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Perspectives post-COVID-19 : le point de vue des pneumologues. ANESTHÉSIE & RÉANIMATION 2022. [PMCID: PMC9122778 DOI: 10.1016/j.anrea.2022.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Plus de 5 millions de personnes en France ont présenté une infection par le SARS-CoV-2. Lors des précédentes épidémies de coronavirus (SARS-CoV, Mers-CoV), les patients ont développé des séquelles pulmonaires avec une dyspnée, une diminution de la capacité de diffusion du monoxyde de carbone et/ou des lésions de fibrose. Le but de cette revue était d’évaluer les séquelles respiratoires et de faire une synthèse des principaux symptômes respiratoires après une infection au COVID-19 et de leurs étiologies. Les quatre principales causes de dyspnée sont les séquelles respiratoires, le déconditionnement, l’hyperventilation et les causes classiques de dyspnée. Les principales séquelles respiratoires étaient l’altération de la capacité de diffusion du monoxyde de carbone et le schéma de fibrose. La prévalence de ces séquelles respiratoires est actuellement inconnue.
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Tiotiu A, Ioan I, Poussel M, Schweitzer C, Kafi SA. Comparative analysis between available challenge tests in the hyperventilation syndrome. Respir Med 2021; 179:106329. [PMID: 33610050 DOI: 10.1016/j.rmed.2021.106329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 01/24/2021] [Accepted: 02/01/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND The hyperventilation syndrome (HVS) is characterized by somatic/ psychological symptoms due to sustained hypocapnia and respiratory alkalosis without any organic disease. OBJECTIVE The purpose of this study was to compare ventilatory parameters and symptoms reproducibility during the hyperventilation provocation test (HVPT) and cardiopulmonary exercise test (CPET) as diagnostic tools in patients with HVS, and to identify the most frequent etiologies of the HVS by a systematic assessment. METHODS After exclusion of organic causes, 59 patients with HVS according to Nijmegen's questionnaire (NQ) score ≥23 with associated hypocapnia (PaCO2/PETCO2<35 mm Hg) were studied. RESULTS The most frequent comorbidities of HVS were anxiety and asthma (respectively 95% and 73% of patients). All patients described ≥3 symptoms of NQ during the HVPT vs 14% of patients during the CPET (p<0.01). For similar maximal ventilation (61 L/min during HVPT vs 60 L/min during CPET), the median level of PETCO2 decreased from 30 mmHg at baseline to 15 mmHg during hyperventilation and increased from 31 mmHg at baseline to 34 mmHg at peak exercise (all p<0.01). No significant difference for the ventilatory parameters was found between patients with HVS (n = 16) and patients with HVS + asthma (n = 43). CONCLUSIONS In term of symptoms reproducibility, HVPT is a better diagnostic tool than CPET for HVS. An important proportion of patients with HVS has an atypical asthma previously misdiagnosed. The exercise-induced hyperventilation did not induce abnormal reduction in PETCO2, suggesting that the exercise could be a therapeutic tool in HVS.
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Affiliation(s)
- Angelica Tiotiu
- Department of Pulmonology, University Hospital of Nancy, 9 Rue du Morvan, 54511, Vandoeuvre-lès-Nancy, France; Development, Adaptation and Disadvantage, Cardiorespiratory Regulations and Motor Control (EA 3450 DevAH) Research Unit, University of Lorraine, 9 Avenue de la Forêt de Haye, 54505, Vandoeuvre-lès-Nancy, France.
