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Eichhorn F, Hoffmann H, Rieken S, Herth FJF, Winter H. [Tracheal Tumours]. Zentralbl Chir 2024; 149:286-297. [PMID: 38382560 DOI: 10.1055/a-2223-1175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Malignant primary tracheal tumours are rare. The most common histological subtypes are squamous cell carcinoma and adenoid cystic carcinoma. These two entities have different prognoses and growth patterns. Tracheobronchoscopy and thoracic sectional imaging are standard diagnostic tools for tumour staging and local evaluation. Complete surgical resection of the affected tracheal segment is the treatment of choice for limited disease without distant metastases. Incomplete gross tumour resection with additional irradiation is an acceptable therapeutic option for adenoid cystic carcinoma. Interventional endoscopy with tumour debulking or tracheal stenting and/or definitive mediastinal radiotherapy are treatment alternatives in either a locally advanced or palliative setting.
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MESH Headings
- Tracheal Neoplasms/surgery
- Tracheal Neoplasms/pathology
- Tracheal Neoplasms/diagnosis
- Tracheal Neoplasms/therapy
- Tracheal Neoplasms/diagnostic imaging
- Humans
- Carcinoma, Adenoid Cystic/pathology
- Carcinoma, Adenoid Cystic/surgery
- Carcinoma, Adenoid Cystic/diagnostic imaging
- Carcinoma, Adenoid Cystic/therapy
- Carcinoma, Adenoid Cystic/diagnosis
- Bronchoscopy
- Neoplasm Staging
- Carcinoma, Squamous Cell/pathology
- Carcinoma, Squamous Cell/surgery
- Carcinoma, Squamous Cell/diagnosis
- Carcinoma, Squamous Cell/therapy
- Carcinoma, Squamous Cell/diagnostic imaging
- Trachea/surgery
- Trachea/pathology
- Trachea/diagnostic imaging
- Prognosis
- Combined Modality Therapy
- Tomography, X-Ray Computed
- Stents
- Palliative Care
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Affiliation(s)
- Florian Eichhorn
- Abteilung für Thoraxchirurgie, Thoraxklinik-Heidelberg gGmbH, Heidelberg, Deutschland
| | - Hans Hoffmann
- Sektion Thoraxchirurgie, Klinikum rechts der Isar der Technischen Universität München, München, Deutschland
| | - Stefan Rieken
- Klinik und Poliklinik für Strahlentherapie und Radioonkologie, Universität Göttingen, Medizinische Fakultät, Göttingen, Deutschland
| | - Felix J F Herth
- Abteilung für Pneumologie und Beatmungsmedizin, Thoraxklinik-Heidelberg gGmbH, Heidelberg, Deutschland
| | - Hauke Winter
- Abteilung für Thoraxchirurgie, Thoraxklinik-Heidelberg gGmbH, Heidelberg, Deutschland
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Widmann M, Gaidai R, Schubert I, Grummt M, Bensen L, Kerling A, Quermann A, Zacher J, Vollrath S, Bizjak DA, Beckendorf C, Egger F, Hasler E, Mellwig KP, Fütterer C, Wimbauer F, Vogel A, Schoenfeld J, Wüstenfeld JC, Kastner T, Barsch F, Friedmann-Bette B, Bloch W, Meyer T, Mayer F, Wolfarth B, Roecker K, Reinsberger C, Haller B, Niess AM. COVID-19 in Female and Male Athletes: Symptoms, Clinical Findings, Outcome, and Prolonged Exercise Intolerance-A Prospective, Observational, Multicenter Cohort Study (CoSmo-S). Sports Med 2024; 54:1033-1049. [PMID: 38206445 PMCID: PMC11052799 DOI: 10.1007/s40279-023-01976-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/23/2023] [Indexed: 01/12/2024]
Abstract
BACKGROUND An infection with SARS-CoV-2 can lead to a variety of symptoms and complications, which can impair athletic activity. OBJECTIVE We aimed to assess the clinical symptom patterns, diagnostic findings, and the extent of impairment in sport practice in a large cohort of athletes infected with SARS-CoV-2, both initially after infection and at follow-up. Additionally, we investigated whether baseline factors that may contribute to reduced exercise tolerance at follow-up can be identified. METHODS In this prospective, observational, multicenter study, we recruited German COVID elite-athletes (cEAs, n = 444) and COVID non-elite athletes (cNEAs, n = 481) who tested positive for SARS-CoV-2 by PCR (polymerase chain reaction test). Athletes from the federal squad with no evidence of SARS-CoV-2 infection served as healthy controls (EAcon, n = 501). Questionnaires were used to assess load and duration of infectious symptoms, other complaints, exercise tolerance, and duration of training interruption at baseline and at follow-up 6 months after baseline. Diagnostic tests conducted at baseline included resting and exercise electrocardiogram (ECG), echocardiography, spirometry, and blood analyses. RESULTS Most acute and infection-related symptoms and other complaints were more prevalent in cNEA than in cEAs. Compared to cEAs, EAcon had a low symptom load. In cNEAs, female athletes had a higher prevalence of complaints such as palpitations, dizziness, chest pain, myalgia, sleeping disturbances, mood swings, and concentration problems compared to male athletes (p < 0.05). Until follow-up, leading symptoms were drop in performance, concentration problems, and dyspnea on exertion. Female athletes had significantly higher prevalence for symptoms until follow-up compared to male. Pathological findings in ECG, echocardiography, and spirometry, attributed to SARS-CoV-2 infection, were rare in infected athletes. Most athletes reported a training interruption between 2 and 4 weeks (cNEAs: 52.9%, cEAs: 52.4%), while more cNEAs (27.1%) compared to cEAs (5.1%) had a training interruption lasting more than 4 weeks (p < 0.001). At follow-up, 13.8% of cNEAs and 9.9% of cEAs (p = 0.24) reported their current exercise tolerance to be under 70% compared to pre-infection state. A persistent loss of exercise tolerance at follow-up was associated with persistent complaints at baseline, female sex, a longer break in training, and age > 38 years. Periodical dichotomization of the data set showed a higher prevalence of infectious symptoms such as cough, sore throat, and coryza in the second phase of the pandemic, while a number of neuropsychiatric symptoms as well as dyspnea on exertion were less frequent in this period. CONCLUSIONS Compared to recreational athletes, elite athletes seem to be at lower risk of being or remaining symptomatic after SARS-CoV-2 infection. It remains to be determined whether persistent complaints after SARS-CoV-2 infection without evidence of accompanying organ damage may have a negative impact on further health and career in athletes. Identifying risk factors for an extended recovery period such as female sex and ongoing neuropsychological symptoms could help to identify athletes, who may require a more cautious approach to rebuilding their training regimen. TRIAL REGISTRATION NUMBER DRKS00023717; 06.15.2021-retrospectively registered.
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Affiliation(s)
- Manuel Widmann
- Department of Sports Medicine, Medical Clinic, Medical University Hospital Tuebingen, University Hospital of Tuebingen, Hoppe-Seyler Str. 6, 72076, Tuebingen, Germany.
| | - Roman Gaidai
- Department of Sports and Health, Institute of Sports Medicine, Paderborn University, Paderborn, Germany
| | - Isabel Schubert
- Department of Sports Medicine, Medical Clinic, Medical University Hospital Tuebingen, University Hospital of Tuebingen, Hoppe-Seyler Str. 6, 72076, Tuebingen, Germany
| | - Maximilian Grummt
- Department of Sports Medicine, Charité-Universitätsmedizin Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Lieselotte Bensen
- Department of Sports Medicine, Charité-Universitätsmedizin Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Arno Kerling
- Clinic for Rehabilitation and sports medicine, Hannover Medical School, Hannover, Germany
| | - Anne Quermann
- Medical Clinic VII, Department of Sports Medicine, University Hospital Heidelberg, Heidelberg, Germany
| | - Jonas Zacher
- Department of Preventative and Rehabilitative Sports and Performance Medicine, Institute of Cardiology and Sports Medicine, German Sports University Cologne, Cologne, Germany
| | - Shirin Vollrath
- Division of Sports and Rehabilitation Medicine, Ulm University Medical Center, Ulm, Germany
| | | | - Claudia Beckendorf
- Center of Sports Medicine, Outpatient Clinic, University of Potsdam, Potsdam, Germany
| | - Florian Egger
- Institute of Sports and Preventive Medicine, Saarland University, Saarbrücken, Germany
| | - Erik Hasler
- Institute for Applied Health Promotion and Exercise Medicine (IfAG), Furtwangen University, Furtwangen, Germany
| | - Klaus-Peter Mellwig
- Clinic for General and Interventional Cardiology/Angiology, Herz-und Diabeteszentrum NRW, Ruhr-Universität Bochum, Bad Oeynhausen, Germany
| | - Cornelia Fütterer
- School of Medicine, Institute of AI and Informatics in Medicine, Technical University of Munich, Munich, Germany
| | - Fritz Wimbauer
- Department of Prevention and Sports Medicine, University Hospital 'Rechts Der Isar', Technical University of Munich, Munich, Germany
| | - Azin Vogel
- Department of Prevention and Sports Medicine, University Hospital 'Rechts Der Isar', Technical University of Munich, Munich, Germany
| | - Julia Schoenfeld
- Department of Prevention and Sports Medicine, University Hospital 'Rechts Der Isar', Technical University of Munich, Munich, Germany
| | - Jan C Wüstenfeld
- Department of Sports Medicine, Charité-Universitätsmedizin Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Institute for Applied Training Science, Leipzig University, Leipzig, Germany
| | - Tom Kastner
- Department of Sports Medicine, Charité-Universitätsmedizin Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Institute for Applied Training Science, Leipzig University, Leipzig, Germany
| | - Friedrich Barsch
- Medical Faculty, Institute of Exercise and Occupational Medicine, University Freiburg, Freiburg, Germany
| | - Birgit Friedmann-Bette
- Medical Clinic VII, Department of Sports Medicine, University Hospital Heidelberg, Heidelberg, Germany
| | - Wilhelm Bloch
- Department of Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne, Cologne, Germany
| | - Tim Meyer
- Institute of Sports and Preventive Medicine, Saarland University, Saarbrücken, Germany
| | - Frank Mayer
- Center of Sports Medicine, Outpatient Clinic, University of Potsdam, Potsdam, Germany
| | - Bernd Wolfarth
- Department of Sports Medicine, Charité-Universitätsmedizin Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Institute for Applied Training Science, Leipzig University, Leipzig, Germany
| | - Kai Roecker
- Institute for Applied Health Promotion and Exercise Medicine (IfAG), Furtwangen University, Furtwangen, Germany
| | - Claus Reinsberger
- Department of Sports and Health, Institute of Sports Medicine, Paderborn University, Paderborn, Germany
| | - Bernhard Haller
- School of Medicine, Institute of AI and Informatics in Medicine, Technical University of Munich, Munich, Germany
| | - Andreas M Niess
- Department of Sports Medicine, Medical Clinic, Medical University Hospital Tuebingen, University Hospital of Tuebingen, Hoppe-Seyler Str. 6, 72076, Tuebingen, Germany
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Höppner J, Wollsching-Strobel M, Schumacher F, Windisch W, Berger M. Progressive pulmonary fibrosis in patients with connective tissue disease-associated interstitial lung disease: An explorative study. Arch Rheumatol 2024; 39:46-51. [PMID: 38774704 PMCID: PMC11104760 DOI: 10.46497/archrheumatol.2024.10105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 03/22/2023] [Indexed: 05/24/2024] Open
Abstract
Objectives The aim of this study was to identify differences and similarities between connective tissue disease (CTD) patients with and without progressive pulmonary fibrosis (PPF) by applying the new guidelines. Patients and methods Patient characteristics and disease courses from medical records of 50 CTD-associated Interstitial lung disease (ILD) patients (33 females, 17 males; mean age: 60.1±12.9 years) were longitudinally studied between January 2018 and May 2022. Respiratory involvement in CTD patients was described, and differences in CTD patients who developed PPF compared to those who did not were identified by the 2022 ATS (American Thoracic Society)/ERS (European Respiratory Society)/JRS (Japanese Respiratory Society)/ALAT (Asociación Latinoamericana de Thórax) Guidelines on Idiopathic Pulmonary Fibrosis and Progressive Pulmonary Fibrosis in Adults. Results In the majority (74%) of patients, CTD was diagnosed before ILD onset. Nonspecific interstitial pneumonia was the most common high resolution computer tomography pattern, followed by the usual interstitial pneumonia pattern. On pulmonary function test, 38% had a restrictive pattern at baseline. Patients without PPF tended to have worse lung function at baseline and increased macrophage count in bronchoalveolar lavage than patients with PPF. Conclusion In patients without PPF, disease progression may be missed, resulting in inadequate management. Interdisciplinary management of patients with CTD with the participation of pulmonologists and precise lung function diagnostics is recommended.
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Affiliation(s)
- Jakob Höppner
- (Department of Pneumology, Cologne Merheim Hospital, Kliniken der Stadt Köln gGmbh, Faculty of Health/School of Medicine, Witten/Herdecke University, Cologne, Germany
| | - Maximilian Wollsching-Strobel
- (Department of Pneumology, Cologne Merheim Hospital, Kliniken der Stadt Köln gGmbh, Faculty of Health/School of Medicine, Witten/Herdecke University, Cologne, Germany
| | - Falk Schumacher
- Department of Rheumatology, Krankenhaus Porz Am Rhein, Cologne, Germany
| | - Wolfram Windisch
- (Department of Pneumology, Cologne Merheim Hospital, Kliniken der Stadt Köln gGmbh, Faculty of Health/School of Medicine, Witten/Herdecke University, Cologne, Germany
| | - Melanie Berger
- (Department of Pneumology, Cologne Merheim Hospital, Kliniken der Stadt Köln gGmbh, Faculty of Health/School of Medicine, Witten/Herdecke University, Cologne, Germany
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Vagedes K, Kuderer S, Ehmann R, Kohl M, Wildhaber J, Jörres RA, Vagedes J. Effect of Buteyko breathing technique on clinical and functional parameters in adult patients with asthma: a randomized, controlled study. Eur J Med Res 2024; 29:42. [PMID: 38212823 PMCID: PMC10782792 DOI: 10.1186/s40001-023-01634-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 12/30/2023] [Indexed: 01/13/2024] Open
Abstract
BACKGROUND The established therapy of asthma might be supported by additional non-pharmaceutical measures, such as the Buteyko breathing technique (BBT); however, the available data are mixed. To clarify the effects of BBT in patients with asthma, we investigated whether it led to clinical improvements with correlation to functional parameters. METHODS Using a randomized, controlled design, we studied two groups (n = 30 each) of patients with asthma under either BBT or usual therapy (UT) w/o BBT over a period of 3 months. The primary outcome comprised the voluntary control pause (CP) after 3 months, secondary outcomes an additional breathhold parameter, forced expiratory volume in 1 s (FEV1), capnovolumetry, exhaled nitric oxide (FeNO), Asthma Control Questionnaire (ACQ) and Nijmegen Questionnaire (NQ), and the use of medication (β2-agonists; inhaled corticosteroids, ICS). RESULTS CP showed significant time-by-group interaction [F(1,58.09) = 28.70, p < 0.001] as well as main effects for study group [F(1,58.27) = 5.91, p = 0.018] and time [F(1,58.36) = 17.67, p < 0.001]. ACQ and NQ scores were significantly (p < 0.05 each) improved with BBT. This was associated with reductions in the use of β2-agonists and ICS (p < 0.05 each) by about 20% each. None of these effects occurred in the UT group. While FEV1 and the slopes of the capnovolumetric expiratory phases 2 and 3 did not significantly change, the capnovolumetric threshold volume at tidal breathing increased (p < 0.05) with BBT by about 10 mL or 10%, compared to baseline, suggesting a larger volume of the central airways. No significant changes were seen for FeNO. CONCLUSIONS BBT was clinically effective, as indicated by the fact that the improvement in symptom scores and the small increase in bronchial volume occurred despite the significant reduction of respiratory pharmacotherapy. As the self-controlled Buteyko breathing therapy was well-accepted by the participants, it could be considered as supporting tool in asthma therapy being worth of wider attention in clinical practice. Trial registration Retrospectively registered on 10 March 2017 at ClinicalTrials.gov (NCT03098849).
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Affiliation(s)
- Katrin Vagedes
- ARCIM Institute (Academic Research in Complementary and Integrative Medicine), Filderstadt, Germany
| | - Silja Kuderer
- ARCIM Institute (Academic Research in Complementary and Integrative Medicine), Filderstadt, Germany
| | - Rainer Ehmann
- Asthma Center, Outpatient Pulmonology, Stuttgart, Germany
| | - Matthias Kohl
- Institute of Precision Medicine, University Furtwangen, Villingen-Schwenningen, Germany
| | | | - Rudolf A Jörres
- Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, LMU Hospital, LMU Munich, Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Jan Vagedes
- ARCIM Institute (Academic Research in Complementary and Integrative Medicine), Filderstadt, Germany.
- Department of Neonatology, University Hospital Tübingen, Tübingen, Germany.
- Department of Pediatrics, Filderklinik, Filderstadt, Germany.
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Kasteler R, Otth M, Halbeisen FS, Mader L, Singer F, Rössler J, von der Weid NX, Ansari M, Kuehni CE. Longitudinal assessment of lung function in Swiss childhood cancer survivors-A multicenter cohort study. Pediatr Pulmonol 2024; 59:169-180. [PMID: 37905693 DOI: 10.1002/ppul.26738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 09/08/2023] [Accepted: 10/17/2023] [Indexed: 11/02/2023]
Abstract
OBJECTIVE Childhood cancer survivors are at risk for pulmonary morbidity due to exposure to lung-toxic treatments, including specific chemotherapeutics, radiotherapy, and surgery. Longitudinal data on lung function and its change over time are scarce. We investigated lung function trajectories in survivors over time and the association with lung-toxic treatments. METHODS This retrospective, multicenter cohort study included Swiss survivors diagnosed between 1990 and 2013 and exposed to lung-toxic chemotherapeutics or thoracic radiotherapy. Pulmonary function tests (PFTs), including forced expiration volume in the first second (FEV1), forced vital capacity (FVC), FEV1/FVC, total lung capacity, and diffusion capacity of the lung for carbon monoxide, were obtained from hospital charts. We calculated z-scores and percentage predicted, described lung function over time, and determined risk factors for change in FEV1 and FVC using multivariable linear regression. RESULTS We included 790 PFTs from 183 survivors, with a median age of 12 years at diagnosis and 5.5 years of follow-up. Most common diagnosis was lymphoma (55%). Half (49%) of survivors had at least one abnormal pulmonary function parameter, mainly restrictive (22%). Trajectories of FEV1 and FVC started at z-scores of -1.5 at diagnosis and remained low throughout follow-up. Survivors treated with thoracic surgery started particularly low, with an FEV1 of -1.08 z-scores (-2.02 to -0.15) and an FVC of -1.42 z-scores (-2.27 to -0.57) compared to those without surgery. CONCLUSION Reduced pulmonary function was frequent but mainly of mild to moderate severity. Nevertheless, more research and long-term surveillance of this vulnerable population is needed.
