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Baglyas S, Valkó L, Donka D, Fodor G, Hansági E, Méhész I, Gál J, Lorx A. Prevalence of suspected obesity hypoventilation syndrome in Hungarian Intensive Care Units during the COVID-19 pandemic. THE CLINICAL RESPIRATORY JOURNAL 2023; 17:771-779. [PMID: 37499628 PMCID: PMC10435938 DOI: 10.1111/crj.13667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 07/10/2023] [Indexed: 07/29/2023]
Abstract
INTRODUCTION The symptoms of obesity hypoventilation syndrome (OHS) may be present for years with concomitant progressive comorbidities, and the condition is frequently diagnosed late as a result of acute-on-chronic hypercapnic respiratory failure. Although some data exist on intensive care unit (ICU) prevalence, mortality and morbidity of OHS, little is known about the ICU mortality of these chronic respiratory failure patients during the COVID-19 pandemic. METHODS We performed a cross-sectional observational study in five Hungarian Intensive Care Units for 4 months during the COVID-19 pandemic. All ICU patients were screened for OHS risk factors by treating physicians. Risk factors were defined as obesity (body mass index [BMI] ≥ 30 kg/m2 ) and at least one of the following: Epworth Sleepiness Score ≥ 6; symptoms of right heart failure; daytime or night-time hypoxemia; presence of loud snoring; witnessed apnoea. We calculated prevalence, mortality and factors associated with unfavourable outcome. RESULTS A total of 904 ICU patients were screened for OHS risk factors. Overall 79 (8.74 ± 5.53%) patients were reported to have met the criteria for suspected OHS with a mortality rate of 40.5%; 69% (54 patients) of the cohort displayed at least 3 symptoms related to OHS before their acute illness. COVID-19 infection was associated with higher mortality in OHS-suspected patients, independently of actual BMI. CONCLUSION Despite the increased risk of obese patients, suspected OHS did not show higher prevalence than expected during the COVID-19 pandemic in critically ill patients. COVID-19 infection however was a risk for mortality in these patients, independent of actual BMI.
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Affiliation(s)
- Szabolcs Baglyas
- Department of Anesthesiology and Intensive CareSemmelweis UniversityBudapestHungary
| | - Luca Valkó
- Department of Anesthesiology and Intensive CareSemmelweis UniversityBudapestHungary
| | - Dániel Donka
- Department of Anesthesiology, Intensive Care and Emergency MedicineBajcsy‐Zsilinszky HospitalBudapestHungary
| | - Gábor Fodor
- Central Department of Anesthesiology and Intensive CarePetz Aladár County Teaching HospitalGyőrHungary
| | - Edit Hansági
- Department of Anesthesiology and Intensive CareSaint Barbara County HospitalTatabányaHungary
| | - István Méhész
- Central Department of Anesthesiology and Intensive CareUzsoki Street HospitalBudapestHungary
| | - János Gál
- Department of Anesthesiology and Intensive CareSemmelweis UniversityBudapestHungary
| | - András Lorx
- Department of Anesthesiology and Intensive CareSemmelweis UniversityBudapestHungary
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Lauria MJ, Root CW, Gottula AL, Braude DA. Management of Respiratory Distress and Failure in Morbidly and Super Obese Patients During Critical Care Transport. Air Med J 2022; 41:133-140. [PMID: 35248332 DOI: 10.1016/j.amj.2021.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 08/24/2021] [Accepted: 09/21/2021] [Indexed: 06/14/2023]
Abstract
Morbidly and super obese patients are a unique patient population that presents critical care transport providers with unique clinical and logistical challenges in the setting of respiratory distress and failure. These patients are more likely to have chronic respiratory issues at baseline, unique anatomic and physiologic abnormalities, and other comorbidities that leave them poorly able to tolerate respiratory illness or injury. This requires specialized understanding of their respiratory mechanics as well as how to tailor standard treatment modalities, such as noninvasive ventilation, to meet their needs. Also, careful and deliberate planning is required to address the specific anatomic and physiologic characteristics of this population if intubation and mechanical ventilation are needed. Finally, their dimensions and weight also have distinct consequences on transport vehicle considerations. This article reviews the pathophysiology, management, and critical care transport considerations for this unique patient population in respiratory distress and failure.
