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Bouloukaki I, Christodoulakis A, Margetaki K, Tsiligianni I. The Effect of Sleep Impairment, as Assessed by the CASIS Questionnaire, in Patients with Chronic Obstructive Pulmonary Disease on Disease Severity and Physical and Mental Health: A Cross-Sectional Study in Primary Care. Biomedicines 2024; 12:1644. [PMID: 39200109 PMCID: PMC11351845 DOI: 10.3390/biomedicines12081644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 07/19/2024] [Accepted: 07/22/2024] [Indexed: 09/01/2024] Open
Abstract
The aim of our study was to assess the prevalence of sleep impairment among primary care patients with COPD and explore its impact on disease severity and overall health status. This cross-sectional study included 251 participants > 40 years old from the prospective COCARE COPD study. Data on sociodemographic characteristics, medical history, disease-specific quality of life [COPD Assessment Test (CAT)], COPD severity [Global Initiative for Chronic Obstructive Lung Disease (GOLD) 2023 categorization based on CAT score and exacerbations], fatigue [Fatigue Severity Scale (FSS)], psychological parameters [Patient Health Questionnaire-9 (PHQ-9) and General Anxiety Disorder-7 (GAD-7)], and sleep complaints [COPD and Asthma Sleep Impact Scale (CASIS) and Epworth Sleepiness Scale (ESS)] were collected. Multiple logistic regression analysis was conducted to test for associations of sleep impairment with COPD and overall health status, adjusting for confounders. Sleep impairment, indicated by a CASIS score ≥ 30, increased the risk of worse COPD health status (CAT ≥ 10 OR: 9.7, 95% CI: 5-19, p < 0.001), COPD severity (GOLD B OR: 8.9, 95% CI: 4.5-17.6, p < 0.001 and GOLD E OR: 17.4, 95% CI: 5.1-59.4, p < 0.001), excessive daytime sleepiness (ESS > 10, OR: 3.2, 95% CI: 1.3-8.1, p = 0.012), depressive symptoms (PHQ-9 ≥ 10, OR: 6.4, 95% CI: 2.1-19.1, p = 0.001), anxiety symptoms (GAD-7 ≥ 10, OR: 3.9, 95% CI: 1.6-9.2, p = 0.002), and fatigue (FSS ≥ 36, OR: 5.3, 95% CI: 2.8-9.8, p < 0.001). In conclusion, our findings suggest that sleep impairment, based on the CASIS questionnaire, is associated with worse physical and mental health in patients with COPD. Therefore, through consistent evaluation of sleep and targeted management strategies, healthcare providers could improve the quality of life for these patients.
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Affiliation(s)
- Izolde Bouloukaki
- Department of Social Medicine, School of Medicine, University of Crete, Voutes-Stavrakia, 71003 Heraklion, Greece; (A.C.); (K.M.); (I.T.)
| | - Antonios Christodoulakis
- Department of Social Medicine, School of Medicine, University of Crete, Voutes-Stavrakia, 71003 Heraklion, Greece; (A.C.); (K.M.); (I.T.)
- Department of Nursing, School of Health Sciences, Hellenic Mediterranean University, 71410 Heraklion, Greece
| | - Katerina Margetaki
- Department of Social Medicine, School of Medicine, University of Crete, Voutes-Stavrakia, 71003 Heraklion, Greece; (A.C.); (K.M.); (I.T.)
| | - Ioanna Tsiligianni
- Department of Social Medicine, School of Medicine, University of Crete, Voutes-Stavrakia, 71003 Heraklion, Greece; (A.C.); (K.M.); (I.T.)
