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Saulnier L, Prigent H, Hartley S, Delord V, Bossard I, Stalens C, Lofaso F, Leotard A. Sleep disordered breathing assessment in patient with slowly progressive neuromuscular disease. Sleep Med 2024; 114:229-236. [PMID: 38237410 DOI: 10.1016/j.sleep.2024.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/18/2023] [Accepted: 01/07/2024] [Indexed: 02/07/2024]
Abstract
BACKGROUND Sleep-disordered breathing (SDB) is common in patients with neuromuscular diseases (NMD). Focusing on hypercapnia may lead to the neglect of other SDB such as obstructive and/or central sleep apnea syndrome (SAS). Our objectives were to assess the risk of inappropriate SDB management according to different screening strategies and to evaluate the prevalence and determinants of isolated and overlapping sleep apnea in patients with slowly progressive NMD. METHODS This monocentric, cross-sectional, retrospective study analyzed medical records of adult NMD patients referred to a sleep department. Diagnostic strategies, including respiratory polygraphy (RP), nocturnal transcutaneous capnography (tcCO2), and blood gases (BG), were assessed for their performance in diagnosing SDB. Demographics and pulmonary function test results were compared between patients with or without SDB to identify predictors. RESULTS Among the 149 patients who underwent a full diagnostic panel (RP + tcCO2 + BG), 109 were diagnosed with SDB. Of these, 33% had isolated SAS, and central apneas were predominant. Using single diagnostic strategies would lead to inappropriate SDB management in two thirds of patients. A combination of 2 diagnostic tools resulted respectively in 21.1, 22.9 and 42.2 % of inappropriate SDB management for RP + tcCO2, RP + BG and tcCO2 + BG. CONCLUSION The significant prevalence of sleep apnea syndrome in patients with slowly progressive NMD highlights the need for increased awareness among clinicians. Improved diagnostics involve a systematic approach addressing both sleep apnea and diurnal and nocturnal alveolar hypoventilation to avoid inappropriate management and limit the consequences of SDB.
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Affiliation(s)
- Lucas Saulnier
- Service de Physiologie et d'Explorations Fonctionnelles, AP-HP, GHU Paris Saclay, Hôpital Raymond Poincaré, Garches, France; Unité de Recherche Clinique Paris Saclay Ouest, AP-HP, Hôpital Raymond Poincaré, Garches, France
| | - Hélène Prigent
- Service de Physiologie et d'Explorations Fonctionnelles, AP-HP, GHU Paris Saclay, Hôpital Raymond Poincaré, Garches, France; « End:icap » U1179 Inserm, UVSQ-Université Paris-Saclay, Versailles, 78000, France
| | - Sarah Hartley
- Service de Physiologie et d'Explorations Fonctionnelles, AP-HP, GHU Paris Saclay, Hôpital Raymond Poincaré, Garches, France
| | | | - Isabelle Bossard
- Centre d'investigation Clinique 1429, AP-HP, Hôpital Raymond Poincaré, Garches, France
| | - Caroline Stalens
- AFM-Téléthon, Direction des Actions Médicales, Evry, 91000, France
| | - Frédéric Lofaso
- Service de Physiologie et d'Explorations Fonctionnelles, AP-HP, GHU Paris Saclay, Hôpital Raymond Poincaré, Garches, France; Université Paris-Saclay, UVSQ, ERPHAN, Versailles, 78000, France
| | - Antoine Leotard
- Service de Physiologie et d'Explorations Fonctionnelles, AP-HP, GHU Paris Saclay, Hôpital Raymond Poincaré, Garches, France; « End:icap » U1179 Inserm, UVSQ-Université Paris-Saclay, Versailles, 78000, France.
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2
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Georges T, Jaffré S, Morin J, Delbove A, Guyomarch B, Alami H, Bretonnière C, Blanc FX. Contribution of Transcutaneous P CO2 in Obesity Hypoventilation Syndrome. Respir Care 2023; 69:respcare.10816. [PMID: 37848253 PMCID: PMC10753607 DOI: 10.4187/respcare.10816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
BACKGROUND More and more patients have obesity-hypoventilation syndrome (OHS) because of the increasing prevalence of obesity. The accuracy of transcutaneous PCO2 (PtcCO2 ) has recently been validated. However, no study evaluated the interest of measuring systematically nocturnal PtcCO2 in the follow-up of patients with OHS and home mechanical ventilation to detect residual nocturnal hypoventilation. We aimed to evaluate the contribution of nocturnal PtcCO2 to assess nocturnal hypoventilation compared with current routine examinations, that is, daytime arterial blood gases and nocturnal pulse oximetry. METHODS A prospective monocentric pilot study was conducted from August 2018 to November 2019. Patients with stable OHS and who were treated with home noninvasive ventilation for at least 6 months were eligible to participate. After oral consent, we performed both diurnal arterial blood gases and combined home oximetry and capnography. The primary end point was the presence of residual nocturnal hypoventilation, defined as PaCO2 > 45 mm Hg or bicarbonate ≥ 27 mmol/L, SpO2 < 90% for ≥ 10% of the night, or PtcCO2 > 49 mm Hg for ≥ 10% of the night. RESULTS A total of 32 subjects were included. Twenty-nine subjects with nocturnal PtcCO2 were analyzed. Eighteen of the 29 subjects showed residual nocturnal hypoventilation. The association of diurnal arterial blood gases and nocturnal pulse oximetry revealed nocturnal hypoventilation in only 9 subjects. Among the 19 subjects with both normal blood gases and normal nocturnal pulse oximetry, 11 had nocturnal hypoventilation with transcutaneous capnography. Only one subject presented with hypoventilation symptoms (asthenia). CONCLUSIONS The assessment of PtcCO2 in comparison with nocturnal pulse oximetry and arterial blood gases provides important information for the diagnosis of residual nocturnal hypoventilation in the subjects with OHS who were ventilated at home.
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Affiliation(s)
- Thomas Georges
- Respiratory Medicine Department, CHD Vendée, La Roche sur Yon, France
- Nantes Université, Nantes University Hospital, Service de Pneumologie, L'institut du thorax, Nantes, France
| | - Sandrine Jaffré
- Nantes Université, Nantes University Hospital, Service de Pneumologie, L'institut du thorax, Nantes, France.
| | - Jean Morin
- Nantes Université, Nantes University Hospital, Service de Pneumologie, L'institut du thorax, Nantes, France
| | - Agathe Delbove
- Intensive Care Unit, Centre Hospitalier Bretagne Atlantique, Vannes, France
| | - Béatrice Guyomarch
- Nantes Université, Nantes University Hospital, Plateforme de Méthodologie et Biostatistique, Nantes, France
| | - Hakim Alami
- Nantes Université, Nantes University Hospital, Service de Pneumologie, L'institut du thorax, Nantes, France
| | - Cédric Bretonnière
- Nantes Université, Nantes University Hospital, Service de Pneumologie, L'institut du thorax, Nantes, France
| | - François-Xavier Blanc
- Nantes Université, Nantes University Hospital, Service de Pneumologie, L'institut du thorax, Nantes, France
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Fayssoil A, Mansencal N, Nguyen LS, Nardi O, Yaou RB, Leturcq F, Amthor H, Wahbi K, Becane HM, Lofaso F, Prigent H, Bassez G, Behin A, Stojkovic T, Fontaine B, Duboc D, Dubourg O, Clair B, Laforet P, Annane D, Orlikowski D. Prognosis of Right Ventricular Systolic Dysfunction in Patients With Duchenne Muscular Dystrophy. J Am Heart Assoc 2023; 12:e027231. [PMID: 37581390 PMCID: PMC10492954 DOI: 10.1161/jaha.122.027231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Accepted: 06/30/2023] [Indexed: 08/16/2023]
Abstract
Background Chronic respiratory failure and heart involvement may occur in Duchenne muscular dystrophy. We aimed to assess the prognostic value of the right ventricular (RV) systolic dysfunction in patients with Duchenne muscular dystrophy. Methods and Results We studied 90 genetically proven patients with Duchenne muscular dystrophy from 2010 to 2019, to obtain respiratory function and Doppler echocardiographic RV systolic function. Prognostic value was assessed in terms of death and cardiac events. The median age was 27.5 years, and median forced vital capacity was at 10% of the predicted value: 83 patients (92%) were on home mechanical ventilation. An RV systolic dysfunction was found in 46 patients (51%). In patients without RV dysfunction at inclusion, a left ventricular systolic dysfunction at inclusion was associated with a higher risk of developing RV dysfunction during follow-up with an odds ratio of 4.5 (P=0.03). RV systolic dysfunction was significantly associated with cardiac events, mainly acute heart failure (62%) and cardiogenic shock (23%). In a multivariable Cox model, the adjusted hazard ratio was 4.96 (95% CI [1.09-22.6]; P=0.04). In terms of death, we found a significant difference between patients with RV dysfunction versus patients without RV dysfunction in the Kaplan-Meier curves (log-rank P=0.045). Conclusions RV systolic dysfunction is frequently present in patients with Duchenne muscular dystrophy and is associated with increased risk of cardiac events, irrespective of left ventricular dysfunction and mechanical ventilation. Registration URL: https://www.clinicaltrials.org; unique identifier: NCT02501083.