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Affiliation(s)
- Michael J Lauria
- Lifeguard Air Emergency Services, Albuquerque, NM; Department of Emergency Medicine, University of New Mexico School of Medicine, Albuquerque, NM.
| | - Christopher W Root
- Lifeguard Air Emergency Services, Albuquerque, NM; Department of Emergency Medicine, University of New Mexico School of Medicine, Albuquerque, NM
| | - Adam L Gottula
- Department of Anesthesiology, Division of Critical Care Medicine, University of Michigan, Ann Arbor, MI
| | - Darren A Braude
- Lifeguard Air Emergency Services, Albuquerque, NM; Department of Emergency Medicine, University of New Mexico School of Medicine, Albuquerque, NM; Department of Emergency Medicine, University of New Mexico, Albuquerque, NM
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Saigal A, Shah AJ, Mandal S. Acute hypercapnic respiratory failure and its management on the acute medical take. Br J Hosp Med (Lond) 2021; 82:1-12. [PMID: 34726941 DOI: 10.12968/hmed.2021.0251] [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: 11/11/2022]
Abstract
Acute hypercapnic respiratory failure accounts for 50 000 hospital admissions each year in the UK. This article discusses the pathophysiology and common causes of acute hypercapnic respiratory failure, and provides practical considerations for patient management in acute medical settings. Non-invasive ventilation for persistent acute hypercapnic respiratory failure is widely recognised to improve patient outcomes and reduce mortality. National audits highlight a need to improve patients' overall care and outcomes through appropriate patient selection and treatment initiation. Multidisciplinary involvement is essential, as this underpins inpatient care and follow up after hospital discharge. New non-invasive ventilation modalities may offer better patient comfort and compensate better for sleep-related changes in respiratory mechanics. Emerging therapies, such as nasal high flow, may offer an alternative treatment approach in those who cannot tolerate non-invasive ventilation, but more research is required to completely understand its effectiveness in treating acute hypercapnic respiratory failure.
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Affiliation(s)
- Anita Saigal
- Department of Thoracic Medicine, Royal Free Hospital, London, UK
| | - Amar J Shah
- Department of Thoracic Medicine, Royal Free Hospital, London, UK
| | - Swapna Mandal
- Department of Thoracic Medicine, Royal Free Hospital, London, UK
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Clinical Practice Guidelines for the Prevention and Management of Pain, Agitation/Sedation, Delirium, Immobility, and Sleep Disruption in Adult Patients in the ICU. Crit Care Med 2019; 46:e825-e873. [PMID: 30113379 DOI: 10.1097/ccm.0000000000003299] [Citation(s) in RCA: 1758] [Impact Index Per Article: 351.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE To update and expand the 2013 Clinical Practice Guidelines for the Management of Pain, Agitation, and Delirium in Adult Patients in the ICU. DESIGN Thirty-two international experts, four methodologists, and four critical illness survivors met virtually at least monthly. All section groups gathered face-to-face at annual Society of Critical Care Medicine congresses; virtual connections included those unable to attend. A formal conflict of interest policy was developed a priori and enforced throughout the process. Teleconferences and electronic discussions among subgroups and whole panel were part of the guidelines' development. A general content review was completed face-to-face by all panel members in January 2017. METHODS Content experts, methodologists, and ICU survivors were represented in each of the five sections of the guidelines: Pain, Agitation/sedation, Delirium, Immobility (mobilization/rehabilitation), and Sleep (disruption). Each section created Population, Intervention, Comparison, and Outcome, and nonactionable, descriptive questions based on perceived clinical relevance. The guideline group then voted their ranking, and patients prioritized their importance. For each Population, Intervention, Comparison, and Outcome question, sections searched the best available evidence, determined its quality, and formulated recommendations as "strong," "conditional," or "good" practice statements based on Grading of Recommendations Assessment, Development and Evaluation principles. In addition, evidence gaps and clinical caveats were explicitly identified. RESULTS The Pain, Agitation/Sedation, Delirium, Immobility (mobilization/rehabilitation), and Sleep (disruption) panel issued 37 recommendations (three strong and 34 conditional), two good practice statements, and 32 ungraded, nonactionable statements. Three questions from the patient-centered prioritized question list remained without recommendation. CONCLUSIONS We found substantial agreement among a large, interdisciplinary cohort of international experts regarding evidence supporting recommendations, and the remaining literature gaps in the assessment, prevention, and treatment of Pain, Agitation/sedation, Delirium, Immobility (mobilization/rehabilitation), and Sleep (disruption) in critically ill adults. Highlighting this evidence and the research needs will improve Pain, Agitation/sedation, Delirium, Immobility (mobilization/rehabilitation), and Sleep (disruption) management and provide the foundation for improved outcomes and science in this vulnerable population.
