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Michels-Zetsche JD, Schubert-Haack J, Tanck K, Neetz B, Iberl G, Müller M, Kempa A, Joves B, Rheinhold A, Ghiani A, Tsitouras K, Schneider A, Rauch C, Gehrig P, Biehler E, Fleischauer T, Britsch S, Frerk T, Szecsenyi J, Herth FJF, Trudzinski FC. E-learning-an interventional element of the PRiVENT project to improve weaning expertise. BMC Med Educ 2024; 24:420. [PMID: 38641835 PMCID: PMC11027525 DOI: 10.1186/s12909-024-05416-z] [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] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 04/11/2024] [Indexed: 04/21/2024]
Abstract
BACKGROUND PRiVENT (PRevention of invasive VENTilation) is an evaluation of a bundle of interventions aimed at the prevention of long-term invasive mechanical ventilation. One of these elements is an e-learning course for healthcare professionals to improve weaning expertise. The aim of our analysis is to examine the implementation of the course in cooperating intensive care units. METHODS The course has been developed through a peer review process by pulmonary and critical care physicians in collaboration with respiratory therapists, supported by health services researchers and a professional e-learning agency. The e-learning platform "weLearn" was made available online to participating healthcare professionals. Feedback on the e-learning programme was obtained and discussed in quality circles (QCs). We measured the acceptance and use of the programme through access statistics. RESULTS The e-learning course "Joint Prevention of Long-Term Ventilation" consists of 7 separate modules with practice-oriented training units as well as a cross-module area and corresponding interactive case studies. Users can receive 23 CME (continuing medical education) credits. The platform was released on July 1, 2021. By June 28, 2023, 214 users from 33 clinics had registered. Most users (77-98%) completed the modules, thus performing well in the test, where 90-100% passed. In the QCs, the users commended the structure and practical relevance of the programme, as well as the opportunity to earn CME credits. CONCLUSION Especially for medical staff in intensive care units, where continuous training is often a challenge during shift work, e-learning is a useful supplement to existing medical training. TRIAL REGISTRATION The PRiVENT study is registered at ClinicalTrials.gov (NCT05260853) on 02/03/2022.
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Affiliation(s)
- Julia D Michels-Zetsche
- Department of Pneumology and Critical Care, Thoraxklinik, University Hosptial Heidelberg, Translational Lung Research Center Heidelberg (TLRC-H), Member of the German Center for Lung Research (DZL), Heidelberg, Germany.
| | - Janina Schubert-Haack
- aQua Institute for Applied Quality Improvement and Research in Health Care, Göttingen, Germany
| | - Katrin Tanck
- Common Sense eLearning & Training Consultants GmbH, Vienna, Austria
| | - Benjamin Neetz
- Department of Pneumology and Critical Care, Thoraxklinik, University Hosptial Heidelberg, Translational Lung Research Center Heidelberg (TLRC-H), Member of the German Center for Lung Research (DZL), Heidelberg, Germany
| | - Gabriele Iberl
- Department of Pneumology and Critical Care, Thoraxklinik, University Hosptial Heidelberg, Translational Lung Research Center Heidelberg (TLRC-H), Member of the German Center for Lung Research (DZL), Heidelberg, Germany
| | - Michael Müller
- Department of Pneumology and Critical Care, Thoraxklinik, University Hosptial Heidelberg, Translational Lung Research Center Heidelberg (TLRC-H), Member of the German Center for Lung Research (DZL), Heidelberg, Germany
| | - Axel Kempa
- Department of Pneumology and Critical Care Medicine, SLK Loewenstein Lung Center, Loewenstein, Germany
| | - Biljana Joves
- Department of Pneumology and Critical Care Medicine, SLK Loewenstein Lung Center, Loewenstein, Germany
| | - Andreas Rheinhold
- Department of Pneumology and Critical Care Medicine, SLK Loewenstein Lung Center, Loewenstein, Germany
| | - Alessandro Ghiani
- Department of Pneumology and Respiratory Medicine, Robert-Bosch-Krankenhaus Klinik Schillerhöhe, Gerlingen, Germany
| | - Konstantinos Tsitouras
- Department of Pneumology and Respiratory Medicine, Robert-Bosch-Krankenhaus Klinik Schillerhöhe, Gerlingen, Germany
| | - Armin Schneider
