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Kugler C, Spielmann H, Albert W, Lauenroth V, Spitz-Koeberich C, Semmig-Koenze S, Staus P, Tigges-Limmer K. Professional Employment in Patients on Ventricular Assist Device Support-A National Multicenter Survey Study. ASAIO J 2024; 70:348-355. [PMID: 38170263 PMCID: PMC11057483 DOI: 10.1097/mat.0000000000002124] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024] Open
Abstract
This study aimed to assess patients of working age returning to professional employment as a surrogate marker for functional recovery and psychosocial reintegration after ventricular assist device (VAD) implantation. A national, multicenter study considered professional employment and its relationship to sociodemographic, psychosocial, and clinical adverse outcomes in outpatients on VAD support. Patient-reported outcome measures were administered. The survey had a 72.7% response rate. Mean age of 375 subjects was 58 ± 11 years, 53 (14%) were female. Thirty-five patients (15.15%; 95% confidence interval [CI] = 10.9-20.6) were employed, and the majority of them (n = 29, 82.9%) were bridged to transplantation. A regression model after variable selection revealed younger age (odds ratio [OR] = 0.95; 95% CI = 0.91-0.98; p < 0.005), and higher education (OR = 3.05; 95% CI = 1.72-5.41; p < 0.001) associated with professional employment. Employed patients reported higher health-related quality of life (HRQoL) (Kansas City Cardiomyopathy Questionnaire [KCCQ] overall sum-score, OR = 1.04; 95% CI = 0.92-1.07; p < 0.007), the OR for those employed was 2.18 (95% CI = 0.89-5.41; p < 0.08) indicating no significant relation for employment and a history of adverse events. In this sample, professional employment was rather small; the likelihood of adverse events was not significantly different between groups. Those employed perceived better overall HRQoL, which may encourage clinicians to support professional employment for selected patients on VAD support.
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Affiliation(s)
- Christiane Kugler
- From the Faculty of Medicine, Institute of Nursing Science, University of Freiburg, Freiburg, Germany
| | - Hannah Spielmann
- From the Faculty of Medicine, Institute of Nursing Science, University of Freiburg, Freiburg, Germany
| | | | - Volker Lauenroth
- Heart and Diabetes Center North-Rhine Westphalia, University Hospital of the Ruhr University Bochum, Bad Oeynhausen, Germany
| | | | | | - Paulina Staus
- Faculty of Medicine and Medical Center, Institute of Medical Biometry and Statistics, University of Freiburg, Freiburg, Germany
| | - Katharina Tigges-Limmer
- Heart and Diabetes Center North-Rhine Westphalia, University Hospital of the Ruhr University Bochum, Bad Oeynhausen, Germany
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Spielmann H, Albert W, Semmig-Könze S, Lauenroth V, Spitz-Köberich C, Staus P, Tigges-Limmer K, Kugler C. High level of psychosocial adjustment in patients on ongoing ventricular assist device support in the years one to three after VAD implantation-A national multi-center Study. Heart Lung 2024; 63:92-97. [PMID: 37837720 DOI: 10.1016/j.hrtlng.2023.10.003] [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: 05/23/2023] [Revised: 10/03/2023] [Accepted: 10/09/2023] [Indexed: 10/16/2023]
Abstract
BACKGROUND Advanced heart failure therapies such as durable ventricular assist device (VAD) support require psychosocial adjustment for those affected. Since VAD implantation has become an established treatment strategy, a focus on psychosocial factors is needed. OBJECTIVES To investigate the construct of psychosocial adjustment and to further understand the role of social support. METHODS In a nation-wide, multi-center, cross-sectional study, we recruited 393 participants with ongoing VAD support (3mts-3yrs on device; clinicaltrials.gov ID: NCT04234230). Patient demographics, psychosocial adjustment (perceived social support, anxiety, depression, and quality of life), and major adverse events (thromboembolic events, bleeding, driveline infections) were assessed. RESULTS Overall, 85.8 % of the sample were male; mean age was 58.3 years (range 18-85). The majority of the sample (89.3 %) reported normal to high perceived social support. Participants expressed symptoms of anxiety within the normal range (M=6.0±3.9), mildly elevated depressive symptoms (HADS: M=7.6±2.9; PHQ-9: M=6.2±4.7), and good quality of life (KCCQ: M=65.3±17.9). Higher perceived social support was associated with lower levels of anxiety and depression, and higher levels of quality of life within our sample (all p<0.001). Driveline infection was the most prevalent adverse event (0.304 infections per person-years [32.6 % of patients]). Binary logistic regression models did not identify significant associations for the occurrence of adverse events and variables of psychosocial adjustment. CONCLUSION Our sample perceived high levels of psychosocial adjustment. High perceived social support was associated with better outcomes in levels of anxiety, depression, and quality of life, demonstrating potential for the future development and evaluation of targeted multi-professional social support interventions including peer- and caregiver support.
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Affiliation(s)
- Hannah Spielmann
- Faculty of Medicine, Institute of Nursing Science, University of Freiburg, Breisacher Str. 153, Freiburg 79110, Germany
| | | | | | - Volker Lauenroth
- Heart and Diabetes Center North-Rhine Westphalia, University Hospital of the Ruhr University Bochum, Bad Oeynhausen, Germany
| | - Christine Spitz-Köberich
- Department Pediatric Cardiology, Medical Center - University of Freiburg, University Heart Center Freiburg - Bad Krozingen, Germany
| | - Paulina Staus
- Faculty of Medicine and Medical Center, Institute of Medical Biometry and Statistics, University of Freiburg, Germany
| | - Katharina Tigges-Limmer
- Heart and Diabetes Center North-Rhine Westphalia, University Hospital of the Ruhr University Bochum, Bad Oeynhausen, Germany
| | - Christiane Kugler
- Faculty of Medicine, Institute of Nursing Science, University of Freiburg, Breisacher Str. 153, Freiburg 79110, Germany.
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Spielmann H, Tigges-Limmer K, Albert W, Spitz-Köberich C, Semmig-Könze S, Staus P, Herrmann-Lingen C, Sandau KE, Okeson B, Geyer S, Kugler C. Health-Related Quality of Life in Patients With Ventricular Assist Device: Psychometric Evaluation of the German Version of the Quality of Life With a Ventricular Assist Device Questionnaire. J Cardiovasc Nurs 2023:00005082-990000000-00153. [PMID: 37991265 DOI: 10.1097/jcn.0000000000001064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
BACKGROUND Ventricular assist device (VAD) implantation has become an alternative treatment for patients with end-stage heart failure. In Germany, valid and reliable instruments to assess health-related quality of life in patients with VAD are lacking. OBJECTIVE The aim of this study was to present the psychometric validation of the German version of the Quality of Life with a Ventricular Assist Device questionnaire. METHODS In a multicenter, cross-sectional study, 393 participants (mean age, 58.3 years; 85.8% male, 60.3% bridge to transplant, and 72.8% living with VAD for ≤2 years) completed the German Quality of Life with a Ventricular Assist Device questionnaire of physical, emotional, social, cognitive, and meaning/spiritual domains. Item and confirmatory factor analyses were conducted to test item difficulty and discrimination and the underlying structure, respectively. To examine internal consistency, Cronbach α was assessed. Convergent construct validity was tested using the Kansas City Cardiomyopathy Questionnaire and the Patient Health Questionnaire-9. Readability was examined using Flesch Reading Ease index and Vienna Factual Text Formula. RESULTS The Quality of Life with a Ventricular Assist Device showed reasonable item difficulty (Ptotal = .67) and mostly moderate to high discriminatory power (rit > 0.30). In confirmatory factor analysis, root-mean-square error of approximation (0.07) was acceptable for model fit, but no other indices. Acceptable internal consistency was found (α ≥ 0.79), with the exception of the cognitive domain (α = 0.58). The overall questionnaire and single domains demonstrated convergent validity (r ≥ 0.45, P < .001). The questionnaire showed adequate readability (Flesch Reading Ease, 64.11; Vienna Factual Text Formula, 6.91). CONCLUSION Findings indicate a promising standardized clinical instrument to assess health-related quality of life in patients with VAD.