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Affiliation(s)
- Rahel Kasteler
- Childhood Cancer Research Group, Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
- Pediatric Hematology-Oncology Center, Children's Hospital of Eastern Switzerland, St Gallen, Switzerland
- Department of Oncology, Hematology, Immunology, Stem Cell Transplantation and Somatic Gene Therapy, University Children's Hospital Zurich-Eleonore Foundation, Zurich, Switzerland
| | - Maria Otth
- Childhood Cancer Research Group, Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
- Pediatric Hematology-Oncology Center, Children's Hospital of Eastern Switzerland, St Gallen, Switzerland
- Department of Oncology, Hematology, Immunology, Stem Cell Transplantation and Somatic Gene Therapy, University Children's Hospital Zurich-Eleonore Foundation, Zurich, Switzerland
| | - Florian S Halbeisen
- Surgical Outcome Research Center Basel, University Hospital Basel, Basel, Switzerland
| | - Luzius Mader
- Childhood Cancer Research Group, Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
| | - Florian Singer
- Department of Respiratory Medicine, University Children's Hospital Zurich and Childhood Research Centre, Zurich, Switzerland
- Division of Paediatric Pulmonology and Allergology, Department of Paediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria
- Division of Respiratory Medicine, Department of Paediatrics, Inselspital, University Hospital, University of Bern, Bern, Switzerland
| | - Jochen Rössler
- Division of Paediatric Oncology-Haematology, Department of Paediatrics, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Nicolas X von der Weid
- Department of Paediatric Oncology-Haematology, University Children's Hospital Basel, University of Basel, Basel, Switzerland
| | - Marc Ansari
- Division of Paediatric Oncology and Haematology, Department of Women, Child and Adolescent, University Geneva Hospitals, Geneva, Switzerland
- Department of Paediatrics, Gynaecology and Obstetrics, Cansearch Research Platform for Paediatric Oncology and Haematology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Claudia E Kuehni
- Childhood Cancer Research Group, Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
- Division of Respiratory Medicine, Department of Paediatrics, Inselspital, University Hospital, University of Bern, Bern, Switzerland
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Kraft AM, Velasco Garrido M, Herold R, Harth V, Preisser AM. Physical workload and cardiopulmonary parameters in relation to individual capacity of bulk waste workers - a cross-sectional field-study. J Occup Med Toxicol 2023; 18:29. [PMID: 38102679 PMCID: PMC10724959 DOI: 10.1186/s12995-023-00389-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 09/07/2023] [Indexed: 12/17/2023] Open
Abstract
PURPOSE Waste collection is considered particularly heavy work, although no previous study has yet investigated the strain of bulk waste collection. The aim of this study is to determine the workload of bulk waste workers in practice. METHOD We conducted a cross-sectional field-study. Fourteen male volunteers from the bulk waste collection of the municipal sanitation department in Hamburg, Germany, were included. Performance was determined by cardiopulmonary exercise testing under laboratory conditions. During the shift, each worker was accompanied by a researcher, and heart rate (HR) was recorded under field conditions using an HR watch with a belt system. We examined mean HR, relative heart rate (RHR), relative aerobic strain (RAS), calculated oxygen uptake ([Formula: see text]) and individual ventilatory threshold 1 (VT1) as parameters of workload during their daily work. RESULTS During the shift, HR was scaled: 102 bpm (SD 10.2), RHR: 36.9%, [Formula: see text]: 1267 ml/min (SD 161), RAS: 49.4% (SD 9.3), and [Formula: see text] in relation to VT1: 75% (SD 18.5). There was no significant difference between oxygen consumption during the main task of lifting and carrying bulky waste and the individual [Formula: see text] at VT1. CONCLUSION Although the burden of the main task of lifting and carrying bulky waste is very high (at VT1 for more than 3 h), interruptions from other tasks or formal breaks spread the burden over the entire shift. The total workload exceeded most recommendations in the literature across the different work periods. However, the total burden remains below VT1, the only parameter that takes individual endurance performance into account. We recommend again VT1 as an individual upper limit for prolonged occupational work.
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Affiliation(s)
- Alexander Michael Kraft
- Institute for Occupational and Maritime Medicine, University Medical Center Hamburg-Eppendorf, Seewartenstrasse 10, 20459, Hamburg, Germany
| | - Marcial Velasco Garrido
- Institute for Occupational and Maritime Medicine, University Medical Center Hamburg-Eppendorf, Seewartenstrasse 10, 20459, Hamburg, Germany
| | - Robert Herold
- Institute for Occupational and Maritime Medicine, University Medical Center Hamburg-Eppendorf, Seewartenstrasse 10, 20459, Hamburg, Germany
| | - Volker Harth
- Institute for Occupational and Maritime Medicine, University Medical Center Hamburg-Eppendorf, Seewartenstrasse 10, 20459, Hamburg, Germany
| | - Alexandra Marita Preisser
- Institute for Occupational and Maritime Medicine, University Medical Center Hamburg-Eppendorf, Seewartenstrasse 10, 20459, Hamburg, Germany.
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Velasco Garrido M, Rentel N, Herold R, Harth V, Preisser AM. Does working in an extremely cold environment affects lung function?: 10 years follow-up. Int Arch Occup Environ Health 2023; 96:1039-1048. [PMID: 37269340 PMCID: PMC10361853 DOI: 10.1007/s00420-023-01988-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 05/25/2023] [Indexed: 06/05/2023]
Abstract
OBJECTIVE The aim of this study is to investigate whether there is an association between brief but repeated exposures to extremely cold temperatures over many years and pulmonary function. METHODS We performed a retrospective analysis of the data collected over 10 years in the context of the extended medical examinations of storeworkers exposed to extremely cold temperatures. We considered forced vital capacity (FVC), forced expiratory volume in one second (FEV1), Tiffeneau-Pinelli index (FEV1/FVC), CO diffusion capacity (DL,CO) and Krogh-factor (CO diffusion capacity relative to recorded alveolar volume, DL,CO/VA) reported as %-predicted. We analysed trends in outcome parameters with linear mixed models. RESULTS 46 male workers participated in at least two extended medical examinations between 2007 and 2017. Overall 398 measure points were available. All lung function parameters had values above the lower limit of normality at the first examination. In the multivariate model including smoking status and monthly intensity of cold exposure (≤ 16 h/month vs. > 16 h/month) FEV1%-predicted and FVC %-predicted had a statistically significant positive slope (FEV1, 0.32% 95% CI 0.16% to 0.49% p < 0.001; FVC 0.43% 95% CI 0.28% to 0.57% p < 0.001). The other lung function parameters (FEV1/FVC %-predicted, DL,CO %-predicted, DL,CO/VA %-predicted) showed no statistically significant change over time. CONCLUSIONS Long term intermittent occupational exposure to extreme cold temperatures (-55 °C) does not appear to cause irreversible deleterious changes in lung function in healthy workers, thus the development of obstructive or restrictive lung diseases is not expected.
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Affiliation(s)
- Marcial Velasco Garrido
- Institute for Occupational and Maritime Medicine (ZfAM), University Medical Center Hamburg-Eppendorf, Seewartenstr. 10, 20459, Hamburg, Germany.
| | - Nadine Rentel
- Institute for Occupational and Maritime Medicine (ZfAM), University Medical Center Hamburg-Eppendorf, Seewartenstr. 10, 20459, Hamburg, Germany
| | - Robert Herold
- Institute for Occupational and Maritime Medicine (ZfAM), University Medical Center Hamburg-Eppendorf, Seewartenstr. 10, 20459, Hamburg, Germany
| | - Volker Harth
- Institute for Occupational and Maritime Medicine (ZfAM), University Medical Center Hamburg-Eppendorf, Seewartenstr. 10, 20459, Hamburg, Germany
| | - Alexandra M Preisser
- Institute for Occupational and Maritime Medicine (ZfAM), University Medical Center Hamburg-Eppendorf, Seewartenstr. 10, 20459, Hamburg, Germany
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Laufer B, Docherty PD, Murray R, Krueger-Ziolek S, Jalal NA, Hoeflinger F, Rupitsch SJ, Reindl L, Moeller K. Sensor Selection for Tidal Volume Determination via Linear Regression-Impact of Lasso versus Ridge Regression. SENSORS (BASEL, SWITZERLAND) 2023; 23:7407. [PMID: 37687863 PMCID: PMC10490437 DOI: 10.3390/s23177407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 08/18/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023]
Abstract
The measurement of respiratory volume based on upper body movements by means of a smart shirt is increasingly requested in medical applications. This research used upper body surface motions obtained by a motion capture system, and two regression methods to determine the optimal selection and placement of sensors on a smart shirt to recover respiratory parameters from benchmark spirometry values. The results of the two regression methods (Ridge regression and the least absolute shrinkage and selection operator (Lasso)) were compared. This work shows that the Lasso method offers advantages compared to the Ridge regression, as it provides sparse solutions and is more robust to outliers. However, both methods can be used in this application since they lead to a similar sensor subset with lower computational demand (from exponential effort for full exhaustive search down to the order of O (n2)). A smart shirt for respiratory volume estimation could replace spirometry in some cases and would allow for a more convenient measurement of respiratory parameters in home care or hospital settings.
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Affiliation(s)
- Bernhard Laufer
- Institute of Technical Medicine (ITeM), Furtwangen University, 78054 Villingen-Schwenningen, Germany
| | - Paul D. Docherty
- Institute of Technical Medicine (ITeM), Furtwangen University, 78054 Villingen-Schwenningen, Germany
- Department of Mechanical Engineering, University of Canterbury, Christchurch 8041, New Zealand
| | - Rua Murray
- School of Mathematics and Statistics, University of Canterbury, Christchurch 8041, New Zealand
| | - Sabine Krueger-Ziolek
- Institute of Technical Medicine (ITeM), Furtwangen University, 78054 Villingen-Schwenningen, Germany
| | - Nour Aldeen Jalal
- Institute of Technical Medicine (ITeM), Furtwangen University, 78054 Villingen-Schwenningen, Germany
- Innovation Center Computer Assisted Surgery (ICCAS), University of Leipzig, 04109 Leipzig, Germany
| | - Fabian Hoeflinger
- Department of Microsystems Engineering, University of Freiburg, 79085 Freiburg, Germany
| | - Stefan J. Rupitsch
- Department of Microsystems Engineering, University of Freiburg, 79085 Freiburg, Germany
| | - Leonhard Reindl
- Department of Microsystems Engineering, University of Freiburg, 79085 Freiburg, Germany
| | - Knut Moeller
- Institute of Technical Medicine (ITeM), Furtwangen University, 78054 Villingen-Schwenningen, Germany
- Department of Mechanical Engineering, University of Canterbury, Christchurch 8041, New Zealand
- Department of Microsystems Engineering, University of Freiburg, 79085 Freiburg, Germany
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9
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Lommatzsch M, Criée CP, de Jong CCM, Gappa M, Geßner C, Gerstlauer M, Hämäläinen N, Haidl P, Hamelmann E, Horak F, Idzko M, Ignatov A, Koczulla AR, Korn S, Köhler M, Lex C, Meister J, Milger-Kneidinger K, Nowak D, Pfaar O, Pohl W, Preisser AM, Rabe KF, Riedler J, Schmidt O, Schreiber J, Schuster A, Schuhmann M, Spindler T, Taube C, Christian Virchow J, Vogelberg C, Vogelmeier CF, Wantke F, Windisch W, Worth H, Zacharasiewicz A, Buhl R. [Diagnosis and treatment of asthma: a guideline for respiratory specialists 2023 - published by the German Respiratory Society (DGP) e. V.]. Pneumologie 2023; 77:461-543. [PMID: 37406667 DOI: 10.1055/a-2070-2135] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/07/2023]
Abstract
The management of asthma has fundamentally changed during the past decades. The present guideline for the diagnosis and treatment of asthma was developed for respiratory specialists who need detailed and evidence-based information on the new diagnostic and therapeutic options in asthma. The guideline shows the new role of biomarkers, especially blood eosinophils and fractional exhaled NO (FeNO), in diagnostic algorithms of asthma. Of note, this guideline is the first worldwide to announce symptom prevention and asthma remission as the ultimate goals of asthma treatment, which can be achieved by using individually tailored, disease-modifying anti-asthmatic drugs such as inhaled steroids, allergen immunotherapy or biologics. In addition, the central role of the treatment of comorbidities is emphasized. Finally, the document addresses several challenges in asthma management, including asthma treatment during pregnancy, treatment of severe asthma or the diagnosis and treatment of work-related asthma.
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Affiliation(s)
- Marek Lommatzsch
- Zentrum für Innere Medizin, Abt. für Pneumologie, Universitätsmedizin Rostock
| | | | - Carmen C M de Jong
- Abteilung für pädiatrische Pneumologie, Abteilung für Pädiatrie, Inselspital, Universitätsspital Bern
| | - Monika Gappa
- Klinik für Kinder und Jugendliche, Evangelisches Krankenhaus Düsseldorf
| | | | | | | | - Peter Haidl
- Abteilung für Pneumologie II, Fachkrankenhaus Kloster Grafschaft GmbH, Schmallenberg
| | - Eckard Hamelmann
- Kinder- und Jugendmedizin, Evangelisches Klinikum Bethel, Bielefeld
| | | | - Marco Idzko
- Abteilung für Pulmologie, Universitätsklinik für Innere Medizin II, Medizinische Universität Wien
| | - Atanas Ignatov
- Universitätsklinik für Frauenheilkunde, Geburtshilfe und Reproduktionsmedizin, Universitätsklinikum Magdeburg
| | - Andreas Rembert Koczulla
- Schön-Klinik Berchtesgadener Land, Berchtesgaden
- Klinik für Innere Medizin Schwerpunkt Pneumologie, Universitätsklinikum Marburg
| | - Stephanie Korn
- Pneumologie und Beatmungsmedizin, Thoraxklinik, Universitätsklinikum Heidelberg
| | - Michael Köhler
- Deutsche Patientenliga Atemwegserkrankungen, Gau-Bickelheim
| | - Christiane Lex
- Klinik für Kinder- und Jugendmedizin, Universitätsmedizin Göttingen
| | - Jochen Meister
- Klinik für Kinder- und Jugendmedizin, Helios Klinikum Aue
| | | | - Dennis Nowak
- Institut und Poliklinik für Arbeits-, Sozial- und Umweltmedizin, LMU München
| | - Oliver Pfaar
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Hals-Chirurgie, Sektion für Rhinologie und Allergie, Universitätsklinikum Marburg, Philipps-Universität Marburg, Marburg
| | - Wolfgang Pohl
- Gesundheitszentrum Althietzing, Karl Landsteiner Institut für klinische und experimentelle Pneumologie, Wien
| | - Alexandra M Preisser
- Zentralinstitut für Arbeitsmedizin und Maritime Medizin, Universitätsklinikum Hamburg-Eppendorf, Hamburg
| | - Klaus F Rabe
- Pneumologie, LungenClinic Großhansdorf, UKSH Kiel
| | - Josef Riedler
- Abteilung für Kinder- und Jugendmedizin, Kardinal Schwarzenberg Klinikum Schwarzach
| | | | - Jens Schreiber
- Universitätsklinik für Pneumologie, Universitätsklinikum Magdeburg
| | - Antje Schuster
- Klinik für Allgemeine Pädiatrie, Neonatologie und Kinderkardiologie, Universitätsklinikum Düsseldorf
| | | | | | - Christian Taube
- Klinik für Pneumologie, Universitätsmedizin Essen-Ruhrlandklinik
| | | | - Christian Vogelberg
- Klinik und Poliklinik für Kinder- und Jugendmedizin, Universitätsklinikum Carl Gustav Carus, Dresden
| | | | | | - Wolfram Windisch
- Lungenklinik Köln-Merheim, Lehrstuhl für Pneumologie, Universität Witten/Herdecke
| | - Heinrich Worth
- Pneumologische & Kardiologische Gemeinschaftspraxis, Fürth
| | | | - Roland Buhl
- Klinik für Pneumologie, Zentrum für Thoraxerkrankungen, Universitätsmedizin Mainz
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10
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Junge M, Krüger M, Wahner-Roedler DL, Bauer BA, Dörr M, Bahls M, Chenot JF, Biffar R, Schmidt CO. The Preventiometer - reliability of a cardiovascular multi-device measurement platform and its measurement agreement with a cohort study. BMC Med Res Methodol 2023; 23:103. [PMID: 37095457 PMCID: PMC10127382 DOI: 10.1186/s12874-023-01911-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 04/03/2023] [Indexed: 04/26/2023] Open
Abstract
BACKGROUND Multimedia multi-device measurement platforms may make the assessment of prevention-related medical variables with a focus on cardiovascular outcomes more attractive and time-efficient. The aim of the studies was to evaluate the reliability (Study 1) and the measurement agreement with a cohort study (Study 2) of selected measures of such a device, the Preventiometer. METHODS In Study 1 (N = 75), we conducted repeated measurements in two Preventiometers for four examinations (blood pressure measurement, pulse oximetry, body fat measurement, and spirometry) to analyze their agreement and derive (retest-)reliability estimates. In Study 2 (N = 150), we compared somatometry, blood pressure, pulse oximetry, body fat, and spirometry measurements in the Preventiometer with corresponding measurements used in the population-based Study of Health in Pomerania (SHIP) to evaluate measurement agreement. RESULTS Intraclass correlations coefficients (ICCs) ranged from .84 to .99 for all examinations in Study 1. Whereas bias was not an issue for most examinations in Study 2, limits of agreement for most examinations were very large compared to results of similar method comparison studies. CONCLUSION We observed a high retest-reliability of the assessed clinical examinations in the Preventiometer. Some disagreements between Preventiometer and SHIP examinations can be attributed to procedural differences in the examinations. Methodological and technical improvements are recommended before using the Preventiometer in population-based research.
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Affiliation(s)
- Martin Junge
- Institute for Community Medicine, University of Greifswald, Greifswald, Germany
- Present Address: nxt statista GmbH & Co. KG, Hamburg, Germany
| | - Markus Krüger
- Institute for Community Medicine, University of Greifswald, Greifswald, Germany.