- Department of Anaesthesia and Intensive Care Medicine Waldburg-Zeil Kliniken, Wangen im Allgäu, Germany
| | - Christoph Rauch
- Department of Pneumology, Critical Care and Allergology, Lung Centre South-West, Wangen im Allgäu, Germany
| | - Patrick Gehrig
- Department of Pneumology, Critical Care and Allergology, Lung Centre South-West, Wangen im Allgäu, Germany
| | - Elena Biehler
- Department of General Practice and Health Services Research, University Hospital Heidelberg, Heidelberg, Germany
| | - Thomas Fleischauer
- Department of General Practice and Health Services Research, University Hospital Heidelberg, Heidelberg, Germany
| | - Simone Britsch
- Department of Cardiology, Angiology, Haemostaseology and Medical Intensive Care, University Medical Center Mannheim, Mannheim, Germany
- European Center for Angioscience (ECAS) and German Center for Cardiovascular Research (DZHK), Partner Site Heidelberg/Mannheim, Mannheim, Germany
| | - Timm Frerk
- aQua Institute for Applied Quality Improvement and Research in Health Care, Göttingen, Germany
| | - Joachim Szecsenyi
- aQua Institute for Applied Quality Improvement and Research in Health Care, Göttingen, Germany
| | - Felix J F Herth
- Department of Pneumology and Critical Care, Thoraxklinik, University Hosptial Heidelberg, Translational Lung Research Center Heidelberg (TLRC-H), Member of the German Center for Lung Research (DZL), Heidelberg, Germany
| | - Franziska C Trudzinski
- Department of Pneumology and Critical Care, Thoraxklinik, University Hosptial Heidelberg, Translational Lung Research Center Heidelberg (TLRC-H), Member of the German Center for Lung Research (DZL), Heidelberg, Germany
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Ghiani A, Tsitouras K, Paderewska J, Kahnert K, Walcher S, Gernhold L, Neurohr C, Kneidinger N. Ventilatory ratio and mechanical power in prolonged mechanically ventilated COVID-19 patients versus respiratory failures of other etiologies. Ther Adv Respir Dis 2023; 17:17534666231155744. [PMID: 36846917 PMCID: PMC9971705 DOI: 10.1177/17534666231155744] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 01/23/2023] [Indexed: 03/01/2023] Open
Abstract
BACKGROUND Evidence suggests differences in ventilation efficiency and respiratory mechanics between early COVID-19 pneumonia and classical acute respiratory distress syndrome (ARDS), as measured by established ventilatory indexes, such as the ventilatory ratio (VR; a surrogate of the pulmonary dead-space fraction) or mechanical power (MP; affected, e.g., by changes in lung-thorax compliance). OBJECTIVES The aim of this study was to evaluate VR and MP in the late stages of the disease when patients are ready to be liberated from the ventilator after recovering from COVID-19 pneumonia compared to respiratory failures of other etiologies. DESIGN A retrospective observational cohort study of 249 prolonged mechanically ventilated, tracheotomized patients with and without COVID-19-related respiratory failure. METHODS We analyzed each group's VR and MP distributions and trajectories [repeated-measures analysis of variance (ANOVA)] during weaning. Secondary outcomes included weaning failure rates between groups and the ability of VR and MP to predict weaning outcomes (using logistic regression models). RESULTS The analysis compared 53 COVID-19 cases with a heterogeneous group of 196 non-COVID-19 subjects. VR and MP decreased across both groups during weaning. COVID-19 patients demonstrated higher values for both indexes throughout weaning: median VR 1.54 versus 1.27 (p < 0.01) and MP 26.0 versus 21.3 Joule/min (p < 0.01) at the start of weaning, and median VR 1.38 versus 1.24 (p < 0.01) and MP 24.2 versus 20.1 Joule/min (p < 0.01) at weaning completion. According to the multivariable analysis, VR was not independently associated with weaning outcomes, and the ability of MP to predict weaning failure or success varied with lung-thorax compliance, with COVID-19 patients demonstrating consistently higher dynamic compliance along with significantly fewer weaning failures (9% versus 30%, p < 0.01). CONCLUSION COVID-19 patients differed considerably in ventilation efficiency and respiratory mechanics among prolonged ventilated individuals, demonstrating significantly higher VRs and MP. The differences in MP were linked with higher lung-thorax compliance in COVID-19 patients, possibly contributing to the lower rate of weaning failures observed.
