1
|
Duwe G, Boehm K, Becker G, Ruckes C, Sparwasser P, Haack M, Dotzauer R, Thomas A, Mager R, Tsaur I, Neumann CCM, Feick G, Carl G, Brandt MP, Haferkamp A, Höfner T. Individualized center-based analysis of urinary and sexual functional outcome after radical prostatectomy based on the prostate cancer outcome study: a post hoc pathway to patient outcome measurement analysis for quality improvement. World J Urol 2024; 42:236. [PMID: 38619659 DOI: 10.1007/s00345-024-04950-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Accepted: 02/08/2024] [Indexed: 04/16/2024] Open
Abstract
PURPOSE We evaluate differences of patient-reported outcome measurements (PROM) based urinary continence and sexual function 12 months after radical prostatectomy (RPE) based on perioperative, surgical, and patient-specific characteristics in a large European academic urology center. MATERIALS AND METHODS All men enrolled in the Prostate Cancer Outcome Study (PCO) study who were treated with RPE between 2017 and 2021 completed EPIC-26 information surveys before and 12 months after RPE. Survey data were linked to clinical data of our institution. Logistic regression analyses were performed to examine the correlation between individual surgeons, patient characteristics, patient clinical data, and their urinary continence and sexual function. RESULTS In total, data of 429 men were analyzed: unstratified mean (SD) EPIC-26 domain score for urinary function decreased from 93.3 (0.7) to 60.4 (1.5) one year after RPE, respectively for sexual function from 64.95 (1.6) to 23.24 (1.1). Patients with preoperative adequate urinary function (EPIC-26 score > 80) reported significantly different mean urinary function scores between 53.35 (28.88) and 66.25 (25.15), p= 0.001, stratified by surgeons experience. On binary logistic regression analyses, only nerve sparing techniques (OR: 1,83, 95% CI: 1.01;3.21; p = 0.045) and low body mass index (OR: 0.91, CI: 0.85;0.99, p= 0.032) predicted adequate postoperative urinary function. CONCLUSIONS The results show how using provider-specific data from a larger cohort study enables to develop institution-specific analysis for functional outcomes after RPE. These models can be used for internal quality improvement as well as enhanced and provider-specific patient communication and shared decision making.
Collapse
Affiliation(s)
- Gregor Duwe
- Department of Urology and Pediatric Urology, University Medical Center Johannes Gutenberg University Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany.
| | - Katharina Boehm
- Department of Urology, University Hospital Carl Gustav-Carus, TU Dresden, 01307, Dresden, Germany
| | - Gerrit Becker
- Department of Urology and Pediatric Urology, University Medical Center Johannes Gutenberg University Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany
| | - Christian Ruckes
- Interdisciplinary Center for Clinical Trials Mainz, University Medical Center Johannes Gutenberg University Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany
| | - Peter Sparwasser
- Department of Urology and Pediatric Urology, University Medical Center Johannes Gutenberg University Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany
| | - Maximilian Haack
- Department of Urology and Pediatric Urology, University Medical Center Johannes Gutenberg University Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany
| | - Robert Dotzauer
- Department of Urology and Pediatric Urology, University Medical Center Johannes Gutenberg University Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany
| | - Anita Thomas
- Department of Urology and Pediatric Urology, University Medical Center Johannes Gutenberg University Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany
| | - Rene Mager
- Department of Urology and Pediatric Urology, University Medical Center Johannes Gutenberg University Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany
| | - Igor Tsaur
- Department of Urology and Pediatric Urology, University Medical Center Johannes Gutenberg University Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany
| | - Christopher C M Neumann
- Department of Hematology, Oncology and Tumor Immunology, Charité-Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, 10117, Berlin, Germany
| | - Günther Feick
- Federal Association of German Prostate Cancer Patient Support Groups, Thomas-Mann Strasse 40, 55311, Bonn, Germany
| | - Günter Carl
- Federal Association of German Prostate Cancer Patient Support Groups, Thomas-Mann Strasse 40, 55311, Bonn, Germany
| | - Maximilian Peter Brandt
- Department of Urology and Pediatric Urology, University Medical Center Johannes Gutenberg University Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany
| | - Axel Haferkamp
- Department of Urology and Pediatric Urology, University Medical Center Johannes Gutenberg University Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany
| | - Thomas Höfner
- Department of Urology and Pediatric Urology, University Medical Center Johannes Gutenberg University Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany
- Department of Urology, Ordensklinikum Linz Elisabethinen, Fadingerstrasse 1, 4020, Linz, Austria
| |
Collapse
|
2
|
Siemens W, Bantle G, Ebner C, Blümle A, Becker G, Schwarzer G, Meerpohl JJ. Evaluation of 'implications for research' statements in systematic reviews of interventions in advanced cancer patients - a meta-research study. BMC Med Res Methodol 2023; 23:302. [PMID: 38124124 PMCID: PMC10731681 DOI: 10.1186/s12874-023-02124-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 12/08/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Implications for research (IfR) sections are an important part of systematic reviews (SRs) to inform health care researchers and policy makers. PRISMA 2020 recommends reporting IfR, while Cochrane Reviews require a separate chapter on IfR. However, it is unclear to what extent SRs discuss IfR. We aimed i) to assess whether SRs include an IfR statement and ii) to evaluate which elements informed IfR statements. METHODS We conducted a meta-research study based on SRs of interventions in advanced cancer patients from a previous project (CRD42019134904). As suggested in the Cochrane Handbook, we assessed if the following predefined variables were referred to in IfR statements: patient, intervention, control, outcome (PICO) and study design; concepts underlying Grading of Recommendations, Assessment, Development and Evaluation (GRADE) domains: risk of bias, inconsistency, indirectness, imprecision, publication bias. Data were independently extracted by three reviewers after piloting the data extraction form. Discrepancies were resolved in weekly in-depth discussions. RESULTS We included 261 SRs. The majority evaluated a pharmacological intervention (n = 244, 93.5%); twenty-nine were Cochrane Reviews (11.1%). Four out of five SRs included an IfR statement (n = 210, 80.5%). IfR statements commonly addressed 'intervention' (n = 121, 57.6%), 'patient ' (n = 113, 53.8%), and 'study design' (n = 107, 51.0%). The most frequent PICO and study design combinations were 'patient and intervention ' (n = 71, 33.8%) and 'patient, intervention and study design ' (n = 34, 16.2%). Concepts underlying GRADE domains were rarely used for informing IfR recommendations: 'risk of bias ' (n = 2, 1.0%), and 'imprecision ' (n = 1, 0.5%), 'inconsistency ' (n = 1, 0.5%). Additional elements informing IfR were considerations on cost effectiveness (n = 9, 4.3%), reporting standards (n = 4, 1.9%), and individual patient data meta-analysis (n = 4, 1.9%). CONCLUSION Although about 80% of SRs included an IfR statement, the reporting of PICO elements varied across SRs. Concepts underlying GRADE domains were rarely used to derive IfR. Further work needs to assess the generalizability beyond SRs in advanced cancer patients. We suggest that more specific guidance on which and how IfR elements to report in SRs of interventions needs to be developed. Utilizing PICO elements and concepts underlying GRADE according to the Cochrane Handbook to state IfR seems to be a reasonable approach in the interim. REGISTRATION CRD42019134904.
Collapse
Affiliation(s)
- W Siemens
- Institute for Evidence in Medicine, Faculty of Medicine, Medical Center, University of Freiburg, University of Freiburg, Freiburg, Germany, Breisacher Str. 86, 79110.