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Sequeira TCA, BaHammam AS, Esquinas AM. Noninvasive Ventilation in the Critically Ill Patient With Obesity Hypoventilation Syndrome: A Review. J Intensive Care Med 2016; 32:421-428. [PMID: 27530511 DOI: 10.1177/0885066616663179] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Obesity is a global epidemic that adversely affects respiratory physiology. Sleep-disordered breathing and obesity hypoventilation syndrome (OHS) are among the most common pulmonary complications related to obesity class III. Patients with OHS may present with acute hypercapnic respiratory failure (AHRF) that necessitates immediate noninvasive ventilation (NIV) or invasive ventilation and intensive care unit (ICU) monitoring. The OHS is underrecognized as a cause of AHRF. The management of mechanical ventilation in obese ICU patients is one of the most challenging problems facing respirologists, intensivists, and anesthesiologists. The treatment of AHRF in patients with OHS should aim to improve alveolar ventilation with better alveolar gas exchange, as well as maintaining a patent upper airway, which is ideally achieved through NIV. Treatment with NIV is associated with improvement in blood gases and lung mechanics and may reduce hospital admissions and morbidity. In this review, we will address 3 main issues: (1) NIV of critically ill patients with acute respiratory failure and OHS; (2) the indications for postoperative application of NIV in patients with OHS; and (3) the impact of OHS on weaning and postextubation respiratory failure. Additionally, the authors propose an algorithm for the management of obese patients with AHRF.
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Affiliation(s)
- Telma C A Sequeira
- 1 Pulmonology Department, Hospital Prof. Doutor Fernando Fonseca, EPE, Amadora, Lisbon, Portugal.,2 Faculdade Medicina de Lisboa, Universidade de Lisboa, Lisbon, Portugal
| | - Ahmed S BaHammam
- 3 The University Sleep Disorders Center, Riyadh, Saudi Arabia.,4 Department of Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia.,5 Strategic Technologies Program of the National Plan for Sciences and Technology and Innovation in the Kingdom of Saudi Arabia, Riyadh, Saudi Arabia
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Study of sleep – Related breathing disorders in patients admitted to respiratory intensive care unit. EGYPTIAN JOURNAL OF CHEST DISEASES AND TUBERCULOSIS 2016. [DOI: 10.1016/j.ejcdt.2015.08.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Intensive care unit and hospital mortality in patients with obstructive sleep apnea. J Crit Care 2014; 30:178-80. [PMID: 25457113 DOI: 10.1016/j.jcrc.2014.10.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2014] [Revised: 09/29/2014] [Accepted: 10/04/2014] [Indexed: 11/21/2022]
Abstract
INTRODUCTION Obstructive sleep apnea (OSA) is a common disorder affecting between 5% and 24% of men and women. The prevalence of OSA in the intensive care unit (ICU) population is unknown. This study was undertaken to determine the prevalence of OSA in patients admitted to the ICU and to determine if OSA is an independent predictor of mortality. METHODS This is a retrospective study using an Acute Physiology and Chronic Health Evaluation III database cross-referenced to a comprehensive clinical database to identify patients with and without OSA admitted to medical, surgical, and mixed ICUs at a large academic medical center. RESULTS Between January 2003 and December 2005, 15077 patients were admitted to the ICUs; and of these, 1183 (7.8%) had a physician-documented diagnosis of OSA. Eight hundred thirty-five (71%) patients had polysomnographic testing at our institution with a documented apnea-hypopnea index more than 5 per hour. Patients with OSA were younger (59.1 ± 14.0 vs 62.3 ± 18.0), male (58.9% vs 53.7%), and had lower Acute Physiology and Chronic Health Evaluation III scores (45.3 ± 24.1 vs 54.9 ± 27.7). Predicted mortality (10.3% ± 16.4% vs 16.3 ± 21.7), median ICU length of stay (1.13 vs 1.50 days), ICU mortality (2.4% vs 6.2%), and hospital mortality (3.9% vs 11.4%) were all reduced in patients with OSA, P values < .001. When adjusted for the severity of illness, OSA was independently associated with decreased hospital mortality, (0.408; 95% confidence interval, 0.298-0.557). CONCLUSIONS Obstructive sleep apnea is common in patients admitted to the ICU. Obstructive sleep apnea was associated with a reduction in both ICU and hospital mortality.