- Present Address: Unit of Prosthodontics, Gerodontology, and Biomaterials, Centre of Oral Health, University of Greifswald, Greifswald, Germany.
| | | | - Brent A Bauer
- Division of General Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Marcus Dörr
- Department of Internal Medicine B (Cardiology), University Medicine, Greifswald, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Greifswald, University of Greifswald, Greifswald, Germany
| | - Martin Bahls
- Department of Internal Medicine B (Cardiology), University Medicine, Greifswald, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Greifswald, University of Greifswald, Greifswald, Germany
| | - Jean-François Chenot
- Department of General Practice, Institute for Community Medicine, University of Greifswald, Greifswald, Germany
| | - Reiner Biffar
- Unit of Prosthodontics, Gerodontology, and Biomaterials, Centre of Oral Health, University of Greifswald, Greifswald, Germany
| | - Carsten O Schmidt
- Institute for Community Medicine, University of Greifswald, Greifswald, Germany
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11
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Kahnert K, Lempert LM, Behr J, Elsner L, Bolt T, Tufman A, Kauffmann-Guerrero D. Hyperinflation and reduced diffusing capacity predict prognosis in SCLC: value of extended pre-therapeutic lung function testing. Ther Adv Respir Dis 2023; 17:17534666231199670. [PMID: 37997884 PMCID: PMC10676075 DOI: 10.1177/17534666231199670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 08/03/2023] [Indexed: 11/25/2023] Open
Abstract
BACKGROUND Small cell lung cancer (SCLC) is characterized by aggressive growth and poor prognosis. Although SCLC affects nearly exclusively heavy smokers and leads to frequent respiratory symptoms, the impact of pre-therapeutic lung function testing in SCLC is sparely investigated until now. Therefore, we sought to examine whether we could find prognostic markers in pre-therapeutic lung function testing of SCLC patients. PATIENTS AND METHODS We retrospectively analysed a cohort of 205 patients with the diagnosis of SCLC between 2010 and 2018. Pre-therapeutic values of spirometry, body plethysmography and measurement of diffusing capacity was extracted from patients' charts. Comparisons between groups were performed using the Mann-Whitney U-test or by chi-square tests as appropriate. Kaplan-Meier analyses and COX-regression models were performed to correlate lung function parameters with patients' outcome. RESULTS Airway obstruction itself, or the diagnosis chronic obstructive pulmonary disease (COPD) based on GOLD definitions did not correlate with survival in SCLC patients. Hyperinflation measured by increased residual volume and residual volume to total lung capacity ratio (log-rank p < 0.001) and reduced diffusing capacity (log-rank p = 0.007) were associated with reduced survival. Furthermore, patients with hyperinflation as well as impairments in gas exchange representing an emphysematic phenotype had the worst outcome (log-rank p < 0.001). CONCLUSION We recommend including body plethysmography and measurement of diffusing capacity in the pre-therapeutic assessment of SCLC patients. Our findings suggest that reduction of hyperinflation may lead to better outcome in SCLC patients. Thus, in addition to effective tumour therapy, adequate therapy of the comorbidity of COPD should also be provided. In particular, measures to reduce hyperinflation by means of dual bronchodilation as well as respiratory physiotherapy should be further assessed in this setting.
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Affiliation(s)
- Kathrin Kahnert
- Department of Medicine V, University Hospital, LMU Munich, Munich, Germany
- Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Munich, Germany
| | | | - Jürgen Behr
- Department of Medicine V, University Hospital, LMU Munich, Munich, Germany
- Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Laura Elsner
- Department of Medicine V, University Hospital, LMU Munich, Munich, Germany
- Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Toki Bolt
- Department of Medicine V, University Hospital, LMU Munich, Munich, Germany
- Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Amanda Tufman
- Department of Medicine V, University Hospital, LMU Munich, Munich, Germany
- Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Diego Kauffmann-Guerrero
- Department of Internal Medicine V (Pneumology/Thoracic Oncology), University Hospital, LMU Munich, Ziemssenstraße 1, Munich 80336, Germany
- Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Munich, Germany
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12
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Prevalence of Spirometry Testing among Patients with Asthma and COPD in German General Practices. Healthcare (Basel) 2022; 10:healthcare10122570. [PMID: 36554093 PMCID: PMC9778268 DOI: 10.3390/healthcare10122570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/10/2022] [Accepted: 12/16/2022] [Indexed: 12/23/2022] Open
Abstract
The goal of this study was to estimate the prevalence of spirometry testing among patients with asthma and chronic obstructive pulmonary disease (COPD) in general practices (GPs) in Germany. This retrospective cross-sectional study was based on data from the Disease Analyzer database (IQVIA), This retrospective cross-sectional study included all patients with at least one confirmed asthma or COPD diagnosis in one of those 50 general practices in Germany between January 2020, and January 2021, as well as at least one visit to these general practices between January 2021, and January 2022. The main outcomes of the study aimed to ascertain the proportion of spirometry testing among asthma and COPD patients between January 2021, and January 2022, overall, and separately, in men, women, six age groups (≤30, 31−40, 41−50, 51−60, 61, 70, >70), and patients who received at least one prescription of anti-asthma or anti-COPD drugs. This study included 8835 patients with asthma only, 5597 with COPD only, and 1897 with both asthma and COPD diagnoses. Of these, 27.2% of COPD patients, 7% of asthma patients, and 54.7% of asthma + COPD patients, received spirometry testing during the study period. Among COPD and asthma + COPD patients, the prevalence of spirometry testing was much higher in women than in men (COPD: 31.6% vs. 23.2%; asthma + COPD: 59.6% vs. 46.3%) and much higher in treated than in non-treated patients (COPD: 31.7% vs. 15.0%; asthma + COPD: 57.5% vs. 27.8%). The prevalence of spirometry testing was relatively low among COPD and asthma patients followed in GP practices, but usually higher in female patients, treated patients, and patients suffering from both asthma and COPD.
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13
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Steinbeis F, Knape P, Mittermaier M, Helbig ET, Tober-Lau P, Thibeault C, Lippert LJ, Xiang W, Müller-Plathe M, Steinbrecher S, Meyer HJ, Ring RM, Ruwwe-Glösenkamp C, Alius F, Li Y, Müller-Redetzky H, Uhrig A, Lingscheid T, Grund D, Temmesfeld-Wollbrück B, Suttorp N, Sander LE, Kurth F, Witzenrath M, Zoller T. Functional limitations 12 months after SARS-CoV-2 infection correlate with initial disease severity: An observational study of cardiopulmonary exercise capacity testing in COVID-19 convalescents. Respir Med 2022; 202:106968. [PMID: 36081267 PMCID: PMC9420203 DOI: 10.1016/j.rmed.2022.106968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 08/18/2022] [Accepted: 08/22/2022] [Indexed: 11/26/2022]
Abstract
Background Cardiopulmonary Exercise Testing (CPET) provides a comprehensive assessment of pulmonary, cardiovascular and musculosceletal function. Reduced CPET performance could be an indicator for chronic morbidity after COVID-19. Methods Patients ≥18 years with confirmed PCR positive SARS-CoV-2 infection were offered to participate in a prospective observational study of clinical course and outcomes of COVID-19. 54 patients completed CPET, questionnaires on respiratory quality of life and performed pulmonary function tests 12 months after SARS-CoV-2 infection. Results At 12 months after SARS-CoV-2 infection, 46.3% of participants had a peak performance and 33.3% a peak oxygen uptake of <80% of the predicted values, respectively. Further impairments were observed in diffusion capacity and ventilatory efficiency. Functional limitations were particularly pronounced in patients after invasive mechanical ventilation and extracorporeal membrane oxygenation treatment. Ventilatory capacity was reduced <80% of predicted values in 55.6% of participants, independent from initial clinical severity. Patient reported dyspnea and respiratory quality of life after COVID-19 correlated with CPET performance and parameters of gas exchange. Risk factors for reduced CPET performance 12 months after COVID-19 were prior intensive care treatment (OR 5.58, p = 0.004), SGRQ outcome >25 points (OR 3.48, p = 0.03) and reduced DLCO (OR 3.01, p = 0.054). Conclusions Functional limitations causing chronic morbidity in COVID-19 survivors persist over 12 months after SARS-CoV-2 infection. These limitations were particularly seen in parameters of overall performance and gas exchange resulting from muscular deconditioning and lung parenchymal changes. Patient reported reduced respiratory quality of life was a risk factor for adverse CPET performance.
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14
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Ströker L, Peldschus K, Herold R, Harth V, Preisser AM. Restrictions of VC and DLCO in relation to asbestos-related computed tomographic findings quantified by ICOERD-based parameters. BMC Pulm Med 2022; 22:236. [PMID: 35725440 PMCID: PMC9208103 DOI: 10.1186/s12890-022-02022-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 06/09/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Even almost 30 years after the ban on the use of asbestos in Germany, the effects of asbestos are still highly relevant in everyday clinical practice in occupational medicine. The aim of this study was to further investigate the significance of essential parameters of both pulmonary function diagnostics and imaging techniques (low-dose HR-TCT) for the prevention and early detection of asbestos-related morphological and functional lung changes. METHODS Data from spirometry, body plethysmography and diffusion capacity, as well as CT images of the thorax, were retrospectively studied from 72 patients examined between 2017 and 2019 at the Institute for Occupational and Maritime Medicine (ZfAM), Hamburg, Germany. The subjects were divided into four subgroups according to the presence of comorbidities (concomitant cardiac diseases, obstructive ventilatory disorder, pulmonary function pattern consistent with emphysema, and no other pulmonary or cardiac diseases). These subgroups were analysed in addition to the overall collective. The CT images were evaluated according to the International Classification of Occupational and Environmental Respiratory Diseases (ICOERD) with radiological expertise. In addition, some asbestos-related parameters were newly quantified, and corresponding scores were defined based on ICOERD. Statistical analysis included the use of correlations and fourfold tables with calculation of Spearman's rho (ρ), Cohen's κ, and accuracy. RESULTS Vital capacity (VC) is slightly reduced in the total collective compared to the normal population (mean 92% of predicted value), while diffusion capacity for CO (DLCO) shows predominantly pathological values, mean 70% of the respective predicted value. The CO transfer coefficient (DLCO/VA), which refers to alveolar volume (VA), also shows slightly decreased values (mean 87% pred.). Seventy-nine percent of patients (n = 57) had signs of pulmonary fibrosis on CT scans, and pleural plaques appeared in 58 of 72 patients (81%). Of the newly quantified additional parameters, particularly frequently described findings are subpleural curvilinear lines (SC, n = 39) and parenchymal bands (PB, n = 29). VC correlates well with the expression of pleural plaques (ρ = - 0.273, P < 0.05), and DLCO measures show a better correlation with fibrosis score (ρ = - 0.315, P < 0.01). A third, newly developed score, which includes the extent of pleural plaques and additional subpleural parameters instead of fibrosis parameters, shows significant correlations for both VC and DLCO (ρ = - 0.283, - 0.274, resp.; both P < 0.05). DISCUSSION The importance of spirometry (VC) and diffusion capacity measurement (DLCO) as essential diagnostic procedures for the early detection of asbestos-related changes ‒ also including patients with relevant concomitant cardiac or pulmonary diseases ‒ was confirmed. Significant and better correlations between lung function changes (VC and DLCO) and abnormal CT findings are seen when parenchymal bands (PB), subpleural curvilinear lines (SC), and rounded atelectasis (RA) are quantitatively included into the evaluation, in addition to assessing the extent of pleural plaques alone. Therefore, when assessing CT images according to ICOERD, these parameters should also be quantified.
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Affiliation(s)
- Lennart Ströker
- Institute for Occupational and Maritime Medicine (ZfAM), University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Kersten Peldschus
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Robert Herold
- Institute for Occupational and Maritime Medicine (ZfAM), University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Volker Harth
- Institute for Occupational and Maritime Medicine (ZfAM), University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Alexandra Marita Preisser
- Institute for Occupational and Maritime Medicine (ZfAM), University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany.
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15
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Kopp MV. 11/m mit akuter Atemnot, Husten und Giemen. Monatsschr Kinderheilkd 2022. [DOI: 10.1007/s00112-022-01458-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Affection of Respiratory Muscles in ALS and SMA. J Clin Med 2022; 11:jcm11051163. [PMID: 35268254 PMCID: PMC8910994 DOI: 10.3390/jcm11051163] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/18/2022] [Accepted: 02/19/2022] [Indexed: 12/10/2022] Open
Abstract
Respiratory dysfunction is a common cause of morbidity and mortality in motor neuron disease (MND). However, classical volitional measures of respiratory function in these patients are impeded by, e.g., bulbar paralysis or progressive disability. Diaphragm ultrasound imaging might be a valuable tool for assessing respiratory impairment, albeit different ultrasound measures have not been systematically investigated in adult MND patients and, in particular, have not yet been comparatively applied in adult patients with amyotrophic lateral sclerosis (ALS) and spinal muscular atrophy (SMA). We hypothesized that in contrast to ALS patients, adult SMA patients show a relative sparing of diaphragm function. We retrospectively analyzed diaphragm ultrasound imaging data of 40 patients with ALS and 23 patients with SMA in comparison to a multitude of established parameters of respiratory function. Indeed, ALS patients showed more severe diaphragm dysfunction than adult SMA patients, however, diaphragm dysfunction was also common in adult SMA patients. Notably, dynamic measures of diaphragm function rather than thickness measures were impaired in ALS compared to SMA. Thus, diaphragm ultrasound imaging might be a useful tool to evaluate respiratory dysfunction in adult MND patients. Future larger and prospective studies are needed to validate our initial findings.
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17
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Otth M, Yammine S, Usemann J, Latzin P, Mader L, Spycher B, Güngör T, Scheinemann K, Kuehni CE. Longitudinal lung function in childhood cancer survivors after hematopoietic stem cell transplantation. Bone Marrow Transplant 2022; 57:207-214. [PMID: 34750563 PMCID: PMC8821009 DOI: 10.1038/s41409-021-01509-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 10/13/2021] [Accepted: 10/15/2021] [Indexed: 11/08/2022]
Abstract
Longitudinal data on pulmonary function after pediatric allogeneic or autologous hematopoietic stem cell transplantation (HSCT) are rare. We examined pulmonary function and associated risk factors in 5-year childhood cancer survivors (CCSs) longitudinally. We included 74 CCSs diagnosed between 1976 and 2010, treated with HSCT, and with at least two pulmonary function tests performed during follow-up. Median follow-up was 9 years (range 6-13). We described pulmonary function as z-scores for lung volumes (forced vital capacity [FVC], residual volume [RV], total lung capacity [TLC]), flows (forced expiratory volume in 1 s [FEV1], maximal mid-expiratory flow [MMEF]), and diffusion capacity for carbon monoxide (DLCO) and assessed associations with potential risk factors using multivariable regression analysis. The median z-scores for FEV1, FVC, and TLC were below the expected throughout the follow-up period. This was not the case for RV, MMEF and DLCO. Female gender, radiotherapy to the chest, and relapse were associated with lower z-scores of FEV1, FVC, MMEF, RV or DLCO. Childhood cancer survivors after HSCT are at risk of pulmonary dysfunction. The complex and multifactorial etiology of pulmonary dysfunction emphasizes the need for longitudinal prospective studies to better characterize the course and causes of pulmonary function impairment in CCSs.
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Affiliation(s)
- Maria Otth
- Childhood Cancer Research Group, Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland
- Division of Oncology- Hematology, Department of Pediatrics, Kantonsspital Aarau, Aarau, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
- Department of Oncology, Hematology, Immunology, Stem Cell Transplantation and Somatic Gene Therapy, University Children's Hospital Zurich - Eleonore Foundation, Zurich, Switzerland
| | - Sophie Yammine
- Division of Respiratory Medicine, Department of Pediatrics, Inselspital, University Hospital, University of Bern, Bern, Switzerland
| | - Jakob Usemann
- Division of Respiratory Medicine, Department of Pediatrics, University Children's Hospital Zurich-Eleonore Foundation, Zurich, Switzerland
- University Children's Hospital Basel (UKBB), Basel, Switzerland
| | - Philipp Latzin
- Division of Respiratory Medicine, Department of Pediatrics, Inselspital, University Hospital, University of Bern, Bern, Switzerland
| | - Luzius Mader
- Childhood Cancer Research Group, Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland
| | - Ben Spycher
- Childhood Cancer Research Group, Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland
| | - Tayfun Güngör
- Department of Oncology, Hematology, Immunology, Stem Cell Transplantation and Somatic Gene Therapy, University Children's Hospital Zurich - Eleonore Foundation, Zurich, Switzerland
| | - Katrin Scheinemann
- Division of Oncology- Hematology, Department of Pediatrics, Kantonsspital Aarau, Aarau, Switzerland
- University of Basel, Basel, Switzerland
- Department of Pediatrics, McMaster University Hamilton, Hamilton, ON, Canada
| | - Claudia E Kuehni
- Childhood Cancer Research Group, Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland.
- Division of Hematology/Oncology, Department of Pediatrics, Inselspital, University Hospital, University of Bern, Bern, Switzerland.
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18
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Bode SFN, Haendly M, Fabricius D, Mayer B, Zernickel M, Haddad ADM, Frieh P, Elling R, Renk H, Stich M, Jacobsen EM, Debatin KM, Janda A. Pulmonary Function and Persistent Clinical Symptoms in Children and Their Parents 12 Months After Mild SARS-CoV-2 Infection. Front Pediatr 2022; 10:894331. [PMID: 35844730 PMCID: PMC9279894 DOI: 10.3389/fped.2022.894331] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 05/09/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Pulmonary involvement is the leading cause of morbidity and mortality after severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection. Long-term impairment has been reported in adults with severe infection. However, most infections cause only mild symptoms or are even asymptomatic, especially in children. There is insufficient evidence regarding pulmonary outcome measures in mild SARS-CoV-2. The objectives of this study were to determine spirometry parameters after SARS-CoV-2 infection and correlate those with reported persisting symptoms in children, adolescents, and adults. METHODS Data on clinical symptoms during acute infection as well as SARS-CoV-2 serology results were recorded. Twelve months after infection, spirometry was performed and information on persisting symptoms was collected using a structured questionnaire. 182 participants (108 SARS-CoV-2 positive) from 48 families were included; 53 children (< 14 years), 34 adolescents and young adults (14-25 years), and 95 adults. RESULTS Spirometry values did not significantly differ between the particular subgroups of the cohort (adults, adolescents, children; infected and non-infected individuals). Adults reported more symptoms during acute infection as well more persisting fatigue (29.7% of participants), reduced physical resilience (34.4%), and dyspnea (25.0%) 12 months after infection than adolescents (fatigue 26.7%, reduced physical resilience 20%, and 0% dyspnea) and children (4%, 0%, 0%, respectively). There was no correlation between persistent subjective symptoms and spirometry results. DISCUSSION Children and adolescents are less affected than adults by acute SARS-CoV-2 as well as by post-infection persistent symptoms. Spirometry was not able to demonstrate any differences between healthy individuals and participants who had suffered from mild SARS-CoV-2 12 months after the infection.