| | - Iulia Ioan
- Development, Adaptation and Disadvantage, Cardiorespiratory Regulations and Motor Control (EA 3450 DevAH) Research Unit, University of Lorraine, 9 Avenue de la Forêt de Haye, 54505, Vandoeuvre-lès-Nancy, France; Lung Function Testing Lab, Children's University Hospital, 8 Rue du Morvan, 54511, Vandoeuvre-lès-Nancy, France
| | - Mathias Poussel
- Development, Adaptation and Disadvantage, Cardiorespiratory Regulations and Motor Control (EA 3450 DevAH) Research Unit, University of Lorraine, 9 Avenue de la Forêt de Haye, 54505, Vandoeuvre-lès-Nancy, France; University Centre of Sports Medicine and Adapted Physical Activity, Department of Pulmonary Function Testing and Exercise Physiology, 9 Rue du Morvan, 54511, Vandoeuvre-lès-Nancy, France
| | - Cyril Schweitzer
- Development, Adaptation and Disadvantage, Cardiorespiratory Regulations and Motor Control (EA 3450 DevAH) Research Unit, University of Lorraine, 9 Avenue de la Forêt de Haye, 54505, Vandoeuvre-lès-Nancy, France; Lung Function Testing Lab, Children's University Hospital, 8 Rue du Morvan, 54511, Vandoeuvre-lès-Nancy, France
| | - Sophia Abdel Kafi
- Department of Pulmonology, Jolimont Hospital, 159 Rue Ferrer, 7100, La Louvière, Belgium
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Liang YR, Yang MC, Wu YK, Tzeng IS, Wu PY, Huang SY, Lan CC, Wu CP. Transitional Percentage of Minute Volume as a Novel Predictor of Weaning from Mechanical Ventilation in Patients with Chronic Respiratory Failure. Asian Nurs Res (Korean Soc Nurs Sci) 2020; 14:30-35. [PMID: 31978600 DOI: 10.1016/j.anr.2020.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 12/30/2019] [Accepted: 01/02/2020] [Indexed: 11/25/2022] Open
Abstract
PURPOSE Some patients with respiratory failure fail initial weaning attempts and need prolonged mechanical ventilation (MV). Prolonged MV is associated with many complications and consumption of heathcare resources. Objective weaning indices help staffs to identify high-potential patients for weaning from the MV. Traditional weaning indices are not reliable in clinical practice. Transitional percentage of minute volume (TMV%) is a new index of the work of breathing. This study aimed to investigate the utility of TMV% in the prediction of weaning potential. METHODS This study was prospectively performed including all patients with prolonged MV. Researchers recorded their demographics, TMV%, respiratory parameters, Acute Physiology and Chronic Health Evaluation II score, and laboratory data upon arrival at the respiratory care center. The factors associated with successful weaning were analyzed. RESULTS Out of the 120 patients included, 84 (70.0%) were successfully weaned from MV. Traditional weaning indices such as rapid shallow breathing index could not predict the weaning outcome. TMV% was a valuable parameter as patients with a lower TMV%, higher tidal volume, higher hemoglobin, lower blood urea nitrogen, and lower Acute Physiology and Chronic Health Evaluation II scores had a higher rate of successful weaning. TMV%, tidal volume, and HCO3- levels were independent predictors of successful weaning, and the area under the curve was .79 in the logistic regression model. CONCLUSION TMV% is a novel and effective predictor of successful weaning. Patients with lower TMV% had a higher MV weaning outcome. Once patients with a high potential for successful weaning are identified, they should be aggressively weaned from MV as soon as possible. CLINICAL TRIALS GOVERNMENT IDENTIFIER NCT033480.
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Affiliation(s)
- Ya-Ru Liang
- Division of Respiratory Therapy, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei, Taiwan
| | - Mei-Chen Yang
- Division of Pulmonary Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei, Taiwan; School of Medicine, Tzu-Chi University, Hualien, Taiwan
| | - Yao-Kuang Wu
- Division of Pulmonary Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei, Taiwan; School of Medicine, Tzu-Chi University, Hualien, Taiwan
| | - I-Shiang Tzeng
- Department of Research, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei, Taiwan
| | - Pei-Yi Wu
- Division of Respiratory Therapy, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei, Taiwan
| | - Shiang-Yu Huang
- Division of Respiratory Therapy, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei, Taiwan
| | - Chou-Chin Lan
- Division of Pulmonary Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei, Taiwan; School of Medicine, Tzu-Chi University, Hualien, Taiwan
| | - Chin-Pyng Wu
- Department of Critical Care Medicine, Landseed International Hospital, Tao-Yuan, Taiwan.
