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Dolmage TE, Majd S, Bradding P, Singh SJ, Green RH, Evans RA. Dynamic hyperinflation in patients with severe asthma compared to healthy adults. Pulmonology 2024; 30:78-81. [PMID: 37567815 DOI: 10.1016/j.pulmoe.2023.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 07/18/2023] [Accepted: 07/19/2023] [Indexed: 08/13/2023] Open
Affiliation(s)
- T E Dolmage
- Respiratory Diagnostics & Evaluation Services, West Park Healthcare Centre, Toronto, ON, Canada
| | - S Majd
- Centre for Exercise Rehabilitation Science, Leicester National Institute for Health Research Biomedical Research Centre - Respiratory, Glenfield Hospital, Leicester, UK; Department of Respiratory Sciences, University of Leicester, Leicester, UK
| | - P Bradding
- Centre for Exercise Rehabilitation Science, Leicester National Institute for Health Research Biomedical Research Centre - Respiratory, Glenfield Hospital, Leicester, UK; Department of Respiratory Sciences, University of Leicester, Leicester, UK; Department of Respiratory Medicine, Thoracic Surgery and Allergy, Glenfield Hospital, Leicester, UK
| | - S J Singh
- Centre for Exercise Rehabilitation Science, Leicester National Institute for Health Research Biomedical Research Centre - Respiratory, Glenfield Hospital, Leicester, UK; Department of Respiratory Sciences, University of Leicester, Leicester, UK; Department of Respiratory Medicine, Thoracic Surgery and Allergy, Glenfield Hospital, Leicester, UK
| | - R H Green
- Centre for Exercise Rehabilitation Science, Leicester National Institute for Health Research Biomedical Research Centre - Respiratory, Glenfield Hospital, Leicester, UK; Department of Respiratory Medicine, Thoracic Surgery and Allergy, Glenfield Hospital, Leicester, UK
| | - R A Evans
- Centre for Exercise Rehabilitation Science, Leicester National Institute for Health Research Biomedical Research Centre - Respiratory, Glenfield Hospital, Leicester, UK; Department of Respiratory Sciences, University of Leicester, Leicester, UK; Department of Respiratory Medicine, Thoracic Surgery and Allergy, Glenfield Hospital, Leicester, UK.
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2
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Cottini M, Lombardi C, Passalacqua G, Bagnasco D, Berti A, Comberiati P, Imeri G, Landi M, Heffler E. Small Airways: The “Silent Zone” of 2021 GINA Report? Front Med (Lausanne) 2022; 9:884679. [PMID: 35677830 PMCID: PMC9168121 DOI: 10.3389/fmed.2022.884679] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 04/20/2022] [Indexed: 01/08/2023] Open
Abstract
Asthma is a chronic disease, affecting approximately 350 million people worldwide. Inflammation and remodeling in asthma involve the large airways, and it is now widely accepted that the small airways (those with an internal diameter <2 mm) are involved in the pathogenesis of asthma and are the major determinant of airflow obstruction in this disease. From a clinical perspective, small airways dysfunction (SAD) is associated with more severe bronchial hyperresponsiveness, worse asthma control and more exacerbations. Unlike the GOLD guidelines which, in their definition, identify COPD as a disease of the small airways, the Global Initiative for Asthma (GINA) guidelines do not refer to the prevalence and role of SAD in asthmatic patients. This decision seems surprising, given the growing body of compelling evidence accumulating pointing out the high prevalence of SAD in asthmatic patients and the importance of SAD in poor asthma control. Furthermore, and remarkably, SAD appears to possess the characteristics of a treatable pulmonary trait, making it certainly appealing for asthma control optimization and exacerbation rate reduction. In this mini-review article, we address the most recent evidence on the role of SAD on asthma control and critically review the possible inclusion of SAD among treatable pulmonary traits in international guidelines on asthma.