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Affiliation(s)
- Sebastian F N Bode
- Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, Ulm University, Ulm, Germany
| | - Marisa Haendly
- Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, Ulm University, Ulm, Germany
| | - Dorit Fabricius
- Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, Ulm University, Ulm, Germany
| | - Benjamin Mayer
- Institute of Epidemiology and Medical Biometry, Ulm University, Ulm, Germany
| | - Maria Zernickel
- Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, Ulm University, Ulm, Germany
| | - Anneke Donne Maree Haddad
- Center for Pediatrics and Adolescent Medicine, Medical Center Freiburg, Germany and Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Pauline Frieh
- Center for Pediatrics and Adolescent Medicine, Medical Center Freiburg, Germany and Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Roland Elling
- Center for Pediatrics and Adolescent Medicine, Medical Center Freiburg, Germany and Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Institute for Immunodeficiency, Medical Center Freiburg, Germany and Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Hanna Renk
- University Children's Hospital Tübingen, Tübingen, Germany
| | - Maximilian Stich
- Department of Pediatrics, University Children's Hospital Heidelberg, Heidelberg, Germany
| | - Eva-Maria Jacobsen
- Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, Ulm University, Ulm, Germany
| | - Klaus-Michael Debatin
- Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, Ulm University, Ulm, Germany
| | - Ales Janda
- Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, Ulm University, Ulm, Germany
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Tebbe W, Wittkowski H, Tebbe J, Hülskamp G. Case report: Idiopathic subglottic stenosis in a girl; successful treatment with macrolides. Front Pediatr 2022; 10:888282. [PMID: 36061399 PMCID: PMC9434006 DOI: 10.3389/fped.2022.888282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 07/21/2022] [Indexed: 11/13/2022] Open
Abstract
An 8-year-old girl presented with treatment-refractory cough and inspiratory stridor. Bronchoscopies showed progressive scarring leading to narrowing of the proximal trachea (Myer-Cotton Grade 2) and epithelial metaplasia of the tracheal and bronchial mucosa. After excluding other causes of congenital and acquired tracheal stenosis, an idiopathic subglottic tracheal stenosis (iSGS) was diagnosed. Because of the patient's young age, a judicious therapeutic approach seemed appropriate. Therapy with azithromycin, followed by roxithromycin, was started. Symptoms almost completely subsided, spirometry normalized, and endoscopic and histologic findings improved considerably. Therapy has been continued for more than 3 years with normal lung function values, and no compromise on physical activities and development. In instances of iSGS, therapy with macrolides is worth considering before more invasive procedures such as dilatation, laser, intralesional injections, or surgical resection are performed.
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Affiliation(s)
- Wolfgang Tebbe
- Pädiatrische Pneumologie, Klinik für Kinder - und Jugendmedizin, Clemenshospital, Münster, Germany
| | - Helmut Wittkowski
- Pädiatrische Rheumatologie und ImmunologieKlinik für Kinder - und Jugendmedizin, Universitätsklinikum Münster (UKM), Münster, Germany
| | - Johannes Tebbe
- Allgemeine Pädiatrie, Pädiatrische Pneumologie, Klinik für Kinder- und Jugendmedizin, Universitätsklinikum Münster (UKM), Münster, Germany
| | - Georg Hülskamp
- Pädiatrische Pneumologie, Klinik für Kinder - und Jugendmedizin, Clemenshospital, Münster, Germany
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20
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Instructional Training Compared with Self-Study for Pulmonary Function Test Interpretation. ATS Sch 2021; 2:566-580. [PMID: 35079740 PMCID: PMC8751683 DOI: 10.34197/ats-scholar.2021-0035oc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 07/12/2021] [Indexed: 11/18/2022] Open
Abstract
Background Pulmonary diseases have considerable prognostic relevance for all-cause mortality. Most patients with lung diseases such as chronic obstructive pulmonary disease are treated by general practitioners. Understanding the clinical consequences such as pulmonary hyperinflation or reduced diffusion capacity is important for the management and prognosis of patients with chronic respiratory disorders. Therefore, the interpretation of pulmonary function testing (PFT) results needs to see more emphasis in the medical education curriculum. Objective To develop PFT training for final-year medical students and to compare the efficacy of instructional training to self-reliant textbook study. Methods A two-armed randomized control trial compares learning outcomes in PFT interpretation. A total of 25 final-year medical students were selected at random into the 1) instructional training group or 2) self-reliant textbook study group on PFT interpretation. The learning time for both groups was 2 hours. The duration of the written pre- and post-training examinations was 60 minutes each. Both exams had a knowledge section (30 questions, maximum 120 points) and a skills section (11 case studies, maximum 75 points). Results The instructional training group acquired significantly more knowledge and, in particular, higher skill levels when compared with the self-reliant reading group. In the reading group, knowledge scores increased from 48 to 60% (12%) and skills scores increased from 14 to 22% (8%), whereas in the instructional group, knowledge increased from 47 to 71% (24%) and skills from 18 to 58% (40%). A multivariate analysis (Pillai’s Trace: 0.633; P < 0.001) as well as follow-up univariate analyses reveal that these differences are statistically significant (knowledge: F = 8.811, df = 1, P = 0.007; skills F = 33.965, df = 1, P < 0.001). Interestingly, there was no significant group effect in the pure knowledge gain about respiratory disorders per se. Conclusion The self-reliant study group was less able to translate their newly acquired knowledge into interpretation of comprehensive PFT reports. A mandatory 2-hour instructional training greatly enhances the students’ knowledge and skills about PFT interpretation. Obligatory PFT instructional training should therefore be included in the students’ curriculum.
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21
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Steinbeis F, Thibeault C, Doellinger F, Ring RM, Mittermaier M, Ruwwe-Glösenkamp C, Alius F, Knape P, Meyer HJ, Lippert LJ, Helbig ET, Grund D, Temmesfeld-Wollbrück B, Suttorp N, Sander LE, Kurth F, Penzkofer T, Witzenrath M, Zoller T. Severity of respiratory failure and computed chest tomography in acute COVID-19 correlates with pulmonary function and respiratory symptoms after infection with SARS-CoV-2: An observational longitudinal study over 12 months. Respir Med 2021; 191:106709. [PMID: 34871947 PMCID: PMC8632363 DOI: 10.1016/j.rmed.2021.106709] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 11/11/2021] [Accepted: 11/29/2021] [Indexed: 01/21/2023]
Abstract
INTRODUCTION Prospective and longitudinal data on pulmonary injury over one year after acute coronavirus disease 2019 (COVID-19) are sparse. We aim to determine reductions in pulmonary function and respiratory related quality of life up to 12 months after acute COVID-19. METHODS Patients with acute COVID-19 were enrolled into an ongoing single-centre, prospective observational study and prospectively examined 6 weeks, 3, 6 and 12 months after onset of COVID-19 symptoms. Chest CT-scans, pulmonary function and symptoms assessed by St. Georges Respiratory Questionnaire were used to evaluate respiratory limitations. Patients were stratified according to severity of acute COVID-19. RESULTS Median age of all patients was 57 years, 37.8% were female. Higher age, male sex and higher BMI were associated with acute-COVID-19 severity (p < 0.0001, 0.001 and 0.004 respectively). Also, pulmonary restriction and reduced carbon monoxide diffusion capacity was associated with disease severity. In patients with restriction and impaired diffusion capacity, FVC improved over 12 months from 61.32 to 71.82, TLC from 68.92 to 76.95, DLCO from 60.18 to 68.98 and KCO from 81.28 to 87.80 (percent predicted values; p = 0.002, 0.045, 0.0002 and 0.0005). The CT-score of lung involvement in the acute phase was associated with restriction and reduction in diffusion capacity in follow-up. Respiratory symptoms improved for patients in higher severity groups during follow-up, but not for patients with initially mild disease. CONCLUSION Severity of respiratory failure during COVID-19 correlates with the degree of pulmonary function impairment and respiratory quality of life in the year after acute infection.
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Affiliation(s)
- Fridolin Steinbeis
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Infectious Diseases and Respiratory Medicine, Charitéplatz 1, 10117, Berlin, Germany
| | - Charlotte Thibeault
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Infectious Diseases and Respiratory Medicine, Charitéplatz 1, 10117, Berlin, Germany
| | - Felix Doellinger
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Radiology, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Raphaela Maria Ring
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Infectious Diseases and Respiratory Medicine, Charitéplatz 1, 10117, Berlin, Germany
| | - Mirja Mittermaier
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Infectious Diseases and Respiratory Medicine, Charitéplatz 1, 10117, Berlin, Germany; Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Christoph Ruwwe-Glösenkamp
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Infectious Diseases and Respiratory Medicine, Charitéplatz 1, 10117, Berlin, Germany
| | - Florian Alius
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Infectious Diseases and Respiratory Medicine, Charitéplatz 1, 10117, Berlin, Germany
| | - Philipp Knape
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Infectious Diseases and Respiratory Medicine, Charitéplatz 1, 10117, Berlin, Germany
| | - Hans-Jakob Meyer
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Infectious Diseases and Respiratory Medicine, Charitéplatz 1, 10117, Berlin, Germany
| | - Lena Johanna Lippert
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Infectious Diseases and Respiratory Medicine, Charitéplatz 1, 10117, Berlin, Germany
| | - Elisa Theresa Helbig
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Infectious Diseases and Respiratory Medicine, Charitéplatz 1, 10117, Berlin, Germany
| | - Daniel Grund
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Infectious Diseases and Respiratory Medicine, Charitéplatz 1, 10117, Berlin, Germany
| | - Bettina Temmesfeld-Wollbrück
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Infectious Diseases and Respiratory Medicine, Charitéplatz 1, 10117, Berlin, Germany
| | - Norbert Suttorp
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Infectious Diseases and Respiratory Medicine, Charitéplatz 1, 10117, Berlin, Germany; German Center for Lung Research (DZL), Berlin, Germany
| | - Leif Erik Sander
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Infectious Diseases and Respiratory Medicine, Charitéplatz 1, 10117, Berlin, Germany; German Center for Lung Research (DZL), Berlin, Germany
| | - Florian Kurth
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Infectious Diseases and Respiratory Medicine, Charitéplatz 1, 10117, Berlin, Germany; Department of Tropical Medicine, Bernhard Nocht Institute for Tropical Medicine, And Department of Medicine I, University Medical Centre Hamburg-Eppendorf, 20359, Hamburg, Germany
| | - Tobias Penzkofer
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Radiology, Augustenburger Platz 1, 13353, Berlin, Germany; Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Martin Witzenrath
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Infectious Diseases and Respiratory Medicine, Charitéplatz 1, 10117, Berlin, Germany; German Center for Lung Research (DZL), Berlin, Germany
| | - Thomas Zoller
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Infectious Diseases and Respiratory Medicine, Charitéplatz 1, 10117, Berlin, Germany; Swiss Tropical and Public Health Institute, Basel, Switzerland.
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Gareis H, Schulz B. [Pulmonary function testing in the cat - an overview]. TIERARZTLICHE PRAXIS. AUSGABE K, KLEINTIERE/HEIMTIERE 2021; 49:441-454. [PMID: 34861722 DOI: 10.1055/a-1640-4123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This article provides an overview of currently available pulmonary function tests in cats, divided into invasive and non-invasive methods. Invasive techniques comprise arterial blood gas analysis and measurement of pulmonary mechanics. Non-invasive techniques include pulse oximetry and capnography, as well as methods not yet integrated into everyday practice such as tidal breathing airflow-volume loops, whole-body barometric plethysmography and thorax compression. In this article, the background, execution, interpretation, and limitations of each test are discussed. Proper performance and assessment of pulmonary function measurements may aid in understanding the pathophysiology of feline respiratory disease and in increasing objectivity when assessing the existing disease and treatment efficacy.
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Affiliation(s)
- Hannah Gareis
- Medizinische Kleintierklinik, Ludwig-Maximilians-Universität München
| | - Bianka Schulz
- Medizinische Kleintierklinik, Ludwig-Maximilians-Universität München
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23
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Preisser AM, Koschel D, Merget R, Nowak D, Raulf M, Heidrich J. Workplace-related inhalation test - Specific inhalation challenge: S2k Guideline of the German Society for Occupational and Environmental Medicine e.V. (DGAUM), the German Society for Pneumology and Respiratory Medicine e.V. (DGP) and the German Society for Allergology and Clinical Immunology e.V. (DGAKI). Allergol Select 2021; 5:315-334. [PMID: 34646977 PMCID: PMC8507414 DOI: 10.5414/alx02280e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 10/01/2021] [Indexed: 11/25/2022] Open
Abstract
Not available.
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Affiliation(s)
- Alexandra M. Preisser
- Institute for Occupational and Maritime Medicine, University Medical Center Hamburg-Eppendorf, Hamburg
- Mandated representative of the German Society for Occupational and Environmental Medicine e. V. (DGAUM)
- Coordinator of the guideline
| | - Dirk Koschel
- Department of Internal Medicine and Pneumology, Fachkrankenhaus Coswig, Lung Center, Coswig, Division of Pneumology, Medical Department I, University Hospital Carl Gustav Carus, Dresden
- Mandated representative of the German Society for Allergology and Clinical Immunology (DGAKI)
| | - Rolf Merget
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University Bochum (IPA), Bochum, and
- Mandated representative of the German Society for Occupational and Environmental Medicine e. V. (DGAUM)
| | - Dennis Nowak
- Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital, LMU Munich, CPC Comprehensive Pneumology Center Munich, DZL, Deutsches Zentrum für Lungenforschung Munich, Germany
- Mandated representative of the German Society for Pneumology and Respiratory Medicine e. V. (DGP) , and
| | - Monika Raulf
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University Bochum (IPA), Bochum, and
- Mandated representative of the German Society for Allergology and Clinical Immunology (DGAKI)
| | - Jan Heidrich
- Institute for Occupational and Maritime Medicine, University Medical Center Hamburg-Eppendorf, Hamburg
- Coordinator of the guideline
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24
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Rothe T. [Spirometry in the Medical Practice - Part 2: Interpretation]. PRAXIS 2021; 110:752-759. [PMID: 34583544 DOI: 10.1024/1661-8157/a003705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Spirometry in the Medical Practice - Part 2: Interpretation Abstract. The way in which spirometry should be assessed correctly was defined internationally in 2005. Compared to before, it was newly defined that the FEV1/VC ratio is used as a parameter to detect an obstruction. An obstruction is of significance if this measured value is below the 5 % percentile, which is usually indicated as a Z-Score of minus 1,645 in the automatically generated protocol. To generate this value, the software must contain the modern GLI standard values and the patient data (gender, age, height). A proven obstruction shows significant reversibility if bronchospasmolysis improves FEV1 by at least 12 % and 200 ml absolute. The determination of the severity of obstruction is based on the extent of the reduction in FEV1 relative to the individual norm. Even after reading both parts of this publication, ambiguities will still arise in individual cases when performing spirometry in clinical practice. In such cases, it is worthwhile to present these findings to the local pulmonologist for co-assessment. This results in a learning effect that will consolidate expertise.
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Effectiveness of a Three-Week Inpatient Pulmonary Rehabilitation Program for Patients after COVID-19: A Prospective Observational Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18179001. [PMID: 34501596 PMCID: PMC8430843 DOI: 10.3390/ijerph18179001] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/19/2021] [Accepted: 08/21/2021] [Indexed: 01/28/2023]
Abstract
For COVID-19 patients who remain symptomatic after the acute phase, pulmonary rehabilitation (PR) is recommended. However, only a few studies have investigated the effectiveness of PR, especially considering the duration between the acute phase of COVID-19 and the onset of rehabilitation, as well as the initial severity. This prospective observational study evaluated the efficacy of PR in patients after COVID-19. A total of 120 still-symptomatic patients referred for PR after overcoming acute COVID-19 were asked to participate, of whom 108 (mean age 55.6 ± 10.1 years, 45.4% female) consented. The patients were assigned to three groups according to the time of referral and initial disease severity (severe acute; severe after interval; mild after interval). The primary outcome was dyspnea. Secondary outcomes included other respiratory disease symptoms, physical capacity, lung function, fatigue, quality of life (QoL), depression, and anxiety. Furthermore, patients rated the overall effectiveness of PR and their subjective change in health status. At the end of PR, we detected improvements with large effect sizes in exertional dyspnea, physical capacity, QoL, fatigue, and depression in the overall group. Other parameters changed with small to medium effect sizes. PR was effective after acute COVID-19 in all three groups analyzed.