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Affiliation(s)
- Alessandro Ghiani
- Department of Pulmonology and Respiratory
Medicine, Lung Center Stuttgart – Schillerhoehe Lung Clinic (affiliated to
the Robert-Bosch-Hospital GmbH, Stuttgart), Auerbachstr. 110, 70376
Stuttgart, Germany
| | - Konstantinos Tsitouras
- Department of Pulmonology and Respiratory
Medicine, Lung Center Stuttgart – Schillerhoehe Lung Clinic (affiliated to
the Robert-Bosch-Hospital GmbH, Stuttgart), Stuttgart, Germany
| | - Joanna Paderewska
- Department of Pulmonology and Respiratory
Medicine, Lung Center Stuttgart – Schillerhoehe Lung Clinic (affiliated to
the Robert-Bosch-Hospital GmbH, Stuttgart), Stuttgart, Germany
| | - Kathrin Kahnert
- Department of Internal Medicine V,
Ludwig-Maximilians-University (LMU) of Munich, Munich, Germany
- Comprehensive Pneumology Center (CPC-M), Member
of the German Center for Lung Research (DZL), Munich, Germany
| | - Swenja Walcher
- Department of Pulmonology and Respiratory
Medicine, Lung Center Stuttgart – Schillerhoehe Lung Clinic (affiliated to
the Robert-Bosch-Hospital GmbH, Stuttgart), Stuttgart, Germany
| | - Lukas Gernhold
- Department of Pulmonology and Respiratory
Medicine, Lung Center Stuttgart – Schillerhoehe Lung Clinic (affiliated to
the Robert-Bosch-Hospital GmbH, Stuttgart), Stuttgart, Germany
| | - Claus Neurohr
- Department of Pulmonology and Respiratory
Medicine, Lung Center Stuttgart – Schillerhoehe Lung Clinic (affiliated to
the Robert-Bosch-Hospital GmbH, Stuttgart), Stuttgart, Germany
- Comprehensive Pneumology Center (CPC-M), Member
of the German Center for Lung Research (DZL), Munich, Germany
| | - Nikolaus Kneidinger
- Department of Internal Medicine V,
Ludwig-Maximilians-University (LMU) of Munich, Munich, Germany
- Comprehensive Pneumology Center (CPC-M),
Member of the German Center for Lung Research (DZL), Munich, Germany
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Ghiani A, Tsitouras K, Paderewska J, Milger K, Walcher S, Weiffenbach M, Neurohr C, Kneidinger N. Incidence, causes, and predictors of unsuccessful decannulation following prolonged weaning. Ther Adv Chronic Dis 2022; 13:20406223221109655. [PMID: 35959504 PMCID: PMC9358569 DOI: 10.1177/20406223221109655] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 06/06/2022] [Indexed: 11/15/2022] Open
Abstract
Background Liberation from prolonged tracheostomy ventilation involves ventilator weaning and removal of the tracheal cannula (referred to as decannulation). This study evaluated the incidence, causes, and predictors of unsuccessful decannulation following prolonged weaning. Methods Observational retrospective cohort study of 532 prolonged mechanically ventilated, tracheotomized patients treated at a specialized weaning center between June 2013 and January 2021. We summarized the causes for unsuccessful decannulations and used a binary logistic regression analysis to derive and validate associated predictors. Results Failure to decannulate occurred in 216 patients (41%). The main causes were severe intensive care unit (ICU)-acquired dysphagia (64%), long-term ventilator dependence following weaning failure (41%), excessive respiratory secretions (12%), unconsciousness (4%), and airway obstruction (3%). Predictors of unsuccessful decannulation from any cause were age [odds ratio (OR) = 1.04 year-1; 95% confidence interval (CI), 1.02-1.06; p < 0.01], body mass index [0.96 kg/m2 (0.93-1.00); p = 0.027], Acute Physiology and Chronic Health Evaluation II (APACHE-II) score [1.05 (1.00-1.10); p = 0.036], pre-existing non-invasive home ventilation [3.57 (1.51-8.45); p < 0.01], percutaneous tracheostomies [0.49 (0.30-0.80); p < 0.01], neuromuscular diseases [4.28 (1.21-15.1); p = 0.024], and total mechanical ventilation duration [1.02 day-1 (1.01-1.02); p < 0.01]. Regression models examined in subsets of patients with severe dysphagia and long-term ventilator dependence as the main reason for failure revealed little overlapping among predictors, which even showed opposite effects on the outcome. The application of non-invasive ventilation as a weaning technique contributed to successful decannulation in 96 of 221 (43%) long-term ventilator-dependent patients following weaning failure. Conclusion Failure to decannulate after prolonged weaning occurred in 41%, mainly resulting from persistent ICU-acquired dysphagia and long-term ventilator dependence following weaning failure, each associated with its own set of predictors.
