Glioma surgery
- Abstract
Background: One of the challenges in surgery of tumors in motor eloquent areas is the individual risk assessment for postoperative motor disorder. Previously a regression model was developed that permits estimation of the risk prior to surgery based on topographical and neurophysiological data derived from investigation with nTMS (navigated Transcranial Magnetic Stimulation). This study aims to analyze the impact of including additional neurophysiological TMS parameters into the established risk stratification model for motor outcome after brain tumor surgery., Methods: Biometric and clinical data of 170 patients with glioma in motor eloquent areas were collected prospectively. In addition, the following nTMS parameters were collected bihemispherically prior to surgery: resting motor threshold (RMT), recruitment curve (RC), cortical silent period (CSP) and a nTMS based fibertracking to measure the tumor tract distance (TTD). Motor function was quantified by Medical Research Council Scale (MRCS) preoperatively, seven days and three months postoperatively. Association between nTMS parameters and postoperative motor outcome was investigated in bivariate and multivariable analyses., Results: The bivariate analysis confirmed the association of RMT ratio with the postoperative motor outcome after seven days with higher rates of worsening in patients with RMT ratio > 1.1 compared to patients with RMT ratio ≤ 1.1 (31.6% vs. 15.1%, p = 0.009). Similarly, an association between a pathological CSP ratio and a higher risk of new postoperative motor deficits after seven days was observed (35.3% vs. 16.7% worsening, p = 0.025). A pathological RC Ratio was associated postoperative deterioration of motor function after three months (42.9% vs. 16.2% worsening, p = 0.004). In multiple regression analysis, none of these associations were statistically robust., Conclusions: The current results suggest that the RC ratio, CSP ratio and RMT ratio individually are sensitive markers associated with the motor outcome 7 days and 3 months after tumor resection in a presumed motor eloquent location. They can therefore supply valuable information during preoperative risk-benefit-balancing. However, underlying neurophysiological mechanisms might be too similar to make the parameters meaningful in a combined model., (© 2024. The Author(s).)
- Published
- 2024
- Full Text
- View/download PDF
7. Converting PROMIS ® -29 v2.0 profile data to SF-36 physical and mental component summary scores in patients with cardiovascular disorders.
- Author
-
Liegl G, H Fischer F, N Martin C, Rönnefarth M, Blumrich A, Ahmadi M, Boldt LH, Eckardt KU, Endres M, Edelmann F, Gerhardt H, Grittner U, Haghikia A, Hübner N, Landmesser U, Leistner D, Mai K, Kollmus-Heege J, N Müller D, H Nolte C, K Piper S, M Schmidt-Ott K, Pischon T, Rattan S, Rohrpasser-Napierkowski I, Schönrath K, Schulz-Menger J, Schweizerhof O, Spranger J, E Weber J, Witzenrath M, Schmidt S, and Rose M
- Subjects
- Humans, Male, Female, Middle Aged, Aged, Surveys and Questionnaires standards, Algorithms, Mental Health, Psychometrics, Health Surveys, Quality of Life, Cardiovascular Diseases psychology
- Abstract
Background: Health-related quality of life (HRQL) has become an important outcome parameter in cardiology. The MOS 36-ltem Short-Form Health Survey (SF-36) and the PROMIS-29 are two widely used generic measures providing composite HRQL scores. The domains of the SF-36, a well-established instrument utilized for several decades, can be aggregated to physical (PCS) and mental (MCS) component summary scores. Alternative scoring algorithms for correlated component scores (PCS
c and MCSc ) have also been suggested. The PROMIS-29 is a newer but increasingly used HRQL measure. Analogous to the SF-36, physical and mental health summary scores can be derived from PROMIS-29 domain scores, based on a correlated factor solution. So far, scores from the PROMIS-29 are not directly comparable to SF-36 results, complicating the aggregation of research findings. Thus, our aim was to provide algorithms to convert PROMIS-29 data to well-established SF-36 component summary scores., Methods: Data from n = 662 participants of the Berlin Long-term Observation of Vascular Events (BeLOVE) study were used to estimate linear regression models with either PROMIS-29 domain scores or aggregated PROMIS-29 physical/mental health summary scores as predictors and SF-36 physical/mental component summary scores as outcomes. Data from a subsequent assessment point (n = 259) were used to evaluate the agreement between empirical and predicted SF-36 scores., Results: PROMIS-29 domain scores as well as PROMIS-29 health summary scores showed high predictive value for PCS, PCSc , and MCSc (R2 ≥ 70%), and moderate predictive value for MCS (R2 = 57% and R2 = 40%, respectively). After applying the regression coefficients to new data, empirical and predicted SF-36 component summary scores were highly correlated (r > 0.8) for most models. Mean differences between empirical and predicted scores were negligible (|SMD|<0.1)., Conclusions: This study provides easy-to-apply algorithms to convert PROMIS-29 data to well-established SF-36 physical and mental component summary scores in a cardiovascular population. Applied to new data, the agreement between empirical and predicted SF-36 scores was high. However, for SF-36 mental component summary scores, considerably better predictions were found under the correlated (MCSc ) than under the original factor model (MCS). Additionally, as a pertinent byproduct, our study confirmed construct validity of the relatively new PROMIS-29 health summary scores in cardiology patients., (© 2024. The Author(s).)- Published
- 2024
- Full Text
- View/download PDF
8. Protocol of the Berlin Long-term Observation of Vascular Events (BeLOVE): a prospective cohort study with deep phenotyping and long-term follow up of cardiovascular high-risk patients.