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Richter F, Spielmann H, Semmig-Koenze S, Spitz-Köberich C, Knosalla C, Kugler C, Tigges-Limmer K, Albert W. Disturbance in bodily experience following ventricular assist device implantation. J Heart Lung Transplant 2023:S1053-2498(23)02109-5. [PMID: 37923150 DOI: 10.1016/j.healun.2023.10.019] [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: 03/17/2023] [Revised: 09/23/2023] [Accepted: 10/26/2023] [Indexed: 11/07/2023] Open
Abstract
BACKGROUND Disturbance in bodily experience (BE) is a potential adverse consequence of ventricular assist device (VAD) implantation. The concept BE encompasses all cognitive and affective processes related to the subjective experience of one's own body. METHODS A cross-sectional, multicenter study was performed, involving 365 VAD patients (85% male; time postimplant: 3-36 months). Patients completed a BE questionnaire (BE-S, 5-point Likert scale), and the disturbance in BE was analyzed based on sex, time since implantation (in the first, second, or third years postimplant), and patient acuity (elective vs emergent implantation). Subsidiary, patients' gratitude was surveyed. RESULTS Disturbance in BE was not particularly pronounced (mean = 2.69, standard deviation = 1.17). Eighty-five percent of patients expressed high levels of gratitude. Disturbance in BE decreased (p = 0.04), while gratitude increased (p = 0.02) with time since implantation. Female patients showed more disturbance in BE (p = 0.01) and less gratitude (p = 0.01) compared to male patients. Among patients who underwent emergency implantation, the decrease in disturbance occurred predominantly in the third year, exceeding the level observed in elective implanted patients (p = 0.03). CONCLUSIONS Disturbance in BE following VAD implantation does generally not reach excessive levels and tends to decrease over time. Our data indicate more disturbance and less gratitude in female patients. In emergently implanted patients, disturbance in BE is prolonged. Screening for disturbance in BE is recommended during follow-up, especially for these at-risk groups, to ensure early and focused psychological support.
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Affiliation(s)
- Fabian Richter
- Deutsches Herzzentrum der Charité, Department of Cardiothoracic and Vascular Surgery, Berlin, Germany; Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Hannah Spielmann
- University of Freiburg, Faculty of Medicine, Institute of Nursing Science, Freiburg, Germany
| | | | - Christine Spitz-Köberich
- Medical Center - University of Freiburg, University Heart Center Freiburg, Bad Krozingen, Germany
| | - Christoph Knosalla
- Deutsches Herzzentrum der Charité, Department of Cardiothoracic and Vascular Surgery, Berlin, Germany; Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany; DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany
| | - Christiane Kugler
- University of Freiburg, Faculty of Medicine, Institute of Nursing Science, Freiburg, Germany
| | - Katharina Tigges-Limmer
- Heart and Diabetes Center North-Rhine Westphalia, University Hospital of the Ruhr University Bochum, Bad Oeynhausen, Germany
| | - Wolfgang Albert
- Deutsches Herzzentrum der Charité, Department of Cardiothoracic and Vascular Surgery, Berlin, Germany; Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany; DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany.
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Salzmann S, Laferton J, Shedden-Mora M, Horn N, Gärtner L, Schröder L, Rau J, Schade-Brittinger C, Murmann K, Rastan A, Andrási T, Böning A, Salzmann-Djufri M, Löwe B, Brickwedel J, Albus C, Wahlers T, Hamm A, Hilker L, Albert W, Zimmermann T, Ismail I, Strauß B, Doenst T, Schedlowski M, Moosdorf R, Rief W. Pre-surgery Optimization of Patients’ Expectations to Improve Outcome in Heart Surgery: Study Protocol of the Randomized Controlled Multicenter PSY-HEART-II Trial. Thorac Cardiovasc Surg 2023. [DOI: 10.1055/s-0043-1761773] [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: 03/22/2023]
Affiliation(s)
- S. Salzmann
- Division of Clinical Psychology and Psychotherapy, Philipps University of Marburg, Marburg, Deutschland
| | - J. Laferton
- Department of Medicine, Health and Medical University, Potsdam, Deutschland
| | - M. Shedden-Mora
- Department of Psychology, Medical School Hamburg, Hamburg, Deutschland
| | - N. Horn
- Division of Clinical Psychology and Psychotherapy, Philipps University of Marburg, Marburg, Deutschland
| | - L. Gärtner
- Division of Clinical Psychology and Psychotherapy, Philipps University of Marburg, Marburg, Deutschland
| | - L. Schröder
- Division of Clinical Psychology and Psychotherapy, Philipps University of Marburg, Marburg, Deutschland
| | - J. Rau
- Coordination Center for Clinical Trials (KKS), University of Marburg, Marburg, Deutschland
| | - C. Schade-Brittinger
- Coordination Center for Clinical Trials (KKS), University of Marburg, Marburg, Deutschland
| | - K. Murmann
- Coordination Center for Clinical Trials (KKS), University of Marburg, Marburg, Deutschland
| | - A. Rastan
- Department for Cardiovascular Surgery, Heart Center, Philipps University of Marburg, Marburg, Deutschland
| | - T. Andrási
- Department for Cardiovascular Surgery, Heart Center, Philipps University of Marburg, Marburg, Deutschland
| | - A. Böning
- Department of Cardiovascular Surgery, University Hospital Giessen, Giessen, Deutschland
| | - M. Salzmann-Djufri
- Department of Cardiovascular Surgery, University Hospital Giessen, Giessen, Deutschland
| | - B. Löwe
- Department of Psychosomatic Medicine and Psychotherapy, University Medical Center Hamburg, Hamburg, Deutschland
| | - J. Brickwedel
- Department of Cardiovascular Surgery, University Heart and Vascular Center Hamburg, Hamburg, Deutschland
| | - C. Albus
- Department of Psychosomatics and Psychotherapy, Medical Faculty and University Hospital, Cologne, Deutschland
| | - T. Wahlers
- Department of Cardiothoracic Surgery, University Hospital of Cologne, Cologne, Deutschland
| | - A. Hamm
- Department of Physiological and Clinical Psychology/ Psychotherapy, University of Greifswald, Greifswald, Deutschland
| | - L. Hilker
- Department of Cardiovascular Surgery, Clinic Karlsburg, Heart and Diabetes Center, Karlsburg, Deutschland
| | - W. Albert
- Psychosomatics, German Heart Center Berlin, Berlin, Deutschland
| | - T. Zimmermann
- Department of Psychosomatic Medicine and Psychotherapy, Hannover Medical School, Hanover, Deutschland
| | - I. Ismail
- Division of Cardiac, Thoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hanover, Deutschland
| | - B. Strauß
- Institute of Psychosocial Medicine, Psychotherapy, and Psychooncology, University Hospital Jena, Jena, Deutschland
| | - T. Doenst
- Jena University Hospital, Friedrich-Schiller-University of Jena, Jena, Deutschland
| | - M. Schedlowski
- Institute of Medical Psychology and Behavioral Immunobiology, University Clinic Essen, Essen, Deutschland
| | - R. Moosdorf
- Department for Cardiovascular Surgery, Heart Center, Philipps University of Marburg, Marburg, Deutschland
| | - W. Rief
- Division of Clinical Psychology and Psychotherapy, Philipps University of Marburg, Marburg, Deutschland
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Salzmann S, Laferton JAC, Shedden-Mora MC, Horn N, Gärtner L, Schröder L, Rau J, Schade-Brittinger C, Murmann K, Rastan A, Andrási TB, Böning A, Salzmann-Djufri M, Löwe B, Brickwedel J, Albus C, Wahlers T, Hamm A, Hilker L, Albert W, Falk V, Zimmermann T, Ismail I, Strauß B, Doenst T, Schedlowski M, Moosdorf R, Rief W. Pre-surgery optimization of patients' expectations to improve outcome in heart surgery: Study protocol of the randomized controlled multi-center PSY-HEART-II trial. Am Heart J 2022; 254:1-11. [PMID: 35940247 DOI: 10.1016/j.ahj.2022.07.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/29/2022] [Accepted: 07/29/2022] [Indexed: 06/15/2023]
Abstract
The PSY-HEART-I trial indicated that a brief expectation-focused intervention prior to heart surgery improves disability and quality of life 6 months after coronary artery bypass graft surgery (CABG). However, to investigate the clinical utility of such an intervention, a large multi-center trial is needed to generalize the results and their implications for the health care system. The PSY-HEART-II study aims to examine whether a preoperative psychological intervention targeting patients' expectations (EXPECT) can improve outcomes 6 months after CABG (with or without heart valve replacement). EXPECT will be compared to Standard of Care (SOC) and an intervention providing emotional support without targeting expectations (SUPPORT). In a 3-arm multi-center randomized, controlled, prospective trial (RCT), N = 567 patients scheduled for CABG surgery will be randomized to either SOC alone or SOC and EXPECT or SOC and SUPPORT. Patients will be randomized with a fixed unbalanced ratio of 3:3:1 (EXPECT: SUPPORT: SOC) to compare EXPECT to SOC and EXPECT to SUPPORT. Both psychological interventions consist of 2 in-person sessions (à 50 minute), 2 phone consultations (à 20 minute) during the week prior to surgery, and 1 booster phone consultation post-surgery 6 weeks later. Assessment will occur at baseline approx. 3-10 days before surgery, preoperatively the day before surgery, 4-6 days later, and 6 months after surgery. The study's primary end point will be patients' illness-related disability 6 months after surgery. Secondary outcomes will be patients' expectations, subjective illness beliefs, quality of life, length of hospital stay and blood sample parameters (eg, inflammatory parameters such as IL-6, IL-8, CRP). This large multi-center trial has the potential to corroborate and generalize the promising results of the PSY-HEART-I trial for routine care of cardiac surgery patients, and to stimulate revisions of treatment guidelines in heart surgery.