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Affiliation(s)
- Abdallah Fayssoil
- Cardiology DepartmentAssistance Publique des Hôpitaux de Paris (AP‐HP), Raymond Poincaré HospitalGarchesFrance
- INSERM U1179, END‐ICAPMontigny‐le‐BretonneuxFrance
- Cardiology Department, Centre de référence des cardiomyopathies et des troubles du rythme cardiaque héréditaires ou raresAP‐HP, Ambroise Paré Hospital, Université de Versailles‐Saint Quentin (UVSQ)Boulogne‐BillancourtFrance
- Service de Réanimation médicale et unité de ventilation à domicileCHU Raymond Poincaré, APHP, UVSQGarchesFrance
| | - Nicolas Mansencal
- Cardiology Department, Centre de référence des cardiomyopathies et des troubles du rythme cardiaque héréditaires ou raresAP‐HP, Ambroise Paré Hospital, Université de Versailles‐Saint Quentin (UVSQ)Boulogne‐BillancourtFrance
- INSERM U‐1018, Centre de recherche en Epidémiologie et Santé des Populations (CESP)Equipe Epidémiologie Clinique, UVSQVillejuifFrance
| | - Lee S. Nguyen
- Department of PharmacologySorbonne University, INSERM CIC Paris‐Est, AP‐HP, ICAN, Regional Pharmacovigilance Centre, Pitié‐Salpêtrière HospitalParisFrance
- CMC Ambroise Paré, Research & Innovation (RICAP)Neuilly‐sur‐SeineFrance
| | - Olivier Nardi
- Service de Réanimation médicale et unité de ventilation à domicileCHU Raymond Poincaré, APHP, UVSQGarchesFrance
| | - Rabah Ben Yaou
- Institut de Myologie, CHU Pitié SalpetrièreParisFrance
- Centre de Recherche en MyologieSorbonne Universités, UPMC Univ Paris 06, INSERM UMRS974, Institut de Myologie, G.H. Pitié SalpêtrièreParisFrance
- Laboratoire de biochimie et génétique moléculairehôpital Cochin, AP‐HP, université Paris Descartes‐Sorbonne Paris CitéParisFrance
| | - France Leturcq
- Institut de Myologie, CHU Pitié SalpetrièreParisFrance
- Centre de Recherche en MyologieSorbonne Universités, UPMC Univ Paris 06, INSERM UMRS974, Institut de Myologie, G.H. Pitié SalpêtrièreParisFrance
- Laboratoire de biochimie et génétique moléculairehôpital Cochin, AP‐HP, université Paris Descartes‐Sorbonne Paris CitéParisFrance
| | - Helge Amthor
- Service de Pédiatrie, CHU Raymond Poincaré, APHPUniversité de Versailles saint Quentin en YvelinesGarchesFrance
| | - Karim Wahbi
- Cardiology DepartmentAP‐HP, Cochin HospitalParisFrance
- Université Paris Descartes‐Sorbonne Paris CitéParisFrance
| | - Henri Marc Becane
- Service de NeurologieCHU Raymond Poincaré, APHP, Université de Versailles Saint Quentin en YvelinesGarchesFrance
| | - Frederic Lofaso
- Service de Physiologie, Explorations fonctionnelles, CHU Raymond Poincaré, APHPUniversité de Versailles saint Quentin en YvelinesGarchesFrance
| | - Helene Prigent
- Service de Physiologie, Explorations fonctionnelles, CHU Raymond Poincaré, APHPUniversité de Versailles saint Quentin en YvelinesGarchesFrance
| | - Guillaume Bassez
- APHP, Sorbonne Université, Centre de référence neuro musculaire Paris EstParisFrance
- Institut de MyologieHôpital Universitaire Pitié SalpetrièreParisFrance
| | - Anthony Behin
- APHP, Sorbonne Université, Centre de référence neuro musculaire Paris EstParisFrance
- Institut de MyologieHôpital Universitaire Pitié SalpetrièreParisFrance
| | - Tanya Stojkovic
- APHP, Sorbonne Université, Centre de référence neuro musculaire Paris EstParisFrance
- Institut de MyologieHôpital Universitaire Pitié SalpetrièreParisFrance
| | - Bertrand Fontaine
- APHP, Sorbonne Université, Centre de référence neuro musculaire Paris EstParisFrance
- Institut de MyologieHôpital Universitaire Pitié SalpetrièreParisFrance
| | - Denis Duboc
- Cardiology DepartmentAP‐HP, Cochin HospitalParisFrance
- Université Paris Descartes‐Sorbonne Paris CitéParisFrance
| | - Olivier Dubourg
- Cardiology Department, Centre de référence des cardiomyopathies et des troubles du rythme cardiaque héréditaires ou raresAP‐HP, Ambroise Paré Hospital, Université de Versailles‐Saint Quentin (UVSQ)Boulogne‐BillancourtFrance
| | - Bernard Clair
- Service de Réanimation médicale et unité de ventilation à domicileCHU Raymond Poincaré, APHP, UVSQGarchesFrance
| | - Pascal Laforet
- Service de NeurologieCHU Raymond Poincaré, APHP, Université de Versailles Saint Quentin en YvelinesGarchesFrance
| | - Djillali Annane
- Service de Réanimation médicale et unité de ventilation à domicileCHU Raymond Poincaré, APHP, UVSQGarchesFrance
| | - David Orlikowski
- Service de Réanimation médicale et unité de ventilation à domicileCHU Raymond Poincaré, APHP, UVSQGarchesFrance
- Centre d’Investigation clinique et Innovation technologique CIC 14.29, INSERMGarchesFrance
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Hansen-Flaschen J, Ackrivo J. Practical Guide to Management of Long-Term Noninvasive Ventilation for Adults With Chronic Neuromuscular Disease. Respir Care 2023; 68:1123-1157. [PMID: 36922023 PMCID: PMC10353174 DOI: 10.4187/respcare.10349] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 12/19/2022] [Indexed: 03/17/2023]
Abstract
Recent technological advances in respiratory support and monitoring have dramatically enhanced the utility of long-term noninvasive ventilation (NIV). Improved quality of life and prolonged survival have been demonstrated for several common chronic neuromuscular diseases. Many adults with progressive neuromuscular respiratory disease can now comfortably maintain normal ventilation at home to near total respiratory muscle paralysis without needing a tracheostomy. However, current practice in many communities falls short of that potential. Mastery of the new technology calls for detailed awareness of the respiratory cycle; expert knowledge of mechanical devices, facial interfaces, and quantitative monitoring tools for home ventilation; and a willingness to stay current in a rapidly expanding body of clinical research. The depth and breadth of the expertise required to manage home assisted ventilation has given rise to a new focused medical subspecialty in chronic respiratory failure at the interface between pulmonology, critical care, and sleep medicine. For clinicians seeking pragmatic "how to" guidance, this primer presents a comprehensive, physician-directed management approach to long-term NIV of adults with chronic neuromuscular respiratory disease. Bi-level devices, portable ventilators, ventilation modalities, terminology, and monitoring strategies are reviewed in detail. Building on that knowledge base, we present a step-by-step guide to initiation, refinement, and maintenance of home NIV tailored to patient-centered goals of therapy. The quantitative approach recommended incorporates routine monitoring of home ventilation using technologies that have only recently become widely available including cloud-based device telemonitoring and noninvasive measurements of blood gases. Strategies for troubleshooting and problem solving are included.