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Kim T, Hyun SM, Shin SH, Im Y, Na Y, Do JG, Park HY, Kong S. Association of resistance training and moderate-to-vigorous physical activity with clinical outcomes in men with airflow limitation: a nationwide population-based study. Sci Rep 2024; 14:6436. [PMID: 38499757 PMCID: PMC10948750 DOI: 10.1038/s41598-024-57232-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 03/15/2024] [Indexed: 03/20/2024] Open
Abstract
Aerobic moderate-to-vigorous physical activity (MVPA) is recommended for individuals with chronic diseases. However, the association between resistance training (RT) in addition to moderate to vigorous physical activity (MVPA) and sleep duration, as well as respiratory symptoms, in patients with chronic obstructive pulmonary disease has not been thoroughly investigated. This population-based cross-sectional study used data from the Korea National Health and Nutrition Examination Survey between 2014 and 2019. A total of 61,754 individuals were identified and men with airflow limitation (FEV1/FVC < 0.7) who engaged in aerobic MVPA were selected (n = 794). Weighted percentages and odds ratio (OR) of sleep problems (≤ 5 or ≥ 9 h), chronic cough, and chronic sputum were estimated. A multivariate-adjusted complex sample logistic regression model was used to calculate ORs and 95% confidence intervals (CI). Subgroup analyses were conducted using the forced expiratory volume (FEV1) % of the predicted value (%pred) ≥ 80 vs. < 80. The percentages of sleep problems, chronic cough, and chronic sputum production were lower in men who underwent aerobic MVPA + RT than in those who underwent aerobic MVPA alone. The multivariable-adjusted OR of sleep problems was 0.44 (95% CI 0.25-0.77) in individuals undergoing aerobic MVPA + RT compared to aerobic MVPA alone. The ORs of chronic cough and sputum were 0.35 (95% CI 0.13-0.94) and 0.51 (95% CI 0.30-0.87), respectively. These associations were only significant in individuals with FEV1 < 80% pred. Compared with aerobic MVPA alone, aerobic MVPA + RT was associated with appropriate sleep duration and a decrease in chronic cough and sputum in male with airflow limitation. This was more pronounced in individuals with a FEV1 < 80% pred.
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Affiliation(s)
- Taeyun Kim
- Division of Pulmonary, Department of Internal Medicine, Kosin University Gospel Hospital, Kosin University College of Medicine, Busan, Republic of Korea
| | - Seok Min Hyun
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, Republic of Korea
| | - Sun Hye Shin
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, Republic of Korea
| | - Yunjoo Im
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, Republic of Korea
| | - Yoonju Na
- Department of Physical and Rehabilitation Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Jong Geol Do
- Department of Physical and Rehabilitation Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Hye Yun Park
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, Republic of Korea.
| | - Sunga Kong
- Department of Clinical Research Design and Evaluation, SAIHST, Sungkyunkwan University, 115 Irwon-Ro, Gangnam, Seoul, 06335, Republic of Korea.
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Golpe R, Figueira-Gonçalves JM, Dacal-Rivas D, Blanco-Cid N, Guzmán-Peralta I, Castro-Añón O, Pérez-de-Llano LA. Nocturnal Dyspnea During Severe Exacerbations Is Associated With Mortality Risk in COPD. Respir Care 2023; 68:413-416. [PMID: 36750261 PMCID: PMC10027150 DOI: 10.4187/respcare.10310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Affiliation(s)
- Rafael Golpe
- Servicio de Neumología, Hospital Universitario Lucus Augusti, Lugo, Spain.