- Author
-
Weber JE, Ahmadi M, Boldt LH, Eckardt KU, Edelmann F, Gerhardt H, Grittner U, Haubold K, Hübner N, Kollmus-Heege J, Landmesser U, Leistner DM, Mai K, Müller DN, Nolte CH, Pieske B, Piper SK, Rattan S, Rauch G, Schmidt S, Schmidt-Ott KM, Schönrath K, Schulz-Menger J, Schweizerhof O, Siegerink B, Spranger J, Ramachandran VS, Witzenrath M, Endres M, and Pischon T
- Subjects
- Adult, Humans, SARS-CoV-2, Berlin, Prospective Studies, Artificial Intelligence, Follow-Up Studies, Lung, COVID-19, Cardiovascular Diseases
- Abstract
Introduction: The Berlin Long-term Observation of Vascular Events is a prospective cohort study that aims to improve prediction and disease-overarching mechanistic understanding of cardiovascular (CV) disease progression by comprehensively investigating a high-risk patient population with different organ manifestations., Methods and Analysis: A total of 8000 adult patients will be recruited who have either suffered an acute CV event (CVE) requiring hospitalisation or who have not experienced a recent acute CVE but are at high CV risk. An initial study examination is performed during the acute treatment phase of the index CVE or after inclusion into the chronic high risk arm. Deep phenotyping is then performed after ~90 days and includes assessments of the patient's medical history, health status and behaviour, cardiovascular, nutritional, metabolic, and anthropometric parameters, and patient-related outcome measures. Biospecimens are collected for analyses including 'OMICs' technologies (e.g., genomics, metabolomics, proteomics). Subcohorts undergo MRI of the brain, heart, lung and kidney, as well as more comprehensive metabolic, neurological and CV examinations. All participants are followed up for up to 10 years to assess clinical outcomes, primarily major adverse CVEs and patient-reported (value-based) outcomes. State-of-the-art clinical research methods, as well as emerging techniques from systems medicine and artificial intelligence, will be used to identify associations between patient characteristics, longitudinal changes and outcomes., Ethics and Dissemination: The study was approved by the Charité-Universitätsmedizin Berlin ethics committee (EA1/066/17). The results of the study will be disseminated through international peer-reviewed publications and congress presentations., Study Registration: First study phase: Approved WHO primary register: German Clinical Trials Register: https://drks.de/search/de/trial/DRKS00016852; WHO International Clinical Registry Platform: http://apps.who.int/trialsearch/Trial2.aspx?TrialID=DRKS00016852. Recruitment started on July 18, 2017.Second study phase: Approved WHO primary register: German Clinical Trials Register DRKS00023323, date of registration: November 4, 2020, URL: http://www.drks.de/ DRKS00023323. Recruitment started on January 1, 2021., Competing Interests: Competing interests: FE reports grants from German Research Foundation (DFG), grants from German Ministry of Education and Research, grants from the German Herta Foundation; during the conduct of the study; personal fees and non-financial support from Novartis, grants and personal fees from Boehringer Ingelheim, personal fees from CVRx, Pfizer, Medtronic, grants and personal fees from Servier, personal fees from MSD, personal fees from Merck & Co., grants from AstraZeneca, personal fees from Bayer, personal fees from Resmed, personal fees from Berlin Chemie, grants from Thermo Fischer, personal fees from Vifor Pharma, personal fees from