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Affiliation(s)
- Alessandro Ghiani
- Lung Center Stuttgart - Schillerhoehe Lung Clinic, Department of Pulmonology and Respiratory Medicine, Affiliated to the Robert-Bosch-Hospital GmbH, Auerbachstr. 110, 70376 Stuttgart, Germany
| | - Konstantinos Tsitouras
- Lung Center Stuttgart - Schillerhoehe Lung Clinic, Department of Pulmonology and Respiratory Medicine, Affiliated to the Robert-Bosch-Hospital GmbH, Stuttgart, Germany
| | - Joanna Paderewska
- Lung Center Stuttgart - Schillerhoehe Lung Clinic, Department of Pulmonology and Respiratory Medicine, Affiliated to the Robert-Bosch-Hospital GmbH, Stuttgart, Germany
| | - Katrin Milger
- Department of Internal Medicine V (Pulmonology), Ludwig-Maximilians-University (LMU) of Munich, Munich, Germany
| | - Swenja Walcher
- Lung Center Stuttgart - Schillerhoehe Lung Clinic, Department of Pulmonology and Respiratory Medicine, Affiliated to the Robert-Bosch-Hospital GmbH, Stuttgart, Germany
| | - Mareike Weiffenbach
- Department of Acute Geriatrics and Geriatric Rehabilitation, Robert-Bosch-Hospital GmbH, Stuttgart, Germany
| | - Claus Neurohr
- Lung Center Stuttgart - Schillerhoehe Lung Clinic, Department of Pulmonology and Respiratory Medicine, Affiliated to the Robert-Bosch-Hospital GmbH, Stuttgart, Germany
| | - Nikolaus Kneidinger
- Department of Internal Medicine V (Pulmonology), Ludwig-Maximilians-University (LMU) of Munich, Munich, Germany
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Ghiani A, Tsitouras K, Paderewska J, Munker D, Walcher S, Neurohr C, Kneidinger N. Tracheal stenosis in prolonged mechanically ventilated patients: prevalence, risk factors, and bronchoscopic management. BMC Pulm Med 2022; 22:24. [PMID: 34991555 PMCID: PMC8740413 DOI: 10.1186/s12890-022-01821-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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: 10/14/2021] [Accepted: 12/31/2021] [Indexed: 11/14/2022] Open
Abstract
Background Various complications may arise from prolonged mechanical ventilation, but the risk of tracheal stenosis occurring late after translaryngeal intubation or tracheostomy is less common. This study aimed to determine the prevalence, type, risk factors, and management of tracheal stenoses in mechanically ventilated tracheotomized patients deemed ready for decannulation following prolonged weaning. Methods A retrospective observational study on 357 prolonged mechanically ventilated, tracheotomized patients admitted to a specialized weaning center over seven years. Flexible bronchoscopy was used to discern the type, level, and severity of tracheal stenosis in each case. We described the management of these stenoses and used a binary logistic regression analysis to determine independent risk factors for stenosis development. Results On admission, 272 patients (76%) had percutaneous tracheostomies, and 114 patients (32%) presented mild to moderate tracheal stenosis following weaning completion, with a median tracheal cross-section reduction of 40% (IQR 25–50). The majority of stenoses (88%) were located in the upper tracheal region, most commonly resulting from localized granulation tissue formation at the site of the internal stoma (96%). The logistic regression analysis determined that obesity (OR 2.16 [95%CI 1.29–3.63], P < 0.01), presence of a percutaneous tracheostomy (2.02 [1.12–3.66], P = 0.020), and cricothyrotomy status (5.35 [1.96–14.6], P < 0.01) were independently related to stenoses. Interventional bronchoscopy with Nd:YAG photocoagulation was a highly effective first-line treatment, with only three patients (2.6%) ultimately referred to tracheal surgery. Conclusions Tracheal stenosis is commonly observed among prolonged ventilated patients with tracheostomies, characterized by localized hypergranulation and mild to moderate airway obstruction, with interventional bronchoscopy providing satisfactory results. Supplementary Information The online version contains supplementary material available at 10.1186/s12890-022-01821-6.