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Affiliation(s)
- Stefan Salzmann
- Division of Clinical Psychology and Psychotherapy, Philipps University of Marburg, Marburg, Germany.
| | | | - Meike C Shedden-Mora
- Department of Psychology, Medical School Hamburg, Hamburg, Germany; Department of Psychosomatic Medicine and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Nicole Horn
- Division of Clinical Psychology and Psychotherapy, Philipps University of Marburg, Marburg, Germany
| | - Laura Gärtner
- Division of Clinical Psychology and Psychotherapy, Philipps University of Marburg, Marburg, Germany
| | - Lara Schröder
- Division of Clinical Psychology and Psychotherapy, Philipps University of Marburg, Marburg, Germany
| | - Jörn Rau
- Coordination Center for Clinical Trials (KKS), University of Marburg, Marburg, Germany
| | | | - Kirsten Murmann
- Coordination Center for Clinical Trials (KKS), University of Marburg, Marburg, Germany
| | - Ardawan Rastan
- Department for Cardiovascular Surgery, Heart Center, Philipps University of Marburg, Marburg, Germany
| | - Térezia B Andrási
- Department for Cardiovascular Surgery, Heart Center, Philipps University of Marburg, Marburg, Germany
| | - Andreas Böning
- Department of Cardiovascular Surgery, University Hospital Giessen, Giessen, Germany
| | | | - Bernd Löwe
- Department of Psychosomatic Medicine and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jens Brickwedel
- Department of Cardiovascular Surgery, University Heart & Vascular Center Hamburg, Hamburg, Germany
| | - Christian Albus
- Department of Psychosomatics and Psychotherapy, Medical Faculty and University Hospital, University of Cologne, Cologne, Germany
| | - Thorsten Wahlers
- Department of Cardiothoracic Surgery, University Hospital of Cologne, Cologne, Germany
| | - Alfons Hamm
- Department of Physiological and Clinical Psychology/ Psychotherapy, University of Greifswald, Greifswald, Germany
| | - Lutz Hilker
- Department of Cardiovascular Surgery, Clinic Karlsburg, Heart and Diabetes Center Mecklenburg-Western Pommerania, Karlsburg, Germany
| | | | - Volkmar Falk
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Berlin, Germany
| | - Tanja Zimmermann
- Department of Psychosomatic Medicine and Psychotherapy, Hannover Medical School, Hannover, Germany
| | - Issam Ismail
- Division of Cardiac, Thoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Bernhard Strauß
- Institute of Psychosocial Medicine, Psychotherapy, and Psychooncology, University Hospital Jena, Germany
| | - Torsten Doenst
- Jena University Hospital, Friedrich-Schiller-University of Jena, Jena, Germany
| | - Manfred Schedlowski
- Institute of Medical Psychology and Behavioral Immunobiology, University Clinic Essen, Essen, Germany, and Department of Clinical Neuroscience, Osher Center for Integrative Medicine, Karolinska Institute, Stockholm, Sweden
| | - Rainer Moosdorf
- Department for Cardiovascular Surgery, Heart Center, Philipps University of Marburg, Marburg, Germany
| | - Winfried Rief
- Division of Clinical Psychology and Psychotherapy, Philipps University of Marburg, Marburg, Germany
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Spielmann H, Seemann M, Tigges-Limmer K, Lauenroth V, Wacker R, Albert W, Spitz-Köberich C, Semmig-Könze S, Neubert M, von Cube M, Soetedjo V, Herrmann-Lingen C, Sandau K, Okeson B, Kugler C. Measuring Quality of Life in Patients with Ventricular Assist Device - Psychometric Evaluation of the German Version of the Disease Specific QoLVAD-Questionnaire. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.386] [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: 10/18/2022] Open
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Kugler C, Spielmann H, Seemann M, Lauenroth V, Wacker R, Albert W, Spitz-Köberich C, Semmig-Könze S, Neubert M, von Cube M, Tigges-Limmer K. Professional Employment in Patients on Ventricular Assist Device Support - A Multi-Center Prevalence Study. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.384] [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: 10/18/2022] Open
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Kugler C, Spielmann H, Seemann M, Lauenroth V, Wacker R, Albert W, Spitz-Koeberich C, Semmig-Koenze S, von Cube M, Tigges-Limmer K. Self-management for patients on ventricular assist device support: a national, multicentre study: protocol for a 3-phase study. BMJ Open 2021; 11:e044374. [PMID: 33952544 PMCID: PMC8103388 DOI: 10.1136/bmjopen-2020-044374] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 02/01/2021] [Accepted: 02/22/2021] [Indexed: 11/27/2022] Open
Abstract
INTRODUCTION Self-management (SM) may facilitate patient participation and involvement to become active and knowledgeable partners in the care of complex chronic conditions such as ventricular assist device (VAD) therapy. The 'SM model for patients on VAD support' will serve to distinguish between SM components, and will guide the development, implementation and evaluation of an evidence-based curriculum. METHODS AND ANALYSIS This is a 3-phase, multicentre study. In phase 1, a prevalence study will be performed. Phase 2 aims to develop an evidence-based, interprofessional curriculum for SM support for VAD patients. In phase 3, a non-blinded block-randomised controlled trial (RCT), allocation ratio 1:1, intervention group superiority, with an unblinded multifacetted intervention with assessments before (T1) and after (T2) the intervention, and two follow-up assessments at three (T3), and 12 (T4) months after VAD implantation, will be performed. The curriculum guides the intervention in the RCT. Patient recruitment will consider centre-related volume: power analyses require 384 patients for phase 1, and 142 patients for phase 3. ETHICS AND DISSEMINATION Ethical considerations will be continuously taken into account and approved by the institutional review boards. Central ethical review board approval has been obtained by the Albert-Ludwigs University Freiburg. This study will be performed in concordance with the Declaration of Helsinki and the European data protection law. Publications will exclusively report aggregated data and will be distributed in the scientific community, and patient support groups. Report languages will be German and English. TRIAL REGISTRATION NUMBERS NCT04234230 and NCT04526964; Pre-results.