- Cochrane Germany, Cochrane Germany Foundation, Freiburg, Germany.
| | - G Bantle
- Institute for Evidence in Medicine, Faculty of Medicine, Medical Center, University of Freiburg, University of Freiburg, Freiburg, Germany, Breisacher Str. 86, 79110
| | - C Ebner
- Institute for Evidence in Medicine, Faculty of Medicine, Medical Center, University of Freiburg, University of Freiburg, Freiburg, Germany, Breisacher Str. 86, 79110
| | - A Blümle
- Clinical Trials Unit, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany
| | - G Becker
- Department of Palliative Medicine, Faculty of Medicine, University Medical Center Freiburg, University of Freiburg, Freiburg, Germany
| | - G Schwarzer
- Institute of Medical Biometry and Statistics, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany
| | - J J Meerpohl
- Institute for Evidence in Medicine, Faculty of Medicine, Medical Center, University of Freiburg, University of Freiburg, Freiburg, Germany, Breisacher Str. 86, 79110
- Cochrane Germany, Cochrane Germany Foundation, Freiburg, Germany
| |
Collapse
|
3
|
Andresen V, Becker G, Frieling T, Goebel-Stengel M, Gundling F, Herold A, Karaus M, Keller J, Kim M, Klose P, Krammer H, Kreis ME, Kuhlbusch-Zicklam R, Langhorst J, Layer P, Lenzen-Großimlinghaus R, Madisch A, Mönnikes H, Müller-Lissner S, Rubin D, Schemann M, Schwille-Kiuntke J, Stengel A, Storr M, van der Voort I, Voderholzer W, Wedel T, Wirz S, Witzigmann H, Pehl C. Aktualisierte S2k-Leitlinie chronische Obstipation der Deutschen Gesellschaft für Gastroenterologie, Verdauungs- und Stoffwechselkrankheiten (DGVS) und der Deutschen Gesellschaft für Neurogastroenterologie & Motilität (DGNM) – April 2022 – AWMF-Registriernummer: 021–019. Z Gastroenterol 2022; 60:1528-1572. [PMID: 36223785 DOI: 10.1055/a-1880-1928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- V Andresen
- Medizinische Klinik, Israelitisches Krankenhaus, Hamburg, Deutschland
| | - G Becker
- Klinik für Palliativmedizin, Freiburg, Deutschland
| | - T Frieling
- Medizinische Klinik II, Helios-Klinikum Krefeld, Krefeld, Deutschland
| | | | - F Gundling
- Medizinische Klinik II (Gastroenterologie, Gastroenterologische Onkologie, Hepatologie, Diabetologie, Stoffwechsel, Infektiologie), Klinikum am Bruderwald, Bamberg, Deutschland
| | - A Herold
- Sozialstiftung Bamberg, End- und Dickdarm-Zentrum Mannheim, Mannheim, Deutschland
| | - M Karaus
- Abt. Innere Medizin, Evang. Krankenhaus Göttingen-Weende, Göttingen, Deutschland
| | - J Keller
- Medizinische Klinik, Israelitisches Krankenhaus, Hamburg, Deutschland
| | - M Kim
- Klinik und Poliklinik für Allgemein-, Viszeral-, Transplantations-, Gefäß- und Kinderchirurgie (Chirurgische Klinik I) des Universitätsklinikums, Zentrum Operative Medizin (ZOM), Würzburg, Deutschland
| | - P Klose
- Universität Duisburg-Essen, Medizinische Fakultät, Essen, Deutschland
| | - H Krammer
- Sozialstiftung Bamberg, End- und Dickdarm-Zentrum Mannheim, Mannheim, Deutschland
| | - M E Kreis
- Klinik für Allgemein-, Viszeral- und Gefäßchirurgie, Charité - Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Deutschland
| | | | - J Langhorst
- Knappschafts-Krankenhaus, Essen, Deutschland
| | - P Layer
- Medizinische Klinik, Israelitisches Krankenhaus, Hamburg, Deutschland
| | | | - A Madisch
- Klinik für Gastroenterologie, interventionelle Endoskopie und Diabetologie, Klinikum Siloah-Oststadt-Heidehaus, Hannover, Deutschland
| | - H Mönnikes
- Klinik für Innere Medizin, Martin-Luther-Krankenhaus, Berlin, Deutschland
| | | | - D Rubin
- Klinik für Innere Medizin Schwerpunkt Gastroenterologie, DRK Kliniken Berlin Mitte, Berlin, Deutschland.,Klinik für Innere Medizin mit Schwerpunkt Gastroenterologie, Vivantes Klinikum Spandau, Spandau, Deutschland
| | - M Schemann
- Lehrstuhl für Humanbiologie, TU München, Freising, Deutschland
| | - J Schwille-Kiuntke
- Innere Medizin VI Psychosomat. Medizin u. Psychotherapie, Universitätsklinikum Tübingen, Tübingen, Deutschland.,Institut für Arbeitsmedizin, Sozialmedizin und Versorgungsforschung, Universitätsklinikum Tübingen, Tübingen, Deutschland
| | - A Stengel
- Medizinische Klinik mit Schwerpunkt Psychosomatik, Charité - Universitätsmedizin Berlin, Berlin, Deutschland
| | - M Storr
- Zentrum für Endoskopie, Starnberg, Deutschland
| | - I van der Voort
- Klinik für Innere Medizin Gastroenterologie und Diabetologie, Jüdisches Krankenhaus Berlin, Berlin, Deutschland
| | | | - T Wedel
- Anatomisches Institut, Universität Kiel, Kiel, Deutschland
| | - S Wirz
- Cura Krankenhaus Bad Honnef, Bad Honnef, Deutschland
| | - H Witzigmann
- Klinik für Allgemein- und Viszeralchirurgie, Krankenhaus Dresden-Friedrichstadt, Dresden, Deutschland
| | - C Pehl
- Medizinische Klinik, Krankenhaus Vilsbiburg, Vilsbiburg, Deutschland
| | | | | | | | | | | | | | | | | |
Collapse
|
4
|
Bausewein C, Hodiamont F, Berges N, Ullrich A, Gerlach C, Oechsle K, Pauli B, Weber J, Stiel S, Schneider N, Krumm N, Rolke R, Gebel C, Jansky M, Nauck F, Wedding U, van Oorschot B, Roch C, Werner L, Fischer M, Schallenburger M, Reuters MC, Schwartz J, Neukirchen M, Gülay A, Maus K, Jaspers B, Radbruch L, Heckel M, Klinger I, Ostgathe C, Kriesen U, Junghanß C, Lehmann E, Gesell D, Gauder S, Boehlke C, Becker G, Pralong A, Strupp J, Leisse C, Schloesser K, Voltz R, Jung N, Simon ST. National strategy for palliative care of severely ill and dying people and their relatives in pandemics (PallPan) in Germany - study protocol of a mixed-methods project. BMC Palliat Care 2022; 21:10. [PMID: 35027041 PMCID: PMC8756412 DOI: 10.1186/s12904-021-00898-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 12/17/2021] [Indexed: 12/15/2022] Open
Abstract
Background In the SARS-CoV-2 pandemic, general and specialist Palliative Care (PC) plays an essential role in health care, contributing to symptom control, psycho-social support, and providing support in complex decision making. Numbers of COVID-19 related deaths have recently increased demanding more palliative care input. Also, the pandemic impacts on palliative care for non-COVID-19 patients. Strategies on the care for seriously ill and dying people in pandemic times are lacking. Therefore, the program ‘Palliative care in Pandemics’ (PallPan) aims to develop and consent a national pandemic plan for the care of seriously ill and dying adults and their informal carers in pandemics including (a) guidance for generalist and specialist palliative care of patients with and without SARS-CoV-2 infections on the micro, meso and macro level, (b) collection and development of information material for an online platform, and (c) identification of variables and research questions on palliative care in pandemics for the national pandemic cohort network (NAPKON). Methods Mixed-methods project including ten work packages conducting (online) surveys and qualitative interviews to explore and describe i) experiences and burden of patients (with/without SARS-CoV-2 infection) and their relatives, ii) experiences, challenges and potential solutions of health care professionals, stakeholders and decision makers during the SARS-CoV-2 pandemic. The work package results inform the development of a consensus-based guidance. In addition, best practice examples and relevant literature will be collected and variables for data collection identified. Discussion For a future “pandemic preparedness” national and international recommendations and concepts for the care of severely ill and dying people are necessary considering both generalist and specialist palliative care in the home care and inpatient setting. Supplementary Information The online version contains supplementary material available at 10.1186/s12904-021-00898-w.