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Affiliation(s)
- Marcello Cottini
- Allergy and Pneumology Outpatient Clinic, Bergamo, Italy
- Marcello Cottini
| | - Carlo Lombardi
- Departmental Unit of Allergology, Immunology & Pulmonary Diseases, Fondazione Poliambulanza, Brescia, Italy
- *Correspondence: Carlo Lombardi
| | - Giovanni Passalacqua
- Allergy and Respiratory Diseases, IRCCS Policlinico San Martino, University of Genoa, Genova, Italy
| | - Diego Bagnasco
- Allergy and Respiratory Diseases, IRCCS Policlinico San Martino, University of Genoa, Genova, Italy
| | - Alvise Berti
- Ospedale Santa Chiara and Department of Cellular, Computational and Integrative Biology (CIBIO), Thoracic Disease Research, University of Trento, Trento, Italy
| | - Pasquale Comberiati
- Section of Pediatrics, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Gianluca Imeri
- Respiratory Unit, Department of Medical Sciences, Papa Giovanni XXIII Hospital, University of Milan-Bergamo, Bergamo, Italy
| | - Massimo Landi
- Institute for Biomedical Research and Innovation, National Research Council, Palermo, Italy
- Pediatric National Healthcare System, Turin, Italy
| | - Enrico Heffler
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
- Personalized Medicine, Asthma and Allergy - IRCCS Humanitas Research Hospital - Rozzano, Milan, Italy
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Rossman MJ, Petrics G, Klansky A, Craig K, Irvin CG, Haverkamp HC. Exercise-induced Bronchodilation Equalizes Exercise Ventilatory Mechanics despite Variable Baseline Airway Function in Asthma. Med Sci Sports Exerc 2022; 54:258-266. [PMID: 34559730 PMCID: PMC8892975 DOI: 10.1249/mss.0000000000002793] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
PURPOSE We quantified the magnitude of exercise-induced bronchodilation in adult asthmatics under conditions of narrowed and dilated airways. We then assessed the effect of the bronchodilation on ventilatory capacity and the extent of ventilatory limitation during exercise. METHODS Eleven asthmatics completed three exercise bouts on a cycle ergometer. Exercise was preceded by no treatment (trialCON), inhaled β2 agonist (trialBD), or a eucapnic voluntary hyperpnea challenge (trialBC). Maximal expiratory flow-volume maneuvers (MEFV) were performed before and within 40 s of exercise cessation. Exercise tidal flow-volume loops were placed within the preexercise and postexercise MEFV curve and used to determine expiratory flow limitation and maximum ventilatory capacity (V˙ECap). RESULTS Preexercise airway function was different among the trials (forced expiratory volume 1 s during trialCON, trialBD, and trialBC = 3.3 ± 0.8 L, 3.8 ± 0.8 L, and 2.9 ± 0.8 L, respectively; P < 0.05). Maximal expired airflow increased with exercise during all three trials, but the increase was greatest during trialBC (delta forced expiratory volume 1 s during trialCON, trialBD, and trialBC = +12.2% ± 13.1%, +5.2% ± 5.7%, +28.1% ± 15.7%). Thus, the extent of expiratory flow limitation decreased, and V˙ECap increased, when the postexercise MEFV curve was used. During trialCON and trialBC, actual exercise ventilation exceeded V˙ECap calculated with the preexercise MEFV curve in seven and nine subjects, respectively. CONCLUSIONS These findings demonstrate the critical importance of exercise bronchodilation in the asthmatic with narrowed airways. Of clinical relevance, the results also highlight the importance of assessing airway function during or immediately after exercise in asthmatic persons; otherwise, mechanical limitations to exercise ventilation will be overestimated.