PharmaCosmos outside the submitted work; ME reports grants from Bayer and fees paid to the Charité from Abbot, Amgen, AstraZeneca, Bayer, Boehringer Ingelheim, BMS, Daiichi Sankyo, Amgen, Sanofi, Novartis, Pfizer, all outside the submitted work. ME received funding from DFG under Germany’s Excellence Strategy – EXC-2049 – 390688087, Collaborative Research Center ReTune TRR 295- 424778381, BMBF, DZNE, DZHK, EU, Corona Foundation, and Fondation Leducq. HG reports grants from the DFG, the Leducq Foundation, the Federal Ministry of Education and Research (BMBF) and the DZHK during the conduct of the study, outside of the submitted work. UL reports research funding from DZHK; Fondation Leducq; research grants from Novartis, Bayer and Amgen. KM declares that there is no conflict of interest that could be perceived as prejudicing the impartiality of the research reported. DNM received funding for research from Bayer Healthcare, Deutsche Forschungsgemeinschaft and from BMBF. CHN received research grants from German Ministry of Research and Education, German Center for neurodegenerative Diseases (DZNE), DZHK, and speaker and/or consultation fees from Boehringer Ingelheim, Bristol-Myers Squibb, Pfizer Pharma, Abbott, Novartis, Daichii-Sankyo and Alexion all outside the submitted work. BP reports personal fees and other from Bayer Healthcare, personal fees and other from MSD, personal fees and other from Novartis, personal fees from Astrazeneca, grants and personal fees from Servier, personal fees from Medscape, outside the submitted work. No other relationships or activities that could appear to have influenced the submitted work have exist beyond those listed. TP received grants from the BMBF, the Federal Ministry of Food and Agriculture (BMEL), the Federal Ministry for Economic Affairs and Energy (BMWi), the DFG, Deutsche Herzstiftung, German Academic Exchange Service (DAAD). KMSO reports having consultancy fees with BioPorto Diagnostics; having received license revenue related to the use of a neutrophil gelatinase-associated lipocalin assay via Columbia University; receiving research funding from FAST BioMedical, for being a principal investigator of the EMPAKT-CHF trial, and Quark Pharmaceuticals, for being the site principal investigator for QRK309 trial; and being an editorial board member for Kidney International and Kidney International Reports; each outside the submitted work. JSM reports grants from Bayer Healthcare, non-financial support from Siemens healthineers, non-financial support from Circle cardiovascular, non-financial support from Medis, outside the submitted work, and Bayer Healthcare, Advisor. Furthermore, funding for research from the EU, DZHK, Deutsche Herzstiftung. JS received funding for research from DFG and from BMBF. MW received funding for research from DFG, BMBF, Deutsche Gesellschaft für Pneumologie, European Respiratory Society, Marie Curie Foundation, Else Kröner Fresenius Foundation, Capnetz Foundation, International Max Planck Research School, Actelion, Bayer Health Care, Biotest, Boehringer Ingelheim, Noxxon, Pantherna, Quark Pharma, Vaxxilon, and for lectures and advisory from Actelion, Aptarion, Astra Zeneca, Bayer Health Care, Berlin Chemie, Biotest, Boehringer Ingelheim, Chiesi, Glaxo Smith Kline, Novartis, Noxxon, Pantherna, Teva und Vaxxilon. All remaining authors MA, L-HB, K-UE, UG, NH, JK-H, DL, DNM, SKP, SR, GR, KS, OS, BS, SS, RV, JEW do not report potential conflicts of interest., (© Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2023