Collapse
|
5
|
Siemens W, Meerpohl JJ, Rohe MS, Buroh S, Schwarzer G, Becker G. Reevaluation of statistically significant meta-analyses in advanced cancer patients using the Hartung-Knapp method and prediction intervals - a methodological study. Res Synth Methods 2021; 13:330-341. [PMID: 34932271 DOI: 10.1002/jrsm.1543] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 12/14/2021] [Accepted: 12/15/2021] [Indexed: 11/12/2022]
Abstract
Using the Hartung-Knapp method and 95% prediction intervals (PIs) in random-effects meta-analyses is recommended by experts but rarely applied. Therefore, we aimed to reevaluate statistically significant meta-analyses using the Hartung-Knapp method and 95% PIs. In this methodological study three databases were searched from January 2010 to July 2019. We included systematic reviews reporting a statistically significant meta-analysis of at least four randomized controlled trials in advanced cancer patients using either a fixed-effect or random-effects model. We investigated the impact of switching from fixed-effect to random-effects meta-analysis and of using the recommended Hartung-Knapp method in random-effects meta-analyses. Furthermore, we calculated 95% PIs for all included meta-analyses. 6234 hits were identified, of which 261 statistically significant meta-analyses were included. Our recalculations of these 261 meta-analyses produced statistically significant results in 132 of 138 fixed-effect and 114 of 123 random-effects meta-analyses. When switching to a random-effects model, 19 of 132 fixed-effect meta-analyses (14.4%) were no longer statistically significant. Using the Hartung-Knapp method in random-effects meta-analyses resulted in 34 of 114 non-significant meta-analyses (29.8%). In the full sample (N = 261), the null effect was included by the 95% PI in 195 (74.7%) and the opposite effect (e.g., hazard ratio 0.5, opposite effect 2) in 98 meta-analyses (37.5%). Using the Hartung-Knapp method and PIs substantially influenced the interpretation of many published, statistically significant meta-analyses. We strongly encourage researchers to check if using the Hartung-Knapp method and reporting 95% PIs is appropriate in random-effects meta-analyses. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- W Siemens
- Institute for Evidence in Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Cochrane Germany, Cochrane Germany Foundation, Freiburg, Germany.,Clinic for Palliative Care, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - J J Meerpohl
- Institute for Evidence in Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Cochrane Germany, Cochrane Germany Foundation, Freiburg, Germany
| | - M S Rohe
- Clinic for Palliative Care, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - S Buroh
- Library of the Center of Surgery, University Medical Center, Freiburg, Germany
| | - G Schwarzer
- Institute of Medical Biometry and Statistics, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany
| | - G Becker
- Clinic for Palliative Care, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| |
Collapse
|
6
|
Javelot H, Meyer G, Becker G, Post G, Runge V, Pospieszynski P, Schneiderlin T, Armand-Branger S, Michel B, Weiner L, Faria CGF, Drapier D, Fakra E, Fossati P, Haffen E, Yrondi A, Hingray C. [Anticholinergic scales: Use in psychiatry and update of the anticholinergic impregnation scale]. Encephale 2021; 48:313-324. [PMID: 34876278 DOI: 10.1016/j.encep.2021.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 09/01/2021] [Accepted: 09/01/2021] [Indexed: 11/28/2022]
Abstract
Anticholinergic properties are well known to prescribers, notably in mental health, as a therapeutic strategy for i.e. extrapyramidal syndrome but also as a source of numerous adverse side effects. Herein, we propose a narrative literature review describing: (i) cholinergic pharmacology and anticholinergic properties; (ii) the importance of anticholinergic therapeutic properties in psychiatry; (iii) the existing anticholinergic drug scales and their usage limitations in Psychiatry and; last (iv) an update to the anticholinergic drug impregnation scale, designed for the French psychiatry practice. The anticholinergic side effects can appear both in the peripheral level (dry mouth, constipation, etc.) and in the central level (especially as cognitive deficits). Many of the so called « anticholinergic » drugs are in fact entirely or mostly antimuscarinic and act essentially as parasympathetic system antagonists. Overall, anticholinergic/antimuscarinic side effects are usually attributed to psychotropic medications: to certain antipsychotics, notably classical neuroleptics such as phenothiazine and also to tricyclic antidepressants. In practice, the impact of anticholinergic toxicity treatments is often highlighted due to their excessively prolonged use in patients on antipsychotics. Interestingly, these antipsychotic treatments are better known for their anticholinergic side effects, especially cognitive ones, with an early onset specially in elder patients and/or in the case of polymedication. In order to evaluate anticholinergic side effects, metrics known as anticholinergic burden scales were created in the last few decades. Nowadays, 13 different scales are documented and accepted by the international academic community, but only three of them are commonly used: the Anticholinergic Drug Scale (ADS), the Anticholinergic Risk Scale (ARS) and the Anticholinergic Burden Scale (ACB). All of them are based on a similar principle, consisting of grading treatments individually, and they are normally scored from 0 - no presence of side effects - to 3 - anticholinergic effects considered to be strong or very strong. Using these scales enables the calculation of the so-called "anticholinergic burden", which corresponds to the cumulative effect of using multiple medications with anticholinergic properties simultaneously. The application of anticholinergic scales to patients with psychiatric disorders has revealed that schizophrenic patients seem to be especially sensitive to anticholinergic cognitive side effects, while elder and depressed patients were more likely to show symptoms of dementia when exposed to higher anticholinergic burden. Unfortunately, these tools appear to have a low parallel reliability, and so they might induce large differences when assessing side effects predictability. In addition, the capacity of these scales to predict central adverse effects is limited due to the fact they poorly or do not differentiate, the ability of treatments to cross the blood-brain barrier. Finally, one last limitation on the validity of these scales is prescription posology is not accounted for side effects considered to be dose dependent. Recently, the MARANTE (Muscarinic Acetylcholine Receptor ANTagonist Exposure) scale has incorporated an anticholinergic burden weighting by posology. Nevertheless, this new model can be criticized, due to the limited number of medications included and due to testing a limited number of potency ranges and dosages for each treatment. Herein, we propose an update to the Anticholinergic Impregnation Scale, developed specifically for the French Psychiatry practice. The scale validation was based on an evaluation of the prescriptions correcting anticholinergic peripheral side effects (constipation, xerostomia and xeropthalmia). This indirect evaluation allowed us to show patients with an anticholinergic impregnation score higher than 5 received significantly more treatments for constipation and xerostomia. This strategy bypasses the bias of a cognitive evaluation in patients with severe mental health disorders. Moreover, the relevance of a tool developed specifically for French psychiatry is justified by the fact that some highly prescribed treatments for mental illness in France (cyamemazine and tropatemine) are strong anticholinergics, and also by the fact they are rarely included in the existing anticholinergic scales. This update of the original scale, published in 2017, includes information whether prescribed drugs cross the blood-brain barrier and thus makes possible a more accurate assessment when evaluating anticholinergic central side effects. Finally, the anticholinergic impregnation scale will soon be integrated into a prescription help software, which is currently being developed to take into consideration dose dependent adverse effects.
Collapse
Affiliation(s)
- H Javelot
- Établissement public de santé Alsace Nord, 67170 Brumath, France; Laboratoire de toxicologie et pharmacologie neuro cardiovasculaire, université de Strasbourg, 67084 Strasbourg cedex, France.