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Affiliation(s)
- Matthew J Rossman
- Department of Integrative Physiology, University of Colorado-Boulder, Boulder, CO
| | - Greg Petrics
- Department of Environmental and Health Sciences, Northern Vermont University-Johnson, Johnson, VT
| | - Andrew Klansky
- Department of Environmental and Health Sciences, Northern Vermont University-Johnson, Johnson, VT
| | - Kasie Craig
- Department of Environmental and Health Sciences, Northern Vermont University-Johnson, Johnson, VT
| | - Charles G Irvin
- Departments of Medicine and Biophysics Pulmonary and Critical Care Medicine, University of Vermont, Burlington, VT
| | - Hans Christian Haverkamp
- Department of Nutrition and Exercise Physiology, Elson S. Floyd College of Medicine, Washington State University-Spokane Health Sciences, Spokane, WA
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Collins SÉ, Phillips DB, Brotto AR, Rampuri ZH, Stickland MK. Ventilatory efficiency in athletes, asthma and obesity. Eur Respir Rev 2021; 30:30/161/200206. [PMID: 34289980 DOI: 10.1183/16000617.0206-2020] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 09/16/2020] [Indexed: 11/05/2022] Open
Abstract
During submaximal exercise, minute ventilation (V' E) increases in proportion to metabolic rate (i.e. carbon dioxide production (V' CO2 )) to maintain arterial blood gas homeostasis. The ratio V' E/V' CO2 , commonly termed ventilatory efficiency, is a useful tool to evaluate exercise responses in healthy individuals and patients with chronic disease. Emerging research has shown abnormal ventilatory responses to exercise (either elevated or blunted V' E/V' CO2 ) in some chronic respiratory and cardiovascular conditions. This review will briefly provide an overview of the physiology of ventilatory efficiency, before describing the ventilatory responses to exercise in healthy trained endurance athletes, patients with asthma, and patients with obesity. During submaximal exercise, the V' E/V' CO2 response is generally normal in endurance-trained individuals, patients with asthma and patients with obesity. However, in endurance-trained individuals, asthmatics who demonstrate exercise induced-bronchoconstriction, and morbidly obese individuals, the V' E/V' CO2 can be blunted at maximal exercise, likely because of mechanical ventilatory constraint.
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Affiliation(s)
- Sophie É Collins
- Division of Pulmonary Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada.,Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, Canada
| | - Devin B Phillips
- Respiratory Investigation Unit, Department of Medicine, Queen's University, Kingston, Canada
| | - Andrew R Brotto
- Division of Pulmonary Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| | - Zahrah H Rampuri
- Division of Pulmonary Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada.,Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, Canada
| | - Michael K Stickland
- Division of Pulmonary Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada.,G.F. MacDonald Centre for Lung Health, Covenant Health, Edmonton, Canada
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Grosbois JM, Fry S, Tercé G, Wallaert B, Chenivesse C. [Physical activity and pulmonary rehabilitation in adults with asthma]. Rev Mal Respir 2021; 38:382-394. [PMID: 33744072 DOI: 10.1016/j.rmr.2021.02.065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 10/26/2020] [Indexed: 11/24/2022]
Abstract
Physical activity is reduced in people with asthma compared to the general population, especially in situations where patients have uncontrolled asthma symptoms, persistent airflow obstruction and other long-term medical problems, in particular obesity and anxiety. Exertional dyspnea, which is of multifactorial origin, is the main cause of reduced physical activity reduction and draws patients into a vicious circle further impairing quality of life and asthma control. Both the resumption of a regular physical activity, integrated into daily life, adapted to patients' needs and wishes as well as physical and environmental possibilities for mild to moderate asthmatics, and pulmonary rehabilitation (PR) for severe and/or uncontrolled asthmatics, improve control of asthma, dyspnea, exercise tolerance, quality of life, anxiety, depression and reduce exacerbations. A motivational interview to promote a regular programme of physical activity in mild to moderate asthma (steps 1 to 3) should be offered by all health professionals in the patient care pathway, within the more general framework of therapeutic education. The medical prescription of physical activities, listed in the Public Health Code for patients with long-term diseases, and pulmonary rehabilitation should be performed more often by specialists or the attending physician. Pulmonary rehabilitation addresses the needs of severe asthma patients (steps 4 and 5), and of any asthmatic patient with poorly controlled disease and/or requiring hospitalized for acute exacerbations, regardless of the level of airflow obstruction, and/or with associated comorbidities, and before prescribing biological therapies.