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Affiliation(s)
- Christiane Kugler
- Institute of Nursing Science, University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Hannah Spielmann
- Institute of Nursing Science, University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Maiken Seemann
- Institute of Nursing Science, University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Volker Lauenroth
- Medical Psychology, Heart and Diabetes Center North Rhine-Westphalia, Bad Oeynhausen, Nordrhein-Westfalen, Germany
| | - Renata Wacker
- Psychosomatics, German Heart Center Berlin, Berlin, Germany
| | | | | | | | - Maja von Cube
- Institute of Medical Biometry and Statistics, University of Freiburg, Freiburg, Germany
| | - Katharina Tigges-Limmer
- Medical Psychology, Heart and Diabetes Center North Rhine-Westphalia, Bad Oeynhausen, Nordrhein-Westfalen, Germany
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Spielmann H, Seemann M, Friedrich N, Tigges-Limmer K, Albert W, Semmig-Könze S, Spitz-Köberich C, Kugler C. Self-management with the therapeutic regimen in patients with ventricular assist device (VAD) support - a scoping review. Heart Lung 2021; 50:388-396. [PMID: 33621837 DOI: 10.1016/j.hrtlng.2021.01.019] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 01/22/2021] [Accepted: 01/26/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Ventricular assist device (VAD) implantation has become an established treatment strategy for the increasing number of patients with advanced heart failure. Adequate patient self-management becomes essential to prevent adverse events, which could diminish expected outcomes and survival for patients on VAD support. OBJECTIVES The aim of this study was to provide an overview of the current state of evidence concerning self-management in VAD patients through a systematized search and mapping of the literature. METHODS Following the scoping review process, a comprehensive literature search (PubMed, PsychInfo), tabular synthesis of included articles, and data analysis of synthesized findings were performed. RESULTS Overall, twenty articles were included. Results describe the complexity of regular self-management tasks and give direction for specific self-management training. CONCLUSIONS This article represents the first comprehensive overview of available evidence suggesting the need for development and implementation of evidence-based, patient self-management curricula with therapeutic regimen for VAD patients.
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Affiliation(s)
- Hannah Spielmann
- University of Freiburg, Faculty of Medicine, Institute of Nursing Science, Germany.
| | - Maiken Seemann
- University of Freiburg, Faculty of Medicine, Institute of Nursing Science, Germany
| | - Nina Friedrich
- University of Freiburg, Faculty of Medicine, Institute of Nursing Science, Germany
| | | | | | | | | | - Christiane Kugler
- University of Freiburg, Faculty of Medicine, Institute of Nursing Science, Germany.
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Wollina U, Tempel S, Albert W, Hansel G, Heinig B. Advanced Ulcerated Squamous Cell Carcinoma of the Hand with Locoregional Axillary Lymph Node Metastasis - Case Report and Literature Review. Open Access Maced J Med Sci 2019; 7:791-793. [PMID: 30962841 PMCID: PMC6447345 DOI: 10.3889/oamjms.2019.200] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 01/26/2019] [Revised: 03/02/2019] [Accepted: 03/03/2019] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND: Cutaneous squamous cell carcinoma (SCC) of the hand is the most common soft-tissue malignancy in this particular region. A literature survey suggested a higher rate of metastases in advanced SCC of the hand compared to head-and-neck cutaneous SCC. CASE REPORT: An 84-year-old man presented with an ulcerated firm tumour on the dorsum of his right hand. A diagnostic biopsy confirmed the diagnosis SCC. Imaging suggested an involvement of the tendons of digits 3 and 4. A diagnostic ultrasound suggested a loco-regional axillary lymph node metastasis. After discussion in the interdisciplinary tumour board, amputation of the affected digits followed by lymph node excision was recommended. CONCLUSIONS: Advanced SCC of the hand requires interdisciplinary management. Amputation is part of the surgical spectrum in advanced cases.
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Affiliation(s)
- Uwe Wollina
- Academic Teaching Hospital Dresden, Department of Dermatology and Allergology, Dresden, Germany
| | - Sven Tempel
- Department of Trauma, Reconstructive, and Hand Surgery, Städtisches Klinikum Dresden, Dresden, Germany
| | - Wolfgang Albert
- Department of General, Visceral and Thoracic Surgery, Städtisches Klinikum Dresden, Dresden, Germany
| | - Gesina Hansel
- Academic Teaching Hospital Dresden, Department of Dermatology and Allergology, Dresden, Germany
| | - Birgit Heinig
- Center for Physical and Rehabilitative Medicine, Städtisches Klinikum Dresden, Dresden, Germany
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Abstract
OBJECTIVE Paediatric heart transplantation (PHTX) comprises 12% of all cardiac transplants and many of the children now survive into adulthood. Only a few studies have investigated the long-term psychosocial well-being of young adult patients after PHTX; no studies have investigated developmental tasks of emerging adulthood in different domains (family, social environment, education and profession, partnership, social environment). SETTING Specialised heart centre in Germany. PARTICIPANTS Thirty-eight young adults aged 22.11 years (SD=4.7) who underwent PHTX and a control group of 46 participants with no known chronic diseases, aged 22.91 years (SD=1.8), participated in the study. OUTCOME MEASURES All participants completed the following questionnaires: sociodemographic, the F-SozU, to measure perceived social support, the Gießener Beschwerde-Bogen to measure subjective complaints experienced by patients, the KIDSCREEN-27 to measure well-being and the SF-36 to measure health-related quality of life (QoL). RESULTS 'Family': the quality of the relationship with the parents was found to be equal in both groups, while PHTX patients stayed in closer spatial proximity to their parents. 'Social environment': PHTX patients reported lower social support by peers than the control group. 'Education and profession': PHTX patients most often worked full-time (23%), had no job and/or received a pension (21%). In comparison, most of the healthy controls did an apprenticeship (40%) and/or worked part time (32%). 'Partnership': fewer of the PHTX patients had a partner than the control group while relationship duration did not differ. In exploratory regression analyses, social support by peers predicted physical QoL, whereas physical complaints and the physical role predicted mental QoL in PHTX patients. CONCLUSIONS Our exploratory findings highlight important similarities and differences in specific developmental tasks between PHTX patients and healthy controls. Future studies should focus on developmental tasks of PHTX patients in this age group more systematically, investigating their role in physical and mental well-being in a confirmatory manner.
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Affiliation(s)
- Maria Sepke
- Unit for Psychosomatic Medicine, Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Berlin, Germany
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
- Steinbeis Transfer Institute Medical Psychology, Steinbeis-Hochschule Berlin, Berlin, Germany
| | - Hannah Ferentzi
- Department of Congenital Heart Disease-Pediatric Cardiology, German Heart Center Berlin, Berlin, Germany
| | | | - Wolfgang Albert
- Unit for Psychosomatic Medicine, Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Berlin, Germany
- Steinbeis Transfer Institute Medical Psychology, Steinbeis-Hochschule Berlin, Berlin, Germany
- DZHK (German Center for Cardiovascular Research), Berlin, Germany
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Kröncke S, Greif-Higer G, Albert W, de Zwaan M, Erim Y, Eser-Valeri D, Papachristou C, Petersen I, Schulz KH, Tigges-Limmer K, Vitinius F, Ziegler K, Künsebeck HW. [Psychosocial Evaluation of Transplant Patients - Recommendations for the Guidelines for Organ Transplantation]. Psychother Psychosom Med Psychol 2018; 68:179-184. [PMID: 29723906 DOI: 10.1055/s-0044-102294] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
For the last few years, the German Medical Association's guidelines for transplant medicine have been subject to an extensive revision process. The present contribution presents recommendations regarding the psychosocial evaluation of patients prior to organ transplantation, which were developed by experts from the Psychology/Psychosomatics committee of the German Transplant Society with the aim to incorporate the recommendations into the guidelines. The main objective is to establish a mandatory psychosocial evaluation for all patients prior to their admission to the transplant waiting list. Contents, potential contraindications, and the procedure of the evaluation are described. Furthermore, the qualification deemed necessary for the examiners is addressed in detail. Finally, the future need for action is determined.