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Affiliation(s)
- Alessandro Ghiani
- Department of Pulmonology and Respiratory Medicine, Lung Center Stuttgart - Schillerhoehe Lung Clinic (Affiliated to the Robert-Bosch-Hospital GmbH, Stuttgart), Auerbachstrasse 110, 70376, Stuttgart, Germany.
| | - Konstantinos Tsitouras
- Department of Pulmonology and Respiratory Medicine, Lung Center Stuttgart - Schillerhoehe Lung Clinic (Affiliated to the Robert-Bosch-Hospital GmbH, Stuttgart), Auerbachstrasse 110, 70376, Stuttgart, Germany
| | - Joanna Paderewska
- Department of Pulmonology and Respiratory Medicine, Lung Center Stuttgart - Schillerhoehe Lung Clinic (Affiliated to the Robert-Bosch-Hospital GmbH, Stuttgart), Auerbachstrasse 110, 70376, Stuttgart, Germany
| | - Dieter Munker
- Department of Internal Medicine V, Ludwig-Maximilians-University (LMU) of Munich, Munich, Germany
| | - Swenja Walcher
- Department of Pulmonology and Respiratory Medicine, Lung Center Stuttgart - Schillerhoehe Lung Clinic (Affiliated to the Robert-Bosch-Hospital GmbH, Stuttgart), Auerbachstrasse 110, 70376, Stuttgart, Germany
| | - Claus Neurohr
- Department of Pulmonology and Respiratory Medicine, Lung Center Stuttgart - Schillerhoehe Lung Clinic (Affiliated to the Robert-Bosch-Hospital GmbH, Stuttgart), Auerbachstrasse 110, 70376, Stuttgart, Germany.,Comprehensive Pneumology Center (CPC-M), Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Nikolaus Kneidinger
- Department of Internal Medicine V, Ludwig-Maximilians-University (LMU) of Munich, Munich, Germany.,Comprehensive Pneumology Center (CPC-M), Member of the German Center for Lung Research (DZL), Munich, Germany
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Herr C, Tsitouras K, Niederstraßer J, Backes C, Beisswenger C, Dong L, Guillot L, Keller A, Bals R. Cigarette smoke and electronic cigarettes differentially activate bronchial epithelial cells. Respir Res 2020; 21:67. [PMID: 32164736 PMCID: PMC7068890 DOI: 10.1186/s12931-020-1317-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [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: 09/25/2019] [Accepted: 02/10/2020] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND The use of electronic cigarettes (ECIGs) is increasing, but the impact of ECIG-vapor on cellular processes like inflammation or host defense are less understood. The aim of the present study was to compare the acute effects of traditional cigarettes (TCIGs) and ECIG-exposure on host defense, inflammation, and cellular activation of cell lines and primary differentiated human airway epithelial cells (pHBE). METHODS We exposed pHBEs and several cell lines to TCIG-smoke or ECIG-vapor. Epithelial host defense and barrier integrity were determined. The transcriptome of airway epithelial cells was compared by gene expression array analysis. Gene interaction networks were constructed and differential gene expression over all groups analyzed. The expression of several candidate genes was validated by qRT-PCR. RESULTS Bacterial killing, barrier integrity and the expression of antimicrobial peptides were not affected by ECIG-vapor compared to control samples. In contrast, TCIGs negatively affected host defense and reduced barrier integrity in a significant way. Furthermore ECIG-exposure significantly induced IL-8 secretion from Calu-3 cells but had no effect on NCI-H292 or primary cells. The gene expression based on array analysis distinguished TCIG-exposed cells from ECIG and room air-exposed samples. CONCLUSION The transcriptome patterns of host defense and inflammatory genes are significantly distinct between ECIG-exposed and TCIG-treated cells. The overall effects of ECIGs on epithelial cells are less in comparison to TCIG, and ECIG-vapor does not affect host defense. Nevertheless, although acute exposure to ECIG-vapor induces inflammation, and the expression of S100 proteins, long term in vivo data is needed to evaluate the chronic effects of ECIG use.