| | - G Meyer
- Établissement public de santé Alsace Nord, 67170 Brumath, France
| | - G Becker
- Laboratoire de toxicologie et pharmacologie neuro cardiovasculaire, université de Strasbourg, 67084 Strasbourg cedex, France
| | - G Post
- Centre hospitalier de Rouffach, 68250 Rouffach, France; GIP Symaris, 68250 Rouffach, France
| | - V Runge
- Laboratoire de mathématiques et modélisation d'Evry (LaMME), UEVE - université Paris-Saclay, 91037 Evry cedex, France
| | | | | | - S Armand-Branger
- ServicePharmacie, Centre de santé mentale Angevin (CESAME), 49130 Sainte-Gemmes-sur-Loire, France
| | - B Michel
- ServicePharmacie, CHU de Strasbourg, 67000 Strasbourg, France
| | - L Weiner
- Clinique de psychiatrie, CHU de Strasbourg, 67000 Strasbourg, France; Laboratoire de psychologie des cognitions, université de Strasbourg, 67000 Strasbourg, France
| | - C G F Faria
- Institute of Psychiatry, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brésil
| | - D Drapier
- Pôle hospitalo-universitaire de psychiatrie adulte, centre hospitalier Guillaume-Régnier, 35700 Rennes, France; EA 4712, comportements et noyaux gris centraux, université de Rennes 1, 35000 Rennes, France
| | - E Fakra
- Pôle universitaire de psychiatrie, CHU de Saint-Étienne, 42055 Saint-Étienne cedex 2, France
| | - P Fossati
- Inserm U1127, ICM, service de psychiatrie adultes, groupe hospitalier pitié Salpêtrière, Sorbonne université, AP-HP, 75013 Paris, France
| | - E Haffen
- CIC-1431 Inserm, service de psychiatrie, CHU de Besançon, 25000 Besançon, France; Laboratoire de Neurosciences, université de Franche-Comté, 25000 Besançon, France
| | - A Yrondi
- Service de Psychiatrie et de Psychologie Médicale, CHU de Toulouse, Hôpital Purpan, 31059 Toulouse, France; Centre Expert Dépression Résistante FondaMental, CHU de Toulouse, Hôpital Purpan, 31059 Toulouse, France; ToNIC Toulouse NeuroImaging Centre, Université de Toulouse, INSERM, UPS, 31024 Toulouse, France
| | - C Hingray
- Pôle hospitalo-universitaire de psychiatrie d'adultes du Grand Nancy, Centre psychothérapique de Nancy, 54520 Laxou, France; Département de neurologie, CHU de Nancy, 54000 Nancy, France
| |
Collapse
|
7
|
Siemens W, Schwarzer G, Rohe MS, Buroh S, Meerpohl JJ, Becker G. Reply to letter to the editor by Peters: knowledge transfer is the key. J Clin Epidemiol 2021; 138:235-236. [PMID: 34166756 DOI: 10.1016/j.jclinepi.2021.05.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 05/25/2021] [Indexed: 10/21/2022]
Affiliation(s)
- W Siemens
- Clinic for Palliative Care, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
| | - G Schwarzer
- Institute of Medical Biometry and Statistics, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany
| | - M S Rohe
- Clinic for Palliative Care, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - S Buroh
- Library of the Center of Surgery, University Medical Center, Freiburg, Germany
| | - J J Meerpohl
- Institute for Evidence in Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.; Cochrane Germany, Cochrane Germany Foundation, Freiburg, Germany
| | - G Becker
- Clinic for Palliative Care, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| |
Collapse
|
8
|
|
9
|
Becker G, Da Silva S, Sabo A, Kemmel V, Monassier L. The 5-hydroxytryptamine receptor type 4 regulates blood-brain-barrier permeability. Archives of Cardiovascular Diseases Supplements 2021. [DOI: 10.1016/j.acvdsp.2021.04.093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
10
|
Becker G, Martin T, Sabo AN, Bertrand F, Hutt A, Ayme-Dietrich E, Michel B, Monassier L, Gourieux B. Impact of the COVID-19 pandemic on clinical research in hospitals: observational study in the first epicenter of the epidemic during the general lockdown in France. Eur Rev Med Pharmacol Sci 2021; 25:1158-1162. [PMID: 33577072 DOI: 10.26355/eurrev_202101_24686] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The COVID-19 epidemic has had a strong impact on the entire healthcare sector in France with priority being given to research for new therapeutic options for COVID-19. Nevertheless, continuity of care for patients suffering from other diseases represents a crucial challenge, and clinical research is no exception in this respect. This study aims to assess the impact of the strict Covid-19 lockdown on non-Covid-19 clinical research in the French University Hospital of Strasbourg. MATERIALS AND METHODS Clinical research activity (non-Covid-19) from the point of view of pharmacy department was estimated and compared to the pre-lockdown period. The impact of lockdown was assessed through five indicators: site initiation visits, the initiation of experimental therapies in non-Covid-19 patients, the delivery of non-Covid-19 investigational medical products, the number of drug shipments to patients' homes, and the number of monitoring or closure visits. RESULTS During the study period, the number of site initiation visits decreased by 90%, total inclusions by 72%, and delivery of investigational medical products by 30%. During the lockdown period, 15 treatments were sent to patients' homes. Monitoring activity decreased by 98%. CONCLUSIONS Although the COVID-19 outbreak has created an incredible momentum in the field of clinical research, research not focused on SaRS-CoV-2 has suffered greatly from this situation. The impact on patients is difficult to estimate but should be further investigated.
Collapse
Affiliation(s)
- G Becker
- Pôle Pharmacie-Pharmacologie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.
| | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Tewfik E, Kus T, Vinet A, Stürmer M, Becker G, Laroussi L. EASILY MEASURED MARKERS OF SYNCOPE SEVERITY PREDICT VASOVAGAL SYNCOPE RECURRENCE DESPITE CLOSED-LOOP STIMULATION. Can J Cardiol 2020. [DOI: 10.1016/j.cjca.2020.07.100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
|
12
|
Abstract
IntroductionEvery theory that explains psychopathology refers to different aspects of mental pain whether it regards annihilation anxiety, fragmentation of the self or feelings of intolerable anguish. The concept of mental pain has proved to be an important symptom in mood disorders in general and suicide in particular (Orbach et al., 2004; Levi et al., 2010; Levinger et al., 2015). Combining the understanding that mental pain is as a part of all forms of psychopathology with the growing interest in assessing therapeutic processes via outcome measures has led to the assumption that the tolerance and severity of mental pain could become powerful outcome measurement. The aim of this study is to assess the Mental Pain Scale (OMMP) and Tolerance to Mental Pain Scale (TMPS) as outcome measurement and to learn about their capabilities to distinguish between different psychopathologies.ObjectiveThe first objective would be to examine patterns of mental pain subscales in different psychopathologies. The second objective is to assess the OMMP and TMPS as outcome measurements.MethodTwo hundred and thirty outpatients were administered a clinical questionnaire battery composed of eight questionnaires. The patients were to fill these questionnaires every 3 months for one year or until the end of their therapy.ResultsWe will present preliminary findings regarding the expressions of mental pain in different kinds of psychopathology and results of 3 months follow-up.ConclusionTolerance and severity of mental pain are a vital to the assessment of psychopathology and should be used as outcome measurement of therapeutic process.Disclosure of interestThe authors have not supplied their declaration of competing interest.
Collapse
|
13
|
Tewfik E, Kus T, Laroussi L, Sturmer M, Becker G, Vinet A. INCIDENCE AND CHARACTERISTICS OF SLEEP-RELATED SYNCOPE IN PATIENTS WITH VASOVAGAL SYNCOPE. Can J Cardiol 2019. [DOI: 10.1016/j.cjca.2019.07.579] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
14
|
Kus T, Berkovitz A, Dubuc V, Sturmer M, Becker G, Vinet A, Mahaddine O, Nadeau R. EXPEDIENT DETECTION OF PAROXYSMAL ATRIAL FIBRILLATION WITH PROLONGED EARLY MONITORING POST CRYPTOGENIC ISCHEMIC CEREBROVASCULAR EVENT. Can J Cardiol 2019. [DOI: 10.1016/j.cjca.2019.07.582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
15
|
Adebahr S, Nestle U, Gkika E, Kaier K, Schimek-Jasch T, Hechtner M, Momm F, Gaertner J, Becker G, Grosu A. P2.17-19 Quality of Life After Pulmonary Stereotactic Fractionated Radiotherapy: Longterm Results of the Phase II STRIPE Trial. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
16
|
Klement RJ, Abbasi-Senger N, Adebahr S, Alheid H, Allgaeuer M, Becker G, Blanck O, Boda-Heggemann J, Brunner T, Duma M, Eble MJ, Ernst I, Gerum S, Habermehl D, Hass P, Henkenberens C, Hildebrandt G, Imhoff D, Kahl H, Klass ND, Krempien R, Lewitzki V, Lohaus F, Ostheimer C, Papachristofilou A, Petersen C, Rieber J, Schneider T, Schrade E, Semrau R, Wachter S, Wittig A, Guckenberger M, Andratschke N. The impact of local control on overall survival after stereotactic body radiotherapy for liver and lung metastases from colorectal cancer: a combined analysis of 388 patients with 500 metastases. BMC Cancer 2019; 19:173. [PMID: 30808323 PMCID: PMC6390357 DOI: 10.1186/s12885-019-5362-5] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Accepted: 02/11/2019] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND The aim of this analysis was to model the effect of local control (LC) on overall survival (OS) in patients treated with stereotactic body radiotherapy (SBRT) for liver or lung metastases from colorectal cancer. METHODS The analysis is based on pooled data from two retrospective SBRT databases for pulmonary and hepatic metastases from 27 centers from Germany and Switzerland. Only patients with metastases from colorectal cancer were considered to avoid histology as a confounding factor. An illness-death model was employed to model the relationship between LC and OS. RESULTS Three hundred eighty-eight patients with 500 metastatic lesions (lung n = 209, liver n = 291) were included and analyzed. Median follow-up time for local recurrence assessment was 12.1 months. Ninety-nine patients with 112 lesions experienced local failure. Seventy-one of these patients died after local failure. Median survival time was 27.9 months in all patients and 25.4 months versus 30.6 months in patients with and without local failure after SBRT. The baseline risk of death after local failure exceeds the baseline risk of death without local failure at 10 months indicating better survival with LC. CONCLUSION In CRC patients with lung or liver metastases, our findings suggest improved long-term OS by achieving metastatic disease control using SBRT in patients with a projected OS estimate of > 12 months.