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Affiliation(s)
- Sylvia Kröncke
- Institut und Poliklinik für Medizinische Psychologie, Universitätsklinikum Hamburg-Eppendorf
| | - Gertrud Greif-Higer
- Klinik und Poliklinik für Psychosomatische Medizin und Psychotherapie, Universitätsmedizin Mainz
| | | | - Martina de Zwaan
- Klinik für Psychosomatik und Psychotherapie, Medizinische Hochschule Hannover
| | - Yesim Erim
- Psychosomatische und Psychotherapeutische Abteilung, Universitätsklinikum Erlangen
| | | | | | - Irene Petersen
- Klinik und Poliklinik für Kinder- und Jugendmedizin, Universitätsklinikum Hamburg-Eppendorf
| | - Karl-Heinz Schulz
- Institut und Poliklinik für Medizinische Psychologie, Universitätsklinikum Hamburg-Eppendorf
| | - Katharina Tigges-Limmer
- Medizinische Psychologie, Klinik für Thorax- und Kardiovaskularchirurgie, Herz- und Diabeteszentrum Nordrhein-Westfalen, Bad Oeynhausen
| | - Frank Vitinius
- Klinik und Poliklinik für Psychosomatik und Psychotherapie, Universitätsklinikum Köln
| | - Kristin Ziegler
- Universitäres Herzzentrum, Universitätsklinikum Hamburg-Eppendorf
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Hartmann A, Heilmann C, Kaps J, Beyersdorf F, Zeh W, Albert W, Wirsching M, Fritzsche K, Joos A. Body image after heart transplantation compared to mechanical aortic valve insertion. Int J Psychiatry Clin Pract 2017; 21:277-282. [PMID: 28503975 DOI: 10.1080/13651501.2017.1324034] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE Heart transplantation (HT) obviously affects body image and integrity. However, there are very few empirical data post-transplant. METHODS In a cross-sectional study, 57 HT patients were compared with 47 subjects with mechanical aortic valve replacement (AVR) using the Dresden-Body-Image questionnaire (DKB) and specific questions regarding integration of the organ/device. In addition, affective symptoms and quality of life (QoL) were assessed (12-Item Short-Form Health Survey and Hospital Anxiety and Depression Scale, HADS). RESULTS DKB-35 scores did not differ. HT patients scored higher than AVR on specific questions regarding integration of the organ/device. AVR patients showed more affective disturbance and lower mental QoL than HT subjects. Affective scores correlated negatively with body image scores. Seventeen percent of all patients showed psychological distress (HADS scores >8). CONCLUSIONS HT patients integrated the new organ well - and even better than AVR subjects did with the device. In general, our data corroborate a good adaptation process, in particular in HT patients. Similar to other reported data, a subgroup of 15-20% of patients shows stronger mental distress, including body image problems. These must be identified and treated by professionals. Patients with AVR deserve more attention in the future.
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Affiliation(s)
- Armin Hartmann
- a Department of Psychosomatic Medicine and Psychotherapy , Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg , Freiburg , Germany
| | - Claudia Heilmann
- b Department of Cardiovascular Surgery, Heart Center , Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg , Freiburg , Germany
| | - Josefine Kaps
- a Department of Psychosomatic Medicine and Psychotherapy , Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg , Freiburg , Germany
| | - Friedhelm Beyersdorf
- b Department of Cardiovascular Surgery, Heart Center , Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg , Freiburg , Germany
| | - Wolfgang Zeh
- c Department of Cardiology and Angiology II , University Heart Centre Freiburg - Bad Krozingen , Bad Krozingen , Germany
| | | | - Michael Wirsching
- a Department of Psychosomatic Medicine and Psychotherapy , Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg , Freiburg , Germany
| | - Kurt Fritzsche
- a Department of Psychosomatic Medicine and Psychotherapy , Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg , Freiburg , Germany
| | - Andreas Joos
- a Department of Psychosomatic Medicine and Psychotherapy , Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg , Freiburg , Germany
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Tigges-Limmer K, Albert W. Arbeitsgemeinschaft „Psyche und Herz“. Z Herz- Thorax- Gefäßchir 2014. [DOI: 10.1007/s00398-013-1059-2] [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]
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Albert W, Hudalla A, Traue K, Hetzer R. Impact of heart transplantation in infancy and adolescence on quality of life and compliance. HSR Proc Intensive Care Cardiovasc Anesth 2012; 4:125-9. [PMID: 23439411 PMCID: PMC3484934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
INTRODUCTION Young patients who undergo heart transplantation in their early childhood or adolescence are confronted with typical developmental problems, which affect their specific adjustment to heart transplantation. This study aims at evaluating patients' health related quality of life and at determining the degree and sources of non-compliant behavior with its somatic and psychosocial consequences. METHODS The study sample consists of 38 patients, who received heart transplantation between the age of 1 and 18 and are now between 16 and 34 years old. All participants received self-rating instruments: The Short-Form Health Survey (SF-36), Giessen Subjective Complaints List (GBB), Medication Experience Scale for Immunosuppressants (MESI), and Health Questionnaire for Children and Young People (KIDSCREEN-27). Patient´s scores were compared to the scores of the specific norm sample. Further assessment was done by semi-structured interviews directed at psychosocial outcome, compliance, relationship to family and peer-group and integration into the work environment. RESULTS In comparison to healthy controls the patients showed a significantly reduced quality of life (SF-36) in all psychological and nearly all somatic domains. Patients emphasized a very close and satisfying relationship to their parents and pronounced overall social support. Almost 50% of the patients reported some reduced medical compliance and 20% are to be seen as a high risk group for noncompliance, simultaneously characterized by poor physical and mental status. CONCLUSION Young adult transplant patients are to be carefully evaluated for psychosocial risks to avoid noncompliance and reduced quality of life in long-term follow up.
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Albert W, Hudalla A, Albert P, Biermann M, Hetzer R. Herztransplantation im Kindes- und Jugendalter - Eine Hochrisikogruppe im Erwachsenenalter? Psychother Psychosom Med Psychol 2011. [DOI: 10.1055/s-0031-1272357] [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: 10/18/2022]
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Albert W, Gresch C, Heidmann V, Hetzer R. Quality of Life as a Prognostic Factor. Thorac Cardiovasc Surg 2009. [DOI: 10.1055/s-2008-1039254] [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: 10/20/2022]
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Petersen S, Hellmich G, Schuster A, Lehmann D, Albert W, Ludwig K. Stapled transanal rectal resection under laparoscopic surveillance for rectocele and concomitant enterocele. Dis Colon Rectum 2006; 49:685-9. [PMID: 16583290 DOI: 10.1007/s10350-006-0512-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PURPOSE Stapled transanal rectal resection recently became a recommended surgical procedure for obstructed defecation syndrome. One problem when using a transanal stapling device for rectal surgery is the potential threat to structures located in front of the anterior rectal wall. We decided to perform a combined procedure of transanal rectal resection with a simultaneous laparoscopy for patients with obstructed defecation syndrome and an enterocele. METHODS Between November 2002 and May 2005 a total of 41 patients were treated surgically for obstructed defecation syndrome. Four patients with concomitant enterocele underwent stapled transanal rectal resection under laparoscopic surveillance. Before surgery all patients underwent preoperative assessment, including clinical examination, colonoscopy, conventional video defecography, dynamic magnetic resonance imaging defecography, gynecology examinations, and psychologic evaluation. RESULTS The mean operative time was 50 (+/-16.5) minutes for the conventional stapled transanal rectal resection and 67 (+/-14.1) minutes for combined laparoscopy and stapled transanal rectal resection (P < 0.01). Three major complications were observed: two had bleeding in the staple line (one from each group) and one had a late abscess in the staple line. CONCLUSIONS The combination of the stapled transanal rectal resection procedure and laparoscopy provides the opportunity to perform transanal rectal resection without the threat of intra-abdominal lesions caused by enterocele.
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Affiliation(s)
- S Petersen
- Department of General and Abdominal Surgery, Dresden-Friedrichstadt Hospital, Dresden, Germany.