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Primary Hyperventilation in the Emergency Department: A First Overview. PLoS One 2015; 10:e0129562. [PMID: 26110771 PMCID: PMC4482441 DOI: 10.1371/journal.pone.0129562] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Accepted: 05/10/2015] [Indexed: 11/30/2022] Open
Abstract
Background Primary hyperventilation is defined as a state of alveolar ventilation in excess of metabolic requirements, leading to decreased arterial partial pressure of carbon dioxide. The primary aim of this study was to characterise patients diagnosed with primary hyperventilation in the ED. Methods Our retrospective cohort study comprised adult (≥16 years) patients admitted to our ED between 1 January 2006 and 31 December 2012 with the primary diagnosis of primary (=psychogenic) hyperventilation. Results A total of 616 patients were eligible for study. Participants were predominantely female (341 [55.4%] female versus 275 [44.6%] male respectively, p <0.01). The mean age was 36.5 years (SD 15.52, range 16-85). Patients in their twenties were the most common age group (181, 29.4%), followed by patients in their thirties (121, 19.6%). Most patients presented at out-of-office hours (331 [53.7%]. The most common symptom was fear (586, 95.1%), followed by paraesthesia (379, 61.5%) and dizziness (306, 49.7%). Almost a third (187, 30.4%) of our patients had previously experienced an episode of hyperventilation and half (311, 50.5%) of patients had a psychiatric co-morbidity. Conclusion Hyperventilation is a diagnostic chimera with a wide spectrum of symptoms. Patients predominantly are of young age, female sex and often have psychiatric comorbidities. The severity of symptoms accompanied with primary hyperventilation most often needs further work-up to rule out other diagnosis in a mostly young population. In the future, further prospective multicentre studies are needed to evaluate and establish clear diagnostic criteria for primary hyperventilation and possible screening instruments.
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Barker N, Everard ML. Getting to grips with 'dysfunctional breathing'. Paediatr Respir Rev 2015; 16:53-61. [PMID: 25499573 DOI: 10.1016/j.prrv.2014.10.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Accepted: 10/03/2014] [Indexed: 11/25/2022]
Abstract
Dysfunctional breathing (DB) is common, frequently unrecognised and responsible for a substantial burden of morbidity. Previously lack of clarity in the use of the term and the use of multiple terms to describe the same condition has hampered our understanding. DB can be defined as an alteration in the normal biomechanical patterns of breathing that result in intermittent or chronic symptoms. It can be subdivided into thoracic and extra thoracic forms. Thoracic DB is characterised by breathing patterns involving relatively inefficient, excessive upper chest wall activity with or without accessory muscle activity. This is frequently associated with increased residual volume, frequent sighing and an irregular pattern of respiratory effort. It may be accompanied by true hyperventilation in the minority of subjects. Extra thoracic forms include paradoxical vocal cord dysfunction and the increasingly recognised supra-glottic 'laryngomalacia' commonly seen in young sportsmen and women. While the two forms would appear to be two discreet entities they often share common factors in aetiology and respond to similar interventions. Hence both forms are considered in this review which aims to generate a more coherent approach to understanding, diagnosing and treating these conditions.
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Affiliation(s)
- Nicki Barker
- Department of Respiratory Medicine, Sheffield Children's Hospital, Western Bank, Sheffield, S10 2TH, UK
| | - Mark L Everard
- School of Paediatrics and Child Health, University of Western Australia, Princess Margaret Hospital for Children, Roberts Road, Subiaco 6008, Western Australia.
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Dubreuil C, Prosper M. Le syndrome d’hyperventilation. MEDECINE INTENSIVE REANIMATION 2014. [DOI: 10.1007/s13546-014-0909-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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CliftonSmith T, Rowley J. Breathing pattern disorders and physiotherapy: inspiration for our profession. PHYSICAL THERAPY REVIEWS 2013. [DOI: 10.1179/1743288x10y.0000000025] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Jones M, Harvey A, Marston L, O'Connell NE. Breathing exercises for dysfunctional breathing/hyperventilation syndrome in adults. Cochrane Database Syst Rev 2013; 2013:CD009041. [PMID: 23728685 PMCID: PMC11379427 DOI: 10.1002/14651858.cd009041.pub2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Dysfunctional breathing/hyperventilation syndrome (DB/HVS) is a respiratory disorder, psychologically or physiologically based, involving breathing too deeply and/or too rapidly (hyperventilation) or erratic breathing interspersed with breath-holding or sighing (DB). DB/HVS can result in significant patient morbidity and an array of symptoms including breathlessness, chest tightness, dizziness, tremor and paraesthesia. DB/HVS has an estimated prevalence of 9.5% in the general adult population, however, there is little consensus regarding the most effective management of this patient group. OBJECTIVES (1) To determine whether breathing exercises in patients with DB/HVS have beneficial effects as measured by quality of life indices (2) To determine whether there are any adverse effects of breathing exercises in patients with DB/HVS SEARCH