Collapse
Affiliation(s)
- Rainer J Klement
- Department of Radiation Oncology, Leopoldina Hospital Schweinfurt, Schweinfurt, Germany
| | - N Abbasi-Senger
- Department of Radiation Oncology, University Hospital Jena, Jena, Germany
| | - S Adebahr
- Department of Radiation Oncology, University Hospital Freiburg, Freiburg, Germany
| | - H Alheid
- Strahlentherapie Bautzen, Bautzen, Germany
| | - M Allgaeuer
- Department of Radiation Oncology, Hospital Barmherzige Brueder, Regensburg, Germany
| | - G Becker
- RadioChirurgicum CyberKnife Suedwest, Goeppingen, Germany
| | - O Blanck
- Department of Radiation Oncology Universitaetsklinikum Schleswig-Holstein, Luebeck, Germany
| | - J Boda-Heggemann
- Department of Radiation Oncology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
| | - T Brunner
- Department of Radiation Oncology, University Hospital Freiburg, Freiburg, Germany
| | - M Duma
- Department of Radiation Oncology, Klinikum rechts der Isar- Technische Universitaet Muenchen, Munich, Germany
| | - M J Eble
- Department of Radiation Oncology, University Hospital Aachen, Aachen, Germany
| | - I Ernst
- Department of Radiation Oncology, University Hospital Muenster, Muenster, Germany
| | - S Gerum
- Department of Radiation Oncology, Ludwig Maximilians University Munich, Munich, Germany
| | - D Habermehl
- Department of Radiation Oncology, Klinikum rechts der Isar- Technische Universitaet Muenchen, Munich, Germany.,Department of Radiation Oncology, University Hospital Heidelberg, Heidelberg, Germany
| | - P Hass
- Department of Radiation Oncology, University Hospital Magdeburg, Magdeburg, Germany
| | - C Henkenberens
- Department of Radiotherapy and Special Oncology, Medical School Hannover, Hanover, Germany
| | - G Hildebrandt
- Department of Radiation Oncology, University of Rostock, Rostock, Germany
| | - D Imhoff
- Department of Radiation Oncology, University Hospital Frankfurt, Frankfurt, Germany
| | - H Kahl
- Department of Radiation Oncology, Hospital Augsburg, Augsburg, Germany
| | - N D Klass
- Department of Radiation Oncology, University Hospital Bern, Bern, Switzerland
| | - R Krempien
- Department of Radiation Oncology, Helios Klinikum Berlin Buch, Berlin, Germany
| | - V Lewitzki
- Department of Radiation Oncology, University Hospital Wuerzburg, Wuerzburg, Germany
| | - F Lohaus
- Department of Radiation Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - C Ostheimer
- Department of Radiation Oncology, University Hospital Halle, Halle, Germany
| | - A Papachristofilou
- Department of Radiation Oncology, University Hospital Hamburg, Hamburg, Germany
| | - C Petersen
- Department of Radiation Oncology, University Hospital Basel, Basel, Switzerland
| | - J Rieber
- Department of Radiation Oncology, University Hospital Heidelberg, Heidelberg, Germany
| | | | - E Schrade
- Department of Radiation Oncology, Hospital Heidenheim, Heidenheim, Germany
| | - R Semrau
- Department of Radiation Oncology, University Hospital of Cologne, Cologne, Germany
| | - S Wachter
- Department of Radiation Oncology, Klinikum Passau, Passau, Germany
| | - A Wittig
- Department of Radiation Oncology, University Hospital Jena, Jena, Germany.,Department of Radiotherapy and Radiation Oncology, Philipps-University Marburg, University Hospital Giessen and Marburg, Marburg, Germany
| | - M Guckenberger
- Department of Radiation Oncology, University Hospital Zurich, University of Zurich, Rämistrasse 100, 8091, Zurich, Switzerland
| | - N Andratschke
- Department of Radiation Oncology, University Hospital Zurich, University of Zurich, Rämistrasse 100, 8091, Zurich, Switzerland.
| |
Collapse
|
17
|
Adebahr S, Nestle U, Kaier K, Gkika E, Schimek-Jasch T, Momm F, Becker G, Grosu A. Good Long-term Quality of Life (QOL) Preservation after Pulmonary Stereotactic Fractionated Radiation Therapy (SBRT) in Frail Patients: Prospective Phase II Stripe Trial. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.06.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
18
|
Benstoem F, Becker G, Firk J, Kaless M, Wuest D, Pinnekamp J, Kruse A. Elimination of micropollutants by activated carbon produced from fibers taken from wastewater screenings using hydrothermal carbonization. J Environ Manage 2018; 211:278-286. [PMID: 29408076 DOI: 10.1016/j.jenvman.2018.01.065] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 01/18/2018] [Accepted: 01/23/2018] [Indexed: 06/07/2023]
Abstract
Activated Carbon (AC) can be used to reduce organic micropollutants (OMPs) in wastewater treatment plants (WWTPs). While producing ACs conventionally still damages the environment, this can be reduced by using renewable raw material from waste streams und producing AC locally. In this study, fibers (toilet paper) were separated out of wastewater by screening WWTP influents in full scale and then used as a no-cost, carbon-rich and heavy metal-poor raw material to produce ACs. Pretreatment was hydrothermal carbonization (HTC). Thereafter, they were activated using KOH to generate activated carbons (HTC-ACs). Their functional groups were characterized using FT-IR, and the alteration of their chemical composition was traced by elementary analysis. Adsorption tests were performed with nitrogen (BET surface) and methylene blue as standard tests. The adsorption capacity was tested with WWTP effluent and the removal of UVA254 as a surrogate for OMP removal was measured. After HTC and activation 13-16% of the fibers dry mass was obtained as HTC-ACs. Higher dehydration and formation of aromatic structures on the HTC-ACs were detected with FT-IR as HTC and activation temperature increased. BET surface and methylene blue adsorption of some HTC-ACs was higher than the Reference AC. Nevertheless, their ability to reduce OMPs is still lower than the Reference AC due to the different nature of their functional groups and their microporous structure that is not fully accessible for OMPs in real wastewater. Further research has to be carried out to adjust the production process so as to obtain mesoporous HTC-ACs tailored to reduce OMP concentrations and to close the carbon loop within WWTPs.
Collapse
Affiliation(s)
- F Benstoem
- RWTH Aachen University, Institute for Environmental Engineering, Mies-van-der-Rohe-Str. 1, 52074 Aachen, Germany.
| | - G Becker
- University of Hohenheim, Institute of Agricultural Engineering, Chair of Conversion Technology and Life Cycle Assessment of Renewable Resources, Garbenstr. 9, 70599 Stuttgart, Germany
| | - J Firk
- RWTH Aachen University, Institute for Environmental Engineering, Mies-van-der-Rohe-Str. 1, 52074 Aachen, Germany
| | - M Kaless
- RWTH Aachen University, Institute for Environmental Engineering, Mies-van-der-Rohe-Str. 1, 52074 Aachen, Germany
| | - D Wuest
- University of Hohenheim, Institute of Agricultural Engineering, Chair of Conversion Technology and Life Cycle Assessment of Renewable Resources, Garbenstr. 9, 70599 Stuttgart, Germany
| | - J Pinnekamp
- RWTH Aachen University, Institute for Environmental Engineering, Mies-van-der-Rohe-Str. 1, 52074 Aachen, Germany
| | - A Kruse
- University of Hohenheim, Institute of Agricultural Engineering, Chair of Conversion Technology and Life Cycle Assessment of Renewable Resources, Garbenstr. 9, 70599 Stuttgart, Germany.