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Affiliation(s)
- Christian Herr
- Department of Internal Medicine V - Pulmonology, Allergology and Critical Care Medicine, Saarland University, D-66421, Homburg, Germany.
| | - Konstantinos Tsitouras
- Department of Internal Medicine V - Pulmonology, Allergology and Critical Care Medicine, Saarland University, D-66421, Homburg, Germany
| | - Julia Niederstraßer
- Department of Internal Medicine V - Pulmonology, Allergology and Critical Care Medicine, Saarland University, D-66421, Homburg, Germany
| | - Christina Backes
- Clinical Bioinformatics, Saarland University, University Hospital, 66123, Saarbrücken, Germany
| | - Christoph Beisswenger
- Department of Internal Medicine V - Pulmonology, Allergology and Critical Care Medicine, Saarland University, D-66421, Homburg, Germany
| | - Li Dong
- Department of Clinical Laboratory, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai, 200065, China
| | - Loïc Guillot
- Sorbonne Universités, UPMC Univ Paris 06, INSERM, Centre de Recherche Saint-Antoine (CRSA), 75012, Paris, France
| | - Andreas Keller
- Clinical Bioinformatics, Saarland University, University Hospital, 66123, Saarbrücken, Germany
| | - Robert Bals
- Department of Internal Medicine V - Pulmonology, Allergology and Critical Care Medicine, Saarland University, D-66421, Homburg, Germany
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Wehrfritz H, Trudzinski F, Assmann G, Zewinger S, Kamp A, Tauchnitz M, Seiler F, Alqudrah M, Tsitouras K, Bals R, Lepper PM. Extrakorporale Membranoxygenierung bei einem Patienten mit schwerem ARDS infolge einer Granulomatose mit Polyangiitis. Pneumologie 2017. [DOI: 10.1055/s-0037-1598323] [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: 10/20/2022]
Affiliation(s)
- H Wehrfritz
- Klinik für Innere Medizin V, Pneumologie, Allergologie, Beatmungs- und Umweltmedizin, Universitätsklinikum des Saarlandes
| | - F Trudzinski
- Klinik für Innere Medizin V, Pneumologie, Allergologie, Beatmungs- und Umweltmedizin, Universitätsklinikum des Saarlandes
| | - G Assmann
- Hämatologie, Klin. Immunologie und Rheumatologie, Universitätsklinikum des Saarlandes
| | - S Zewinger
- Klinik für Innere Medizin IV, Nieren- und Hochdruckkrankheiten, Universitätsklinikum des Saarlandes
| | - A Kamp
- Klinik für Innere Medizin V, Pneumologie, Allergologie, Beatmungs- und Umweltmedizin, Universitätsklinikum des Saarlandes
| | - M Tauchnitz
- Klinik für Innere Medizin V, Pneumologie, Allergologie, Beatmungs- und Umweltmedizin, Universitätsklinikum des Saarlandes
| | - F Seiler
- Klinik für Innere Medizin V, Pneumologie, Allergologie, Beatmungs- und Umweltmedizin, Universitätsklinikum des Saarlandes
| | - M Alqudrah
- Klinik für Innere Medizin V, Pneumologie, Allergologie, Beatmungs- und Umweltmedizin, Universitätsklinikum des Saarlandes
| | - K Tsitouras
- Klinik für Innere Medizin V, Pneumologie, Allergologie, Beatmungs- und Umweltmedizin, Universitätsklinikum des Saarlandes
| | - R Bals
- Klinik für Innere Medizin V, Pneumologie, Allergologie, Beatmungs- und Umweltmedizin, Universitätsklinikum des Saarlandes
| | - PM Lepper
- Klinik für Innere Medizin V, Pneumologie, Allergologie, Beatmungs- und Umweltmedizin, Universitätsklinikum des Saarlandes
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