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Kahnert K, Lutter JI, Welte T, Alter P, Behr J, Herth F, Kauczor HU, Söhler S, Pfeifer M, Watz H, Vogelmeier CF, Bals R, Jörres RA, Trudzinski FC. Impact of the COVID-19 pandemic on the behaviour and health status of patients with COPD: results from the German COPD cohort COSYCONET. ERJ Open Res 2021; 7:00242-2021. [PMID: 34430659 PMCID: PMC8287574 DOI: 10.1183/23120541.00242-2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 06/08/2021] [Indexed: 11/24/2022] Open
Abstract
Background: Infection control measures for coronavirus disease 2019 (COVID-19) might have affected management and clinical state of patients with COPD. We analysed to which extent this common notion is fact-based. Methods: Patients of the COSYCONET cohort were contacted with three recurring surveys (COVID1, 2 and 3 at 0, 3 and 6 months, respectively). The questionnaires comprised behaviour, clinical and functional state, and medical treatment. The responses to the questionnaires were compared amongst themselves and with pre-COVID information from the last visit of COSYCONET. Results: Overall, 594 patients were contacted and 375 patients (58% males, forced expiratory volume in 1 s (FEV1) 61±22% predicted) provided valid data in COVID1 and COVID2. Five patients reported infections with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Most patients – except for patients with higher education – reported compliance with recommended protective measures, whereby compliance to hygiene, contact and access to physicians slightly improved between COVID1 and COVID2. Also, patients obtained more information from physicians than from public media. In the majority of cases, the personal physician could not be substituted by remote consultation. Over time, symptoms slightly increased and self-assessed physical capacity decreased. Results of COVID3 were similar. Women and patients with more exacerbations and dyspnoea avoided medical consultations, whereas Global Initiative for Chronic Obstructive Lung Disease (GOLD) D patients were more amenable to tele-consultation. Conclusion: In well-characterised COPD patients, we observed on average slight deteriorations of clinical state during the period of COVID-19 restrictions, with high and partially increasing adherence to protective measures. The data suggest that in particular, women and GOLD D patients should be actively contacted by physicians to identify deteriorations. During the period of #COVID19 restrictions, slight deteriorations of clinical state with increasing adherence to protective measures were observed. In particular, women and GOLD D patients are at risk of deterioration.https://bit.ly/2S7fhEo
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Affiliation(s)
- Kathrin Kahnert
- Dept of Medicine V, University Hospital, Ludwig-Maximilians-University (LMU) Munich, Comprehensive Pneumology Center Munich (CPC-M), German Center for Lung Research (DZL), Munich, Germany
| | - Johanna I Lutter
- Institute of Health Economics and Health Care Management, Helmholtz Zentrum München GmbH - German Research Center for Environmental Health, CPC-M, DZL, Munich, Germany
| | - Tobias Welte
- Dept of Pneumology, Hannover Medical School, Hannover, Germany
| | - Peter Alter
- Dept of Medicine, Pulmonary and Critical Care Medicine, Philipps University of Marburg (UMR), DZL, Marburg, Germany
| | - Jürgen Behr
- Dept of Medicine V, University Hospital, Ludwig-Maximilians-University (LMU) Munich, Comprehensive Pneumology Center Munich (CPC-M), German Center for Lung Research (DZL), Munich, Germany
| | - Felix Herth
- Dept of Pneumology and Critical Care Medicine, Thoraxklinik University of Heidelberg, Translational Lung Research Center Heidelberg (TLRC-H), DZL, Heidelberg, Germany
| | - Hans-Ulrich Kauczor
- Dept of Diagnostic and Interventional Radiology, University Hospital of Heidelberg, DZL, Heidelberg, Germany
| | - Sandra Söhler
- Dept of Medicine, Pulmonary and Critical Care Medicine, Philipps University of Marburg (UMR), DZL, Marburg, Germany
| | - Michael Pfeifer
- Dept of Respiratory Medicine, Donaustauf Hospital, Regensburg, Germany
| | - Henrik Watz
- Pulmonary Research Institute at LungenClinic Grosshansdorf, Airway Research Center North (ARCN), DZL, Grosshansdorf, Germany
| | - Claus F Vogelmeier
- Dept of Medicine, Pulmonary and Critical Care Medicine, Philipps University of Marburg (UMR), DZL, Marburg, Germany
| | - Robert Bals
- Dept of Internal Medicine V - Pulmonology, Allergology, Critical Care Care Medicine, Saarland University Hospital, Homburg, Germany
| | - Rudolf A Jörres
- Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, LMU, LMU University Hospital, CPC-M, DZL, Munich, Germany
| | - Franziska C Trudzinski
- Dept of Pneumology and Critical Care Medicine, Thoraxklinik University of Heidelberg, Translational Lung Research Center Heidelberg (TLRC-H), DZL, Heidelberg, Germany
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Feil C, Staib F, Berger MR, Stein T, Schmidtmann I, Forster A, Schimanski CC. Sniffer dogs can identify lung cancer patients from breath and urine samples. BMC Cancer 2021; 21:917. [PMID: 34388977 PMCID: PMC8362224 DOI: 10.1186/s12885-021-08651-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 07/26/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Lung cancer is the most common oncological cause of death in the Western world. Early diagnosis is critical for successful treatment. However, no effective screening methods exist. A promising approach could be the use of volatile organic compounds as diagnostic biomarkers. To date there are several studies, in which dogs were trained to discriminate cancer samples from controls. In this study we evaluated the abilities of specifically trained dogs to distinguish samples derived from lung cancer patients of various tumor stages from matched healthy controls. METHODS This single center, double-blind clinical trial was approved by the local ethics committee, project no FF20/2016. The dog was conditioned with urine and breath samples of 36 cancer patients and 150 controls; afterwards, further 246 patients were included: 41 lung cancer patients comprising all stages and 205 healthy controls. From each patient two breath and urine samples were collected and shock frozen. Only samples from new subjects were presented to the dog during study phase randomized, double-blinded. This resulted in a specific conditioned reaction pointing to the cancer sample. RESULTS Using a combination of urine and breath samples, the dog correctly predicted 40 out of 41 cancer samples, corresponding to an overall detection rate of cancer samples of 97.6% (95% CI [87.1, 99.9%]). Using urine samples only the dog achieved a detection rate of 87.8% (95% CI [73.8, 95.9%]). With breath samples, the dog correctly identified cancer in 32 of 41 samples, resulting in a detection rate of 78% (95% CI [62.4, 89.4%]). CONCLUSIONS It is known from current literature that breath and urine samples carry VOCs pointing to cancer growth. We conclude that olfactory detection of lung cancer by specifically trained dogs is highly suggestive to be a simple and non-invasive tool to detect lung cancer. To translate this approach into practice further target compounds need to be identified.
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Affiliation(s)
- Charlotte Feil
- 2nd Department of Internal Medicine, Municipal Hospital Darmstadt, Grafenstraße 9, 64283, Darmstadt, Germany
| | - Frank Staib
- 2nd Department of Internal Medicine, Municipal Hospital Darmstadt, Grafenstraße 9, 64283, Darmstadt, Germany
| | - Martin R Berger
- Toxicology and Chemotherapy Unit, German Cancer Research Center, Heidelberg, Germany
| | - Thorsten Stein
- 2nd Department of Internal Medicine, Municipal Hospital Darmstadt, Grafenstraße 9, 64283, Darmstadt, Germany
| | - Irene Schmidtmann
- Institute for Medical Biostatistics, Epidemiology and Informatics, Johannes Gutenberg-University Mainz, Mainz, Germany
| | | | - Carl C Schimanski
- 2nd Department of Internal Medicine, Municipal Hospital Darmstadt, Grafenstraße 9, 64283, Darmstadt, Germany.
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Jankrift N, Kellerer C, Magnussen H, Nowak D, Jörres RA, Schneider A. The role of clinical signs and spirometry in the diagnosis of obstructive airway diseases: a systematic analysis adapted to general practice settings. J Thorac Dis 2021; 13:3369-3382. [PMID: 34277033 PMCID: PMC8264721 DOI: 10.21037/jtd-20-3539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 04/09/2021] [Indexed: 11/16/2022]
Abstract
Background In general practice (GP), the diagnosis of obstructive airway diseases much relies on diagnostic questions, in view of the limited availability of lung function. We systematically assessed the relative importance of such questions for diagnosing asthma and chronic obstructive pulmonary disease (COPD), either without or with information from spirometry. Methods We used data obtained in a pulmonary practice to ensure the validity of diagnoses and assessments. Subjects with a diagnosis of COPD (n=260), or asthma (n=433), or other respiratory diseases (n=230), and subjects without respiratory diseases (n=364, controls) were included. The diagnostic questions comprised eight items, covering smoking history, self-attributed allergic rhinitis, dyspnea, cough, phlegm and wheeze. Optionally standard parameters of the flow-volume-curve were included. Decision trees for the diagnosis of COPD and asthma were constructed, moreover a probabilistic diagnostic network based on the results of path analyses describing the relationship between variables. Results In the decision trees, age, sex, current smoking, wheezing, dyspnea upon mild exertion, self-attributed allergic rhinitis, phlegm, forced expiratory volume in one second (FEV1), and expiratory flow rates were relevant, depending on the diagnostic comparison, while cough, dyspnea upon strong exertion and ex-smoker status were not relevant. In contrast, the probabilistic network for the diagnosis of COPD and asthma versus controls incorporated all diagnostic questions, i.e., dyspnea upon mild or strong exertion, current smoking, ex-smoking, wheezing, cough and phlegm but from spirometry only FEV1. Depending on the individual pattern, the probability for COPD could raise from 25% to 81%, while the diagnostic gain for asthma was lower. Conclusions The study developed simple diagnostic algorithms for asthma and COPD that take into account the relative importance of clinical signs and history, as well as spirometric data if available. The diagnostic accuracy was especially high for COPD. These algorithms may be helpful as a starting point in the standardisation of diagnostic strategies in GP practices. Trial registration The study is registered under DRKS00013935 at German Clinical Trials Register (DRKS, Date of registration 01/03/2018).
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Affiliation(s)
- Neele Jankrift
- Technical University of Munich, School of Medicine, Institute of General Practice and Health Services Research, Munich, Germany
| | - Christina Kellerer
- Technical University of Munich, School of Medicine, Institute of General Practice and Health Services Research, Munich, Germany.,Institute and Clinic for Occupational, Social and Environmental Medicine, LMU University Hospital, Comprehensive Pneumology Center (CPC) Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Helgo Magnussen
- Pulmonary Research Institute at LungenClinic Grosshansdorf, Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Grosshansdorf, Germany
| | - Dennis Nowak
- Institute and Clinic for Occupational, Social and Environmental Medicine, LMU University Hospital, Comprehensive Pneumology Center (CPC) Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Rudolf A Jörres
- Institute and Clinic for Occupational, Social and Environmental Medicine, LMU University Hospital, Comprehensive Pneumology Center (CPC) Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Antonius Schneider
- Technical University of Munich, School of Medicine, Institute of General Practice and Health Services Research, Munich, Germany
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29
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Lutter JI, Jörres RA, Trudzinski FC, Alter P, Kellerer C, Watz H, Welte T, Bals R, Kauffmann-Guerrero D, Behr J, Holle R, F Vogelmeier C, Kahnert K. Treatment of COPD Groups GOLD A and B with Inhaled Corticosteroids in the COSYCONET Cohort - Determinants and Consequences. Int J Chron Obstruct Pulmon Dis 2021; 16:987-998. [PMID: 33883892 PMCID: PMC8053704 DOI: 10.2147/copd.s304532] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 03/23/2021] [Indexed: 11/23/2022] Open
Abstract
Background In COPD patients of GOLD groups A and B, a high degree of treatment with inhaled corticosteroids (ICS) has been reported, which is regarded as overtreatment according to GOLD recommendations. We investigated which factors predict ICS use and which relationship it has to clinical and functional outcomes, or healthcare costs. Methods We used pooled data from visits 1 and 3 of the COSYCONET cohort (n=2741, n=2053, interval 1.5 years) including patients categorized as GOLD grades 1-4 and GOLD group A or B at both visits (n=1080). Comparisons were performed using ANOVA, and regression analyses using propensity matching and inverse probability weighting to adjust for differences between ICS groups. These were defined as having ICS at both visits (always) vs no ICS at both visits (never). Measures were divided into predictors of ICS treatment and outcomes. Results Among 1080 patients, 608 patients were eligible for ICS groups (n=297 never, n=311 always). Prior to matching, patients with ICS showed significantly (p<0.05 each) impaired lung function, symptoms and exacerbation history. After matching, the outcomes generic quality of life and CO diffusing capacity were increased in ICS patients (p<0.05 each). Moreover, costs for respiratory medication, but not total health care costs, were significantly elevated in the ICS group by 780€ per year. Conclusion ICS therapy in COPD GOLD A/B patients can have small positive and negative effects on clinical outcomes and health care costs, indicating that the clinical evaluation of ICS over-therapy in COPD requires a multi-dimensional approach.
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Affiliation(s)
- Johanna I Lutter
- Institute of Health Economics and Health Care Management, Helmholtz Zentrum München GmbH - German Research Center for Environmental Health, Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research, Munich, Germany
| | - Rudolf A Jörres
- Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, LMU Hospital, Comprehensive Pneumology Center Munich (CPC-M), Munich, Germany
| | - Franziska C Trudzinski
- Department of Pneumology and Critical Care Medicine, Thoraxklinik University of Heidelberg, Translational Lung Research Center Heidelberg (TLRC-H), Member of the German Center for Lung Research (DZL), Heidelberg, Germany
| | - Peter Alter
- Department of Medicine, Pulmonary and Critical Care Medicine, University Medical Center Giessen and Marburg, Philipps-University Marburg (UMR), Germany, Member of the German Center for Lung Research (DZL), Marburg, Germany
| | - Christina Kellerer
- Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, LMU Hospital, Comprehensive Pneumology Center Munich (CPC-M), Munich, Germany.,School of Medicine, Institute of General Practice and Health Services Research, Technical University of Munich (TUM), Munich, Germany
| | - Henrik Watz
- Pulmonary Research Institute at LungenClinic Grosshansdorf, Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Grosshansdorf, Germany
| | - Tobias Welte
- Department of Pneumology, Hannover Medical School, Hannover, Germany
| | - Robert Bals
- Department of Internal Medicine V - Pulmonology, Allergology, Respiratory Intensive Care Medicine, Saarland University Hospital, Homburg, Germany
| | - Diego Kauffmann-Guerrero
- Department of Medicine V, University of Munich (LMU), Comprehensive Pneumology Center, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Jürgen Behr
- Department of Medicine V, University of Munich (LMU), Comprehensive Pneumology Center, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Rolf Holle
- Institute for Medical Informatics, Biometry and Epidemiology, LMU Hospital, Munich, Germany
| | - Claus F Vogelmeier
- Department of Medicine, Pulmonary and Critical Care Medicine, University Medical Center Giessen and Marburg, Philipps-University Marburg (UMR), Germany, Member of the German Center for Lung Research (DZL), Marburg, Germany
| | - Kathrin Kahnert
- Department of Medicine V, University of Munich (LMU), Comprehensive Pneumology Center, Member of the German Center for Lung Research (DZL), Munich, Germany
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Wernhart S, Hedderich J, Weihe E. Vital capacity and valvular dysfunction could serve as non-invasive predictors to screen for exercise pulmonary hypertension in the elderly based on a new diagnostic score. J Cardiovasc Thorac Res 2021; 13:68-78. [PMID: 33815705 PMCID: PMC8007893 DOI: 10.34172/jcvtr.2021.05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 01/05/2021] [Indexed: 11/09/2022] Open
Abstract
Introduction: Exercise pulmonary hypertension (exPH) has been defined as total pulmonary resistance (TPR) >3 mm Hg/L/min and mean pulmonary artery pressure (mPAP) >30 mm Hg, albeit with a considerable risk of false positives in elderly patients with lower cardiac output during exercise.
Methods: We retrospectively analysed patients with unclear dyspnea receiving right heart catheterisation at rest and exercise (n=244) between January 2015 and January 2020. Lung function testing, blood gas analysis, and echocardiography were performed. We elaborated a combinatorial score to advance the current definition of exPH in an elderly population (mean age 67.0 years±11.9). A stepwise regression model was calculated to non-invasively predict exPH.
Results: Analysis of variables across the achieved peak power allowed the creation of a model for defining exPH, where three out of four criteria needed to be fulfilled: Peak power ≤100 Watt, pulmonary capillary wedge pressure ≥18 mm Hg, pulmonary vascular resistance >3 Wood Units, and mPAP ≥35 mm Hg. The new scoring model resulted in a lower number of exPH diagnoses than the current suggestion (63.1% vs. 78.3%). We present a combinatorial model with vital capacity (VCmax) and valvular dysfunction to predict exPH (sensitivity 93.2%; specificity 44.2%, area under the curve 0.73) based on our suggested criteria. The odds of the presence of exPH were 2.1 for a 1 l loss in VCmax and 3.6 for having valvular dysfunction.
Conclusion: We advance a revised definition of exPH in elderly patients in order to overcome current limitations. We establish a new non-invasive approach to predict exPH by assessing VCmax and valvular dysfunction for early risk stratification in elderly patients.
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Affiliation(s)
- Simon Wernhart
- Department of Cardiology, Fachkrankenhaus Kloster Grafschaft, Schmallenberg, Germany.,University Hospital Essen, University Duisburg-Essen, West German Heart- and Vascular Center, Department of Cardiology and Vascular Medicine, Hufelandstrasse 55, 45147 Essen, Germany
| | - Jürgen Hedderich
- Medistat-Biomedical Statistics, Medistat GmbH, Kronshagen, Germany
| | - Eberhard Weihe
- Institute of Anatomy and Cell Biology of the Philipps-University Marburg, Germany
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Lenga P, Ruwwe-Glösenkamp C, Grah C, Pfannschmidt J, Rückert J, Eggeling S, Gläser S, Schmidt B, Schneider P, Kurz S, Leschber G, Gebhardt A, Becke B, Schega O, Borchardt J, Hübner RH. Endoscopic lung volume reduction with endobronchial valves in very low D LCO patients: results from the German Registry - Lungenemphysemregister e.V. ERJ Open Res 2021; 7:00449-2020. [PMID: 33532454 PMCID: PMC7836438 DOI: 10.1183/23120541.00449-2020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 09/23/2020] [Indexed: 11/29/2022] Open
Abstract
Background Endoscopic lung volume reduction (ELVR) with valves has been suggested to be the key strategy for patients with severe emphysema and concomitant low diffusing capacity of the lung for carbon monoxide (DLCO). However, robust evidence is still missing. We therefore aim to compare clinical outcomes in relation to DLCO for patients treated with ELVR. Methods We assessed DLCO at baseline and 3 months follow-up and compared pre- and postprocedural pulmonary function test, quality of life, exercise capacity and adverse events. This is a retrospective subanalysis of prospectively collected data from the German Lung Emphysema Registry. Results In total, 121 patients treated with ELVR were analysed. Thirty-four patients with a DLCO ≤20% and 87 patients with a DLCO >20% showed similar baseline characteristics. After ELVR, there was a decrease of residual volume (both p<0.001 to baseline) in both groups, and both demonstrated better quality of life (p<0.01 to baseline). Forced expiratory volume in 1 s (FEV1) improved significantly only in patients with a DLCO >20% (p<0.001 to baseline). Exercise capacity remained almost unchanged in both groups (p=0.3). The most frequent complication for both groups was a pneumothorax (DLCO ≤20%: 17.6% versus DLCO >20%: 16.1%; p=0.728). However, there were no significant differences in other adverse events between both groups. Conclusions ELVR improves lung function as well as quality of life in patients with DLCO >20% and DLCO ≤20%. Adverse events did not differ between groups. Therefore, ELVR should be considered as a treatment option, even in patients with a very low DLCO. Endoscopic lung volume reduction with endobronchial valves can be safely performed in patients with a very low diffusing capacity of the lung (DLCO). Clinical effectiveness is comparable to patients with higher DLCO.https://bit.ly/3cOgDK1
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Affiliation(s)
- Pavlina Lenga
- Dept of Infectious Diseases and Respiratory Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany.,These authors contributed equally
| | - Christoph Ruwwe-Glösenkamp
- Dept of Infectious Diseases and Respiratory Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany.,These authors contributed equally
| | - Christian Grah
- Dept of Internal Medicine and Respiratory Medicine, Clinic Havelhöhe Berlin, Berlin, Germany
| | - Joachim Pfannschmidt
- Dept of Thoracic Surgery, Heckeshorn Lung Clinic, Helios Klinikum Emil von Behring, Berlin, Germany
| | - Jens Rückert
- Dept of Surgery, Competence Center of Thoracic Surgery, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Stephan Eggeling
- Dept of Thoracic Surgery, Vivantes Netzwerk für Gesundheit, Klinikum Neukölln, Berlin, Germany
| | - Sven Gläser
- Dept of Pulmonary Medicine and Infectious Diseases, Vivantes-Klinikum Neukölln, Berlin, Germany
| | - Bernd Schmidt
- Dept of Respiratory Medicine, DRK Kliniken Berlin Mitte, Berlin, Germany
| | - Paul Schneider
- Dept of Thoracic Surgery, DRK Kliniken Berlin Mitte, Berlin, Germany
| | - Sylke Kurz
- Dept of Respiratory Medicine, ELK Berlin Chest Hospital, Berlin, Germany
| | - Gunda Leschber
- Dept of Thoracic Surgery, ELK Berlin Chest Hospital, Berlin, Germany
| | - Andreas Gebhardt
- Dept of Internal Medicine and Respiratory Medicine, Helios Hospital Emil von Behring, Berlin, Germany
| | - Birgit Becke
- Dept of Respiratory Medicine, Johanniter-Krankenhaus, Treuenbrietzen, Germany
| | - Olaf Schega
- Dept of Thoracic Surgery, Johanniter-Krankenhaus, Treuenbrietzen, Germany
| | - Jakob Borchardt
- Dept of Pulmonary Medicine and Infectious Diseases, Vivantes-Klinikum Friedrichshain, Berlin, Germany
| | - Ralf-Harto Hübner
- Dept of Infectious Diseases and Respiratory Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany
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Cheng S, Dong X, Lan L, He Z, Yu S, Yang Y, Zhang C, Chen M, Yang J, Chu H, Liu Y, Wang M, Huang Q, Zeng F. Acupuncture for chronic persistent asthma based on the theory of Meridian-viscera Association: study protocol for a multi-center randomized controlled trial in China. Trials 2021; 22:17. [PMID: 33407788 PMCID: PMC7789474 DOI: 10.1186/s13063-020-04844-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 10/28/2020] [Indexed: 12/02/2022] Open
Abstract
Background Acupuncture is effective in symptom and quality of life improvement of chronic asthma, but the efficacy differences between different acupoints are uncertain. In terms of the theory of Meridian-viscera Association, the study aims to investigate the different effectiveness between acupoints in Lung meridian and the acupoints in Heart meridian, so as to provide the evidence to develop a better prescription of the acupuncture treatment of chronic persistent asthma. Methods This study is a multicentral randomized controlled trial. A total of 68 chronic persistent asthma patients will be randomly allocated into two groups: the Lung meridian group and the Heart meridian group. This trial will include a 2-week baseline period, a 4-week treatment period with 12 sessions’ acupuncture, and an 8-week follow-up period. The primary outcome is the Asthma Quality of Life Questionnaire (AQLQ). Secondary outcomes are the Asthma Control Test (ACT), Peak Expiratory Flow (PEF), and Forced Expiratory Volume in 1 s (FEV1). The AQLQ and ACT will be collected at baseline, week 4, week 8, and week 12 after randomization. PEF, FEV1, the Self-rating Anxiety Scale (SAS), and the Self-rating Depression Scale (SDS) will be assessed at baseline and week 4. Discussion The results will provide evidence for acupuncture prescription selection and the clinical efficacy improvement. The results of this trial will also be used to determine whether or not a full definitive trial will go ahead, which will further confirm the theory of Meridian-viscera Association. Trial registration Chinese Clinical Trial Registry (http://www.chictr.org.cn/showproj.aspx?proj=43803) ChiCTR1900027284. Registered on 7 November 2019 Supplementary information Supplementary information accompanies this paper at 10.1186/s13063-020-04844-8.