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Affiliation(s)
- J-M Grosbois
- FormAction Santé, zone d'activité du bois, rue de Pietralunga, 59840 Pérenchies, France; CH Béthune, service de réadaptation respiratoire et de pneumologie, 62400 Béthune, France; Alvéole, groupe de travail de la SPLF, exercice et réadaptation respiratoire, 75006 Paris, France.
| | - S Fry
- CHU Lille, service de pneumologie et immuno-allergologie, université Lille, institut Pasteur de Lille, U1019, UMR 9017, Center for Infection and Immunity of Lille (CIIL), 59000 Lille, France; CRISALIS, F-CRIN INSERM network, Lille, France
| | - G Tercé
- CH Béthune, service de réadaptation respiratoire et de pneumologie, 62400 Béthune, France
| | - B Wallaert
- Alvéole, groupe de travail de la SPLF, exercice et réadaptation respiratoire, 75006 Paris, France; CHU Lille, service de pneumologie et immuno-allergologie, université Lille, institut Pasteur de Lille, U1019, UMR 9017, Center for Infection and Immunity of Lille (CIIL), 59000 Lille, France
| | - C Chenivesse
- CHU Lille, service de pneumologie et immuno-allergologie, université Lille, institut Pasteur de Lille, U1019, UMR 9017, Center for Infection and Immunity of Lille (CIIL), 59000 Lille, France; CRISALIS, F-CRIN INSERM network, Lille, France
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- Alvéole, groupe de travail de la SPLF, exercice et réadaptation respiratoire, 75006 Paris, France
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Guibert N, Guilleminault L, Lepage B, Heluain V, Fumat R, Dupuis M, Faviez G, Plat G, Hermant C, Didier A. Bronchial thermoplasty in patients with dynamic hyperinflation: results from the proof-of-concept HEAT trial. Eur Respir J 2021; 57:13993003.01616-2020. [PMID: 32817006 DOI: 10.1183/13993003.01616-2020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 08/07/2020] [Indexed: 11/05/2022]
Affiliation(s)
- Nicolas Guibert
- Pulmonology Dept, Larrey University Hospital, Toulouse, France.,Paul Sabatier Toulouse University III, Toulouse, France.,Inserm, Centre de Recherche en Cancérologie de Toulouse, CRCT UMR-1037, Toulouse, France
| | - Laurent Guilleminault
- Pulmonology Dept, Larrey University Hospital, Toulouse, France.,Paul Sabatier Toulouse University III, Toulouse, France.,Center for Pathophysiology Toulouse Purpan, INSERM U1043, CNRS UMR 5282, Toulouse III University, CRISALIS F-CRIN, Toulouse, France
| | - Benoit Lepage
- Paul Sabatier Toulouse University III, Toulouse, France
| | | | - Romane Fumat
- Pulmonology Dept, Larrey University Hospital, Toulouse, France
| | - Marion Dupuis
- Pulmonology Dept, Larrey University Hospital, Toulouse, France
| | | | - Gavin Plat
- Pulmonology Dept, Larrey University Hospital, Toulouse, France
| | | | - Alain Didier
- Pulmonology Dept, Larrey University Hospital, Toulouse, France.,Paul Sabatier Toulouse University III, Toulouse, France.,Center for Pathophysiology Toulouse Purpan, INSERM U1043, CNRS UMR 5282, Toulouse III University, CRISALIS F-CRIN, Toulouse, France
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7
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Bretonneau Q, Pichon A, de Bisschop C. Intercostal muscle oxygenation during expiratory load breathing at rest. Respir Physiol Neurobiol 2018; 261:24-30. [PMID: 30583068 DOI: 10.1016/j.resp.2018.12.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 11/26/2018] [Accepted: 12/21/2018] [Indexed: 10/27/2022]
Abstract
BACKGROUND During acute bronchial obstruction, despite a higher work of breathing, blood supply and oxygen availability may be reduced in intercostal muscles because of mechanical constraints. This hypothesis was assessed in healthy subjects breathing with and without expiratory load (ETL). METHODS Eleven men (24 ± 2 years) breathed at rest for 5 min in unloaded condition and for 20 min through a 20-cmH2O ETL. Tissue saturation index (TSI) and changes (Δ) in concentration of total and oxy-haemoglobin ([tHb] and [O2Hb]) were measured in the seventh intercostal space by near-infrared spectroscopy. RESULTS [tHb] and [O2Hb] decreased with ETL (-5.16 μM and -3.54 μM; p < 0.05). TSI did not vary. Negative correlations were observed between Δ[O2Hb] and changes in expiratory flow rate (ΔVt/Te) and between ΔTSI and Δ V˙E (r = -0.78 and -0.74; p ≤ 0.01). CONCLUSION Despite decreases in Hb concentrations, saturation in oxygen was not reduced with ETL in intercostal muscles, suggesting a satisfactory ventilatory and/or hemodynamic arrangement.