| | - Juan M Figueira-Gonçalves
- Servicio de Neumología y Cirugía Torácica, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain; and University Institute of Tropical Diseases and Public Health of the Canary Islands, University of La Laguna, Santa Cruz de Tenerife, Spain
| | - David Dacal-Rivas
- Servicio de Neumología, Hospital Universitario Lucus Augusti, Lugo, Spain
| | - Nagore Blanco-Cid
- Servicio de Neumología, Hospital Universitario Lucus Augusti, Lugo, Spain
| | | | - Olalla Castro-Añón
- Servicio de Neumología, Hospital Universitario Lucus Augusti, Lugo, Spain
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Alghamdi SM, Alsulayyim AS, Alasmari AM, Philip KEJ, Buttery SC, Banya WAS, Polkey MI, Birring SS, Hopkinson NS. Oscillatory positive expiratory pressure therapy in COPD (O-COPD): a randomised controlled trial. Thorax 2023; 78:136-143. [PMID: 35948418 DOI: 10.1136/thorax-2022-219077] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 07/20/2022] [Indexed: 01/17/2023]
Abstract
BACKGROUND Oscillatory positive expiratory pressure (OPEP) devices are intended to facilitate sputum clearance and reduce cough, but there is limited evidence for their effectiveness in COPD, or to guide patient selection. We aimed to assess the impact of OPEP therapy on quality of life and objective measures of cough and sleep disturbance in patients with COPD with regular sputum production. METHODS We enrolled stable patients with COPD, who reported sputum production every day or most days, into an assessor-blind, parallel-group, randomised controlled trial comparing 3 months of using an Acapella device against usual care (including use of the active cycle of breathing technique). The primary outcome was cough-related quality of life measured using the Leicester Cough Questionnaire (LCQ). Secondary outcomes included fatigue (Functional Assessment of Chronic Illness Therapy, FACIT score) and generic quality of life (EuroQol-5 Dimensions, EQ-5D). In a substudy (n=45), objective monitoring of cough and disturbance/movement during sleep were also available. RESULTS 122 participants (61/61 OPEP/control) were recruited, 40% female, 17% smokers, FEV1 38 (25-56)% predicted, and age 62±10 years. 103 completed the study (55/48 OPEP/control). Use of OPEP was associated with an improvement in LCQ compared with controls; MD (95% CI) 1.03 (0.71 to 2.10); (p=0.03), FACIT score 4.68 (1.34 to 8.02); (p<0.001) and EQ-5D 4.00 (0.49 to 19.75); (p=0.04). There was also an improvement in cough frequency -60 (-43 to -95) coughs/24 hours (p<0.001), but no statistically significant effect on sleep disturbance was identified. CONCLUSIONS Regular use of an Acapella device improves symptoms and quality of life in people with COPD who produce sputum daily or most days. TRIAL REGISTRATION NUMBER ISRCTN44651852.
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Affiliation(s)
- Saeed M Alghamdi
- Clinical Technology, Umm Al-Qura University, Makkah, Saudi Arabia.,National Heart and Lung Institute, Imperial College London, London, UK
| | - Abdullah S Alsulayyim
- National Heart and Lung Institute, Imperial College London, London, UK.,Faculty of Applied Medical Sciences, Jazan University, Jazan, Saudi Arabia
| | - Ali M Alasmari
- National Heart and Lung Institute, Imperial College London, London, UK.,College of Medical Rehabilitation, Taibah University, Madinah, Saudi Arabia
| | - Keir E J Philip
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Sara C Buttery
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Winston A S Banya
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Michael I Polkey
- National Heart and Lung Institute, Imperial College London, London, UK
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Clímaco DCS, Lustosa TC, Silva MVDFP, Lins-Filho OL, Rodrigues VK, Oliveira-Neto LDAPD, Feitosa ADM, Queiroga FJP, Cabral MM, Pedrosa RP. Sleep quality in COPD patients: correlation with disease severity and health status. JORNAL BRASILEIRO DE PNEUMOLOGIA : PUBLICACAO OFICIAL DA SOCIEDADE BRASILEIRA DE PNEUMOLOGIA E TISILOGIA 2022; 48:e20210340. [PMID: 35508063 PMCID: PMC9064624 DOI: 10.36416/1806-3756/e20210340] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 01/19/2022] [Indexed: 11/20/2022]
Abstract
Objective: To evaluate clinical predictors of poor sleep quality in COPD patients with and without obstructive sleep apnea (OSA). Methods: Consecutive stable patients with COPD were evaluated for OSA by means of overnight polysomnography; for sleep quality by means of the Pittsburgh Sleep Quality Index (PSQI); and for disease impact by means of the COPD Assessment Test. COPD severity was graded in accordance with the 2020 GOLD guidelines. Predictors of poor sleep quality were evaluated by multivariate logistic regression analysis. Results: We studied 51 patients with COPD alone and 51 patients with COPD and OSA. Both groups had similar age (66.2 ± 9.2 years vs. 69.6 ± 10.7, p = 0.09) and airflow limitation (p = 0.37). Poor sleep quality was present in 74.8% of the study participants, with no significant difference between COPD patients with and without OSA regarding PSQI scores (p = 0.73). Polysomnography showed increased stage 1 non-rapid eye movement sleep and arousal index, as well as reduced sleep efficiency and stage 3 non-rapid eye movement sleep, in the group of patients with COPD and OSA (p < 0.05). Independent predictors of poor sleep quality were GOLD grade C/D COPD (OR = 6.4; 95% CI, 1.79-23.3; p < 0.01), a COPD Assessment Test score ≥ 10 (OR = 12.3; 95% CI, 4.1-36.5; p < 0.01), and lowest SaO2 < 80% (p < 0.0001). Conclusions: Poor sleep quality is quite common in patients with COPD and is associated with severe COPD and poor health status, having a negative impact on overall quality of life. Despite changes in polysomnography, OSA appears to have no impact on subjective sleep quality in COPD patients.