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Inflammatory markers and obstructive sleep apnea in obese children: the NANOS study. Mediators Inflamm 2014; 2014:605280. [PMID: 24991089 PMCID: PMC4058796 DOI: 10.1155/2014/605280] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 04/17/2014] [Accepted: 05/01/2014] [Indexed: 11/30/2022] Open
Abstract
Introduction. Obesity and obstructive sleep apnea syndrome (OSA) are common coexisting conditions associated with a chronic low-grade inflammatory state underlying some of the cognitive, metabolic, and cardiovascular morbidities. Aim. To examine the levels of inflammatory markers in obese community-dwelling children with OSA, as compared to no-OSA, and their association with clinical and polysomnographic (PSG) variables. Methods. In this cross-sectional, prospective multicenter study, healthy obese Spanish children (ages 4–15 years) were randomly selected and underwent nocturnal PSG followed by a morning fasting blood draw. Plasma samples were assayed for multiple inflammatory markers. Results. 204 children were enrolled in the study; 75 had OSA, defined by an obstructive respiratory disturbance index (RDI) of 3 events/hour total sleep time (TST). BMI, gender, and age were similar in OSA and no-OSA children. Monocyte chemoattractant protein-1 (MCP-1) and plasminogen activator inhibitor-1 (PAI-1) levels were significantly higher in OSA children, with interleukin-6 concentrations being higher in moderate-severe OSA (i.e., AHI > 5/hrTST; P < 0.01), while MCP-1 levels were associated with more prolonged nocturnal hypercapnia (P < 0.001). Conclusion. IL-6, MCP-1, and PAI-1 are altered in the context of OSA among community-based obese children further reinforcing the proinflammatory effects of sleep disorders such as OSA. This trial is registered with ClinicalTrials.gov NCT01322763.
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Lemyze M, Taufour P, Duhamel A, Temime J, Nigeon O, Vangrunderbeeck N, Barrailler S, Gasan G, Pepy F, Thevenin D, Mallat J. Determinants of noninvasive ventilation success or failure in morbidly obese patients in acute respiratory failure. PLoS One 2014; 9:e97563. [PMID: 24819141 PMCID: PMC4018299 DOI: 10.1371/journal.pone.0097563] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2013] [Accepted: 04/21/2014] [Indexed: 11/19/2022] Open
Abstract
PURPOSE Acute respiratory failure (ARF) is a common life-threatening complication in morbidly obese patients with obesity hypoventilation syndrome (OHS). We aimed to identify the determinants of noninvasive ventilation (NIV) success or failure for this indication. METHODS We prospectively included 76 consecutive patients with BMI>40 kg/m2 diagnosed with OHS and treated by NIV for ARF in a 15-bed ICU of a tertiary hospital. RESULTS NIV failed to reverse ARF in only 13 patients. Factors associated with NIV failure included pneumonia (n = 12/13, 92% vs n = 9/63, 14%; p<0.0001), high SOFA (10 vs 5; p<0.0001) and SAPS2 score (63 vs 39; p<0.0001) at admission. These patients often experienced poor outcome despite early resort to endotracheal intubation (in-hospital mortality, 92.3% vs 17.5%; p<0.001). The only factor significantly associated with successful response to NIV was idiopathic decompensation of OHS (n = 30, 48% vs n = 0, 0%; p = 0.001). In the NIV success group (n = 63), 33 patients (53%) experienced a delayed response to NIV (with persistent hypercapnic acidosis during the first 6 hours). CONCLUSIONS Multiple organ failure and pneumonia were the main factors associated with NIV failure and death in morbidly obese patients in hypoxemic ARF. On the opposite, NIV was constantly successful and could be safely pushed further in case of severe hypercapnic acute respiratory decompensation of OHS.
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Affiliation(s)
- Malcolm Lemyze
- Department of Respiratory and Critical Care Medicine, Schaffner Hospital, Lens, France
| | - Pauline Taufour
- Department of Respiratory and Critical Care Medicine, Schaffner Hospital, Lens, France
| | - Alain Duhamel
- Department of Biostatistics, Lille University Hospital, CHRU Lille, France
| | - Johanna Temime
- Department of Respiratory and Critical Care Medicine, Schaffner Hospital, Lens, France
| | - Olivier Nigeon
- Respiratory Step Down Unit, Schaffner Hospital, Lens, France
| | | | - Stéphanie Barrailler
- Department of Respiratory and Critical Care Medicine, Schaffner Hospital, Lens, France
| | - Gaëlle Gasan
- Department of Respiratory and Critical Care Medicine, Schaffner Hospital, Lens, France
| | - Florent Pepy
- Department of Respiratory and Critical Care Medicine, Schaffner Hospital, Lens, France
| | - Didier Thevenin
- Department of Respiratory and Critical Care Medicine, Schaffner Hospital, Lens, France
| | - Jihad Mallat
- Department of Respiratory and Critical Care Medicine, Schaffner Hospital, Lens, France
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Esquinas AM, BaHammam AS. The emergent malignant obesity hypoventilation syndrome: a new critical care syndrome. J Intensive Care Med 2013; 28:198-9. [PMID: 23674510 DOI: 10.1177/0885066612464340] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Brown LK. Noninvasive ventilatory support in obesity hypoventilation syndrome: backup early and often? Chest 2013; 143:8-10. [PMID: 23276838 DOI: 10.1378/chest.12-1835] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Affiliation(s)
- Lee K Brown
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, University of New Mexico School of Medicine, and the Program in Sleep Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM.