| |
Collapse
|
19
|
Adebahr S, Nestle U, Kaier K, Schimek-Jasch T, Gkika E, Momm F, Becker G, Grosu A. EP-1369: High local control for lung SBRT of comorbid patients: prospective monocenter phase II STRIPE trial. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31678-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
20
|
Andratschke N, Alheid H, Allgäuer M, Becker G, Blanck O, Boda-Heggemann J, Brunner T, Duma M, Gerum S, Guckenberger M, Hildebrandt G, Klement RJ, Lewitzki V, Ostheimer C, Papachristofilou A, Petersen C, Schneider T, Semrau R, Wachter S, Habermehl D. The SBRT database initiative of the German Society for Radiation Oncology (DEGRO): patterns of care and outcome analysis of stereotactic body radiotherapy (SBRT) for liver oligometastases in 474 patients with 623 metastases. BMC Cancer 2018; 18:283. [PMID: 29534687 PMCID: PMC5851117 DOI: 10.1186/s12885-018-4191-2] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 03/06/2018] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND The intent of this pooled analysis as part of the German society for radiation oncology (DEGRO) stereotactic body radiotherapy (SBRT) initiative was to analyze the patterns of care of SBRT for liver oligometastases and to derive factors influencing treated metastases control and overall survival in a large patient cohort. METHODS From 17 German and Swiss centers, data on all patients treated for liver oligometastases with SBRT since its introduction in 1997 has been collected and entered into a centralized database. In addition to patient and tumor characteristics, data on immobilization, image guidance and motion management as well as dose prescription and fractionation has been gathered. Besides dose response and survival statistics, time trends of the aforementioned variables have been investigated. RESULTS In total, 474 patients with 623 liver oligometastases (median 1 lesion/patient; range 1–4) have been collected from 1997 until 2015. Predominant histologies were colorectal cancer (n = 213 pts.; 300 lesions) and breast cancer (n = 57; 81 lesions). All centers employed an SBRT specific setup. Initially, stereotactic coordinates and CT simulation were used for treatment set-up (55%), but eventually were replaced by CBCT guidance (28%) or more recently robotic tracking (17%). High variance in fraction (fx) number (median 1 fx; range 1–13) and dose per fraction (median: 18.5 Gy; range 3–37.5 Gy) was observed, although median BED remained consistently high after an initial learning curve. Median follow-up time was 15 months; median overall survival after SBRT was 24 months. One- and 2-year treated metastases control rate of treated lesions was 77% and 64%; if maximum isocenter biological equivalent dose (BED) was greater than 150 Gy EQD2Gy, it increased to 83% and 70%, respectively. Besides radiation dose colorectal and breast histology and motion management methods were associated with improved treated metastases control. CONCLUSION After an initial learning curve with regards to total cumulative doses, consistently high biologically effective doses have been employed translating into high local tumor control at 1 and 2 years. The true impact of histology and motion management method on treated metastases control deserve deeper analysis. Overall survival is mainly influenced by histology and metastatic tumor burden.
Collapse
Affiliation(s)
- N. Andratschke
- University Hospital Zürich, Department of Radiation Oncology, University of Zurich, Rämistrasse 100, 8091 Zurich, Switzerland
| | - H. Alheid
- Department of Radiation Oncology, Strahlentherapie Bautzen, Bautzen, Germany
| | - M. Allgäuer
- Department of Radiation Oncology, Krankenhaus Barmherzige Brüder, Regensburg, Germany
| | - G. Becker
- RadioChirurgicum CyberKnife Südwest, Radiation Oncology, Göppingen, Germany
| | - O. Blanck
- Department of Radiation Oncology, Universitätsklinikum Schleswig-Holstein, /Lübeck, Kiel, Germany
| | - J. Boda-Heggemann
- University Hospital Mannheim, Department of Radiation Oncology, University of Heidelberg, Mannheim, Germany
| | - T. Brunner
- Department of Radiation Oncology, University Hospital Freiburg, Freiburg, Germany
| | - M. Duma
- Department of Radiation Oncology, Klinikum rechts der Isar- Technische Universität München, Munich, Germany
| | - S. Gerum
- Department of Radiation Oncology, University of Munich – LMU Munich, Munich, Germany
| | - M. Guckenberger
- University Hospital Zürich, Department of Radiation Oncology, University of Zurich, Rämistrasse 100, 8091 Zurich, Switzerland
| | - G. Hildebrandt
- Department of Radiation Oncology, University Hospital Rostock, Rostock, Germany
| | - R. J. Klement
- Department of Radiation Oncology, Leopoldina Hospital Schweinfurt, Schweinfurt, Germany
| | - V. Lewitzki
- Department of Radiation Oncology, University Hospital Würzburg, Würzburg, Germany
| | - C. Ostheimer
- Department of Radiation Oncology, University Hospital Halle, Halle, Germany
| | - A. Papachristofilou
- Department of Radiation Oncology, University Hospital Basel, Basel, Switzerland
| | - C. Petersen
- Department of Radiation Oncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - T. Schneider
- Department of Radiation Oncology, Strahlenzentrum Hamburg, Hamburg, Germany
| | - R. Semrau
- Department of Radiation Oncology, University Hospital of Cologne, Cologne, Germany
| | - S. Wachter
- Klinikum Passau, Radiation Oncology, Passau, Germany
| | - D. Habermehl
- Department of Radiation Oncology, University Hospital Heidelberg, Heidelberg, Germany
| |
Collapse
|
21
|
Sheldon R, Talajic M, Becker G, Essebag V, Sultan O, Ritchie D, Rose S, Morillo C, Krahn A, Brignole M, Maxey C. SYNCOPE: PACING VERSUS RECORDING IN THE LATER YEARS. A RANDOMIZED PRAGMATIC CLINICAL TRIAL OF STRATEGIES OF PERMANENT PACEMAKER VERSUS IMPLANTABLE CARDIAC MONITOR IN OLDER PATIENTS WITH SYNCOPE. Can J Cardiol 2017. [DOI: 10.1016/j.cjca.2017.07.285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
22
|
Kotagiri P, Martin A, Hughes P, Becker G, Nicholls K. Single-dose rituximab in refractory lupus nephritis. Intern Med J 2017; 46:899-901. [PMID: 27242250 DOI: 10.1111/imj.13136] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Revised: 04/07/2016] [Accepted: 05/22/2016] [Indexed: 11/28/2022]
Abstract
BACKGROUND Off-label use of rituximab in lupus nephritis is reported to be beneficial. While the optimal dose is unknown, the regimen of four intravenous doses of 375 mg/m(2) is commonly employed, despite expense and potential side-effects. AIM To investigate the response to single-dose rituximab, added to standard corticosteroids plus additional immunosuppressive agent, in refractory lupus nephritis. METHODS Consecutive consenting patients with refractory lupus nephritis despite steroids plus either cyclophosphamide, mycophenolate or azathioprine were enrolled in this ethics-approved, open-label, prospective study. After baseline assessment, patients received one intravenous infusion of 375 mg/m(2) rituximab. Clinical, biochemical and serological (DsDNA, complement) responses to this dose were analysed. Complete renal response (CR) was defined as normalisation of creatinine, albumin, proteinuria and urinary RBCs and partial response (PR) as ≥50% improvement in at least one parameter, without deterioration in others. B-cell depletion was defined as peripheral CD19 lymphocyte count ≤0.05 × 10(9) /L. RESULTS Fourteen patients were enrolled in the study. All were B-cell-depleted until 8 months post-dose. Eleven patients (79%) responded (2CR, 9PR) at a median time of 5 months, with a 6-month probability of renal response of 43%. Five patients (45%) relapsed at a median time of 17 months. DsDNA titres decreased in 69%. Side-effects were minimal. CONCLUSIONS Single-dose rituximab is effective in relapsed/refractory lupus nephritis. Longevity of B-cell depletion with single-dose rituximab is similar to that of four doses with potentially fewer side-effects.
Collapse
Affiliation(s)
- P Kotagiri
- Department of Nephrology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - A Martin
- Department of Nephrology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - P Hughes
- Department of Nephrology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia.,Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia
| | - G Becker
- Department of Nephrology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia.,Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia
| | - K Nicholls
- Department of Nephrology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia.,Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia
| |
Collapse
|
23
|
Klement R, Guckenberger M, Alheid H, Allgaeuer M, Becker G, Blanck O, Boda-Hegemann J, Brunner T, Duma M, Gerum S, Habermehl D, Hildebrandt G, Lewitzki V, Ostheimer C, Papachristofilou A, Petersen C, Schneider T, Semrau R, Wachter S, Andratschke N. OC-0523: SBRT for oligo-metastatic liver disease–effect of chemotherapy and histology on local tumor control. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)30963-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
24
|
Yankam Njiwa J, Costes N, Bouillot C, Bouvard S, Fieux S, Becker G, Levigoureux E, Kocevar G, Stamile C, Langlois JB, Bolbos R, Bonnet C, Bezin L, Zimmer L, Hammers A. Quantitative longitudinal imaging of activated microglia as a marker of inflammation in the pilocarpine rat model of epilepsy using [ 11C]-( R)-PK11195 PET and MRI. J Cereb Blood Flow Metab 2017; 37:1251-1263. [PMID: 27381824 PMCID: PMC5414902 DOI: 10.1177/0271678x16653615] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Inflammation may play a role in the development of epilepsy after brain insults. [11C]-( R)-PK11195 binds to TSPO, expressed by activated microglia. We quantified [11C]-( R)-PK11195 binding during epileptogenesis after pilocarpine-induced status epilepticus (SE), a model of temporal lobe epilepsy. Nine male rats were studied thrice (D0-1, D0 + 6, D0 + 35, D0 = SE induction). In the same session, 7T T2-weighted images and DTI for mean diffusivity (MD) and fractional anisotropy (FA) maps were acquired, followed by dynamic PET/CT. On D0 + 35, femoral arterial blood was sampled for rat-specific metabolite-corrected arterial plasma input functions (AIFs). In multiple MR-derived ROIs, we assessed four kinetic models (two with AIFs; two using a reference region), standard uptake values (SUVs), and a model with a mean AIF. All models showed large (up to two-fold) and significant TSPO binding increases in regions expected to be affected, and comparatively little change in the brainstem, at D0 + 6. Some individuals showed increases at D0 + 35. AIF models yielded more consistent increases at D0 + 6. FA values were decreased at D0 + 6 and had recovered by D0 + 35. MD was increased at D0 + 6 and more so at D0 + 35. [11C]-( R)-PK11195 PET binding and MR biomarker changes could be detected with only nine rats, highlighting the potential of longitudinal imaging studies.