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Kurz H, Albert W. Alarmmanagement – Nur geeignet für die Optimierung bestehender Anlagen? CHEM-ING-TECH 2005. [DOI: 10.1002/cite.200590229] [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: 11/12/2022]
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Grauhan O, Chang H, Meyer R, Hiemann N, Albert W, Lehmkuhl H, Dandel M, Hummel M, Knosalla C, Pasic M, Weng Y, Hetzer R. Donor-transmitted coronary atherosclerosis: Impact on outcome after heart transplantation. J Heart Lung Transplant 2005. [DOI: 10.1016/j.healun.2004.11.175] [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] Open
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Grauhan O, Chang H, Meyer R, Hiemann N, Albert W, Lehmkuhl H, Dandel M, Hummel M, Knosalla C, Pasic M, Weng Y, Hetzer R. Impact of donor-transmitted coronary atherosclerosis on outcome after heart transplantation. Thorac Cardiovasc Surg 2005. [DOI: 10.1055/s-2005-861989] [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: 10/26/2022]
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Abstract
UNLABELLED The aim of this study was to perform a risk analysis on the basis of routinely documented variables (age, sex, ASA-classification, priority of operation, malignant disease, intraperitoneal or intrathoracic operation and duration of operation) to identify surgical patients who benefit from a more complex risk assessment. PATIENTS AND METHODS In a prospective observational trial we analysed a consecutive series of 10 395 patients who were operated on in our General Surgical Department from January 1996 until December 2000 in respect to in-hospital mortality. The variables were examined in univariate tests. Factors with significant impact were subsequently included in a multiple logistic regression analysis. This was done for all variables and afterwards for each ASA-class separately. Predictive accuracy of the prediction model was calculated by the area under a receiver operating characteristic curve (AUC (ROC)). RESULTS The overall mortality was 3.9 %. For ASA-classes 2 to 4 we were able to establish a prediction model by means of multiple logistic regression that identified ASA-classification (Odds Ratio [OR ] ASA-class 3 = 3.7; OR ASA-class 4 = 22.4), age (OR 1.019 per year), duration of operation (OR for duration > or = 240 min = 2.25), intraperitoneal/intrathoracic operation (OR = 4.6), emergency operation (OR = 3.1), and malignant disease (OR = 1.5) as independent predictive factors. Both risk group 1 and risk group 5 were excluded from the analysis because there was no mortality in risk group 1 and too few patients in risk group 5. We found an AUC (ROC) of 91.6 % for the considered ASA-classes. CONCLUSION The ASA-classification is a good instrument for the assessment of perioperative mortality. Its predictive power can substantially be improved in the classes 2 to 4 by the variables age, duration of operation, intraperitoneal or intrathoracic operation, priority of operation, and malignant disease.
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Affiliation(s)
- S Stelzner
- Klinik für Allgemein- und Abdominalchirurgie, Krankenhaus Dresden-Friedrichstadt, Städtisches Klinikum, Akademisches Lehrkrankenhaus der Technischen Universität Dresden.
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Abstract
Iatrogenic colonic perforation is a rare but very dangerous complication of colonoscopy. We report on eleven prospectively recorded patients treated between 1994 and 1998. In seven cases the colonoscopy had been done for diagnostic and in four cases for therapeutic reason. Nine women and two men (age range 56 to 92 years) were affected. In 77% the perforation was found in the sigmoid colon. All patients were operated on and five sutures, five resections and one colostomy were performed. No significant differences could be shown in six patients with classical perforation compared with five patients presenting with prolonged abdominal pain. Only duration of symptoms was significantly different in the two groups. Three patients (85, 90 and 92 years) died from late complications.
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Affiliation(s)
- M Freitag
- Klinik für Allgemein- und Abdominalchirurgie, Krankenhaus Dresden-Friedrichstadt, Akademisches Lehrkrankenhaus der TU Dresden
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Petersen S, Tempel S, Freitag M, Albert W, Ludwig K. Large hernia caused by entero-cutaneous fistula after laparoscopic adhesiolysis: Report of a case. Hernia 2000. [DOI: 10.1007/bf01230590] [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]
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Albert W, Kinzel S, Heitmann V, Gehringer A, Buschtons C, Alatsaki A, Gebauer D, Hetzer R. Ten years after orthotopic heart transplantation: Somatic status and quality of life. J Card Fail 1999. [DOI: 10.1016/s1071-9164(99)91606-8] [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]
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Cieslinski G, Albert W, Scheuermann E, Kober G. [Magnesium excretion in urine is not a marker of magnesium deficiency. Reliability of an oral magnesium administration test]. Med Klin (Munich) 1999; 94:82-7. [PMID: 10194952 DOI: 10.1007/bf03044705] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND Serum magnesium analysis does not reflect body content of magnesium. So substitution is based on empirical maneuvers. PATIENTS AND METHOD In a study on 44 patients urinary magnesium excretion was analyzed before and after oral magnesium substitution (40 mval). The provable hypothesis was the estimation that patients in magnesium deficiency under chronical diuretic treatment (n = 11) would have a lower magnesium excretion than patients of the control group (n = 10). Further analysis was done with patients after orthotopic cardiac transplantation (n = 12) and those suffering from coronary heart disease (n = 11). RESULT After oral administration of magnesium in all 4 groups there was a rise in blood levels, only significant in the patient group under chronic diuretic treatment. Urinary magnesium excretion, however, showed no significant differences. Patients after cardiac transplantation had the lowest rise in urinary magnesium excretion. CONCLUSION There was no clear differentiation by means of this oral magnesium substitution test. Magnesium excretion even after oral substitution is of no value to analyze magnesium deficiency.
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Affiliation(s)
- G Cieslinski
- Medizinische Klinik, Krankenhaus Nordwest, Frankfurt
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Albert W, Freitag M, Ludwig K. [The employment schedule act--effects on the young surgeon]. Langenbecks Arch Chir Suppl Kongressbd 1999; 115:806-12. [PMID: 9931728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Since 1. 1. 96, new regulations of working hours have been introduced in our hospital with regard to emergency service and compensation through leisure time. The average payment was reduced by 23% for surgeons on call. By this means, three additional surgeons could be employed. For every resident in training there is now less time for his residency than before. Sufficient surgical residency requires enough time on the ward and in the operating room. Thus, other conditions for residency programs are necessary to avoid unfulfilled tasks being pushed into the pre-existing area of non-documented working hours. Research and any scientific activity take place in leisure time.
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Affiliation(s)
- W Albert
- Klinik für Allgemein- und Abdominalchirurgie, Krankenhaus Dresden-Friedrichstadt
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Abstract
Cases of gallstone ileus (108) were analyzed retrospectively over 30 years. Even today, when laparoscopic cholecystectomy is done, the incidence of this rare disease remains the same. History, clinical and X-ray findings are non-specific. Aerobilia was seen in 17% of the patients. Since 1992 sonography has provided an exact diagnosis in 10 of 15 cases. In the triad of known gallstone, non-specific epigastric pain with assumed small intestinal obstruction, and impossible detection of a stone in the gallbladder, there is strong suspicion of a gallstone ileus. The evidence is given if the gallstone is seen in the bowels. Intraoperatively more than one stone was found in the intestines in 20%, and cholecystoduodenal fistulas were encountered in 83%. Other fistulas are rare. There has been no significant change in mortality for 30 years.
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Affiliation(s)
- M Freitag
- Klinik für Allgemein- und Abdominalchirurgie, Krankenhaus Dresden-Friedrichstadt
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Hetzer R, Albert W, Hummel M, Pasic M, Loebe M, Warnecke H, Haverich A, Borst HG. Status of patients presently living 9 to 13 years after orthotopic heart transplantation. Ann Thorac Surg 1997; 64:1661-8. [PMID: 9436552 DOI: 10.1016/s0003-4975(97)01091-6] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Heart transplantation has a dramatic impact on both life expectancy and quality of life in patients with terminal heart failure. The aim of the study was to evaluate psychologic, social, occupational, and somatic status of patients living long-term, 9 to 13 years after orthotopic heart transplantation. PATIENTS AND METHODS Seventy-seven of 182 patients who received transplants between July 1983 and January 1988 in Hannover (1983-1985; n = 69 patients) and Berlin (1986-1988; n = 113 patients) have survived up to now, 9 to 13 years after transplantation (mean, 10 years 4 months). The patients and their medical records (eg, cardiac catheter studies, echocardiography) were examined to assess their somatic status. Psychologic, social, and occupational status and quality of life data were assessed by combination of self-rating questionnaires (the Short Form Health Survey Questionnaire, Giessener Beschwerdebogen [the Giessen Subjective Complaints List], the Sickness Impact Profile, and the Hospital Anxiety and Depression Scale) and semistructured interviews. RESULTS Ninety-one percent of the patients were in New York Heart Association functional class I (70%) or II (21%). The results of the psychologic investigation revealed a definite impact of the side effects of chronic immunosuppression; however, overall, the quality of life rating was within the normal range. Sixty-seven (86%) patients were married, 51 (66%) patients were retired, 17 (22%) worked full-time or part-time, and 9 (12%) were housewife or houseman. Four male patients have fathered five healthy children 1 to 10 years after the transplantation. More than 75% of the patients had normal systolic ventricular function (mean left ventricular ejection fraction, 0.63). Coronary angiograms were normal or with minor wall irregularities in 86% (n = 66 patients), and revealed severe obstructions in 14% (n = 11). Normal function of all valves was found in one-third of the patients, tricuspid valve incompetence was not found or was insignificant in 87% (n = 67 patients) and severe in 8% (n = 10). Six patients had undergone tricuspid valve replacement, invariably for structural valve defects attributable to biopsy injuries. Fifty-eight patients (75%) exhibited various degrees of compensated renal insufficiency, 7 of them were on chronic hemodialysis, and 2 patients have undergone kidney transplantation. Hepatic function was normal in 68% (n = 52) of the patients, and 1 patient has developed liver cirrhosis. Osteoporosis was diagnosed of the discrete form in 7 (9%) and of a significant degree in 24 patients (31%); 38.5% (n = 30) complained of symptoms of polyneuropathy. CONCLUSIONS The patients surviving 9 to 13 years after orthotopic heart transplantation are mostly in good physical status, the quality of life is comparable to the general population, and only a few of them have significantly limited in their life style. They do show the substantial chronic side effects of long-term immunosuppression, remaining treatment-dependent for a lifetime.