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Affiliation(s)
- Danielle Cristina Silva Clímaco
- . Clínica de Pneumologia, Hospital Otávio de Freitas, Recife (PE) Brasil.,. Laboratório do Sono e Coração, Pronto-Socorro Cardiológico Universitário de Pernambuco - PROCAPE - Universidade de Pernambuco, Recife (PE) Brasil
| | - Thais C Lustosa
- . Laboratório do Sono e Coração, Pronto-Socorro Cardiológico Universitário de Pernambuco - PROCAPE - Universidade de Pernambuco, Recife (PE) Brasil
| | | | - Ozeas L Lins-Filho
- . Laboratório do Sono e Coração, Pronto-Socorro Cardiológico Universitário de Pernambuco - PROCAPE - Universidade de Pernambuco, Recife (PE) Brasil
| | | | | | | | | | - Marília Montenegro Cabral
- . Laboratório do Sono e Coração, Pronto-Socorro Cardiológico Universitário de Pernambuco - PROCAPE - Universidade de Pernambuco, Recife (PE) Brasil
| | - Rodrigo P Pedrosa
- . Laboratório do Sono e Coração, Pronto-Socorro Cardiológico Universitário de Pernambuco - PROCAPE - Universidade de Pernambuco, Recife (PE) Brasil.,. Pronto-Socorro Cardiológico Universitário de Pernambuco - PROCAPE - Universidade de Pernambuco, Recife (PE) Brasil
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Domnik NJ, Phillips DB, James MD, Ayoo GA, Taylor SM, Scheeren RE, Di Luch AT, Milne KM, Vincent SG, Elbehairy AF, Crinion SJ, Driver HS, Neder JA, O'Donnell DE. Compensatory responses to increased mechanical abnormalities in COPD during sleep. Eur J Appl Physiol 2022; 122:663-676. [PMID: 35034195 DOI: 10.1007/s00421-021-04869-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 12/06/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE To assess whether night-time increases in mechanical loading negatively impact respiratory muscle function in COPD and whether compensatory increases in inspiratory neural drive (IND) are adequate to stabilize ventilatory output and arterial oxygen saturation, especially during sleep when wakefulness drive is withdrawn. METHODS 21 patients with moderate-to-severe COPD and 20 age-/sex-matched healthy controls (CTRL) participated in a prospective, cross-sectional, one-night study to assess the impact of COPD on serial awake, supine inspiratory capacity (IC) measurements and continuous dynamic respiratory muscle function (esophageal manometry) and IND (diaphragm electromyography, EMGdi) in supine sleep. RESULTS Supine inspiratory effort and EMGdi were consistently twice as high in COPD versus CTRL (p < 0.05). Despite overnight increases in awake total airways resistance and dynamic lung hyperinflation in COPD (p < 0.05; not in CTRL), elevated awake EMGdi and respiratory effort were unaltered in COPD overnight. At sleep onset (non-rapid eye movement sleep, N2), EMGdi was decreased versus wakefulness in COPD (- 43 ± 36%; p < 0.05) while unaffected in CTRL (p = 0.11); however, respiratory effort and arterial oxygen saturation (SpO2) were unchanged. Similarly, in rapid eye movement (stage R), sleep EMGdi was decreased (- 38 ± 32%, p < 0.05) versus wakefulness in COPD, with preserved respiratory effort and minor (2%) reduction in SpO2. CONCLUSIONS Despite progressive mechanical loading overnight and marked decreases in wakefulness drive, inspiratory effort and SpO2 were well maintained during sleep in COPD. Preserved high inspiratory effort during sleep, despite reduced EMGdi, suggests continued (or increased) efferent activation of extra-diaphragmatic muscles, even in stage R sleep. CLINICAL TRIAL INFORMATION The COPD data reported herein were secondary data (Placebo arm only) obtained through the following Clinical Trial: "Effect of Aclidinium/Formoterol on Nighttime Lung Function and Morning Symptoms in Chronic Obstructive Pulmonary Disease" ( https://clinicaltrials.gov/ct2/show/NCT02429765 ; NCT02429765).