Collapse
Affiliation(s)
| | - N Costes
- 2 CERMEP-Imagerie du Vivant, Lyon, France
| | - C Bouillot
- 2 CERMEP-Imagerie du Vivant, Lyon, France
| | - S Bouvard
- 2 CERMEP-Imagerie du Vivant, Lyon, France.,3 Lyon Neuroscience Research Center, University Claude Bernard Lyon 1, Lyon, France
| | - S Fieux
- 2 CERMEP-Imagerie du Vivant, Lyon, France
| | - G Becker
- 2 CERMEP-Imagerie du Vivant, Lyon, France
| | - E Levigoureux
- 3 Lyon Neuroscience Research Center, University Claude Bernard Lyon 1, Lyon, France.,4 Hospices Civils de Lyon, France
| | | | | | | | - R Bolbos
- 3 Lyon Neuroscience Research Center, University Claude Bernard Lyon 1, Lyon, France
| | - C Bonnet
- 3 Lyon Neuroscience Research Center, University Claude Bernard Lyon 1, Lyon, France
| | - L Bezin
- 3 Lyon Neuroscience Research Center, University Claude Bernard Lyon 1, Lyon, France
| | - L Zimmer
- 2 CERMEP-Imagerie du Vivant, Lyon, France.,3 Lyon Neuroscience Research Center, University Claude Bernard Lyon 1, Lyon, France.,4 Hospices Civils de Lyon, France
| | - A Hammers
- 1 Neurodis Foundation, Lyon, France.,6 Division of Imaging Sciences and Biomedical Engineering, King's College London & Guy's and St Thomas' PET Centre, King's College London, London, UK
| |
Collapse
|
25
|
Klement RJ, Guckenberger M, Alheid H, Allgäuer M, Becker G, Blanck O, Boda-Heggemann J, Brunner T, Duma M, Gerum S, Habermehl D, Hildebrandt G, Lewitzki V, Ostheimer C, Papachristofilou A, Petersen C, Schneider T, Semrau R, Wachter S, Andratschke N. Stereotactic body radiotherapy for oligo-metastatic liver disease - Influence of pre-treatment chemotherapy and histology on local tumor control. Radiother Oncol 2017; 123:227-233. [PMID: 28274491 DOI: 10.1016/j.radonc.2017.01.013] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 01/02/2017] [Accepted: 01/21/2017] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Stereotactic body radiation therapy (SBRT) is applied in the oligometastatic setting to treat liver metastases. However, factors influencing tumor control probability (TCP) other than radiation dose have not been thoroughly investigated. Here we set out to investigate such factors with a focus on the influence of histology and chemotherapy prior to SBRT using a large multi-center database from the German Society of Radiation Oncology. METHODS 452 SBRT treatments in 363 patients were analyzed after collection of patient, tumor and treatment data in a multi-center database. Histology was considered through random effects in semi-parametric and parametric frailty models. Dose prescriptions were parametrized by conversion to the maximum biologically effective dose using alpha/beta of 10Gy (BEDmax). RESULTS After adjusting for histology, BEDmax was the strongest predictor of TCP. Larger PTV volumes, chemotherapy prior to SBRT and simple motion management techniques predicted significantly lower TCP. The model predicted a BED of 209±67Gy10 necessary for 90% TCP at 2years with no prior chemotherapy, but 286±78Gy10 when chemotherapy had been given. Breast cancer metastases were significantly more responsive to SBRT compared to other histologies with 90% TCP at 2years achievable with BEDmax of 157±80Gy10 or 80±62Gy10 with and without prior chemotherapy, respectively. CONCLUSIONS Besides dose, histology and pretreatment chemotherapy were important factors influencing local TCP in this large cohort of liver metastases. After adjusting for prior chemotherapy, our data add to the emerging evidence that breast cancer metastases do respond better to hypofractionated SBRT compared to other histologies.
Collapse
Affiliation(s)
- R J Klement
- Leopoldina Hospital Schweinfurt, Department of Radiation Oncology, Germany
| | - M Guckenberger
- University Hospital Zürich, Department of Radiation Oncology, University of Zurich, Switzerland
| | - H Alheid
- Strahlentherapie Bautzen, Radiation Oncology, Germany
| | - M Allgäuer
- Krankenhaus Barmherzige Brüder, Radiation Oncology, Regensburg, Germany
| | - G Becker
- RadioChirurgicum CyberKnife Südwest, Radiation Oncology, Göppingen, Germany
| | - O Blanck
- Universitätsklinikum Schleswig-Holstein, Radiation Oncology, Kiel/Lübeck, Germany
| | - J Boda-Heggemann
- University Hospital Mannheim, Radiation Oncology, University of Heidelberg, Germany
| | - T Brunner
- University Hospital Freiburg, Radiation Oncology, Germany
| | - M Duma
- Klinikum rechts der Isar- Technische Universität München, Radiation Oncology, Germany
| | - S Gerum
- Department of Radiation Oncology, University of Munich - LMU Munich, Germany
| | - D Habermehl
- University Hospital Heidelberg, Radiation Oncology, Germany
| | - G Hildebrandt
- University Hospital Rostock, Radiation Oncology, Germany
| | - V Lewitzki
- University Hospital Würzburg, Radiation Oncology, Germany
| | - C Ostheimer
- University Hospital Halle, Radiation Oncology, Germany
| | | | - C Petersen
- University Medical Center Hamburg-Eppendorf, Radiation Oncology, Germany
| | - T Schneider
- Strahlenzentrum Hamburg, Radiation Oncology, Germany
| | - R Semrau
- University Hospital of Cologne, Radiation Oncology, Germany
| | - S Wachter
- Klinikum Passau, Radiation Oncology, Germany
| | - N Andratschke
- University Hospital Zürich, Department of Radiation Oncology, University of Zurich, Switzerland.
| |
Collapse
|
26
|
|
27
|
|
28
|
|
29
|
|
30
|
|
31
|
|
32
|
|
33
|
|
34
|
|
35
|
Becker G, Bolbos R, Costes N, Redouté J, Newman-Tancredi A, Zimmer L. Selective serotonin 5-HT1A receptor biased agonists elicitdistinct brain activation patterns: a pharmacoMRI study. Sci Rep 2016; 6:26633. [PMID: 27211078 PMCID: PMC4876409 DOI: 10.1038/srep26633] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 05/06/2016] [Indexed: 11/09/2022] Open
Abstract
Serotonin 1A (5-HT1A) receptors are involved in several physiological and pathological processes and constitute therefore an important therapeutic target. The recent pharmacological concept of biased agonism asserts that highly selective agonists can preferentially direct receptor signaling to specific intracellular responses, opening the possibility of drugs targeting a receptor subtype in specific brain regions. The present study brings additional support to this concept thanks to functional magnetic resonance imaging (7 Tesla-fMRI) in anaesthetized rats. Three 5-HT1A receptor agonists (8-OH-DPAT, F13714 and F15599) and one 5-HT1A receptor antagonist (MPPF) were compared in terms of influence on the brain blood oxygen level-dependent (BOLD) signal. Our study revealed for the first time contrasting BOLD signal patterns of biased agonists in comparison to a classical agonist and a silent antagonist. By providing functional information on the influence of pharmacological activation of 5-HT1A receptors in specific brain regions, this neuroimaging approach, translatable to the clinic, promises to be useful in exploring the new concept of biased agonism in neuropsychopharmacology.