METHODS: We identified trials for consideration using both electronic and manual search strategies. We searched CENTRAL, MEDLINE, EMBASE, and four other databases. The latest search was in February 2013. SELECTION CRITERIA We planned to include randomised, quasi-randomised or cluster randomised controlled trials (RCTs) in which breathing exercises, or a combined intervention including breathing exercises as a key component, were compared with either no treatment or another therapy that did not include breathing exercises in patients with DB/HVS. Observational studies, case studies and studies utilising a cross-over design were not eligible for inclusion.We considered any type of breathing exercise for inclusion in this review, such as breathing control, diaphragmatic breathing, yoga breathing, Buteyko breathing, biofeedback-guided breathing modification, yawn/sigh suppression. Programs where exercises were either supervised or unsupervised were eligible as were relaxation techniques and acute-episode management, as long as it was clear that breathing exercises were a key component of the intervention.We excluded any intervention without breathing exercises or where breathing exercises were not key to the intervention. DATA COLLECTION AND ANALYSIS Two review authors independently checked search results for eligible studies, assessed all studies that appeared to meet the selection criteria and extracted data. We used standard procedures recommended by The Cochrane Collaboration. MAIN RESULTS We included a single RCT assessed at unclear risk of bias, which compared relaxation therapy (n = 15) versus relaxation therapy and breathing exercises (n = 15) and a no therapy control group (n = 15).Quality of life was not an outcome measure in this RCT, and no numerical data or statistical analysis were presented in this paper. A significant reduction in the frequency and severity of hyperventilation attacks in the breathing exercise group compared with the control group was reported. In addition, a significant difference in frequency and severity of hyperventilation attacks between the breathing and relaxation group was reported. However, no information could be extracted from the paper regarding the size of the treatment effects. AUTHORS' CONCLUSIONS The results of this systematic review are unable to inform clinical practice, based on the inclusion of only one small, poorly reported RCT. There is no credible evidence regarding the effectiveness of breathing exercises for the clinical symptoms of DB/HVS. It is currently unknown whether these interventions offer any added value in this patient group or whether specific types of breathing exercise demonstrate superiority over others. Given that breathing exercises are frequently used to treat DB/HVS, there is an urgent need for further well designed clinical trials in this area. Future trials should conform to the CONSORT statement for standards of reporting and use appropriate, validated outcome measures. Trial reports should also ensure full disclosure of data for all important clinical outcomes.
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Affiliation(s)
- Mandy Jones
- School of Health Sciences and Social Care, Brunel University, Uxbridge, UK.
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Weiler JM, Bonini S, Coifman R, Craig T, Delgado L, Capão-Filipe M, Passali D, Randolph C, Storms W. American Academy of Allergy, Asthma & Immunology Work Group report: exercise-induced asthma. J Allergy Clin Immunol 2007; 119:1349-58. [PMID: 17433829 DOI: 10.1016/j.jaci.2007.02.041] [Citation(s) in RCA: 146] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2007] [Accepted: 02/20/2007] [Indexed: 11/23/2022]
Affiliation(s)
- John M Weiler
- CompleWare Corporation, Iowa Clinical Research Corporation and Department of Internal Medicine, University of Iowa, Iowa City, Iowa, USA
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Myrianthefs PM, Briva A, Lecuona E, Dumasius V, Rutschman DH, Ridge KM, Baltopoulos GJ, Sznajder JI. Hypocapnic but not metabolic alkalosis impairs alveolar fluid reabsorption. Am J Respir Crit Care Med 2005; 171:1267-71. [PMID: 15764729 PMCID: PMC2718461 DOI: 10.1164/rccm.200408-998oc] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Acid-base disturbances, such as metabolic or respiratory alkalosis, are relatively common in critically ill patients. We examined the effects of alkalosis (hypocapnic or metabolic alkalosis) on alveolar fluid reabsorption in the isolated and continuously perfused rat lung model. We found that alveolar fluid reabsorption after 1 hour was impaired by low levels of CO2 partial pressure (PCO2; 10 and 20 mm Hg) independent of pH levels (7.7 or 7.4). In addition, PCO2 higher than 30 mm Hg or metabolic alkalosis did not have an effect on this process. The hypocapnia-mediated decrease of alveolar fluid reabsorption was associated with decreased Na,K-ATPase activity and protein abundance at the basolateral membranes of distal airspaces. The effect of low PCO2 on alveolar fluid reabsorption was reversible because clearance normalized after correcting the PCO2 back to normal levels. These data suggest that hypocapnic but not metabolic alkalosis impairs alveolar fluid reabsorption. Conceivably, correction of hypocapnic alkalosis in critically ill patients may contribute to the normalization of lung ability to clear edema.
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Affiliation(s)
- Pavlos M Myrianthefs
- Division of Pulmonary and Critical Care Medicine, 240 East Huron, McGaw 2-2300, Northwestern University, Chicago, IL 60611, USA
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