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Pépin JL, Borel JC, Janssens JP. Obesity hypoventilation syndrome: an underdiagnosed and undertreated condition. Am J Respir Crit Care Med 2013; 186:1205-7. [PMID: 23250497 DOI: 10.1164/rccm.201210-1922ed] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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BAHAMMAM AHMEDS, AL-JAWDER SUHAILAE. Managing acute respiratory decompensation in the morbidly obese. Respirology 2012; 17:759-71. [DOI: 10.1111/j.1440-1843.2011.02099.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Alves EDS, Ackel-D'Elia C, Luz GP, Cunha TCA, Carneiro G, Tufik S, Bittencourt LRA, de Mello MT. Does physical exercise reduce excessive daytime sleepiness by improving inflammatory profiles in obstructive sleep apnea patients? Sleep Breath 2012; 17:505-10. [PMID: 22760814 DOI: 10.1007/s11325-012-0729-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2012] [Revised: 05/23/2012] [Accepted: 05/24/2012] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Obstructive sleep apnea syndrome (OSAS) is associated with a variety of long-term consequences such as high rates of morbidity and mortality, due to excessive diurnal somnolence as well as cardiovascular and metabolic diseases. Obesity, recurrent episodes of upper airway obstruction, progressive hypoxemia, and sleep fragmentation during sleep cause neural, cardiovascular, and metabolic changes. These changes include activation of peripheral sympathetic nervous system and the hypothalamic-pituitary-adrenal axis, insulin sensitivity, and inflammatory cytokines alterations, which predispose an individual to vascular damage. DISCUSSION Previous studies proposed that OSAS modulated the expression and secretion of inflammatory cytokines from fat and other tissues. Independent of obesity, patients with OSAS exhibited elevated levels of C-reactive protein, tumor necrosis factor-α and interleukin-6, which are associated with sleepiness, fatigue, and the development of a variety of metabolic and cardiovascular diseases. OSAS and obesity are strongly associated with each other and share many common pathways that induce chronic inflammation. Previous studies suggested that the protective effect of exercise may be partially attributed to the anti-inflammatory effect of regular exercise, and this effect was observed in obese patients. Although some studies assessed the effects of physical exercise on objective and subjective sleep parameters, the quality of life, and mood in patients with OSAS, no study has evaluated the effects of this treatment on inflammatory profiles. In this review, we cited some studies that directed our opinion to believe that since OSAS causes increased inflammation and has excessive daytime sleepiness as a symptom and being that physical exercise improves inflammatory profiles and possibly OSAS symptoms, it must be that physical exercise improves excessive daytime sleepiness due to its improvement in inflammatory profiles.
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Affiliation(s)
- Eduardo da Silva Alves
- Disciplina de Medicina e Biologia do Sono, Departamento de Psicobiologia, Universidade Federal de São Paulo-UNIFESP, São Paulo, CEP: 04020-050, Brazil
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Carr GE, Mokhlesi B, Gehlbach BK. Acute cardiopulmonary failure from sleep-disordered breathing. Chest 2012; 141:798-808. [PMID: 22396567 DOI: 10.1378/chest.11-1389] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Sleep-disordered breathing (SDB) comprises a diverse set of disorders marked by abnormal respiration during sleep. Clinicians should realize that SDB may present as acute cardiopulmonary failure in susceptible patients. In this review, we discuss three clinical phenotypes of acute cardiopulmonary failure from SDB: acute ventilatory failure, acute congestive heart failure, and sudden death. We review the pathophysiologic mechanisms and recommend general principles for management. Timely recognition of, and therapy for, SDB in the setting of acute cardiopulmonary failure may improve short- and long-term outcomes.
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Affiliation(s)
- Gordon E Carr
- Section of Pulmonary, Allergy, Critical Care, and Sleep Medicine, University of Arizona College of Medicine, Tucson AZ
| | - Babak Mokhlesi
- Section of Pulmonary and Critical Care, Sleep Disorders Center, University of Chicago Pritzker School of Medicine, Chicago, IL
| | - Brian K Gehlbach
- Division of Pulmonary, Critical Care, and Occupational Medicine, University of Iowa Carver College of Medicine, Iowa City, IA.