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Affiliation(s)
- R Hetzer
- Deutsches Herzzentrum Berlin, Klinik für Herz-, Thorax- und Gefässchirurgie, Germany
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Albert W. Kosteneinsparung durch den Einsatz neuer Prozeßleittechniken. CHEM-ING-TECH 1997. [DOI: 10.1002/cite.330690927] [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: 11/08/2022]
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Balabanova S, Albert W. [Accumulation and stability of drugs in hair]. Arch Kriminol 1994; 193:100-12. [PMID: 8198430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The transfer of cocaine and methadone into and out of human hair was investigated in vitro. A transfer in either the one or the other direction could not be observed. In addition the drug concentrations in hair obtained form addicts at different distance from the scalp were determined. The results demonstrated a decrease of the drug levels from the proximal to the distal parts of the hair. The dimensions of the decrease varied within wide ranges.
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Kubbies M, Goller B, Schetters B, Bartosek I, Albert W. Glutathione restores normal cell activation and cell cycle progression in cis-platinum treated human lymphocytes. Br J Cancer 1991; 64:843-9. [PMID: 1931604 PMCID: PMC1977464 DOI: 10.1038/bjc.1991.411] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Cis-platinum (CDDP) induces severe inhibition of cell activation and cell cycle progression in PHA-stimulated human PBL's. Applying the novel BrdU/Hoechst flow cytometric technique for high resolution cell cycle analysis we show that CDDP induced multiple cell kinetic disturbances occur simultaneously comprising G0/G1-arrest, and slow down and arrest of cells in S and G2/M-phase. We investigated whether the administration of reduced glutathione (GSH) might rescue cells from proliferative disturbances induced by CDDP. GSH at 0.15 mg ml-1 only partially restored normal cell activation and cell cycle progression. However, at 1.5 mg ml-1 a complete normal proliferation pattern was obtained. At the highest GSH dose rescue from inhibition of cell activation (G0/G1-phase arrest) as well as of cell cycle progression (S- and G2/M-phase arrest) was also present after delayed addition of GSH (1, 4 and 20 h) to CDDP treated PBL's. In addition cell viability of CDDP exposed PBL's is restored after GSH treatment. Our in vitro experiments give evidence that an increase of WBC found in CDDP/GSH treated patients has a real underlying cellular physiological mechanism protecting human peripheral lymphocytes from CDDP toxicity.
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Affiliation(s)
- M Kubbies
- Department of Cell Biology, Research Center Boehringer Mannheim GmbH, Penzberg, Germany
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Wurm B, Albert W. Prozeßleittechnik in Labor- und Technikumsanlagen. CHEM-ING-TECH 1991. [DOI: 10.1002/cite.330630914] [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: 11/09/2022]
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Seyfert UT, Helmling E, Hauck W, Skroch D, Albert W. Comparison of blood biocompatibility during haemodialysis with cuprophane and polyacrylonitrile membranes. Nephrol Dial Transplant 1991; 6:428-34. [PMID: 1876284 DOI: 10.1093/ndt/6.6.428] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Clotting within the dialyser is one of the most significant clinical parameters of biocompatibility. A study was designed to evaluate the biocompatibility of two different dialysis membranes (cuprophane and polyacrylonitrile) during therapy with conventional heparin. Transient leukopenia during cuprophane but not during polyacrylonitrile haemodialysis was observed, and elastase release using polyacryonitrile membranes was reduced (P less than 0.001). An elevation in F VIII:C activity during cuprophane haemodialysis has to be taken as an indication of endothelial disturbances. There was a significant (P less than 0.001) platelet activation (beta-thromboglobulin) and combined thrombin/plasmin generation using cuprophane membranes. This new synthetic polyacrylonitrile membrane inactivates the clotting in an extracorporeal system to a sufficient degree and allows a reduction in dosages of heparin. Platelet activation, platelet turnover, disturbances of endothelium, fibrinolysis activation, and granulocyte activation are reproducible parameters of a described interaction model. They also permit a comparison of different haemodialysis membranes.
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Affiliation(s)
- U T Seyfert
- Med. Klinik III des Staedt. Krankenhauses Kaiserslautern, Germany
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Albert W. Conversation during surgery. South Med J 1990; 83:602. [PMID: 2343342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Macdonald S, Albert W, Maynard M, French P. Survival analysis to explore the characteristics of employee assistance program (EAP) referrals that remain employed. Int J Addict 1989; 24:113-22. [PMID: 2767822 DOI: 10.3109/10826088909047279] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
This study examined characteristics of referrals to employee assistance programs (EAP) associated with subsequent termination of employment. As well, relationships between characteristics of the referrals and program characteristics were explored. Longitudinal data were collected at several time periods for 163 referrals to EAPs from five organizations. Survival analysis was conducted to determine which variables were associated with termination of employment. Females, cohabitating couples, and employees who worked for the organization for 5 or more years were most likely to remain employed. One interesting finding was that people with alcohol problems were significantly more likely to be formal referrals.
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Affiliation(s)
- S Macdonald
- Addiction Research Foundation, London, Ontario, Canada
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Swack JA, Karawya E, Albert W, Fedorko J, Minna JD, Wilson SH. Properties and applications of new monoclonal antibodies raised against calf DNA polymerase alpha. Anal Biochem 1985; 147:10-21. [PMID: 4025810 DOI: 10.1016/0003-2697(85)90003-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A panel of 12 hybridoma cell lines secreting monoclonal antibodies against alpha-polymerase were prepared by fusion of mouse myeloma cells and spleen cells of a rat immunized with homogeneous calf thymus alpha-polymerase. Hybridomas were selected and cloned on the basis of immunobinding to pure alpha-polymerase in solid phase radioimmunoassay. Antibodies secreted by these cells eventually were purified in milligram quantities from ascites fluids. These antibodies, all of the rat immunoglobulin M class, cross-reacted with alpha-polymerases from calf and monkey cells as revealed by immunobinding in radioimmunoassay and by immunoprecipitation of DNA polymerase activity. The antibodies were not capable of neutralizing the enzyme activity. With the methods described these antibodies may be used to immunoprecipitate alpha-polymerase from crude extracts of mammalian cells and to measure levels of the enzyme protein.