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Affiliation(s)
- John Hansen-Flaschen
- Department of Medicine, Pulmonary, Allergy, and Critical Care Division, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.
| | - Jason Ackrivo
- Department of Medicine, Pulmonary, Allergy, and Critical Care Division, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
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Delorme M, Leotard A, Lebret M, Lefeuvre C, Hazenberg A, Pallero M, Nickol AH, Hannan LM, Boentert M, Yüksel A, Windisch W, Howard ME, Hart N, Wijkstra PJ, Prigent H, Pepin JL, Lofaso F, Khouri C, Borel JC. Effect of Intensity of Home Noninvasive Ventilation in Individuals With Neuromuscular and Chest Wall Disorders: A Systematic Review and Meta-Analysis of Individual Participant Data. Arch Bronconeumol 2023:S0300-2896(23)00156-4. [PMID: 37217384 DOI: 10.1016/j.arbres.2023.05.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 05/04/2023] [Accepted: 05/05/2023] [Indexed: 05/24/2023]
Abstract
INTRODUCTION Home noninvasive ventilation (NIV), targeting a reduction of carbon dioxide with a combination of sufficient inspiratory support and backup-rate improves outcomes in patients with chronic obstructive pulmonary disease. The aim of this systematic review with individual participant data (IPD) meta-analysis was to evaluate the effects of intensity of home NIV on respiratory outcomes in individuals with slowly progressive neuromuscular (NMD) or chest-wall disorders (CWD). METHODS Controlled, non-controlled and cohort studies indexed between January-2000 and December-2020 were sought from Medline, Embase and the Cochrane Central Register. Outcomes were diurnal PaCO2, PaO2, daily NIV usage, and interface type (PROSPERO-CRD 42021245121). NIV intensity was defined according to the Z-score of the product of pressure support (or tidal volume) and backup-rate. RESULTS 16 eligible studies were identified; we obtained IPD for 7 studies (176 participants: 113-NMD; 63-CWD). The reduction in PaCO2 was greater with higher baseline PaCO2. NIV intensity per se was not associated with improved PaCO2 except in individuals with CWD and the most severe baseline hypercapnia. Similar results were found for PaO2. Daily NIV usage was associated with improvement in gas exchange but not with NIV intensity. No association between NIV intensity and interface type was found. CONCLUSION Following home NIV initiation in NMD or CWD patients, no relationship was observed between NIV intensity and PaCO2, except in individuals with the most severe CWD. The amount of daily NIV usage, rather than intensity, is key to improving hypoventilation in this population during the first few months after introduction of therapy.
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Affiliation(s)
- Mathieu Delorme
- Université Paris-Saclay, UVSQ, ERPHAN, 78000 Versailles, France; AFM-Téléthon, Direction des Actions Médicales, 91000 Evry, France
| | - Antoine Leotard
- Service de Physiologie et explorations fonctionnelles, GHU APHP - Paris Saclay - Hôpital Raymond Poincaré (APHP), 92380 Garches, France; Université Paris-Saclay, UVSQ, INSERM U1179, Equipe 3 «END:ICAP», 78000 Versailles, France
| | - Marius Lebret
- Université Paris-Saclay, UVSQ, ERPHAN, 78000 Versailles, France
| | - Claire Lefeuvre
- Neurology Department, Raymond Poincaré University Hospital, Garches, APHP, France; Nord-Est-Ile-de-France Neuromuscular Reference Center, FHU PHENIX, France
| | - Anda Hazenberg
- University of Groningen, University Medical Center Groningen, Department of Pulmonology and Tuberculosis, Department of Home Mechanical Ventilation, Groningen, The Netherlands; University of Groningen, University Medical Center Groningen, GRIAC Research Institute, The Netherlands
| | - Mercedes Pallero
- Respiratory Medicine Department, Hospital Universitari Vall d'Hebron, Barcelona, Spain; CIBER de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Annabel H Nickol
- Oxford Centre for Respiratory Medicine, Oxford University Hospital NHS Foundation Trust, Oxford OX3 7LE, UK; The Royal Brompton Hospital, London SW3 6NP, UK
| | - Liam M Hannan
- Department of Respiratory Medicine, Northern Health, Melbourne, Victoria, Australia; Institute for Breathing and Sleep, Melbourne, Australia; Dept of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, Australia
| | - Matthias Boentert
- Department of Neurology, Münster University Hospital (UKM), Münster, Germany; Department of Medicine, UKM-Marienhospital Steinfurt, Steinfurt, Germany
| | - Aycan Yüksel
- Ufuk University, Faculty of Medicine, Rıdvan Ege Hospital, Department of Pulmonology and Tuberculosis, Ankara, Turkey
| | - Wolfram Windisch
- Cologne Merheim Hospital, Department of Pneumology, Kliniken der Stadt Köln, gGmbH, Witten/Herdecke University, Germany
| | - Mark E Howard
- Institute for Breathing and Sleep, Melbourne, Australia; Dept of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, Australia; Turner Institute for Brain and Mental Health, Monash University, Melbourne, Australia
| | - Nicholas Hart
- Lane Fox Clinical Respiratory Physiology Research Centre, Guy's and St Thomas' NHS Foundation Trust, London, UK; Centre for Human and Applied Physiological Science, King's College London, London, UK
| | - Peter J Wijkstra
- University of Groningen, University Medical Center Groningen, Department of Pulmonology and Tuberculosis, Department of Home Mechanical Ventilation, Groningen, The Netherlands; University of Groningen, University Medical Center Groningen, GRIAC Research Institute, The Netherlands
| | - Hélène Prigent
- Service de Physiologie et explorations fonctionnelles, GHU APHP - Paris Saclay - Hôpital Raymond Poincaré (APHP), 92380 Garches, France; Université Paris-Saclay, UVSQ, INSERM U1179, Equipe 3 «END:ICAP», 78000 Versailles, France; FHU Phenix - GHU APHP - Paris Saclay - Hôpital Raymond Poincaré (APHP), 92380 Garches, France
| | - Jean-Louis Pepin
- HP2 (Hypoxia and Physio-Pathologies) Laboratory, Inserm (French National Institute of Health and Medical Research) U1300, University Grenoble Alpes, Grenoble, France; EFCR (Cardiovascular and Respiratory Function) Laboratory, Grenoble Alpes University Hospital, Grenoble, France
| | - Frederic Lofaso
- Université Paris-Saclay, UVSQ, ERPHAN, 78000 Versailles, France; Service de Physiologie et explorations fonctionnelles, GHU APHP - Paris Saclay - Hôpital Raymond Poincaré (APHP), 92380 Garches, France
| | - Charles Khouri
- HP2 (Hypoxia and Physio-Pathologies) Laboratory, Inserm (French National Institute of Health and Medical Research) U1300, University Grenoble Alpes, Grenoble, France; Centre Régional de pharmacovigilance, Centre d'Investigation Clinique, CHU Grenoble Alpes, France
| | - Jean-Christian Borel
- HP2 (Hypoxia and Physio-Pathologies) Laboratory, Inserm (French National Institute of Health and Medical Research) U1300, University Grenoble Alpes, Grenoble, France; Research and Development Department, AGIR à dom Association, 36 Bd du Vieux Chêne, 38240 Meylan, France.
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Carlucci A, Fusar Poli B. Getting It Right in Restrictive Lung Disease. J Clin Med 2023; 12:jcm12103353. [PMID: 37240459 DOI: 10.3390/jcm12103353] [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: 02/27/2023] [Revised: 04/26/2023] [Accepted: 05/04/2023] [Indexed: 05/28/2023] Open
Abstract
Restrictive lung disease (predominantly in patients with neuromuscular disease (NMD) and ribcage deformity) may induce chronic hypercapnic respiratory failure, which represents an absolute indication to start home NIV (HNIV). However, in the early phases of NMD, patients may present only diurnal symptoms or orthopnoea and sleep disturbances with normal diurnal gas exchange. The evaluation of respiratory function decline may predict the presence of sleep disturbances (SD) and nocturnal hypoventilation that can be respectively diagnosed with polygraphy and PCO2 transcutaneous monitoring. If nocturnal hypoventilation and/or apnoea/hypopnea syndrome are detected, HNIV should be introduced. Once HNIV has been started, adequate follow-up is mandatory. The ventilator's built-in software provides important information about patient adherence and eventual leaks to correct. Detailed data about pressure and flow curves may suggest the presence of upper airway obstruction (UAO) during NIV that may occur with or without decrease in respiratory drive. Etiology and treatment of these two different forms of UAO are different. For this reason, in some circumstances, it might be useful to perform a polygraph. PtCO2 monitoring, together with pulse-oximetry, seem to be very important tools to optimize HNIV. The role of HNIV in neuromuscular disease is to correct diurnal and nocturnal hypoventilation with the consequence of improving quality of life, symptoms, and survival.
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Affiliation(s)
- Annalisa Carlucci
- Dipartimento di Medicina e Chirurgia, Università Insubria, 21100 Varese, Italy
| | - Barbara Fusar Poli
- Pneumologia Riabilitativa Istituti Clinici Scientifici Maugeri, 27100 Pavia, Italy
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7
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Monitoring Systems in Home Ventilation. J Clin Med 2023; 12:jcm12062163. [PMID: 36983171 PMCID: PMC10054628 DOI: 10.3390/jcm12062163] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 03/05/2023] [Accepted: 03/08/2023] [Indexed: 03/16/2023] Open
Abstract
Non-invasive ventilation (NIV) is commonly used at home for patient with nocturnal hypoventilation caused by a chronic respiratory failure. Monitoring NIV is required to optimize the ventilator settings when the lung condition changes over time, and to detect common problems such as unintentional leaks, upper airway obstructions, and patient–ventilator asynchronies. This review describes the accuracy and limitations of the data recorded by the ventilator. To efficiently interpret this huge amount of data, clinician assess the daily use and regularity of NIV utilization, the unintentional leaks and their repartition along the NIV session, the apnea–hypopnea index and the flow waveform, and the patient–ventilator synchrony. Nocturnal recordings of gas exchanges are also required to detect nocturnal alveolar hypoventilation. This review describes the indication, validity criteria, and interpretation of nocturnal oximetry and transcutaneous capnography. Polygraphy and polysomnography are indicated in specific cases to characterize upper airway obstruction. Telemonitoring of the ventilator is a useful tool that should be integrated in the monitoring strategy. The technical solution, information, and limitations are discussed. In conclusion, a basic monitoring package is recommended for all patients complemented by advanced monitoring for specific cases.