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Schiza SE, Simantirakis E, Bouloukaki I, Mermigkis C, Kallergis EM, Chrysostomakis S, Arfanakis D, Tzanakis N, Vardas P, Siafakas NM. Sleep disordered breathing in patients with acute coronary syndromes. J Clin Sleep Med 2012; 8:21-6. [PMID: 22334805 PMCID: PMC3266342 DOI: 10.5664/jcsm.1652] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
STUDY OBJECTIVES Although the prevalence of obstructive sleep apnea/hypopnea syndrome (OSAHS) is high in patients with acute coronary syndromes (ACS), there is little knowledge about the persistence of OSAHS in ACS patients after the acute event. We aimed to assess the prevalence and time course of OSAHS in patients with ACS during and after the acute cardiac event. METHODS Fifty-two patients with first-ever ACS, underwent attended overnight polysomnography (PSG) in our sleep center on the third day after the acute event. In patients with an apnea hypopnea index (AHI) > 10/h, we performed a follow up PSG 1 and 6 months later. RESULTS Twenty-eight patients (54%) had an AHI > 10/h. There was a significant decrease in AHI 1 month after the acute event (13.9 vs. 19.7, p = 0.001), confirming the diagnosis of OSAHS in 22 of 28 patients (79%). At 6-month follow-up, the AHI had decreased further (7.5 vs. 19.7, p < 0.05), and at that time only 6 of the 28 patients (21%) were diagnosed as having OSAHS. Twelve of the 16 current smokers stopped smoking after the acute event. CONCLUSIONS We have demonstrated a high prevalence of OSAHS in ACS patients, which did not persist 6 months later, indicating that, to some degree, OSAHS may be transient and related with the acute phase of the underlying disease or the reduction in the deleterious smoking habit.
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Affiliation(s)
- Sophia E Schiza
- Sleep Disorders Unit, Department of Thoracic Medicine, Medical School, University of Crete, Greece.
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Abstract
Obesity is becoming a major medical concern in several parts of the world, with huge economic impacts on health- care systems, resulting mainly from increased cardiovascular risks. At the same time, obesity leads to a number of sleep-disordered breathing patterns like obstructive sleep apnea and obesity hypoventilation syndrome (OHS), leading to increased morbidity and mortality with reduced quality of life. OHS is distinct from other sleep- related breathing disorders although overlap may exist. OHS patients may have obstructive sleep apnea/hypopnea with hypercapnia and sleep hypoventilation, or an isolated sleep hypoventilation. Despite its major impact on health, this disorder is under-recognized and under-diagnosed. Available management options include aggressive weight reduction, oxygen therapy and using positive airway pressure techniques. In this review, we will go over the epidemiology, pathophysiology, presentation and diagnosis and management of OHS.
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Affiliation(s)
- Laila Al Dabal
- Department of Pulmonary Medicine, Rashid Hospital, Dubai Health Authority, UAE
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Acute ventilatory failure complicating obesity hypoventilation: update on a ‘critical care syndrome’. Curr Opin Pulm Med 2010; 16:543-51. [DOI: 10.1097/mcp.0b013e32833ef52e] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Hang LW, Chen W, Liang SJ, Lin YC, Tu CY, Chen HJ, Chiu KL. Clinical characteristics and outcomes of patients with obstructive sleep apnoea requiring intensive care. Anaesth Intensive Care 2010; 38:506-12. [PMID: 20514960 DOI: 10.1177/0310057x1003800315] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
We reviewed the clinical characteristics, required intervention and short- and long-term outcomes in obstructive sleep apnoea (OSA) patients requiring intensive care. A retrospective, single-centre, observational cohort study was undertaken in a multidisciplinary teaching medical and surgical intensive care unit. Adult patients with OSA (apnoea-hypopnoea index of 5 or higher) requiring intensive care from January 2000 to January 2005 were included. Thirty-seven OSA patients (age: 58 +/- 14 years, male:female 27:10) were admitted due to respiratory (n=12, 32%), cerebrovascular (n=8, 22%), cardiovascular (n=16, 43%) and infectious events (n=1, 2.7%). Comparing the clinical features, polysomnographic data and outcome among these groups, we found that OSA patients admitted due to respiratory events had significantly higher Acute Physiology and Chronic Health Evaluation II scores, lower arterial blood gas pH, higher PaCO2, a higher incidence of respiratory failure (92%) and required non-invasive ventilation after extubation (73%), and higher intensive care unit readmission rates than patients admitted due to cerebrovascular events and cardiovascular events (P < 0.05). No difference was found in the in-hospital and long-term mortality rate. The most common reason for intensive care unit admission in critically ill OSA patients was a cardiovascular event, followed by respiratory and cerebrovascular events. The baseline polysomnographic data of the OSA patients were not correlated with their clinical features and outcomes in the intensive care unit. A more complicated clinical course and higher intensive care unit readmission rate were encountered in OSA patients admitted due to respiratory events. Further studies would be required to evaluate the efficacy of non-invasive ventilation for facilitation of extubation in OSA patients presenting with hypercapnic respiratory failure.