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Karawya E, Swack J, Albert W, Fedorko J, Minna JD, Wilson SH. Identification of a higher molecular weight DNA polymerase alpha catalytic polypeptide in monkey cells by monoclonal antibody. Proc Natl Acad Sci U S A 1984; 81:7777-81. [PMID: 6393127 PMCID: PMC392235 DOI: 10.1073/pnas.81.24.7777] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
A monoclonal antibody against purified calf DNA polymerase alpha (deoxynucleosidetriphosphate:DNA deoxynucleotidyltransferase, EC 2.7.7.7) was used to immunoprecipitate proteins from a crude soluble extract of growing monkey BSC-1 cells. Immunoprecipitates contained familiar DNA polymerase alpha catalytic polypeptides of Mrs approximately equal to 115,000 and 70,000 and also a Mr 40,000 catalytic polypeptide; the major component in the immunoprecipitates, however, was a polypeptide of Mr approximately equal to 190,000 not previously identified as a DNA polymerase. This protein was capable of DNA polymerase activity after electroelution from NaDodSO4/polyacrylamide gels and renaturation. The highly purified enzyme so obtained was active with poly(dT).oligo(rA) as template.primer, resistant to dideoxy TTP (ddTTP), and inhibited by aphidicolin and butylphenyldeoxyguanosine 5'-triphosphate, thus identifying it as a DNA polymerase alpha. The results indicate that a polypeptide of Mr approximately equal to 190,000 is an abundant component among DNA polymerase alpha catalytic polypeptides in growing monkey cells.
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Weinmann-Dorsch C, Hedl A, Grummt I, Albert W, Ferdinand FJ, Friis RR, Pierron G, Moll W, Grummt F. Drastic rise of intracellular adenosine(5')tetraphospho(5')adenosine correlates with onset of DNA synthesis in eukaryotic cells. Eur J Biochem 1984; 138:179-85. [PMID: 6692822 DOI: 10.1111/j.1432-1033.1984.tb07897.x] [Citation(s) in RCA: 104] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
An assay of adenosine(5')tetraphospho(5')adenosine (Ap4A), based on the luciferin/luciferase method for ATP measurement, was developed, which allows one to determine picomolar amounts of unlabeled Ap4A in cellular extracts. In eukaryotic cells this method yielded levels of Ap4A varying from 0.01 microM to 13 microM depending on the growth, cell cycle, transformation, and differentiation state of cells. After mitogenic stimulation of G1-arrested mouse 3T3 and baby hamster kidney fibroblasts the Ap4A pools gradually increased 1000-fold during progression through the G1 phase reaching maximum Ap4A concentrations of about 10 microM in the S phase. Quiescent 3T3 cells reach a high level of Ap4A (1 microM) in a 'committed' but prereplicative state if exposed to an external mitogenic stimulant (excess of serum) and simultaneously to a synchronizer which inhibits entry into the S phase (hydroxyurea). When the block for DNA replication was removed at varying times after removal of the stimulant decay of commitment to DNA synthesis was found correlated with a shrinkage of the Ap4A pool. Cells lacking a defined G1 phase (V79 lung fibroblasts, Physarum) possess a constitutively high base level of Ap4A (about 0.3 microM) even during mitosis. From this high level, Ap4A concentration increases only about tenfold during the S phase. Temperature-down-shift experiments, using chick embryo cells infected with transformation-defective temperature-sensitive viral mutants(td-ts), have shown that the expression of the transformed state at 35 degrees C is accompanied by a tenfold increase of the cellular Ap4A pool. Treatment of exponentially growing human cells with interferon leads, concomitantly with an inhibition of DNA syntheses, to a tenfold decrease in intracellular Ap4A levels within 20 h. The possibility of Ap4A being a 'second messenger' of cell cycle and proliferation control is discussed in the light of these results and those reported previously demonstrating that Ap4A is a ligand of mammalian DNA polymerase alpha, triggers DNA replication in quiescent mammalian cells and is active in priming DNA synthesis.
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Grummt F, Albert W, Zastrow G, Schnabel A. Structural and functional properties of DNA polymerase alpha from calf thymus. Adv Exp Med Biol 1984; 179:373-81. [PMID: 6098158 DOI: 10.1007/978-1-4684-8730-5_39] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Lazarkiewicz B, Albert W. [Plasmacytoma of the colon]. Wiad Lek 1982; 35:1365-7. [PMID: 7164459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Höhn M, Albert W, Grummt F. Diadenosine tetraphosphate hydrolase from mouse liver. Purification to homogeneity and partial characterization. J Biol Chem 1982; 257:3003-6. [PMID: 6277921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
An enzyme hydrolyzing diadenosine 5',5"'P1, P4-tetraphosphate (Ap4A) to AMP and ATP has been purified to apparent homogeneity from mouse liver cell extracts. The isolation procedure comprised ammonium sulfate precipitation, chromatography on Sephadex G-75. DEAE-cellulose, blue Sepharose and AMP-Sepharose. The enzyme is a single polypeptide chain with a native Mr = 64,000 with a Km of 1.66 microM and Vmax of 1.25 mumol/min. AMP, ADP, Ap4, GTP, Gp4, Ap3A, Ap5A, Gp3G, and Gp5G are noncompetitive inhibitors of the Ap4A hydrolase activity, whereas Gp4G inhibits Ap4A hydrolysis competitively with a Ki of 6 microM. Theophylline, caffeine, and isobutylmethylxanthine do not or only slightly inhibit Ap4A hydrolysis. Mitogenic factors have no effect on the enzymatic activity of Ap4A hydrolase, excluding that a direct influence of internalized mitogens on Ap4A degradation could be responsible for mitogen-dependent fluctuation of intracellular Ap4A pool sizes.
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Höhn M, Albert W, Grummt F. Diadenosine tetraphosphate hydrolase from mouse liver. Purification to homogeneity and partial characterization. J Biol Chem 1982. [DOI: 10.1016/s0021-9258(19)81064-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Abstract
A sample of highly purified calf thymus alpha-polymerase contained an abundant 118,000 Mr polypeptide as well as five lower molecular weight polypeptides in the range of 54,000- to 64,000-Mr. This 118,000-Mr polypeptide was capable of DNA polymerase activity, as revealed by in situ assay after SDS-polyacrylamide gel electrophoresis. Tryptic peptide mapping indicated that the 118,000-Mr polypeptide shared extensive primary structure homology with 57,000-, 58,000- and 64,000-Mr polypeptides and some limited homology with 54,000- and 56,000-Mr polypeptides. This is the first evidence that lower and higher Mr polypeptides of purified calf thymus alpha-polymerase share sequence homology; these results are interpreted in the context of a model that predicts the existence of a common precursor with molecular weight greater than 140,000.
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Hübscher U, Spanos A, Albert W, Grummt F, Banks GR. Evidence that a high molecular weight replicative DNA polymerase is conserved during evolution. Proc Natl Acad Sci U S A 1981; 78:6771-5. [PMID: 6796965 PMCID: PMC349132 DOI: 10.1073/pnas.78.11.6771] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Using a technique developed recently to detect DNA polymerase activity in situ after NaDodSO4 gel electrophoresis (Spanos, A., Sedgwick, S. G., Yarranton, g. T., Hübscher, U. & Banks, G. R. (1981) Nucleic Acids Res. 9, 1825-1839), we present evidence that a high Mr (greater than or equal to 125,000) polypeptide is responsible for chromosomal DNA replication in prokaryotes, lower eukaryotes and high eukaryotes. Not only extracts from Escherichia coli, Ustilago maydis, Drosophila melanogaster, rat neurones, calf thymus, human fibroblast, and HeLa cells possess such high Mr activities, but also highly purified E. coli DNA polymerase III core enzyme, U. maydis DNA polymerase, and D. melanogaster embryo and calf thymus DNA alpha polymerases. The evidence that these activities are responsible for chromosomal DNA replication is genetical (E. coli, U. maydis, and D. melanogaster); also, the high Mr activity disappears from rat neurones during differentiation from an actively dividing precursor cell to a postmitotically mature neurone. Furthermore, when limited proteolysis is allowed to occur, a defined and remarkably similar pattern of intermediate Mr activities is generated in lower eukaryotic and high eukaryotic extracts and, to some extent, in prokaryotic extracts. In higher eukaryotic extracts, a low Mr activity of approximately 35,000 is also generated. Protease inhibitors can retard formation of these catalytically active proteolytic fragments. We propose that the replicative DNA polymerase complex of both prokaryotes and eukaryotes contains a high Mr polypeptide responsible for chain elongation which might be conserved during evolution and which is extremely sensitive to proteolytic cleavage.
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Albert W, Stasiak K, Kibler J. Basaloid adenoma in the breast of woman treated with oral contraceptives. Patol Pol 1980; 31:597-601. [PMID: 7243355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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