Collapse
Affiliation(s)
- G Becker
- Université Claude Bernard Lyon 1, Centre de Recherche en Neurosciences de Lyon, CNRS, INSERM, Lyon, France.,Hospices Civils de Lyon, Lyon, France
| | - R Bolbos
- CERMEP - Imagerie du vivant, Lyon, France
| | - N Costes
- CERMEP - Imagerie du vivant, Lyon, France
| | - J Redouté
- CERMEP - Imagerie du vivant, Lyon, France
| | | | - L Zimmer
- Université Claude Bernard Lyon 1, Centre de Recherche en Neurosciences de Lyon, CNRS, INSERM, Lyon, France.,Hospices Civils de Lyon, Lyon, France.,CERMEP - Imagerie du vivant, Lyon, France
| |
Collapse
|
36
|
Andratschke N, Alheid H, Allgäuer M, Becker G, Blanck O, Boda-Hegemann J, Brunner T, Combs S, Duma M, Gerum S, Guckenberger M, Hildebrandt G, Ostheimer C, Panje C, Papachristofilou A, Petersen C, Schneider T, Semrau R, Wachter S, Habermehl D. OC-0445: Patterns of care and outcome analysis of SBRT for liver metastases - a DEGRO database initiative. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)31694-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
37
|
Wagner B, Meffert C, Becker G. Verfügbarkeit und Integration von Palliativmedizin an zertifizierten Lungenkrebszentren. Pneumologie 2015; 69:218-24. [DOI: 10.1055/s-0034-1391706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- B. Wagner
- Abteilung für Palliativmedizin, Innere Medizin III, Hämatologie/Onkologie/Palliativmedizin, Dr. Horst Schmidt Kliniken, Wiesbaden
| | - C. Meffert
- Forschungsgruppe Palliative Care, Klinik für Palliativmedizin, Universitätsklinikum Freiburg
| | - G. Becker
- Forschungsgruppe Palliative Care, Klinik für Palliativmedizin, Universitätsklinikum Freiburg
| |
Collapse
|
38
|
Happel HV, Körkel J, Becker G, Lipsmeier G. Erfolgreiche Konsumreduktion bei Drogenabhängigen: Ein Pyrrhussieg? Suchttherapie 2014. [DOI: 10.1055/s-0034-1390480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
| | - J. Körkel
- Evangelische Hochschule Nürnberg, Institut für innovative Suchtbehandlung und Suchtforschung (ISS)
| | - G. Becker
- Integrative Drogenhilfe e.V. Frankfurt/M
| | | |
Collapse
|
39
|
Jacquemet V, Cassani González R, Sturmer M, Dubé B, Sharestan J, Vinet A, Mahiddine O, LeBlanc A, Becker G, Kus T, Nadeau R. QT interval measurement and correction in patients with atrial flutter: a pilot study. J Electrocardiol 2014; 47:228-35. [DOI: 10.1016/j.jelectrocard.2013.11.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Indexed: 11/17/2022]
|
40
|
Strnad A, Auberger T, Panzer M, Riepl M, Becker G, Weiss E, Fietkau R. EP-1426: Use of choline PET/CT for treatment decision by recurrent prostate cancer in South Germany - a pattern of care study. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31544-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
41
|
González RC, Dubé B, Sharestan J, Mahiddine O, Vinet A, Nadeau R, LeBlanc A, Sturmer M, Becker G, Kus T, Jacquemet V. Consistency of QTc measurements in atrial flutter patients before and after catheter ablation. J Electrocardiol 2013. [DOI: 10.1016/j.jelectrocard.2013.09.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
42
|
Bibas L, Roy K, Sant'Anna R, Vinet A, Jacquemet V, Dubé B, Becker G, Kus T, Nadeau R, Leblanc R, Sturmer M. The Effect of Ventricular Stimulation on the QT Interval in Patients With Pacemakers. Can J Cardiol 2013. [DOI: 10.1016/j.cjca.2013.07.308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
|
43
|
Jacquemet V, Cassani Gonzalez R, Dubé B, Vinet A, Le Blanc A, Sturmer M, Becker G, Kus T, Nadeau R. Relevance of individualized qt interval correction in subjects with large heart rate fluctuations. J Electrocardiol 2013. [DOI: 10.1016/j.jelectrocard.2013.05.125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
44
|
Affiliation(s)
- M. Arnander
- Department of Hand Surgery, Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
| | - A. Tomarchio
- Department of Hand Surgery, Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
| | - G. Becker
- Department of Hand Surgery, Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
| |
Collapse
|
45
|
Becker G, Camarinopoulos A, Camarinopoulos L, Karali T, Schubert B. Frequency of damage by external explosion hazards based on geographical information. KERNTECHNIK 2013. [DOI: 10.3139/124.110336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
External explosions can significantly contribute to risk of damage for industrial plants. External explosions may origin from other plants in the neighbourhood, which store and operate with explosive substances, or from transport of such substances on road, rail, or water. If deflagration is involved, ignition will not necessarily occur at the place of the accident, but a cloud of a combustible gas-air mixture may develop, which will ignite at some distance depending on wind velocity. A probabilistic model has been developed to calculate frequencies of damage based on numerical integration or on Monte Carlo simulation. Geographical information systems provide map material for sites, roads, rail and rivers on a computer. Data has been collected and applied for a nuclear power plant in Germany as an example. The method, however, can be used for any type of plant subject to external explosion hazards.
Collapse
Affiliation(s)
- G. Becker
- Risa Sicherheitsanalysen GmbH, Krumme Straße 55, 10 627 Berlin-Charlottenburg, Germany, E-mail:
| | - A. Camarinopoulos
- Environment Reliability and Risk Analysis (ERRA), 67 Syngrou Avenue, 11 745 Athens, Greece
| | | | - T. Karali
- Environment Reliability and Risk Analysis (ERRA), 67 Syngrou Avenue, 11 745 Athens, Greece, E-mail:
| | | |
Collapse
|
46
|
Sturmer M, Sharestan J, Dube B, Jacquemet V, Vinet A, Kus T, Becker G, Leblanc A, Nadeau R. 608 Atrial Flutter Doesn't Cause Changes in QT Interval. Can J Cardiol 2012. [DOI: 10.1016/j.cjca.2012.07.546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
|
47
|
Sant'Anna R, Becker G, Kus T, Hadjis T, Essebag V, Sturmer M. 597 Cardiac Biomarkers Levels in Patients Undergoing Permanent Pacemaker Implantation for Non-Paroxysmal Atrioventricular Block. Can J Cardiol 2012. [DOI: 10.1016/j.cjca.2012.07.535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|
48
|
Kus T, Nitzsché R, Becker G, Essebag V, Hadjis T, Sturmer M, Langlois A. 600 Safer Pacing Mode Significantly Prevents V Pacing as Compared to DDD With Long AV Delays or AV Delay Hysteresis. Can J Cardiol 2012. [DOI: 10.1016/j.cjca.2012.07.538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
49
|
Abstract
BACKGROUND The clinical impression of Australian physicians is that systemic lupus erythematosus (SLE) is more prevalent and more severe in Asian patients than in their Caucasian counterparts. The presence and severity of lupus nephritis is a major determinant of prognosis in SLE, and largely determines disease impact. AIM To analyse the relationships between ethnicity and the prevalence and severity of lupus nephritis (LN) in patients attending a tertiary referral centre (The Royal Melbourne Hospital (RMH)). METHODS The ethnicity of all known patients with biopsy-proven LN was determined according to three definitions of ethnicity - ancestry, country of origin and primary language spoken. The prevalence of Asian ethnicity in the LN cohort was analysed across severity class, and was compared with the prevalences of Asian ethnicity in the general population within the hospital's geographic area, and with that in the relevant RMH cohorts of inpatients and outpatients, over the same time period. RESULTS Within this single tertiary centre, Asian patients were disproportionately represented in both the systemic lupus erythematosus (SLE) and the LN patient groups, although the distribution of histological severity of LN was not significantly different from Caucasian patients. CONCLUSION This study supports the common clinical impression that SLE is more common and more severe in the Asian-Australian population. Asian patients with SLE were more commonly diagnosed with LN. However, the spectrum of histological severity of LN was similar in Asian and Caucasian patients.
Collapse
Affiliation(s)
- C Ong
- Department of Nephrology, The Royal Melbourne Hospital, and Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia
| | | | | |
Collapse
|
50
|
Wegner F, Meyer P, Becker G, Patt M, Strecker K, Hesse S, Schwarz J, Sabri O. Nikotinische Azetylcholinrezeptoren und ihre Beziehung zu motorischen Symptomen beim M. Parkinson: eine 2-[F-18]F-A85380 PET Studie. KLIN NEUROPHYSIOL 2012. [DOI: 10.1055/s-0032-1301626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|