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8
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Boentert M. [Sleep disorders in patients with neuromuscular diseases]. SOMNOLOGIE 2023; 27:64-73. [PMID: 36789371 PMCID: PMC9912238 DOI: 10.1007/s11818-023-00401-y] [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] [Accepted: 01/27/2023] [Indexed: 02/12/2023]
Abstract
Neuromuscular diseases (NMD) may affect skeletal muscles, peripheral nerves, or motor endplates. Clinical symptoms comprise muscle weakness, which is often progressive, but also sensory disturbances, and primary or secondary pain. Sleep disturbances in NMD may result from insomnia due to immobility, pain, or sleep-related leg muscle cramps, but also restless legs syndrome and sleep-disordered breathing. Many NMD predispose to obstructive sleep apnea or progressive respiratory muscle weakness, which first manifests as sleep-related hypoventilation and eventually leads to chronic hypercapnic respiratory failure. The latter is crucial for overall prognosis in muscular dystrophies and myopathies, but even more so in motor neuron diseases such as amyotrophic lateral sclerosis and spinal muscular atrophy.
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Affiliation(s)
- Matthias Boentert
- Klinik für Neurologie mit Institut für Translationale Neurologie, Universitätsklinikum Münster (UKM), Albert-Schweitzer-Campus 1, Gebäude A1, 48149 Münster, Deutschland.,Klinik für Innere Medizin, Bereich Neurologie, UKM-Marienhospital, Steinfurt, Deutschland
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9
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Delorme M, Leroux K, Leotard A, Boussaid G, Prigent H, Louis B, Lofaso F. Noninvasive Ventilation Automated Technologies: A Bench Evaluation of Device Responses to Sleep-Related Respiratory Events. Respir Care 2023; 68:18-30. [PMID: 36220193 PMCID: PMC9993515 DOI: 10.4187/respcare.09807] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Noninvasive ventilation (NIV) is the reference standard treatment for most situations of chronic respiratory failure. NIV settings must be titrated to both preserve upper-airway patency and control hypoventilation. Automatic adjustment of pressure support (PS) and expiratory positive airway pressure (EPAP) may facilitate the initiation and follow-up of domiciliary NIV. However, whether the automatic-adjustment algorithms embedded into current devices accurately detect, respond to, and score common sleep-related respiratory events remains unclear. METHODS A bench was set up to simulate central hypopnea (CH), central apnea (CA), obstructive hypopnea (OH), and obstructive apnea (OA). Four home ventilators were evaluated, with their dedicated modes for automatic PS and EPAP adjustment. RESULTS All 4 devices increased PS during CH, CA, and OH. However, PS adjustment varied widely in magnitude, with tidal volumes within 100 ± 20% of the target being provided by only 3 devices for CH, one for CA, and one for OH. Two devices increased EPAP for OH and 3 for OA, including one that also increased EPAP for CA. Only 2 devices scored residual hypopnea after simulated CA, and only one scored a residual event after OH. One device scored no event. CONCLUSIONS Current NIV devices differed markedly in their responses to, and reporting of, standardized sleep-related respiratory events. Further improvements in embedded NIV algorithms are needed to allow more widespread out-of-laboratory initiation and follow-up of NIV.
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Affiliation(s)
| | | | - Antoine Leotard
- Service de physiologie - explorations fonctionnelles, Unité des pathologies du sommeil, AP-HP, Hôpital Raymond Poincaré, Garches, France; and Université Paris-Saclay, UVSQ, INSERM U1179, Equipe 3, Versailles, France
| | | | - Helene Prigent
- Service de physiologie - explorations fonctionnelles, Unité des pathologies du sommeil, AP-HP, Hôpital Raymond Poincaré, Garches, France; and Université Paris-Saclay, UVSQ, INSERM U1179, Equipe 3, Versailles, France
| | - Bruno Louis
- INSERM, U955, Université Paris Est Créteil, Faculté de Médecine, CNRS ERL 7000, Créteil, France
| | - Frederic Lofaso
- Université Paris-Saclay, UVSQ, ERPHAN, Versailles, France; and Service de physiologie - explorations fonctionnelles, Unité des pathologies du sommeil, AP-HP, Hôpital Raymond Poincaré, Garches, France
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10
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Non-invasive ventilation in neuromuscular diseases: should we use higher levels of ventilatory support? Sleep Breath 2022; 27:673-677. [DOI: 10.1007/s11325-022-02658-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/03/2022] [Accepted: 06/09/2022] [Indexed: 10/18/2022]
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11
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Sleep and Hypoventilation. Respir Med 2022. [DOI: 10.1007/978-3-030-93739-3_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Freitas C, Serino M, Araújo D, Pinto T, Van Zeller M, Gonçalves M, Drummond M. Long-term home non-invasive ventilation in chronic hypercapnic chronic obstructive pulmonary disease patients: Real-world impact on lung function, acute exacerbations and survival. CLINICAL RESPIRATORY JOURNAL 2021; 15:1130-1138. [PMID: 34224645 DOI: 10.1111/crj.13419] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/18/2021] [Accepted: 06/30/2021] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Although long-term home non-invasive ventilation (H-NIV) has been used among chronic hypercapnic COPD patients, its clinical benefit is still on debate. We aim to assess the impact of H-NIV in chronic hypercapnic COPD patients. METHODS COPD patients who initiated H-NIV between January 2010 and December 2017 were included. Patients with concomitant respiratory disorders were excluded. Acute exacerbation (AE) before and 2 years after H-NIV initiation was assessed as main outcome. Secondary outcomes included lung function and gas exchange parameters. Survival since H-NIV initiation was determined, and factors related with survival were explored. RESULTS Seventy-two patients were enrolled. A decrease in partial pressure of carbon dioxide (PaCO2 ) in arterial blood (p < 0.001) and an improvement of partial pressure of oxygen (PaO2 ) (p < 0.001) were achieved using a high-intensity H-NIV. Regarding lung function, residual volume (RV) reduced (p = 0.010) and forced-expiratory volume in 1 s (FEV1 ) improved (p = 0.043) after H-NIV initiation. No significant differences in 6-min walking test (6MWT) were found. Compared with the year before H-NIV initiation, the number of AE diminished in the first and in the second years of follow-up (p < 0.001). The median survival was 79.0 months (95% confidence interval [CI], 52.9-105.1), and the covered distance in 6MWT predicted survival (hazard ratio [HR] = 0.026, p = 0.003) in the multivariate analysis. CONCLUSIONS High-intensity H-NIV significantly improved FEV1 and hyperinflation, decreased frequency of AEs and led to a remarkable median survival, which was independently predicted by the walking distance in 6MWT.