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Affiliation(s)
- L W Hang
- Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan
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Schiza SE, Simantirakis E, Bouloukaki I, Mermigkis C, Arfanakis D, Chrysostomakis S, Chlouverakis G, Kallergis EM, Vardas P, Siafakas NM. Sleep patterns in patients with acute coronary syndromes. Sleep Med 2010; 11:149-53. [PMID: 20083431 DOI: 10.1016/j.sleep.2009.07.016] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2009] [Revised: 07/23/2009] [Accepted: 07/27/2009] [Indexed: 11/26/2022]
Abstract
BACKGROUND Little is known about sleep quality in patients with acute coronary syndromes (ACS) admitted to the coronary care unit (CCU). The aim of this study was to assess nocturnal sleep in these patients, away from the CCU environment, and to evaluate potential connections with the disease process. METHODS Twenty-two patients with first ever ACS, who were not on sedation or inotropes, underwent a full-night polysomnography (PSG) in our sleep disorders unit within 3 days of the ACS and follow-up PSGs 1 and 6 months later. RESULTS PSG parameters showed a progressive improvement over the study period. There was a statistically significant increase in total sleep time (TST), sleep efficiency, slow wave sleep (SWS), and rapid eye movement (REM) sleep, while arousal index, wake after sleep onset (WASO) and sleep latency decreased. Six months after the acute event, sleep architecture was within the normal range. CONCLUSIONS Patients with ACS have marked alterations in sleep macro- and micro-architecture, which have a negative influence on sleep quality. The changes tend to disappear over time, suggesting a relationship with the acute phase of the underlying disease.
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Affiliation(s)
- Sophia E Schiza
- Sleep Disorders Unit, Department of Thoracic Medicine, Medical School, University of Crete, Heraklion, Voutes, P.O. 71110, Greece.
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BaHammam A. Positive airway pressure therapy and daytime hypercapnia in patients with sleep-disordered breathing. Chest 2008; 134:218-9; author reply 219. [PMID: 18628235 DOI: 10.1378/chest.08-0570] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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BaHammam A. Is apnea hypopnea index a good predictor for obesity hypoventilation syndrome in patients with obstructive sleep apnea? Sleep Breath 2008; 11:201; author reply 203-4. [PMID: 17653782 DOI: 10.1007/s11325-007-0121-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Budweiser S, Riedl SG, Jörres RA, Heinemann F, Pfeifer M. Mortality and prognostic factors in patients with obesity-hypoventilation syndrome undergoing noninvasive ventilation. J Intern Med 2007; 261:375-83. [PMID: 17391112 DOI: 10.1111/j.1365-2796.2007.01765.x] [Citation(s) in RCA: 147] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
OBJECTIVES The incidence of obesity-hypoventilation syndrome (OHS) has greatly increased over time, but data on long-term outcome are limited. We investigated survival and prognostic factors in these patients undergoing noninvasive positive pressure ventilation (NPPV). DESIGN Retrospective descriptive analysis of patients with OHS and NPPV up to 10 years. METHODS Long-term mortality and predictors of survival were assessed. Additionally, we evaluated changes in lung function, blood gas and laboratory parameters 5.7 +/- 2.5 months after initiation of NPPV. RESULTS 126 patients (BMI 44.6 +/- 7.8 kg m(-2); PaCO(2) 55.5 +/- 7.7 mmHg) were followed for 41.3 +/- 27.6 months. Upon follow-up, blood gases (daytime and nighttime), as well as pulmonary function improved, whilst haemoglobin and BMI decreased (P < 0.001 each). Adherence to NPPV was high (94.5% continuing NPPV 6.5 +/- 2.3 h day(-1)). All-cause mortality was 12.7%, with 1-, 2- and 5-year survival of 97.1%, 92.0% and 70.2%, respectively. In univariate analysis, patients with PaO(2) <50 mmHg, C-reactive protein > or = 5.1 mg L(-1), leucocytes > or = 7.8 x 10(3) microl(-1), or pH > or = 7.44 at baseline had poor prognosis (P < 0.05 each). In Cox multivariate analysis, PaO(2), pH and leucocytes were independent predictors of mortality. Reduction in nocturnal PaCO(2) by > or =23.0% and haemoglobin at follow-up was associated with improved survival (P < 0.05 each) whilst a decrease in pH was a predictor of increased mortality. In contrast, neither baseline BMI nor its change was linked to survival. CONCLUSION Gas exchange and lung function in OHS were improved after initiation of NPPV. Hypoxemia, high pH and elevated inflammation markers predicted poor survival. Overall, NPPV was well tolerated and survival was excellent when compared with data from historical matched controls.