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Affiliation(s)
- Quentin Bretonneau
- Laboratoire 'MOVE', EA 6314 - Université de Poitiers, Faculté des Sciences du Sport, 8, allée Jean Monnet, 86000 Poitiers, France
| | - Aurélien Pichon
- Laboratoire 'MOVE', EA 6314 - Université de Poitiers, Faculté des Sciences du Sport, 8, allée Jean Monnet, 86000 Poitiers, France
| | - Claire de Bisschop
- Laboratoire 'MOVE', EA 6314 - Université de Poitiers, Faculté des Sciences du Sport, 8, allée Jean Monnet, 86000 Poitiers, France.
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Weatherald J, Lougheed MD, Taillé C, Garcia G. Mechanisms, measurement and management of exertional dyspnoea in asthma: Number 5 in the Series "Exertional dyspnoea" Edited by Pierantonio Laveneziana and Piergiuseppe Agostoni. Eur Respir Rev 2017; 26:26/144/170015. [PMID: 28615308 DOI: 10.1183/16000617.0015-2017] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 04/17/2017] [Indexed: 11/05/2022] Open
Abstract
Asthma is a heterogeneous condition, with dyspnoea during exercise affecting individuals to a variable degree. This narrative review explores the mechanisms and measurement of exertional dyspnoea in asthma and summarises the available evidence for the efficacy of various interventions on exertional dyspnoea. Studies on the mechanisms of dyspnoea in asthma have largely utilised direct bronchoprovocation challenges, rather than exercise, which may invoke different physiological mechanisms. Thus, the description of dyspnoea during methacholine challenge can differ from what is experienced during daily activities, including exercise. Dyspnoea perception during exercise is influenced by many interacting variables, such as asthma severity and phenotype, bronchoconstriction, dynamic hyperinflation, respiratory drive and psychological factors. In addition to the intensity of dyspnoea, the qualitative description of dyspnoea may give important clues as to the underlying mechanism and may be an important endpoint for future interventional studies. There is currently little evidence demonstrating whether pharmacological or non-pharmacological interventions specifically improve exertional dyspnoea, which is an important area for future research.
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Affiliation(s)
- Jason Weatherald
- Université Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France.,Service de Pneumologie, Hôpital Bicêtre, AP-HP, Le Kremlin-Bicêtre, France.,INSERM U999, LabEx LERMIT, Centre Chirurgical Marie Lannelongue, Le Plessis-Robinson, France.,Division of Respirology, Dept of Medicine, University of Calgary, Calgary, AB, Canada
| | - M Diane Lougheed
- Division of Respirology, Dept of Medicine, Queen's University, Kingston, ON, Canada.,Dept of Biomedical and Molecular Sciences, Queen's University, Kingston, ON, Canada
| | - Camille Taillé
- Service de Pneumologie et Centre de Compétence des Maladies Pulmonaires Rares, Hôpital Bichat, AP-HP, Paris, France.,Département Hospitalo-Universitaire FIRE, Université Paris Diderot, INSERM UMR 1152, LabEx Inflamex, Paris, France
| | - Gilles Garcia
- Université Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France .,INSERM U999, LabEx LERMIT, Centre Chirurgical Marie Lannelongue, Le Plessis-Robinson, France.,Service de Physiologie, Hôpital Bicêtre, AP-HP, Le Kremlin-Bicêtre, France
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