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Affiliation(s)
- Cláudia Freitas
- Pulmonology Department, Centro Hospitalar e Universitário de São João, Porto, Portugal.,Faculty of Medicine, University of Porto, Porto, Portugal
| | - Mariana Serino
- Pulmonology Department, Centro Hospitalar e Universitário de São João, Porto, Portugal
| | - David Araújo
- Pulmonology Department, Centro Hospitalar e Universitário de São João, Porto, Portugal
| | - Tiago Pinto
- Sleep and Non-invasive Ventilation Unit, Centro Hospitalar e Universitário de São João, Porto, Portugal.,Faculty of Medicine, University of Porto, Porto, Portugal
| | - Mafalda Van Zeller
- Sleep and Non-invasive Ventilation Unit, Centro Hospitalar e Universitário de São João, Porto, Portugal.,Faculty of Medicine, University of Porto, Porto, Portugal.,i3S - Institute for Research and Innovation in Health/Instituto de Investigação e Inovação em Saúde da Universidade do Porto, Porto, Portugal
| | - Miguel Gonçalves
- Pulmonology Department, Centro Hospitalar e Universitário de São João, Porto, Portugal.,Sleep and Non-invasive Ventilation Unit, Centro Hospitalar e Universitário de São João, Porto, Portugal.,Faculty of Medicine, University of Porto, Porto, Portugal.,i3S - Institute for Research and Innovation in Health/Instituto de Investigação e Inovação em Saúde da Universidade do Porto, Porto, Portugal.,Intensive Care Medicine Department, Centro Hospitalar e Universitário São João, Porto, Portugal
| | - Marta Drummond
- Sleep and Non-invasive Ventilation Unit, Centro Hospitalar e Universitário de São João, Porto, Portugal.,Faculty of Medicine, University of Porto, Porto, Portugal.,i3S - Institute for Research and Innovation in Health/Instituto de Investigação e Inovação em Saúde da Universidade do Porto, Porto, Portugal
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13
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Engel M, Glatz C, Helmle C, Young P, Dräger B, Boentert M. Respiratory parameters on diagnostic sleep studies predict survival in patients with amyotrophic lateral sclerosis. J Neurol 2021; 268:4321-4331. [PMID: 33880611 PMCID: PMC8505303 DOI: 10.1007/s00415-021-10563-0] [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: 01/27/2021] [Revised: 04/10/2021] [Accepted: 04/13/2021] [Indexed: 11/24/2022]
Abstract
OBJECTIVE In amyotrophic lateral sclerosis (ALS), respiratory muscle involvement and sleep-disordered breathing relate to worse prognosis. The present study investigated whether respiratory outcomes on first-ever sleep studies predict survival in patients with ALS, specifically taking into account subsequent initiation of non-invasive ventilation (NIV). METHODS From patients with ALS, baseline sleep study records, transcutaneous capnometry, early morning blood gas analysis, survival data and clinical disease characteristics were retrospectively analyzed. Patients were stratified according to whether enduring NIV was consecutively established ("NIV(+)") or not ("NIV(-)"). RESULTS Among the study cohort (n = 158, 72 female, 51 with bulbar onset ALS, 105 deceased) sleep-disordered breathing was present at baseline evaluation in 97 patients. Early morning base excess (EMBE) > 2 mmol/l predicted nocturnal hypercapnia. Ninety-five patients were NIV(+) and 63 were NIV(-). Survival from baseline sleep studies was significantly reduced in NIV(-) but not in NIV(+) patients with nocturnal CO2 tension ≥ 50 mmHg, apnea hypopnea index ≥ 5/h, and EMBE > 2 mmol/l. Hazard ratio for EMBE > 2 mmol/l was increased in NIV(-) patients only, and EMBE independently predicted survival in both NIV(-) and NIV(+) patients. Furthermore, EMBE on baseline sleep studies was the only predictor for survival from symptom onset, and hazard ratio for shorter survival was markedly higher in the NIV(-) than the NIV(+) group (2.85, p = 0.005, vs. 1.71, p = 0.042). INTERPRETATION In patients with ALS, EMBE > 2 mmol/l predicts nocturnal hypercapnia and shorter survival. Negative effects of sleep-disordered breathing on survival are statistically abolished by sustained NIV.
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Affiliation(s)
- Markus Engel
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, Münster, Germany
| | - Christian Glatz
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, Münster, Germany
| | - Cornelia Helmle
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, Münster, Germany
| | - Peter Young
- Department of Neurology, Medical Park Reithofpark, Bad Feilnbach, Germany
| | - Bianca Dräger
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, Münster, Germany.,Department of Medicine, UKM Marienhospital Steinfurt, Steinfurt, Germany
| | - Matthias Boentert
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, Münster, Germany. .,Department of Medicine, UKM Marienhospital Steinfurt, Steinfurt, Germany.
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14
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Mycroft K, Nasiłowski J, Klimiuk J, Przybyłowski T. Complex home assessment of long-term non-invasive ventilation efficacy using transcutaneous monitoring of PCO 2 and polygraphy - A feasibility study. Adv Med Sci 2021; 66:105-112. [PMID: 33461098 DOI: 10.1016/j.advms.2021.01.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 10/21/2020] [Accepted: 01/04/2021] [Indexed: 11/17/2022]
Abstract
PURPOSE Home non-invasive ventilation (HNIV) during sleep is a standard treatment for chronic hypercapnic respiratory failure (CHRF). The aim of this study was to evaluate the feasibility of the complex overnight assessment of HNIV in adults performed at home and the efficacy of HNIV after one year of treatment. METHODS Stable patients with CHRF on HNIV for more than 12 months had unattended polygraphy (PG) with transcutaneous monitoring of PCO2 (tcPCO2) at home during one night. The recording quality was regarded as excellent when 100% and good if 80-99% of the analysis time was registered. The following efficacy criteria were approved: (1) SpO2<90% for <10% of analysis time, (2) increase in PtcCO2 ≤7.5 mmHg between baseline and average value at night, (3) apnea-hypopnea index (AHI) ≤5/h. RESULTS Eighteen patients with CHRF (median age 66 [60-74] years, 10 female) were included. The quality of the PG tracings was good to excellent in 16 (89%) patients and the quality of the tcPCO2 data was good to excellent in 14 (78%) patients. There was no difference in the quality of tcPCO2 between patients who lived alone and those who lived with family (100 [50-100]% vs. 100 [90-100]% of analysis time, respectively). Only 4 (22%) patients fulfilled all three efficacy criteria. CONCLUSIONS Home-based monitoring using PG and tcPCO2 is a feasible and adequate tool to assess the efficacy of HNIV. In most of the patients on HNIV for more than 12 months, the treatment was not effective based on the predefined efficacy criteria.
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Affiliation(s)
- Katarzyna Mycroft
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Warsaw, Poland.
| | - Jacek Nasiłowski
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Warsaw, Poland
| | - Joanna Klimiuk
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Warsaw, Poland
| | - Tadeusz Przybyłowski
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Warsaw, Poland
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15
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Georges M, Rabec C, Monin E, Aho S, Beltramo G, Janssens JP, Bonniaud P. Monitoring of noninvasive ventilation: comparative analysis of different strategies. Respir Res 2020; 21:324. [PMID: 33302961 PMCID: PMC7725884 DOI: 10.1186/s12931-020-01586-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 11/24/2020] [Indexed: 12/14/2022] Open
Abstract
Background Noninvasive ventilation (NIV) represents an effective treatment for chronic respiratory failure. However, empirically determined NIV settings may not achieve optimal ventilatory support. Therefore, the efficacy of NIV should be systematically monitored. The minimal recommended monitoring strategy includes clinical assessment, arterial blood gases (ABG) and nocturnal transcutaneous pulsed oxygen saturation (SpO2). Polysomnography is a theoretical gold standard but is not routinely available in many centers. Simple tools such as transcutaneous capnography (TcPCO2) or ventilator built-in software provide reliable informations but their role in NIV monitoring has yet to be defined. The aim of our work was to compare the accuracy of different combinations of tests to assess NIV efficacy. Methods This retrospective comparative study evaluated the efficacy of NIV in consecutive patients through four strategies (A, B, C and D) using four different tools in various combinations. These tools included morning ABG, nocturnal SpO2, TcPCO2 and data provided by built-in software via a dedicated module. Strategy A (ABG + nocturnal SpO2), B (nocturnal SpO2 + TcPCO2) and C (TcPCO2 + builtin software) were compared to strategy D, which combined all four tools (NIV was appropriate if all four tools were normal). Results NIV was appropriate in only 29 of the 100 included patients. Strategy A considered 53 patients as appropriately ventilated. Strategy B considered 48 patients as appropriately ventilated. Strategy C misclassified only 6 patients with daytime hypercapnia. Conclusion Monitoring ABG and nocturnal SpO2 is not enough to assess NIV efficacy. Combining data from ventilator built-in software and TcPCO2 seems to represent the best strategy to detect poor NIV efficacy. Trialregistration Institutional Review Board of the Société de Pneumologie de Langue Française (CEPRO 2016 Georges)
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Affiliation(s)
- Marjolaine Georges
- Department of Pulmonary Medicine and Intensive Care Unit, University Hospital, Dijon, France. .,University Burgundy Franche-Comté, Dijon, France. .,Centre Des Sciences du Goût Et de L'Alimentation, UMR 6265 CNRS 1234 INRA, University Burgundy Franche-Comté, Dijon, France. .,Service de Pneumologie Et Soins Intensifs Respiratoires, Centre Hospitalier Et Universitaire de Dijon, Hôpital François Mitterrand, 14 rue Paul Gaffarel, 21079, Dijon, France.