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Affiliation(s)
- Shirui Cheng
- Acupuncture and Tuina School/The 3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, 37# Shierqiao Road, Chengdu, 610075, Sichuan, China.,Acupuncture & Brain Research Center, Chengdu University of Traditional Chinese Medicine, 37# Shierqiao Road, Chengdu, 610075, Sichuan, China
| | - Xiaohui Dong
- Acupuncture and Tuina School/The 3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, 37# Shierqiao Road, Chengdu, 610075, Sichuan, China.,Acupuncture & Brain Research Center, Chengdu University of Traditional Chinese Medicine, 37# Shierqiao Road, Chengdu, 610075, Sichuan, China
| | - Lei Lan
- Acupuncture and Tuina School/The 3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, 37# Shierqiao Road, Chengdu, 610075, Sichuan, China.,Acupuncture & Brain Research Center, Chengdu University of Traditional Chinese Medicine, 37# Shierqiao Road, Chengdu, 610075, Sichuan, China
| | - Zhaoxuan He
- Acupuncture and Tuina School/The 3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, 37# Shierqiao Road, Chengdu, 610075, Sichuan, China.,Acupuncture & Brain Research Center, Chengdu University of Traditional Chinese Medicine, 37# Shierqiao Road, Chengdu, 610075, Sichuan, China
| | - Siyi Yu
- Acupuncture and Tuina School/The 3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, 37# Shierqiao Road, Chengdu, 610075, Sichuan, China.,Acupuncture & Brain Research Center, Chengdu University of Traditional Chinese Medicine, 37# Shierqiao Road, Chengdu, 610075, Sichuan, China
| | - Yi Yang
- Acupuncture & Brain Research Center, Chengdu University of Traditional Chinese Medicine, 37# Shierqiao Road, Chengdu, 610075, Sichuan, China.,School of Administration, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, Sichuan, China
| | - Chuantao Zhang
- The First Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, 39# Shierqiao Road, Chengdu, 610075, Sichuan, China
| | - Mei Chen
- The Fifth People's Hospital of Chengdu, Chengdu, 611130, Sichuan, China
| | - Jun Yang
- The First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, Anhui, China
| | - Haoran Chu
- The Second Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, 230031, Anhui, China
| | - Yalan Liu
- Acupuncture and Tuina School/The 3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, 37# Shierqiao Road, Chengdu, 610075, Sichuan, China.,Acupuncture & Brain Research Center, Chengdu University of Traditional Chinese Medicine, 37# Shierqiao Road, Chengdu, 610075, Sichuan, China
| | - Menglin Wang
- Acupuncture and Tuina School/The 3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, 37# Shierqiao Road, Chengdu, 610075, Sichuan, China.,Acupuncture & Brain Research Center, Chengdu University of Traditional Chinese Medicine, 37# Shierqiao Road, Chengdu, 610075, Sichuan, China
| | - Qingsong Huang
- The First Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, 39# Shierqiao Road, Chengdu, 610075, Sichuan, China.
| | - Fang Zeng
- Acupuncture and Tuina School/The 3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, 37# Shierqiao Road, Chengdu, 610075, Sichuan, China. .,Acupuncture & Brain Research Center, Chengdu University of Traditional Chinese Medicine, 37# Shierqiao Road, Chengdu, 610075, Sichuan, China.
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Lutter JI, Jörres RA, Welte T, Watz H, Waschki B, Alter P, Trudzinski FC, Ohlander J, Behr J, Bals R, Studnicka M, Holle R, Vogelmeier CF, Kahnert K. Impact of Education on COPD Severity and All-Cause Mortality in Lifetime Never-Smokers and Longtime Ex-Smokers: Results of the COSYCONET Cohort. Int J Chron Obstruct Pulmon Dis 2020; 15:2787-2798. [PMID: 33177816 PMCID: PMC7652228 DOI: 10.2147/copd.s273839] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 09/23/2020] [Indexed: 01/03/2023] Open
Abstract
Background Beyond smoking, several risk factors for the development of chronic obstructive pulmonary disease (COPD) have been described, among which socioeconomic status including education is of particular interest. We studied the contribution of education to lung function and symptoms relative to smoking in a group of never-smokers with COPD compared to a group of long-time ex-smokers with COPD. Methods We used baseline data of the COSYCONET cohort, including patients of GOLD grades 1-4 who were either never-smokers (n=150, age 68.5y, 53.3% female) or ex-smokers (≥10 packyears) for at least 10 years (n=616, 68.3y, 29.9% female). Socioeconomic status was analyzed using education level and mortality was assessed over a follow-up period of 4.5 years. Analyses were performed using ANOVA and regression models. Results Spirometric lung function did not differ between groups, whereas CO diffusing capacity and indicators of lung hyperinflation/air-trapping showed better values in the never-smoker group. In both groups, spirometric lung function depended on the education level, with better values for higher education. Quality of life and 6-MWD were significantly different in never-smokers as well as patients with higher education. Asthma, alpha-1-antitrypsin deficiency, and bronchiectasis were more often reported in never-smokers, and asthma was more often reported in patients with higher education. Higher education was also associated with reduced mortality (hazard ratio 0.46; 95% CI 0.22-0.98). Conclusion Overall, in the COSYCONET COPD cohort, differences in functional status between never-smokers and long-time ex-smokers were not large. Compared to that, the dependence on education level was more prominent, with higher education associated with better outcomes, including mortality. These data indicate that non-smoking COPD patients' socioeconomic factors are relevant and should be taken into account by clinicians.
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Affiliation(s)
- Johanna I Lutter
- Institute of Health Economics and Health Care Management, Helmholtz Zentrum München GmbH - German Research Center for Environmental Health, Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research, Munich, Germany
| | - Rudolf A Jörres
- Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, Comprehensive Pneumology Center Munich (CPC-M), Ludwig-Maximilians-Universität München, Munich 80336, Germany
| | - Tobias Welte
- Department of Pneumology, Hannover Medical School, Hannover 30625, Germany
| | - Henrik Watz
- Pulmonary Research Institute at Lungen Clinic Grosshansdorf, Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Grosshansdorf 22927, Germany
| | - Benjamin Waschki
- Department of General and Interventional Cardiology, University Heart Center Hamburg, Hamburg, Germany
| | - Peter Alter
- Department of Medicine, Pulmonary and Critical Care Medicine, University Medical Center Giessen and Marburg, Philipps-University Marburg (UMR), Germany, Member of the German Center for Lung Research (DZL), Marburg 35043, Germany
| | - Franziska C Trudzinski
- Department of Diagnostic & Interventional Radiology, University Hospital of Heidelberg, Heidelberg, Germany
| | - Johan Ohlander
- Institute of Health Economics and Health Care Management, Helmholtz Zentrum München GmbH - German Research Center for Environmental Health, Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research, Munich, Germany.,Institute for Risk Assessment Sciences, Utrecht University, Utrecht 3584 CM, Netherlands
| | - Jürgen Behr
- Department of Internal Medicine V, University of Munich (LMU), Comprehensive Pneumology Center, Member of the German Center for Lung Research (DZL), Munich, 80336, Germany
| | - Robert Bals
- Department of Internal Medicine V - Pulmonology, Allergology, Respiratory Intensive Care Medicine, Saarland University Hospital, Homburg 66424, Germany
| | - Michael Studnicka
- Department of Pneumology, Paracelsus Medical University Salzburg, Universitätsklinikum Salzburg, Salzburg 5020, Austria
| | - Rolf Holle
- Institute for Medical Informatics, Biometry and Epidemiology, University Hospital Ludwig-Maximilians-University Munich (LMU), Munich 81377, Germany
| | - Claus F Vogelmeier
- Department of Medicine, Pulmonary and Critical Care Medicine, University Medical Center Giessen and Marburg, Philipps-University Marburg (UMR), Germany, Member of the German Center for Lung Research (DZL), Marburg 35043, Germany
| | - Kathrin Kahnert
- Department of Internal Medicine V, University of Munich (LMU), Comprehensive Pneumology Center, Member of the German Center for Lung Research (DZL), Munich, 80336, Germany
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Alter P, Orszag J, Kellerer C, Kahnert K, Speicher T, Watz H, Bals R, Welte T, Vogelmeier CF, Jörres RA. Prediction of air trapping or pulmonary hyperinflation by forced spirometry in COPD patients: results from COSYCONET. ERJ Open Res 2020; 6:00092-2020. [PMID: 32743009 PMCID: PMC7383055 DOI: 10.1183/23120541.00092-2020] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 05/19/2020] [Indexed: 12/13/2022] Open
Abstract
Background Air trapping and lung hyperinflation are major determinants of prognosis and response to therapy in chronic obstructive pulmonary disease (COPD). They are often determined by body plethysmography, which has limited availability, and so the question arises as to what extent they can be estimated via spirometry. Methods We used data from visits 1–5 of the COPD cohort COSYCONET. Predictive parameters were derived from visit 1 data, while visit 2–5 data was used to assess reproducibility. Pooled data then yielded prediction models including sex, age, height, and body mass index as covariates. Hyperinflation was defined as ratio of residual volume (RV) to total lung capacity (TLC) above the upper limit of normal. (ClinicalTrials.gov identifier: NCT01245933). Results Visit 1 data from 1988 patients (Global Initiative for Chronic Obstructive Lung Disease grades 1–4, n=187, 847, 766, 188, respectively) were available for analysis (n=1231 males, 757 females; mean±sd age 65.1±8.4 years; forced expiratory volume in 1 s (FEV1) 53.1±18.4 % predicted (% pred); forced vital capacity (FVC) 78.8±18.8 % pred; RV/TLC 0.547±0.107). In total, 7157 datasets were analysed. Among measures of hyperinflation, RV/TLC showed the closest relationship to FEV1 % pred and FVC % pred, which were sufficient for prediction. Their relationship to RV/TLC could be depicted in nomograms. Even when neglecting covariates, hyperinflation was predicted by FEV1 % pred, FVC % pred or their combination with an area under the curve of 0.870, 0.864 and 0.889, respectively. Conclusions The degree of air trapping/hyperinflation in terms of RV/TLC can be estimated in a simple manner from forced spirometry, with an accuracy sufficient for inferring the presence of hyperinflation. This may be useful for clinical settings, where body plethysmography is not available. This proposed method allows estimation of hyperinflation in COPD by spirometry, obviating the need for body plethysmography or further techniques. Results are depicted in easily applicable nomograms that can be used in clinical practice.https://bit.ly/3c0tUNL
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Affiliation(s)
- Peter Alter
- Dept of Medicine, Pulmonary and Critical Care Medicine, Philipps University of Marburg (UMR), member of the German Center for Lung Research (DZL), Marburg, Germany
| | - Jan Orszag
- Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, University Hospital, LMU Munich, Comprehensive Pneumology Center Munich (CPC-M), member of the DZL, Munich, Germany
| | - Christina Kellerer
- School of Medicine, Institute of General Practice and Health Services Research, Technical University of Munich, Munich, Germany
| | - Kathrin Kahnert
- Dept of Internal Medicine V, University Hospital, LMU Munich, CPC-M, member of the DZL, Munich, Germany
| | - Tim Speicher
- Dept of Medicine, Pulmonary and Critical Care Medicine, Philipps University of Marburg (UMR), member of the German Center for Lung Research (DZL), Marburg, Germany
| | - Henrik Watz
- Pulmonary Research Institute at LungenClinic Grosshansdorf, Airway Research Center North, member of the DZL, Grosshansdorf, Germany
| | - Robert Bals
- Dept of Internal Medicine V - Pulmonology, Allergology, Intensive Care Medicine, Saarland University Hospital, Homburg, Germany
| | - Tobias Welte
- Clinic for Pneumology, Hannover Medical School, member of the DZL, Hannover, Germany
| | - Claus F Vogelmeier
- Dept of Medicine, Pulmonary and Critical Care Medicine, Philipps University of Marburg (UMR), member of the German Center for Lung Research (DZL), Marburg, Germany
| | - Rudolf A Jörres
- Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, University Hospital, LMU Munich, Comprehensive Pneumology Center Munich (CPC-M), member of the DZL, Munich, Germany
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Laufer B, Krueger-Ziolek S, Docherty PD, Hoeflinger F, Reindl L, Moeller K. An alternative way to measure respiration induced changes of circumferences: a pilot study. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2020; 2020:4632-4635. [PMID: 33019026 DOI: 10.1109/embc44109.2020.9175578] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Various measurement systems can be used to obtain dynamic circumferences of the human upper body, but each of these systems has disadvantages. In this feasibility study we introduce a non-invasive and wearable thoracic belt to measure dynamic changes of circumferences of thorax or abdomen. To evaluate this approach, five subjects undertook various breaths of disparate tidal volumes, which were measured by the belt and simultaneously by a motion capture system which provided a reference metric.The results of the belt concurred with the reference system. A coefficient of determination (adjusted R2) of 0.99 and a mean squared error of less than 0.87 mm2 showed that the belt is capable of measuring changes accurately and a couple of respiratory parameters, such as the respiratory rate, can be obtained.Clinical Relevance-The introduced system links surface motions of the upper body with the underlying respiratory mechanics. Thus it provides some respiratory parameters without the disadvantages of a facemask or a mouthpiece. The system could allow the analysis of breathing status in some clinical applications and could be used for low-cost monitoring in homecare or to analyse respiratory parameters during sports.
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Preisser AM, Schlemmer K, Herold R, Laqmani A, Terschüren C, Harth V. Relations between vital capacity, CO diffusion capacity and computed tomographic findings of former asbestos-exposed patients: a cross-sectional study. J Occup Med Toxicol 2020; 15:21. [PMID: 32625240 PMCID: PMC7328276 DOI: 10.1186/s12995-020-00272-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 06/21/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Asbestos-related lung diseases are one of the leading diagnoses of the recognized occupational diseases in Germany, both in terms of their number and their socio-economic costs. The aim of this study was to determine whether pulmonary function testing (spirometry and CO diffusion measurement (DLCO)) and computed tomography of the thorax (TCT) are relevant for the early detection of asbestos-related pleural and pulmonary fibrosis and the assessment of the functional deficiency. METHODS The records of 111 formerly asbestos-exposed workers who had been examined at the Institute for Occupational and Maritime Medicine, Hamburg, Germany, with data on spirometry, DLCO and TCT were reviewed. Workers with substantial comorbidities (cardiac, malignant, silicosis) and/or pulmonary emphysema (pulmonary hyperinflation and/or TCT findings), which, like asbestosis, can lead to a diffusion disorder were excluded. The remaining data of 41 male workers (mean 69.8 years ±6.9) were evaluated. The TCT changes were coded according to the International Classification of High-resolution Computed Tomography for Occupational and Environmental Respiratory Diseases (ICOERD) by radiologists and ICOERD-scores for pleural and pulmonary changes were determined. Correlations (ρ), Cohens κ and accuracy were calculated. RESULTS In all 41 males the vital capacity (VC in % of the predicted value (% pred.)) showed only minor limitations (mean 96.5 ± 18.0%). The DLCO (in % pred.) was slightly reduced (mean 76.4 ± 16.6%; median 80.1%); the alveolar volume related value (DLCO/VA) was within reference value (mean 102 ± 22%). In the TCT of 27 workers pleural asbestos-related findings were diagnosed whereof 24 were classified as pulmonary fibrosis (only one case with honey-combing). Statistical analysis provided low correlations of VC (ρ = - 0.12) and moderate correlations of DLCO (- 0.25) with pleural plaque extension. The ICOERD-score for pulmonary fibrosis correlated low with VC (0.10) and moderate with DLCO (- 0.23); DLCO had the highest accuracy with 73.2% and Cohens κ with 0.45. DLCO/VA showed no correlations to the ICOERD-score. The newly developed score, which takes into account the diffuse pleural thickening, shows a moderate correlation with the DLCO (ρ = - 0.35, p < 0.05). CONCLUSIONS In formerly asbestos-exposed workers, lung function alterations and TCT findings correlated moderate, but significant using DLCO and ICOERD-score considering parenchymal ligaments, subpleural curvilinear lines, round atelectases and pleural effusion in addition to pleural plaque extension. DLCO also showed highest accuracy in regard to pulmonary findings. However, VC showed only weaker correlations although being well established for early detection. Besides TCT the determination of both lung function parameters (VC and DLCO) is mandatory for the early detection and assessment of functional deficiencies in workers formerly exposed to asbestos.