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Affiliation(s)
- S Budweiser
- Centre for Pneumology, Hospital Donaustauf, Donaustauf, Germany.
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Heinemann F, Budweiser S, Dobroschke J, Pfeifer M. Non-invasive positive pressure ventilation improves lung volumes in the obesity hypoventilation syndrome. Respir Med 2006; 101:1229-35. [PMID: 17166707 DOI: 10.1016/j.rmed.2006.10.027] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2006] [Revised: 10/30/2006] [Accepted: 10/31/2006] [Indexed: 01/06/2023]
Abstract
BACKGROUND Our objective was to study the long-term effects of non-invasive positive pressure ventilation (NPPV) on lung function and gas exchange in patients with the obesity hypoventilation syndrome (OHS). DESIGN Prospective observational study in OHS patients performing NPPV over a period of 24 months. RESULTS We studied 35 clinically stable OHS patients with a mean body mass index (BMI) 45.9+/-8.8 kg/m(2) and daytime PaCO(2) at room air of 6.92+/-0.48 kPa at baseline. Nocturnal NPPV was initiated with pressure-cycled devices on IPAP 24+/-3 cm H(2)O, EPAP 6+/-2 cm H(2)O and respiratory frequency of 18.8+/-3.7/min. After 12 and 24 months of NPPV hypercapnia was persistently normalized and hypoxemia was markedly improved while no changes in calculated alveolar-arterial oxygen difference occurred. Augmented ventilation was followed by a significant reduction in hemoglobin and hematocrit (P<0.001 each). Daily duration of ventilator use significantly correlated with the decrease in PaCO(2) after 12 months (r = 0.37; P<0.05) and 24 months (r = 0.47; P<0.05). Vital capacity (VC) and expiratory reserve volume (ERV) significantly increased after 12 and 24 months NPPV compared to the baseline values, though BMI was only slightly reduced. The 2-year survival rate was 91% with three patients (9%) discontinuing NPPV during the study period. CONCLUSION Long-term domiciliary NPPV normalizes hypercapnia and markedly improves hypoxemia as well as polycythemia in OHS patients. In addition, NPPV leads to a significant reduction in restrictive ventilatory disturbance, predominantly by increasing ERV. Application of high inspiratory pressures and good adherence to therapy are presumed to be the basis for the beneficial effects of NPPV in OHS.
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Affiliation(s)
- Frank Heinemann
- Centre for Pneumology, Donaustauf Hospital, Ludwigstrasse 68, D-93093 Donaustauf, Germany.
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Abstract
Patients in the acute care units (ACU) are usually critically ill, making them more susceptible to the unfavorable atmosphere in the hospital. One of these unfavorable factors is sleep disruption and deprivation. Many factors may affect sleep in the ACU, including therapeutic interventions, diagnostic procedures, medications, the underlying disease process, and noise generated in the ACU environment. Many detrimental physiological effects can occur secondary to noise and sleep deprivation, including cardiovascular stimulation, increased gastric secretion, pituitary and adrenal stimulation, suppression of the immune system and wound healing, and possible contribution to delirium. Over the past few years, many studies have endeavored to objectively assess sleep in the ACUs, as well as the effect of mechanical ventilation and circadian rhythm changes critically ill patients. At this time, therefore, it is important to review published data regarding sleep in ACUs, in order to improve the knowledge and recognition of this problem by health care professionals. We have therefore reviewed the methods used to assess sleep in ACUs, factors that may affect sleep in the ACU environment, and the clinical implications of sleep disruption in the ACU.
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Affiliation(s)
- Ahmed BaHammam
- Sleep Disorders Center and Medical Intensive Care Unit, Department of Medicine 38, College of Medicine, King Saud University, Riyadh, 11461, Saudi Arabia.
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