| | - Claudio Rabec
- Department of Pulmonary Medicine and Intensive Care Unit, University Hospital, Dijon, France
| | - Elise Monin
- Department of Pulmonary Medicine and Intensive Care Unit, University Hospital, Dijon, France
| | - Serge Aho
- University Burgundy Franche-Comté, Dijon, France.,Department of Epidemiology, Dijon University Hospital, Dijon, France
| | - Guillaume Beltramo
- Department of Pulmonary Medicine and Intensive Care Unit, University Hospital, Dijon, France
| | - Jean-Paul Janssens
- Division of Pulmonary Diseases, Geneva University Hospitals, Geneva, Switzerland
| | - Philippe Bonniaud
- Department of Pulmonary Medicine and Intensive Care Unit, University Hospital, Dijon, France.,University Burgundy Franche-Comté, Dijon, France.,INSERM U1231, University Burgundy Franche-Comté, Dijon, France
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16
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Senel GB, Arkali NB, Saltik S, Yalcinkaya C, Karadeniz D. The effects of non-invasive mechanical ventilation on cardiac autonomic dysfunction in spinal muscular atrophy. Neuromuscul Disord 2020; 30:845-850. [PMID: 32972779 DOI: 10.1016/j.nmd.2020.09.001] [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: 04/26/2020] [Revised: 07/17/2020] [Accepted: 09/02/2020] [Indexed: 10/23/2022]
Abstract
In patients with spinal muscular atrophy (SMA), obstructive sleep apnea syndrome (OSAS) constitutes an important cause of cardiovascular morbidity and mortality. We investigated heart rate variability (HRV) to evaluate the effects of non-invasive mechanical ventilation on cardiac autonomic dysfunction in patients with SMA and OSAS. Six patients with SMA (type 1 and 2) and six age- and sex-matched healthy children were consecutively enrolled. A whole-night diagnostic polysomnography was performed, and SMA patients with OSAS were given non-invasive mechanical ventilation therapy. HRV analysis was performed on the basis of whole-night electrocardiography recordings via a computer-base program. Apnea-hypopnea index (AHI) was 9.2 ± 6.2/hr in SMA patients, while it was 0.4 ± 0.5/hr in controls (p = 0.036). All SMA patients had OSAS, while none of the controls had OSAS (p = 0.012). Mean percentage of successive R wave of QRS complex (R-R) intervals>50 ms was significantly lower in SMA patients than those in controls (p = 0.031). Significant correlations were found between AHI and high-frequency power, low/high-frequency ratio in wakefulness and in sleep (p<0.05). Repeated HRV analysis in SMA patients following OSAS therapy showed significant reductions in average R-R duration (p = 0.028) and percentage of successive R-R intervals>50 ms (p = 0.043). Our study demonstrates the beneficial effects of non-invasive mechanical ventilation on cardiac autonomic dysfunction in SMA patients with OSAS.
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Affiliation(s)
- Gulcin Benbir Senel
- Cerrahpasa Faculty of Medicine, Department of Neurology, Istanbul University-Cerrahpasa, Istanbul, Turkey.
| | - N Burcu Arkali
- Cerrahpasa Faculty of Medicine, Department of Neurology, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Sema Saltik
- Cerrahpasa Faculty of Medicine, Department of Pediatrics, Division of Child Neurology, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Cengiz Yalcinkaya
- Cerrahpasa Faculty of Medicine, Department of Neurology, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Derya Karadeniz
- Cerrahpasa Faculty of Medicine, Department of Neurology, Istanbul University-Cerrahpasa, Istanbul, Turkey
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17
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Patout M, Lhuillier E, Kaltsakas G, Benattia A, Dupuis J, Arbane G, Declercq PL, Ramsay M, Marino P, Molano LC, Artaud-Macari E, Viacroze C, Steier J, Douiri A, Muir JF, Cuvelier A, Murphy PB, Hart N. Long-term survival following initiation of home non-invasive ventilation: a European study. Thorax 2020; 75:965-973. [PMID: 32895315 DOI: 10.1136/thoraxjnl-2019-214204] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 05/25/2020] [Accepted: 05/26/2020] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Although home non-invasive ventilation (NIV) is increasingly used to manage patients with chronic ventilatory failure, there are limited data on the long-term outcome of these patients. Our aim was to report on home NIV populations and the long-term outcome from two European centres. METHODS Cohort analysis including all patients established on home NIV from two European centres between 2008 and 2014. RESULTS Home NIV was initiated in 1746 patients to treat chronic ventilatory failure caused by (1) obesity hypoventilation syndrome±obstructive sleep apnoea (OHS±OSA) (29.5%); (2) neuromuscular disease (NMD) (22.7%); and (3) obstructive airway diseases (OAD) (19.1%). Overall cohort median survival following NIV initiation was 6.6 years. Median survival varied by underlying aetiology of respiratory failure: rapidly progressive NMD 1.1 years, OAD 2.7 years, OHS±OSA >7 years and slowly progressive NMD >7 years. Multivariate analysis demonstrated higher mortality in patients with rapidly progressive NMD (HR 4.78, 95% CI 3.38 to 6.75), COPD (HR 2.25, 95% CI 1.64 to 3.10), age >60 years at initiation of home NIV (HR 2.41, 95% CI 1.92 to 3.02) and NIV initiation following an acute admission (HR 1.38, 95% CI 1.13 to 1.68). Factors associated with lower mortality were NIV adherence >4 hours per day (HR 0.64, 95% CI 0.51 to 0.79), OSA (HR 0.51, 95% CI 0.31 to 0.84) and female gender (HR 0.79, 95% CI 0.65 to 0.96). CONCLUSION The mortality rate following initiation of home NIV is high but varies significantly according to underlying aetiology of respiratory failure. In patients with chronic respiratory failure, initiation of home NIV following an acute admission and low levels of NIV adherence are poor prognostic features and may be amenable to intervention.
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Affiliation(s)
- Maxime Patout
- EA3830-GRHV, Institute for Research and Innovation in Biomedicine (IRIB) and Rouen University Hospital, Service de Pneumologie, Oncologie thoracique et Soins Intensifs Respiratoires, F 76000, Normandie Univ, UNIRouen, Rouen, France.,Lane Fox Clinical Respiratory Physiology Research Centre, Guy's and St Thomas' NHS Foundation Trust, London, UK.,Lane Fox Respiratory Service, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Elodie Lhuillier
- EA3830-GRHV, Institute for Research and Innovation in Biomedicine (IRIB) and Rouen University Hospital, Service de Pneumologie, Oncologie thoracique et Soins Intensifs Respiratoires, F 76000, Normandie Univ, UNIRouen, Rouen, France.,Lane Fox Clinical Respiratory Physiology Research Centre, Guy's and St Thomas' NHS Foundation Trust, London, UK.,Lane Fox Respiratory Service, Guy's and St Thomas' NHS Foundation Trust, London, UK.,Unité de recherche clinique, Centre Henri Becquerel, Rouen, Haute-Normandie, France
| | - Georgios Kaltsakas
- Lane Fox Clinical Respiratory Physiology Research Centre, Guy's and St Thomas' NHS Foundation Trust, London, UK.,Lane Fox Respiratory Service, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Amira Benattia
- EA3830-GRHV, Institute for Research and Innovation in Biomedicine (IRIB) and Rouen University Hospital, Service de Pneumologie, Oncologie thoracique et Soins Intensifs Respiratoires, F 76000, Normandie Univ, UNIRouen, Rouen, France
| | | | - Gill Arbane
- Lane Fox Clinical Respiratory Physiology Research Centre, Guy's and St Thomas' NHS Foundation Trust, London, UK.,Lane Fox Respiratory Service, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Pierre-Louis Declercq
- EA3830-GRHV, Institute for Research and Innovation in Biomedicine (IRIB) and Rouen University Hospital, Service de Pneumologie, Oncologie thoracique et Soins Intensifs Respiratoires, F 76000, Normandie Univ, UNIRouen, Rouen, France
| | - Michelle Ramsay
- Lane Fox Clinical Respiratory Physiology Research Centre, Guy's and St Thomas' NHS Foundation Trust, London, UK.,Lane Fox Respiratory Service, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Philip Marino
- Lane Fox Clinical Respiratory Physiology Research Centre, Guy's and St Thomas' NHS Foundation Trust, London, UK.,Lane Fox Respiratory Service, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Luis-Carlos Molano
- EA3830-GRHV, Institute for Research and Innovation in Biomedicine (IRIB) and Rouen University Hospital, Service de Pneumologie, Oncologie thoracique et Soins Intensifs Respiratoires, F 76000, Normandie Univ, UNIRouen, Rouen, France
| | - Elise Artaud-Macari
- EA3830-GRHV, Institute for Research and Innovation in Biomedicine (IRIB) and Rouen University Hospital, Service de Pneumologie, Oncologie thoracique et Soins Intensifs Respiratoires, F 76000, Normandie Univ, UNIRouen, Rouen, France
| | - Catherine Viacroze
- EA3830-GRHV, Institute for Research and Innovation in Biomedicine (IRIB) and Rouen University Hospital, Service de Pneumologie, Oncologie thoracique et Soins Intensifs Respiratoires, F 76000, Normandie Univ, UNIRouen, Rouen, France
| | - Joerg Steier
- Lane Fox Clinical Respiratory Physiology Research Centre, Guy's and St Thomas' NHS Foundation Trust, London, UK.,Lane Fox Respiratory Service, Guy's and St Thomas' NHS Foundation Trust, London, UK.,Centre for Human and Applied Physiological Sciences, King's College London, London, London, UK
| | - Abdel Douiri
- Guy's and St Thomas' NHS Trust and King's College London, National Institute for Health Research Comprehensive Biomedical Research Centre, London, UK
| | - Jean-Francois Muir
- EA3830-GRHV, Institute for Research and Innovation in Biomedicine (IRIB) and Rouen University Hospital, Service de Pneumologie, Oncologie thoracique et Soins Intensifs Respiratoires, F 76000, Normandie Univ, UNIRouen, Rouen, France
| | - Antoine Cuvelier
- EA3830-GRHV, Institute for Research and Innovation in Biomedicine (IRIB) and Rouen University Hospital, Service de Pneumologie, Oncologie thoracique et Soins Intensifs Respiratoires, F 76000, Normandie Univ, UNIRouen, Rouen, France
| | - Patrick Brian Murphy
- Lane Fox Clinical Respiratory Physiology Research Centre, Guy's and St Thomas' NHS Foundation Trust, London, UK .,Lane Fox Respiratory Service, Guy's and St Thomas' NHS Foundation Trust, London, UK.,Centre for Human and Applied Physiological Sciences, King's College London, London, London, UK
| | - Nicholas Hart
- Lane Fox Clinical Respiratory Physiology Research Centre, Guy's and St Thomas' NHS Foundation Trust, London, UK.,Lane Fox Respiratory Service, Guy's and St Thomas' NHS Foundation Trust, London, UK.,Centre for Human and Applied Physiological Sciences, King's College London, London, London, UK
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Abstract
PURPOSE OF REVIEW In amyotrophic lateral sclerosis (ALS), sleep disruption is frequently present and substantially adds to disease burden. This review aims to summarize current knowledge on causes, pathophysiology, and treatment of sleep disturbances in ALS. RECENT FINDINGS Motor neuron degeneration and muscle weakness may lead to muscle cramps, pain, spasticity, immobilization, restless legs, sleep-disordered breathing, and difficulties to clear secretions. Furthermore, existential fears and depression may promote insomnia. Sleep-disordered breathing, and nocturnal hypoventilation in particular, requires ventilatory support which meaningfully prolongs survival and improves health-related quality of life albeit respiratory failure is inevitable. Early indication for non-invasive ventilation can be achieved by inclusion of capnometry in diagnostic sleep studies. Sleep disruption is extremely common in ALS and may arise from different etiologies. The absence of causative therapeutic options for ALS underlines the importance of symptomatic and palliative treatment strategies that acknowledge sleep-related complaints.