- Full Text
- View/download PDF
9. The spinal cord injury-induced immune deficiency syndrome: results of the SCIentinel study.
- Author
-
Kopp MA, Meisel C, Liebscher T, Watzlawick R, Cinelli P, Schweizerhof O, Blex C, Lübstorf T, Prilipp E, Niedeggen A, Druschel C, Schaser KD, Wanner GA, Curt A, Lindemann G, Nugeva N, Fehlings MG, Vajkoczy P, Cabraja M, Dengler J, Ertel W, Ekkernkamp A, Rehahn K, Martus P, Volk HD, Unterwalder N, Kölsch U, Brommer B, Hellmann RC, Baumgartner E, Hirt J, Geurtz LC, Saidy RRO, Prüss H, Laginha I, Failli V, Grittner U, Dirnagl U, and Schwab JM
- Subjects
- Humans, Cohort Studies, Prospective Studies, Syndrome, Monocytes, HLA-DR Antigens, Spinal Cord Injuries complications
- Abstract
Infections are prevalent after spinal cord injury (SCI), constitute the main cause of death and are a rehabilitation confounder associated with impaired recovery. We hypothesize that SCI causes an acquired lesion-dependent (neurogenic) immune suppression as an underlying mechanism to facilitate infections. The international prospective multicentre cohort study (SCIentinel; protocol registration DRKS00000122; n = 111 patients) was designed to distinguish neurogenic from general trauma-related effects on the immune system. Therefore, SCI patient groups differing by neurological level, i.e. high SCI [thoracic (Th)4 or higher]; low SCI (Th5 or lower) and severity (complete SCI; incomplete SCI), were compared with a reference group of vertebral fracture (VF) patients without SCI. The primary outcome was quantitative monocytic Human Leukocyte Antigen-DR expression (mHLA-DR, synonym MHC II), a validated marker for immune suppression in critically ill patients associated with infection susceptibility. mHLA-DR was assessed from Day 1 to 10 weeks after injury by applying standardized flow cytometry procedures. Secondary outcomes were leucocyte subpopulation counts, serum immunoglobulin levels and clinically defined infections. Linear mixed models with multiple imputation were applied to evaluate group differences of logarithmic-transformed parameters. Mean quantitative mHLA-DR [ln (antibodies/cell)] levels at the primary end point 84 h after injury indicated an immune suppressive state below the normative values of 9.62 in all groups, which further differed in its dimension by neurological level: high SCI [8.95 (98.3% confidence interval, CI: 8.63; 9.26), n = 41], low SCI [9.05 (98.3% CI: 8.73; 9.36), n = 29], and VF without SCI [9.25 (98.3% CI: 8.97; 9.53), n = 41, P = 0.003]. Post hoc analysis accounting for SCI severity revealed the strongest mHLA-DR decrease [8.79 (95% CI: 8.50; 9.08)] in the complete, high SCI group, further demonstrating delayed mHLA-DR recovery [9.08 (95% CI: 8.82; 9.38)] and showing a difference from the VF controls of -0.43 (95% CI: -0.66; -0.20) at 14 days. Complete, high SCI patients also revealed constantly lower serum immunoglobulin G [-0.27 (95% CI: -0.45; -0.10)] and immunoglobulin A [-0.25 (95% CI: -0.49; -0.01)] levels [ln (g/l × 1000)] up to 10 weeks after injury. Low mHLA-DR levels in the range of borderline immunoparalysis (below 9.21) were positively associated with the occurrence and earlier onset of infections, which is consistent with results from studies on stroke or major surgery. Spinal cord injured patients can acquire a secondary, neurogenic immune deficiency syndrome characterized by reduced mHLA-DR expression and relative hypogammaglobulinaemia (combined cellular and humoral immune deficiency). mHLA-DR expression provides a basis to stratify infection-risk in patients with SCI., (© The Author(s) 2023. Published by Oxford University Press on behalf of the Guarantors of Brain.)
- Published
- 2023
- Full Text
- View/download PDF
10. A German Study Comparing Standard Wire Localization With Magnetic Seed Localization of Non-palpable Breast Lesions.
- Author
-
Kühn F, Simon CEE, Aliyeva I, KUßMAUL J, GROß J, Schweizerhof O, Blohmer JU, and Karsten MM
- Subjects
- Adult, Aged, Breast Neoplasms therapy, Diagnostic Imaging, Female, Humans, Mammography methods, Mastectomy, Segmental, Middle Aged, Neoplasm Staging, Tumor Burden, Breast Neoplasms diagnostic imaging, Breast Neoplasms pathology
- Abstract
Background: Exact localization of non-palpable breast lesions is necessary to ensure that the correct lesion is removed. Conventional methods come with several disadvantages., Patients and Methods: We compared 28 patients who underwent breast-conserving surgery for a non-palpable lesion. By surgeon choice, 14 patients were assigned to undergo magnetic seed localization and 14 underwent standard wire localization. The primary outcome was the operative time, and secondary outcome was the patient pain level., Results: The mean age was 52±10 (SD) years in the seed arm, and 55±13 years in the wire arm. The median time from skin incision to tumor extraction was not significantly different between the two groups. Patients in the wire localized group significantly more often reported pain during coughing/breathing, movement, and sleep., Conclusion: Using seed localization at Charité Breast Center did not lead to a significant decrease in operative time but might allow time savings once established, while increasing patient comfort and reducing organizational burden., (Copyright© 2020, International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved.)
- Published
- 2020
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.