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Affiliation(s)
- Alexandra Marita Preisser
- Institute for Occupational and Maritime Medicine (ZfAM), University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Katja Schlemmer
- Institute for Occupational and Maritime Medicine (ZfAM), University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Robert Herold
- Institute for Occupational and Maritime Medicine (ZfAM), University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Azien Laqmani
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Claudia Terschüren
- Institute for Occupational and Maritime Medicine (ZfAM), University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Volker Harth
- Institute for Occupational and Maritime Medicine (ZfAM), University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
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Ivanova O, Khosa C, Bakuli A, Bhatt N, Massango I, Jani I, Saathoff E, Hoelscher M, Rachow A. Lung Function Testing and Prediction Equations in Adult Population from Maputo, Mozambique. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17124535. [PMID: 32599726 PMCID: PMC7344554 DOI: 10.3390/ijerph17124535] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 06/16/2020] [Accepted: 06/22/2020] [Indexed: 12/15/2022]
Abstract
Background: Local spirometric prediction equations are of great importance for interpreting lung function results and deciding on the management strategies for respiratory patients, yet available data from African countries are scarce. The aim of this study was to collect lung function data using spirometry in healthy adults living in Maputo, Mozambique and to derive first spirometric prediction equations for this population. Methods: We applied a cross-sectional study design. Participants, who met the inclusion criteria, underwent a short interview, anthropometric measurements, and lung function testing. Different modelling approaches were followed for generating new, Mozambican, prediction equations and for comparison with the Global Lung Initiative (GLI) and South African equations. The pulmonary function performance of participants was assessed against the different reference standards. Results: A total of 212 males and females were recruited, from whom 155 usable spirometry results were obtained. The mean age of participants was 35.20 years (SD 10.99) and 93 of 155 (59.35%) were females. The predicted values for forced vital capacity (FVC), forced expiratory volume in 1 s (FEV1) and the FEV1/FVC ratio based on the Mozambican equations were lower than the South African—and the GLI-based predictions. Conclusions: This study provides first data on pulmonary function in healthy Mozambican adults and describes how they compare to GLI and South African reference values for spirometry.
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Affiliation(s)
- Olena Ivanova
- Division of Infectious Diseases and Tropical Medicine, Medical Centre of the University of Munich (LMU), 80802 Munich, Germany; (A.B.); (E.S.); (M.H.); (A.R.)
- Correspondence:
| | - Celso Khosa
- Instituto Nacional de Saúde (INS), 3943 Maputo, Mozambique; (C.K.); (N.B.); (I.M.); (I.J.)
- Center for International Health—CIH LMU, 80802 Munich, Germany
| | - Abhishek Bakuli
- Division of Infectious Diseases and Tropical Medicine, Medical Centre of the University of Munich (LMU), 80802 Munich, Germany; (A.B.); (E.S.); (M.H.); (A.R.)
| | - Nilesh Bhatt
- Instituto Nacional de Saúde (INS), 3943 Maputo, Mozambique; (C.K.); (N.B.); (I.M.); (I.J.)
| | - Isabel Massango
- Instituto Nacional de Saúde (INS), 3943 Maputo, Mozambique; (C.K.); (N.B.); (I.M.); (I.J.)
| | - Ilesh Jani
- Instituto Nacional de Saúde (INS), 3943 Maputo, Mozambique; (C.K.); (N.B.); (I.M.); (I.J.)
| | - Elmar Saathoff
- Division of Infectious Diseases and Tropical Medicine, Medical Centre of the University of Munich (LMU), 80802 Munich, Germany; (A.B.); (E.S.); (M.H.); (A.R.)
| | - Michael Hoelscher
- Division of Infectious Diseases and Tropical Medicine, Medical Centre of the University of Munich (LMU), 80802 Munich, Germany; (A.B.); (E.S.); (M.H.); (A.R.)
- Center for International Health—CIH LMU, 80802 Munich, Germany
- German Centre for Infection Research (DZIF), Partner Site, 80802 Munich, Germany
| | - Andrea Rachow
- Division of Infectious Diseases and Tropical Medicine, Medical Centre of the University of Munich (LMU), 80802 Munich, Germany; (A.B.); (E.S.); (M.H.); (A.R.)
- Center for International Health—CIH LMU, 80802 Munich, Germany
- German Centre for Infection Research (DZIF), Partner Site, 80802 Munich, Germany
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Tipparaju VV, Xian X, Bridgeman D, Wang D, Tsow F, Forzani E, Tao N. Reliable Breathing Tracking with Wearable Mask Device. IEEE SENSORS JOURNAL 2020; 20:5510-5518. [PMID: 33746622 PMCID: PMC7977629 DOI: 10.1109/jsen.2020.2969635] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Breathing tracking is critical for the assessment of lung functions, exercise physiologies, and energy expenditure. Conventional methods require using a face mask or mouthpiece that is connected to a stationary equipment through a tube, restricting the location, movement, or even the posture. To obtain accurate breathing physiology parameters that represent the true state of the patient during different scenarios, a wearable technology that has less intervention to patient's activities in free-living conditions is highly preferred. Here, we propose a miniaturized, reliable, and wide-dynamic ranged flow sensing technology that is immune to orientation, movement, and noise. As far as we know, this is the first work of introducing a fully integrated mask device focusing on breath tracking in free-living conditions. There are two key challenges for achieving this goal: miniaturized flow sensing and motion-induced artifacts elimination. To address these challenges, we come up with two technical innovations: 1) in hardware wise, we have designed an integrated flow sensing technique based on differential pressure Pneumotach approach and motion sensing; 2) in software wise, we have developed comprehensive algorithms based baseline tracking and orientation and motion compensation. The effectiveness of the proposed technology has been proven by the experiments. Experimental results from simulator and real breath conditions show high correlation (R2 = 0.9994 and 0.9964 respectively) and mean error within 2.5% for Minute Volume (VE), when compared to values computed from reference methods. These results show that the proposed method is accurate and reliable to track the key breath parameters in free-living conditions.
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Affiliation(s)
- Vishal Varan Tipparaju
- Center for Bioelectronics & Biosensors, the Biodesign Institute, Arizona State University, Tempe, Arizona 85287, USA
| | - Xiaojun Xian
- Center for Bioelectronics & Biosensors, the Biodesign Institute, Arizona State University, Tempe, Arizona 85287, USA
| | - Devon Bridgeman
- Center for Bioelectronics & Biosensors, the Biodesign Institute, Arizona State University, Tempe, Arizona 85287, USA
| | - Di Wang
- Center for Bioelectronics & Biosensors, the Biodesign Institute, Arizona State University, Tempe, Arizona 85287, USA
| | - Francis Tsow
- Center for Bioelectronics & Biosensors, the Biodesign Institute, Arizona State University, Tempe, Arizona 85287, USA
| | - Erica Forzani
- Center for Bioelectronics & Biosensors, the Biodesign Institute, Arizona State University, Tempe, Arizona 85287, USA
| | - Nongjian Tao
- Center for Bioelectronics & Biosensors, the Biodesign Institute, Arizona State University, Tempe, Arizona 85287, USA
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Khosa C, Bhatt N, Massango I, Azam K, Saathoff E, Bakuli A, Riess F, Ivanova O, Hoelscher M, Rachow A. Development of chronic lung impairment in Mozambican TB patients and associated risks. BMC Pulm Med 2020; 20:127. [PMID: 32381002 PMCID: PMC7203866 DOI: 10.1186/s12890-020-1167-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 04/27/2020] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Pulmonary tuberculosis (PTB) is frequently associated with chronic respiratory impairment despite microbiological cure. There are only a few clinical research studies that describe the course, type and severity as well as associated risk factors for lung impairment (LI) in TB patients. METHODS A prospective cohort study was conducted at TB Research Clinic of Instituto Nacional de Saúde in Mavalane, Maputo, from June 2014 to June 2016. PTB patients were prospectively enrolled and followed for 52 weeks after TB diagnosis. Lung function was evaluated by spirometry at 8, 26 and 52 weeks after TB treatment initiation, and spirometric values of below the lower limit of normality were considered as LI. Descriptive statistical analysis was performed to summarize the proportion of patients with different lung outcomes at week 52, including type and severity of LI. Risk factors were analysed using multinomial regression analysis. RESULTS A total of 69 PTB patients were enrolled, of which 62 had a valid spirometry result at week 52 after TB treatment start. At week 8, 26 and 52, the proportion of patients with LI was 78, 68.9 and 64.5%, respectively, and 35.5% had moderate or severe LI at week 52. The majority of patients with LI suffered from pulmonary restriction. Female sex, low haemoglobin and heavy smoking were significantly associated with LI. CONCLUSION Moderate or severe LI can be observed in a third of cured TB patients. Further research is urgently needed to gain deeper insight into the characteristics of post TB LI, the causal pathways and potential treatment strategies.
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Affiliation(s)
- Celso Khosa
- Instituto Nacional de Saúde (INS), Maputo, Mozambique. .,Center for International Health - CIHLMU, Munich, Germany.
| | - Nilesh Bhatt
- Instituto Nacional de Saúde (INS), Maputo, Mozambique
| | | | - Khalide Azam
- Instituto Nacional de Saúde (INS), Maputo, Mozambique.,Center for International Health - CIHLMU, Munich, Germany
| | - Elmar Saathoff
- Division of Infectious Diseases and Tropical Medicine, University Hospital, LMU Munich, Munich, Germany.,German Centre for Infection Research (DZIF), partner site, Munich, Germany
| | - Abhishek Bakuli
- Division of Infectious Diseases and Tropical Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Friedrich Riess
- Division of Infectious Diseases and Tropical Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Olena Ivanova
- Division of Infectious Diseases and Tropical Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Michael Hoelscher
- Center for International Health - CIHLMU, Munich, Germany.,Division of Infectious Diseases and Tropical Medicine, University Hospital, LMU Munich, Munich, Germany.,German Centre for Infection Research (DZIF), partner site, Munich, Germany
| | - Andrea Rachow
- Center for International Health - CIHLMU, Munich, Germany.,Division of Infectious Diseases and Tropical Medicine, University Hospital, LMU Munich, Munich, Germany.,German Centre for Infection Research (DZIF), partner site, Munich, Germany
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Walter MC, Wenninger S, Thiele S, Stauber J, Hiebeler M, Greckl E, Stahl K, Pechmann A, Lochmüller H, Kirschner J, Schoser B. Safety and Treatment Effects of Nusinersen in Longstanding Adult 5q-SMA Type 3 - A Prospective Observational Study. J Neuromuscul Dis 2020; 6:453-465. [PMID: 31594243 PMCID: PMC6918909 DOI: 10.3233/jnd-190416] [Citation(s) in RCA: 128] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Objective: Spinal muscular atrophy (SMA) is a progressive autosomal recessive motor neuron disease caused by loss of the SMN1 gene. Based on randomized clinical trials in children with SMA type 1 and 2, Nusinersen has been approved as the first treatment for all types of SMA, including adults with SMA type 3. Methods: We evaluated the safety and treatment effects of Nusinersen in longstanding adult 5q-SMA type 3. Patients were treated with intrathecal loading doses at day 1, 14, 28 and 63, followed by maintenance dose every four months up to 300 days. We monitored the patients within SMArtCARE, a prospective open-label outcome study for disease progression, side effects and treatment efficacy, encompassing clinical examination including MRC sum score, vital capacity in sitting position (VC, VC % pred.), ALS Functional Rating Scale (ALS-FRS), 6-Minute-Walk-Test (6MWT), Revised Upper Limb Module (RULM), and Hammersmith Functional Rating Scale (HFMSE). We also measured biomarkers in the spinal fluid (phosphorylated neurofilament heavy chain pNFH, neuron-specific enolase NSE, proteins, ß-Amyloid 1–40, ß-Amyloid 1–42, tau and phospho-tau) and creatine kinase (CK). Assessments were performed at baseline, day 63 (V4), day 180 (V5) and day 300 (V6). For statistical analysis, we compared baseline to V4, V5 and V6, using the paired sample t-test. When there were significant differences, we added cohen's d and effect size r for evaluation of clinical meaningfulness. Results: 19 patients were included, 17 of them have completed the observation period of 10 months (day 300, V6). Patients were aged 18 to 59 years with disease duration ranging from 6 to 53 years. Except for the 6MWT, the RULM and the peak cough flow, there were no relevant significant changes in all functional outcome assessments at V4, V5 or V6, compared to baseline. For the 6MWT, there was a statistically significant improvement at visit 5 and at visit 6. RULM-score increased significantly at V6, and peak cough flow at visit 5. In biomarker studies, there was a significant decline in NSE and pTAU as well as a slight increase in proteins. In safety analysis, overall, Nusinersen applications were well tolerated. Eleven patients reported adverse events that were related to the study procedures, comprising back pain in seven patients and post-lumbar-puncture headache following intrathecal administration in four patients. Post-lumbar-puncture headache was reported in three females and one male, in total eleven times of 108 punctures (10%). No serious adverse events occurred. Conclusions: This prospective observational study indicates a mild treatment effect in adults with long-standing SMA3 after 10 months of treatment with Nusinersen, which had never occurred in the natural history of the disease. In our cohort, the most significant outcome measures were the 6MWT with statistically significant changes after day 180 and day 300, RULM after day 300 and peak cough flow after day 180.
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Affiliation(s)
- Maggie C Walter
- Friedrich-Baur-Institute, Department of Neurology, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Stephan Wenninger
- Friedrich-Baur-Institute, Department of Neurology, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Simone Thiele
- Friedrich-Baur-Institute, Department of Neurology, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Julia Stauber
- Friedrich-Baur-Institute, Department of Neurology, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Miriam Hiebeler
- Friedrich-Baur-Institute, Department of Neurology, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Eva Greckl
- Friedrich-Baur-Institute, Department of Neurology, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Kristina Stahl
- Friedrich-Baur-Institute, Department of Neurology, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Astrid Pechmann
- Department of Neuropediatrics and Muscle Disorders, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Hanns Lochmüller
- Department of Neuropediatrics and Muscle Disorders, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany; and Children's Hospital of Eastern Ontario Research Institute; Division of Neurology, Department of Medicine, The Ottawa Hospital; and Brain and Mind Research Institute, University of Ottawa, Ottawa, Canada
| | - Janbernd Kirschner
- Department of Neuropediatrics and Muscle Disorders, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Department of Neuropaediatrics, Rheinische Friedrich-Wilhelms-University Bonn, Bonn, Germany
| | - Benedikt Schoser
- Friedrich-Baur-Institute, Department of Neurology, Ludwig-Maximilians-University of Munich, Munich, Germany
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[Lung function in the German National Cohort: methods and initial results]. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 2020; 63:322-331. [PMID: 32078705 DOI: 10.1007/s00103-020-03102-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND A nationwide assessment of the respiratory status on the basis of standardized lung function measurements has so far not been available in Germany. The present work describes the lung function tests in the German National Cohort (GNC) and presents initial results based on the GNC Midterm Baseline Dataset. MATERIAL AND METHODS The assessment of lung function in the GNC comprised spirometry (level 1) and the determination of exhaled nitric oxide (FeNO, level 2). Our quality assurance concept included regular training of lung function test procedures at various GNC sites, interim evaluations of test quality, as well as regular calibration/measurement checks of test equipment. For spirometry, we established a stepwise procedure for offline quality control based on raw flow volume curves. RESULTS In the present dataset (n = 101,734), spirometry was available for 86,893 study participants and FeNO was available for 15,228 participants. The average (±SD) FEV1 Z score (according to GLI 2012) was -0.321 ± 1.047, the FVC Z score was -0.153 ± 0.941, and the FEV1/FVC Z score was -0.337 ± 0.901. The difference in FEV1/FVC between current smokers and never-smokers increased with age. The average FeNO was 14.2 ÷ 2.0 ppb. Current smoking reduced FeNO levels by 43%, whereas respiratory allergy increased FeNO levels by 16% in nonsmokers. DISCUSSION The results of spirometry and the FeNO measurements are in the expected range with regard to their distributions and correlates. The GNC provides a valuable basis for future investigations of respiratory health and its determinants as well as research into the prevention of respiratory diseases in Germany.
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Reichl S, Weilbach F, Mehrholz J. Implementation of a gait center training to improve walking ability and vital parameters in inpatient neurological rehabilitation- a cohort study. J Neuroeng Rehabil 2020; 17:38. [PMID: 32131857 PMCID: PMC7055071 DOI: 10.1186/s12984-020-00669-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 02/27/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Many studies showed that robot-assisted gait training might improve walking of patients after stroke. The question remains whether patients with other neurological diagnoses can improve their ability to walk by training in a gait center. Aim of the present study was therefore to investigate the effects of a gait center training in inpatient neurological rehabilitation on walking ability. METHODS We implemented a gait center training in addition to individual inpatient rehabilitation. Our primary outcome was walking ability based on the Functional Ambulation Categories (FAC). Our secondary outcomes were vital capacity and blood pressure. We predefined subgroups of patients with ischemic and hemorrhagic stroke and critical illness myopathy (CIM) and polyneuropathy (CIP). RESULTS We included 780 patients from our inpatient rehabilitation center in our cohort study. We analyzed 329 patients with ischemic, 131 patients with hemorrhagic stroke and 74 patients with CIP/ CIM. A large number of patients were able to improve their ability to walk. At the end of rehabilitation, patients with ischemic stroke and FAC 3 = increased theirFAC scores by 5%, FAC 4 = 4% and FAC 5 = 7%. Patients with hemorrhagic stroke and FAC 3 = increased by 5%, FAC 4 = 11% and FAC 5 = 9% and patients with CIP/CIM increased by FAC 3 = 3%, FAC 4 = 22% and FAC 5 = 26%. The largest improvement in walking ability during rehabilitation had patients with a FAC = 1 at baseline who improved by a median of 1.4 FAC points (p < 0.001). After adjusting for the number of gait training sessions, the largest improvement in walking ability during rehabilitation had patients with a FAC = 0 at baseline who improved by 1.8 FAC points (p < 0.001). CONCLUSIONS Implementation of an additional gait center training may significantly improve walking ability in neurological rehabilitation.