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Affiliation(s)
- Matthias Boentert
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster (UKM), Albert-Schweitzer-Campus 1, Building A1, 48149, Münster, Germany.
- Department of Medicine, UKM Marienhospital Steinfurt, Steinfurt, Germany.
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19
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Wei W, Bai W, Yang Y, Li Y, Teng X, Wan Y, Zhu J. Pulmonary protection of transcutaneous electrical acupoint stimulation in gynecological laparoscopic surgery: A randomized controlled trial. Exp Ther Med 2019; 19:511-518. [PMID: 31885697 PMCID: PMC6913376 DOI: 10.3892/etm.2019.8245] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Accepted: 10/22/2019] [Indexed: 11/15/2022] Open
Abstract
Laparoscopy is performed worldwide due to its limited side effects and optimal treatment efficacy. However, it also has adverse effects, including atelectasis and ischemia-reperfusion injury, due to CO2 accumulation during ventilation in a head-down position, which may result in severe disorders and adversely affecting postoperative recovery, prolonging hospitalization. The present study was performed to assess whether transcutaneous electrical acupoint stimulation (TEAS) protects against lung injury occurring during gynecological laparoscopic surgery. Patients were randomly allocated to two groups: Control group (received no stimulation) and TEAS group (patients treated with TEAS on BL13, LI4 and LU5). The mean arterial pressure, heart rate and oxygen saturation were recorded at the time-points of arriving in the operating room (T0), immediately prior to induction of the pneumoperitoneum (T1), immediately after the end of pneumoperitoneum (T2) and on leaving the operating room (T3). Arterial blood gas analysis was performed to record the pH, determine the partial pressure of carbon dioxide and calculate the oxygenation index (OI) at T0–3. Blood samples were taken from the peripheral vein for determination of the serum concentrations of tumor necrosis factor (TNF)-α and interleukin (IL)-1β at T0 and T3. Post-operative pulmonary complications occurring during the first five days after surgery were also recorded. A total of 100 patients were initially enrolled and 80 patients were analysed. The results indicated that the OI in the control group was significantly lower than that in the TEAS group at the T2 and T3 time-points. The serum concentrations of TNF-α and IL-1β were significantly increased following surgery, while the extent of these increases was lower in the TEAS group compared with that in the control group. The incidence of post-operative pulmonary complications was significantly lower in the TEAS group. It was therefore indicated that TEAS protect against lung injury as a complication of gynecological laparoscopic surgery. The present study was registered at http://www.clinicaltrials.gov prior to enrollment of the patients (no. NCT02850471).
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Affiliation(s)
- Wei Wei
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China.,Department of Anesthesiology, Northeast International Hospital, Shenyang, Liaoning 110004, P.R. China
| | - Wenya Bai
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China.,Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650000, P.R. China
| | - Yanchao Yang
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Yang Li
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Xiufei Teng
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Yuxiao Wan
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Junchao Zhu
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
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20
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Suh E, Murphy PB. Auto‐titration of EPAP during NIV: A better night's sleep? Respirology 2019; 24:1132-1133. [DOI: 10.1111/resp.13587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 05/06/2019] [Indexed: 11/28/2022]
Affiliation(s)
- Eui‐Sik Suh
- Lane Fox Respiratory ServiceGuy's and St Thomas’ NHS Foundation Trust London UK
| | - Patrick Brian Murphy
- Lane Fox Respiratory ServiceGuy's and St Thomas’ NHS Foundation Trust London UK
- Centre for Human and Applied Physiological SciencesKing's College London London UK
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21
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Boentert M. Sleep disturbances in patients with amyotrophic lateral sclerosis: current perspectives. Nat Sci Sleep 2019; 11:97-111. [PMID: 31496852 PMCID: PMC6701267 DOI: 10.2147/nss.s183504] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 07/16/2019] [Indexed: 01/08/2023] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a progressive motor neuron disease inevitably leading to generalized muscle weakness and premature death. Sleep disturbances are extremely common in patients with ALS and substantially add to the burden of disease for both patients and caregivers. Disruption of sleep can be caused by physical symptoms, such as muscle cramps, pain, reduced mobility, spasticity, mucus retention, and restless legs syndrome. In addition, depression and anxiety may lead to significant insomnia. In a small subset of patients, rapid eye movement (REM) sleep behavioral disorder may be present, reflecting neurodegeneration of central nervous system pathways which are involved in REM sleep regulation. With regard to overall prognosis, sleep-disordered breathing (SDB) and nocturnal hypoventilation (NH) are of utmost importance, particularly because NH precedes respiratory failure. Timely mechanical ventilation is one of the most significant therapeutic measures to prolong life span in ALS, and transcutaneous capnometry is superior to pulse oxymetry to detect NH early. In addition, it has been shown that in patients on home ventilatory support, survival time depends on whether normocapnia, normoxia, and elimination of apneic events during sleep can be reliably achieved. Several studies have investigated sleep patterns and clinical determinants of sleep disruption in ALS, but exact prevalence numbers are unknown. Thus, constant awareness for sleep-related symptoms is appropriate. Since no curative treatment can be offered to affected patients, sleep complaints should be thoroughly investigated in order to identify any treatable etiology and improve or stabilize quality of life as much as possible. The use of hypnotics should be confined to palliation during the terminal phase and refractory insomnia in earlier stages of the disease, taking into account that most compounds potentially aggravate SDB.
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Affiliation(s)
- Matthias Boentert
- Department of Neurology, University Hospital Muenster, Muenster, Germany
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22
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de Carvalho M, Swash M, Pinto S. Diaphragmatic Neurophysiology and Respiratory Markers in ALS. Front Neurol 2019; 10:143. [PMID: 30846968 PMCID: PMC6393326 DOI: 10.3389/fneur.2019.00143] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Accepted: 02/04/2019] [Indexed: 12/11/2022] Open
Abstract
The main reason for short survival in amyotrophic lateral sclerosis (ALS) is involvement of respiratory muscles. Severe compromise of diaphragmatic function due to marked loss of motor units causes poor inspiratory strength leading to symptomatic respiratory fatigue, and hypercapnia and hypoxemia, often firstly detected while sleeping supine. Weakness of expiratory muscles leads to cough weakness and poor bronchial clearance, increasing the risk of respiratory infection. Respiratory tests should therefore encompass inspiratory and expiratory function, and include measurements of blood gases during sleep. Non-volitional tests, such as phrenic nerve stimulation, are particularly convenient for investigating respiratory function in patients unable to perform standard respiratory function tests due to poor cooperation or facial weakness. However, SNIP is a sensitive test when patients with bulbar involvement are able to perform the necessary maneuvers. It is likely that central respiratory regulation is disturbed in some ALS patients, but its evaluation is more complex and not regularly implemented. Practical tests should incorporate tolerability, sensitivity, easy application for regular monitoring, and prognostic value. Impending respiratory failure can cause increased circulating inflammatory markers, but molecular assessment of respiratory distress requires further study. In future, home-monitoring of patients with accessible devices should be developed.
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Affiliation(s)
- Mamede de Carvalho
- Instituto de Fisiologia-Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.,Department of Neurosciences and Mental Health, Hospital de Santa Maria-CHLN, Lisbon, Portugal
| | - Michael Swash
- Instituto de Fisiologia-Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.,Barts and the London School of Medicine, Queen Mary University of London, London, United Kingdom
| | - Susana Pinto
- Instituto de Fisiologia-Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
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Crimi C, Pierucci P, Carlucci A, Cortegiani A, Gregoretti C. Long-Term Ventilation in Neuromuscular Patients: Review of Concerns, Beliefs, and Ethical Dilemmas. Respiration 2019; 97:185-196. [PMID: 30677752 DOI: 10.1159/000495941] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 12/03/2018] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Noninvasive mechanical ventilation (NIV) is an effective treatment in patients with neuromuscular diseases (NMD) to improve symptoms, quality of life, and survival. SUMMARY NIV should be used early in the course of respiratory muscle involvement in NMD patients and its requirements may increase over time. Therefore, training on technical equipment at home and advice on problem solving are warranted. Remote monitoring of ventilator parameters using built-in ventilator software is recommended. Telemedicine may be helpful in reducing hospital admissions. Anticipatory planning and palliative care should be carried out to lessen the burden of care, to maintain or withdraw from NIV, and to guarantee the most respectful management in the last days of NMD patients' life. Key Message: Long-term NIV is effective but challenging in NMD patients. Efforts should be made by health care providers in arranging a planned transition to home and end-of-life discussions for ventilator-assisted individuals and their families.
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Affiliation(s)
- Claudia Crimi
- Respiratory Medicine Unit, A.O.U. "Policlinico-Vittorio Emanuele", Catania, Italy
| | - Paola Pierucci
- Cardiothoracic Department, Respiratory and Sleep Medicine Unit, Policlinico University Hospital, Bari, Italy
| | - Annalisa Carlucci
- Respiratory Intensive Care Unit, Pulmonary Rehabilitation Unit, IRCCS Fondazione S. Maugeri, Pavia, Italy
| | - Andrea Cortegiani
- Department of Surgical, Oncological and Oral Science (Di.Chir.On.S.), Section of Anesthesia, Analgesia, Intensive Care and Emergency, Policlinico Paolo Giaccone, University of Palermo, Palermo, Italy,
| | - Cesare Gregoretti
- Department of Surgical, Oncological and Oral Science (Di.Chir.On.S.), Section of Anesthesia, Analgesia, Intensive Care and Emergency, Policlinico Paolo Giaccone, University of Palermo, Palermo, Italy
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24
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Aarrestad S, Qvarfort M, Kleiven AL, Tollefsen E, Skjønsberg OH, Janssens JP. Diagnostic accuracy of simple tools in monitoring patients with chronic hypoventilation treated with non-invasive ventilation; a prospective cross-sectional study. Respir Med 2018; 144:30-35. [DOI: 10.1016/j.rmed.2018.09.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 09/24/2018] [Accepted: 09/25/2018] [Indexed: 12/14/2022]
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25
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Grychtol R, Abel F, Fitzgerald DA. The role of sleep diagnostics and non-invasive ventilation in children with spinal muscular atrophy. Paediatr Respir Rev 2018; 28:18-25. [PMID: 30396824 DOI: 10.1016/j.prrv.2018.07.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 07/17/2018] [Indexed: 01/13/2023]
Abstract
Spinal muscular atrophy (SMA) is a degenerative motor neurone disorder causing progressive muscular weakness. Without assisted ventilation or novel therapies, most children with SMA type 1 die before the second year of life due to respiratory failure as the respiratory muscles and bulbar function are severely affected. Active respiratory treatment (mechanically assisted cough, invasive or non-invasive ventilation) has improved survival significantly in recent decades, but often at the cost of becoming ventilator dependent. The advent of a new oligonucleotide based therapy (Nusinersen) has created new optimism for improving motor function. However, the long-term effect on respiratory function is unclear and non-invasive respiratory support will remain an important part of medical management in patients with SMA. This review summarises the existing knowledge about sleep-disordered breathing and respiratory failure in patients with SMA, especially type 1, as well as the evidence of improved outcome and survival in patients treated with non-invasive or invasive ventilation. Practical considerations and ethical concerns are delineated with discussion on how these may be affected by the advent of new therapies such as Nusinersen.
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Affiliation(s)
- Ruth Grychtol
- Department of Respiratory Medicine, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Francois Abel
- Department of Respiratory Medicine, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK.
| | - Dominic A Fitzgerald
- Department of Respiratory Medicine, The Children's Hospital at Westmead, Sydney, NSW, Australia; Discipline of Child and Adolescent Health, Sydney Medical School, University of Sydney, Sydney, NSW, Australia
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26
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Abstract
PURPOSE OF REVIEW In numerous neuromuscular disorders (NMDs), respiratory muscle weakness is present, and acute or chronic respiratory failure may evolve. Very often, respiratory involvement substantially adds to the burden of disease, impairs quality of life, or reduces life expectancy. This article summarizes new aspects of both diagnosis and management of respiratory muscle weakness in patients with NMDs. RECENT FINDINGS Drugs like deflazacort, ataluren, eteplirsen, and nusinersen are now approved treatments for Duchenne Muscular Dystrophy and Spinal Muscular Atrophy, and others are on their way in NMDs. Although observing how innovative drugs will change the natural history of these diseases, including respiratory function over time, adequate symptomatic treatment remains meaningful and is strongly recommended. Physicians should systematically take respiratory involvement into account to improve patients' quality of life and prognosis. SUMMARY First, it is outlined in which subtypes of NMD respiratory muscle dysfunction is particularly relevant. Second, new developments regarding diagnostic procedures, including respiratory muscle strength testing, spirometry, and sleep studies, are covered. Third, this article gives an overview on current concepts of ventilatory support and management of secretions in patients with NMD.
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27
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Boentert M, Glatz C, Helmle C, Okegwo A, Young P. Prevalence of sleep apnoea and capnographic detection of nocturnal hypoventilation in amyotrophic lateral sclerosis. J Neurol Neurosurg Psychiatry 2018; 89:418-424. [PMID: 29054915 DOI: 10.1136/jnnp-2017-316515] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 10/03/2017] [Indexed: 12/12/2022]
Abstract
OBJECTIVE This retrospective study aimed to investigate whether overnight oxymetry and early morning blood gas analysis predict nocturnal hypoventilation (NH) as reflected by night-time hypercapnia in patients with amyotrophic lateral sclerosis (ALS). In addition, prevalence and clinical determinants of sleep apnoea in ALS were evaluated. METHODS In 250 patients with non-ventilated ALS, transcutaneous capnometry was performed along with polysomnography or polygraphy and early morning blood gases. RESULTS 123 patients were female, and 84 patients had bulbar-onset ALS. 40.0% showed NH, and an apnoea-hypopnoea index (AHI) >5/hour was found in 45.6%. In 22.3%, sleep apnoea and NH coincided. The obstructive apnoea index was significantly higher than the central apnoea index (p<0.0001). Both NH and sleep apnoea were significantly more common in male than in female patients. Sleep apnoea and AHI were associated with better bulbar function. Desaturation time (t<90%) and transcutaneous CO2 were negatively correlated with upright vital capacity. Early morning base excess (EMBE), bicarbonate and t<90% were independent predictors of NH. However, among 100 patients with NH, 31 were missed by t<90% >5 min and 17 were not identified when EMBE >3 mmol/L and t<90% >5 min were combined. CONCLUSION In ALS, sleep apnoea is common and often accompanies NH. It is mainly obstructive, and central apnoea appears to be clinically irrelevant. Polygraphy or oxymetry alone are not sufficient to uncover NH. Combination of EMBE and t<90% may increase sensitivity, but transcutaneous capnography is strongly recommended for reliable detection of NH in patients with ALS.
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Affiliation(s)
- Matthias Boentert
- Department of Sleep Medicine and Neuromuscular Disorders, University Hospital Münster, Münster, Germany
| | - Christian Glatz
- Department of Sleep Medicine and Neuromuscular Disorders, University Hospital Münster, Münster, Germany
| | - Cornelia Helmle
- Department of Sleep Medicine and Neuromuscular Disorders, University Hospital Münster, Münster, Germany
| | - Angelika Okegwo
- Department of Sleep Medicine and Neuromuscular Disorders, University Hospital Münster, Münster, Germany
| | - Peter Young
- Department of Sleep Medicine and Neuromuscular Disorders, University Hospital Münster, Münster, Germany
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