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Affiliation(s)
- Stephanie Reichl
- Klinik Bavaria Bad Kissingen, Von-der-Tann-Straße 18- 22, 97688, Bad Kissingen, Germany
| | - Franz Weilbach
- Klinik Bavaria Bad Kissingen, Von-der-Tann-Straße 18- 22, 97688, Bad Kissingen, Germany
| | - Jan Mehrholz
- Department of Public Health, Dresden Medical School, Technical University Dresden, 01062, Dresden, Germany. .,Wissenschaftliches Institut, Private Europäische Medizinische Akademie der Klinik Bavaria in Kreischa GmbH, An der Wolfsschlucht 1-2, 01731, Kreischa, Germany.
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Laufer B, Krueger-Ziolek S, Docherty PD, Hoeflinger F, Reindl L, Moeller K. Tidal volume via circumferences of the upper body: a pilot study. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2020; 2019:3559-3562. [PMID: 31946647 DOI: 10.1109/embc.2019.8857688] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The gold standard for tidal volume measurement is spirometry. Based on retrospective data, this study evaluates different geometric lung models in their ability to deliver accurate tidal volumes from changes in thoracic and abdominal circumference. The geometric lung models showed good coefficients of determination (adjusted R2 >0.97) compared to the tidal volumes measured by a body plethysmograph. Tidal volumes obtained by circumference changes might be used in surveillance systems to analyze respiration without a face mask.
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Dreher M, Neuzeret PC, Windisch W, Martens D, Hoheisel G, Gröschel A, Woehrle H, Fetsch T, Graml A, Köhnlein T. Prevalence Of Chronic Hypercapnia In Severe Chronic Obstructive Pulmonary Disease: Data From The HOmeVent Registry. Int J Chron Obstruct Pulmon Dis 2019; 14:2377-2384. [PMID: 31695357 PMCID: PMC6805244 DOI: 10.2147/copd.s222803] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 09/23/2019] [Indexed: 12/12/2022] Open
Abstract
Background Non-invasive ventilation (NIV) has been shown to improve survival and quality of life in COPD patients with chronic hypercapnic respiratory failure. However, the proportion of COPD patients with chronic hypercapnia is not yet known and clinical data enabling better identification of patients are scarce. The HOmeVent registry was initiated to determine the prevalence of chronic hypercapnia in COPD in an outpatient setting and to evaluate the predictors of hypercapnia. Methods HOmeVent is a multicenter, prospective, observational, non-interventional patient registry that includes COPD patients in GOLD stage 3 or 4. Eligible patients were identified and enrolled in an outpatient setting during routine clinic visits. Assessments included blood gas analyses, pulmonary function testing and quality of life assessment. Results Ten outpatient clinics in Germany enrolled 231 COPD patients in the registry (135 in GOLD stage 3 (58%) and 96 in GOLD stage 4 (42%)). Arterial carbon dioxide pressure (PaCO2) was ≥45 mmHg in 58 patients (25%); of these, 20 (9%) had PaCO2 ≥50 mmHg. The prevalence of hypercapnia at both cut-off values was numerically higher for patients in GOLD stage 4 versus 3. An increased body mass index, a decreased forced vital capacity and an increased bicarbonate level were significant independent predictors of hypercapnia. The proportion of patients who received NIV was 6% overall and 22% of those with hypercapnia. Conclusion A relevant proportion of COPD patients in GOLD stage 3 and 4 exhibits chronic hypercapnia and might, therefore, be candidates for long-term domiciliary NIV treatment.
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Affiliation(s)
- Michael Dreher
- Department of Pneumology and Intensive Care Medicine, University Hospital Aachen, Aachen, Germany
| | | | - Wolfram Windisch
- Department of Pneumology, Cologne Merheim Hospital, Kliniken Der Stadt Köln gGmbH, Witten/Herdecke University, Cologne, Germany
| | | | | | | | - Holger Woehrle
- Sleep and Ventilation Center Blaubeuren, Respiratory Center Ulm, Ulm, Germany
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Alter P, Mayerhofer BA, Kahnert K, Watz H, Waschki B, Andreas S, Biertz F, Bals R, Vogelmeier CF, Jörres RA. Prevalence of cardiac comorbidities, and their underdetection and contribution to exertional symptoms in COPD: results from the COSYCONET cohort. Int J Chron Obstruct Pulmon Dis 2019; 14:2163-2172. [PMID: 31571852 PMCID: PMC6759215 DOI: 10.2147/copd.s209343] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 07/10/2019] [Indexed: 12/21/2022] Open
Abstract
Background A substantial prevalence of cardiovascular disease is known for COPD, but detection of its presence, relationship to functional findings and contribution to symptoms remains challenging. The present analysis focusses on the cardiovascular contribution to COPD symptoms and their relationship to the patients’ diagnostic status, medication and echocardiographic findings. Methods Patients from the COPD cohort COSYCONET with data on lung function, including FEV1, residual volume/total lung capacity (RV/TLC) ratio, diffusing capacity TLCO, and echocardiographic data on left ventricular ejection fraction (LVEF) and end-diastolic diameter (LVEDD), medical history, medication, modified British Medical Research Council dyspnea scale (mMRC) and Saint Georges Respiratory Questionnaire (SGRQ) were analyzed. Results A total of 1591 patients (GOLD 0–4: n=230/126/614/498/123) fulfilled the inclusion criteria. Ischemic heart disease, myocardial infarction or heart failure were reported in 289 patients (18.2%); 860 patients (54%) received at least one cardiovascular medication, with more than one in many patients. LVEF<50% or LVEDD>56 mm was found in 204 patients (12.8%), of whom 74 (36.3%) had neither a cardiovascular history nor medication. Among 948 patients (59.6%) without isolated hypertension, there were 21/55 (38.2%) patients with LVEF<50% and 47/88 (53.4%) with LVEDD>56 mm, who lacked both a cardiac diagnosis and medication. LVEDD and LVEF were linked to medical history; LVEDD was dependent on RV/TLC and LVEF on FEV1. Exertional COPD symptoms were best described by mMRC and the SGRQ activity score. Beyond lung function, an independent link from LVEDD on symptoms was revealed. Conclusion A remarkable proportion of patients with suspicious echocardiographic findings were undiagnosed and untreated, implying an increased risk for an unfavorable prognosis. Cardiac size and function were dependent on lung function and only partially linked to cardiovascular history. Although the contribution of LV size to COPD symptoms was small compared to lung function, it was detectable irrespective of all other influencing factors. However, only the mMRC and SGRQ activity component were found to be suitable for this purpose.
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Affiliation(s)
- Peter Alter
- Department of Medicine, Pulmonary and Critical Care Medicine, Philipps University of Marburg (UMR), Member of the German Center for Lung Research (DZL), Marburg, Germany
| | - Barbara A Mayerhofer
- Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, University Hospital, LMU Munich, Comprehensive Pneumology Center Munich (CPC-M), Member of the Center for Lung Research (DZL), Munich, Germany
| | - Kathrin Kahnert
- Department of Internal Medicine V, University Hospital, LMU Munich, Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Henrik Watz
- Pulmonary Research Institute at Lungen Clinic Grosshansdorf, Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Grosshansdorf, Germany
| | - Benjamin Waschki
- Department of Pneumology, LungenClinic Grosshansdorf, Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Grosshansdorf, Germany.,Department of General and Interventional Cardiology, University Heart Center, Hamburg, Germany
| | - Stefan Andreas
- Department of Cardiology and Pneumology, University Medical Center, Goettingen, Germany.,Lung Clinic, Immenhausen, Germany
| | - Frank Biertz
- Institute for Biostatistics, Center for Biometry, Medical Informatics and Medical Technology, Hannover Medical School, Hannover, Germany
| | - Robert Bals
- Department of Internal Medicine V - Pulmonology, Allergology, Intensive Care Medicine, Saarland University Hospital, Homburg, Germany
| | - Claus F Vogelmeier
- Department of Medicine, Pulmonary and Critical Care Medicine, Philipps University of Marburg (UMR), Member of the German Center for Lung Research (DZL), Marburg, Germany
| | - Rudolf A Jörres
- Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, University Hospital, LMU Munich, Comprehensive Pneumology Center Munich (CPC-M), Member of the Center for Lung Research (DZL), Munich, Germany
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Kellerer C, Jankrift N, Jörres RA, Klütsch K, Wagenpfeil S, Linde K, Schneider A. Diagnostic accuracy of capnovolumetry for the identification of airway obstruction - results of a diagnostic study in ambulatory care. Respir Res 2019; 20:92. [PMID: 31092254 PMCID: PMC6521502 DOI: 10.1186/s12931-019-1067-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 05/06/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND One of the known weaknesses of spirometry is its dependence on patients' cooperation, which can only partially be alleviated by educational efforts. Therefore, procedures less dependent on cooperation might be of value in clinical practice. We investigated the diagnostic accuracy of ultrasound-based capnovolumetry for the identification of airway obstruction. METHODS Consecutive patients from a pulmonary outpatient clinic were included in the diagnostic study. As reference standard, the presence of airway obstruction was evaluated via spirometry and bodyplethysmography. Capnovolumetry was performed as index test with an ultrasound spirometer providing a surrogate measure of exhaled carbon dioxide. Receiver operating characteristic (ROC) analysis was performed using the ratio of slopes of expiratory phases 3 and 2 (s3/s2) ≥ 0.10 as primary capnovolumetric parameter for the recognition of airway obstruction. Logistic regression was performed as secondary analysis to identify further useful capnovolumetric parameters. The diagnostic potential of capnovolumetry to identify more severe degrees of airway obstruction was evaluated additionally. RESULTS Of 1400 patients recruited, 1287 patients were included into the analysis. Airway obstruction was present in 29% of patients. The area under the ROC-curve (AUC) of s3/s2 was 0.678 (95% CI 0.645, 0.710); sensitivity of s3/s2 ≥ 0.10 was 47.7 (95% CI 42.7, 52.8)%, specificity 79.0 (95% CI 76.3, 81.6)%. When combining this parameter with three other parameters derived from regression analysis (ratio area/volume phase 3, slope phase 3, volume phase 2), an AUC of 0.772 (95% CI 0.743, 0.801) was obtained. For severe airway obstruction (FEV1 ≤ 50% predicted) sensitivity of s3/s2 ≥ 0.10 was 75.9 (95% CI 67.1, 83.0)%, specificity 75.8 (95% CI 73.3, 78.1)%; for very severe airway obstruction (FEV1 ≤ 30% predicted) sensitivity was 86.7 (95% CI 70.3, 94.7)%, specificity 72.8 (95% CI 70.3, 75.2)%. Sensitivities increased and specificities decreased considerably when the combined capnovolumetric score was used as index test. CONCLUSIONS Capnovolumetry by way of an ultrasound spirometer had a statistically significant albeit moderate potential for the recognition of airway obstruction in a heterogeneous population of patients typically found in clinical practice. Diagnostic accuracy of the capnovolumetric device increased with the severity of airway obstruction. TRIAL REGISTRATION The study is registered under DRKS00013935 at German Clinical Trials Register (DRKS).
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Affiliation(s)
- Christina Kellerer
- TUM School of Medicine, Institute of General Practice and Health Services Research, Technical University of Munich, Orleansstraße 47, 81667 Munich, Germany
| | - Neele Jankrift
- TUM School of Medicine, Institute of General Practice and Health Services Research, Technical University of Munich, Orleansstraße 47, 81667 Munich, Germany
| | - Rudolf A. Jörres
- Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Klaus Klütsch
- Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Stefan Wagenpfeil
- Institute for Medical Biometry, Epidemiology and Medical Informatics (IMBEI), Saarland University, Homburg, Germany
| | - Klaus Linde
- TUM School of Medicine, Institute of General Practice and Health Services Research, Technical University of Munich, Orleansstraße 47, 81667 Munich, Germany
| | - Antonius Schneider
- TUM School of Medicine, Institute of General Practice and Health Services Research, Technical University of Munich, Orleansstraße 47, 81667 Munich, Germany
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Preisser AM, McDonough RV, Harth V. The physical performance of workers on offshore wind energy platforms: is pre-employment fitness testing necessary and fair? Int Arch Occup Environ Health 2019; 92:513-522. [PMID: 30506444 PMCID: PMC6435631 DOI: 10.1007/s00420-018-1385-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 11/22/2018] [Indexed: 01/25/2023]
Abstract
PURPOSE Workers on offshore wind turbine installations face a variety of physical and psychological challenges. To prevent potentially dangerous situations or incidents, guidelines for the physical aptitude testing of offshore employees in Germany and other European countries have been developed. However, these criteria have not been previously empirically tested for validity. Although an important component of occupational health and safety, such aptitude testing should not lead to the unjustified exclusion of potential employees. METHODS Heart rate (HR) and oxygen consumption ([Formula: see text]) measurements of 23 male offshore employees and trainers were taken during typical field activities, within the framework of mandatory training exercises. These were evaluated in relation to the individual maximum values of the subjects, determined by cycle spiroergometry. RESULTS For the training modules, average HR and [Formula: see text] values of approximately 40% and 33-48% of the maximum values, respectively, were found. Furthermore, 65% of the participants achieved average HR values that exceeded 30% of their individual heart rate reserve and 45% had [Formula: see text] values above 35% of their individual [Formula: see text]. CONCLUSION Our preliminary results show that offshore work is a form of heavy physical labor, thereby justifying the criteria put forth in the various fitness to work guidelines. We propose that more in-depth investigations should be performed, incorporating task-specific fitness testing as well as higher level aspects of work safety and security, including effective communication skills and teamwork. We also recommend a re-evaluation of the current limits for physical work provided in the literature. The results of such studies could then be applied to other aptitude tests, thereby strengthening the evidence for such measures.
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Affiliation(s)
- Alexandra M Preisser
- Institute for Occupational and Maritime Medicine (ZfAM), University Medical Center Hamburg-Eppendorf, Seewartenstrasse 10, 20459, Hamburg, Germany.
| | - Rosalie V McDonough
- Institute for Occupational and Maritime Medicine (ZfAM), University Medical Center Hamburg-Eppendorf, Seewartenstrasse 10, 20459, Hamburg, Germany
| | - Volker Harth
- Institute for Occupational and Maritime Medicine (ZfAM), University Medical Center Hamburg-Eppendorf, Seewartenstrasse 10, 20459, Hamburg, Germany
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Lungenbeteiligung bei Herzkrankheiten. ZEITSCHRIFT FUR HERZ THORAX UND GEFASSCHIRURGIE 2019. [DOI: 10.1007/s00398-019-0296-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Alter P, Watz H, Kahnert K, Rabe KF, Biertz F, Fischer R, Jung P, Graf J, Bals R, Vogelmeier CF, Jörres RA. Effects of airway obstruction and hyperinflation on electrocardiographic axes in COPD. Respir Res 2019; 20:61. [PMID: 30917825 PMCID: PMC6437876 DOI: 10.1186/s12931-019-1025-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 03/12/2019] [Indexed: 12/14/2022] Open
Abstract
Background COPD influences cardiac function and morphology. Changes of the electrical heart axes have been largely attributed to a supposed increased right heart load in the past, whereas a potential involvement of the left heart has not been sufficiently addressed. It is not known to which extent these alterations are due to changes in lung function parameters. We therefore quantified the relationship between airway obstruction, lung hyperinflation, several echo- and electrocardiographic parameters on the orientation of the electrocardiographic (ECG) P, QRS and T wave axis in COPD. Methods Data from the COPD cohort COSYCONET were analyzed, using forced expiratory volume in 1 s (FEV1), functional residual capacity (FRC), left ventricular (LV) mass, and ECG data. Results One thousand, one hundred and ninety-five patients fulfilled the inclusion criteria (mean ± SD age: 63.9 ± 8.4 years; GOLD 0–4: 175/107/468/363/82). Left ventricular (LV) mass decreased from GOLD grades 1–4 (p = 0.002), whereas no differences in right ventricular wall thickness were observed. All three ECG axes were significantly associated with FEV1 and FRC. The QRS axes according to GOLD grades 0–4 were (mean ± SD): 26.2° ± 37.5°, 27.0° ± 37.7°, 31.7° ± 42.5°, 46.6° ± 42.2°, 47.4° ± 49.4°. Effects of lung function resulted in a clockwise rotation of the axes by 25°-30° in COPD with severe airway disease. There were additional associations with BMI, diastolic blood pressure, RR interval, QT duration and LV mass. Conclusion Significant clockwise rotations of the electrical axes as a function of airway obstruction and lung hyperinflation were shown. The changes are likely to result from both a change of the anatomical orientation of the heart within the thoracic cavity and a reduced LV mass in COPD. The influences on the electrical axes reach an extent that could bias the ECG interpretation. The magnitude of lung function impairment should be taken into account to uncover other cardiac disease and to prevent misdiagnosis. Electronic supplementary material The online version of this article (10.1186/s12931-019-1025-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Peter Alter
- Department of Medicine, Pulmonary and Critical Care Medicine, Philipps University of Marburg (UMR), Member of the German Center for Lung Research (DZL), Baldingerstrasse 1, 35033, Marburg, Germany.
| | - Henrik Watz
- Pulmonary Research Institute at LungenClinic Grosshansdorf, Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Grosshansdorf, Germany
| | - Kathrin Kahnert
- Department of Internal Medicine V, Ludwig Maximilians University (LMU), Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Klaus F Rabe
- Department of Internal Medicine, LungenClinic Grosshansdorf and Christian-Albrechts University, Kiel, Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Grosshansdorf, Germany
| | - Frank Biertz
- Institute for Biostatistics, Center for Biometry, Medical Informatics and Medical Technology, Hannover Medical School, Hannover, Germany
| | - Ronald Fischer
- Institute for Biostatistics, Center for Biometry, Medical Informatics and Medical Technology, Hannover Medical School, Hannover, Germany
| | | | - Jana Graf
- Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, Ludwig Maximilians University (LMU), Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Ziemssenstrasse 1, 80336, Munich, Germany
| | - Robert Bals
- Department of Internal Medicine V - Pulmonology, Allergology, Intensive Care Medicine, Saarland University Hospital, Homburg, Germany
| | - Claus F Vogelmeier
- Department of Medicine, Pulmonary and Critical Care Medicine, Philipps University of Marburg (UMR), Member of the German Center for Lung Research (DZL), Baldingerstrasse 1, 35033, Marburg, Germany
| | - Rudolf A Jörres
- Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, Ludwig Maximilians University (LMU), Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Ziemssenstrasse 1, 80336, Munich, Germany.
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50
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Powitz F. [Asthma - Update 2019]. MMW Fortschr Med 2019; 161:45-55. [PMID: 30912087 DOI: 10.1007/s15006-019-0010-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- Frank Powitz
- Pneumologie Elisenhof, Prielmayerstr. 3, D-80335, München, Deutschland.
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