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Affiliation(s)
- Nicolle J Domnik
- Department of Medicine, Queen's University, Kingston, Canada.,Department of Physiology and Pharmacology, Western University, London, Canada
| | | | - Matthew D James
- Department of Medicine, Queen's University, Kingston, Canada
| | - Grace A Ayoo
- Department of Medicine, Queen's University, Kingston, Canada
| | - Sarah M Taylor
- Department of Medicine, Queen's University, Kingston, Canada
| | | | | | - Kathryn M Milne
- Department of Medicine, Queen's University, Kingston, Canada
| | | | - Amany F Elbehairy
- Department of Medicine, Queen's University, Kingston, Canada.,Manchester University NHS Foundation Trust, Manchester, UK.,Department of Chest Diseases, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Sophie J Crinion
- Department of Medicine, Queen's University, Kingston, Canada.,Sleep Disorders Laboratory, Kingston Health Sciences Centre, Kingston, Canada.,Division of Respiratory Medicine, Queen's University, Kingston, Canada
| | - Helen S Driver
- Department of Medicine, Queen's University, Kingston, Canada.,Sleep Disorders Laboratory, Kingston Health Sciences Centre, Kingston, Canada.,Division of Respiratory Medicine, Queen's University, Kingston, Canada
| | - J Alberto Neder
- Department of Medicine, Queen's University, Kingston, Canada.,Division of Respiratory Medicine, Queen's University, Kingston, Canada
| | - Denis E O'Donnell
- Department of Medicine, Queen's University, Kingston, Canada. .,Division of Respiratory Medicine, Queen's University, Kingston, Canada. .,Respiratory Investigation Unit, Kingston Health Sciences Centre, 102 Stuart St, Kingston, ON, K7L 2V7, Canada.
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7
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Dransfield M, Rowe S, Vogelmeier CF, Wedzicha J, Criner GJ, Han MK, Martinez FJ, Calverley P. Cystic Fibrosis Transmembrane Conductance Regulator: Roles in Chronic Obstructive Pulmonary Disease. Am J Respir Crit Care Med 2022; 205:631-640. [DOI: 10.1164/rccm.202109-2064tr] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Mark Dransfield
- University of Alabama at Birmingham, Birmingham, Alabama, United States
| | - Steven Rowe
- University of Alabama at Birmingham, Birmingham, Alabama, United States
| | | | - Jadwiga Wedzicha
- Imperial College London, London, United Kingdom of Great Britain and Northern Ireland
| | - Gerard J. Criner
- Lewis Katz School of Medicine at Temple University, 12314, Philadelphia, Pennsylvania, United States
| | - MeiLan K. Han
- University of Michigan, Ann Arbor, Michigan, United States
| | | | - Peter Calverley
- University of Liverpool, Liverpool, United Kingdom of Great Britain and Northern Ireland
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Xu Q, Wu K, Yang Y, Chang R, Qiu H, Wang Y, Lin T, Fu C, Chen Y, Wang N, Ruan X. Association Between Sleep Quality and Pain Intensity in Mild Patients with COPD: A Community Study. J Pain Res 2021; 14:2641-2649. [PMID: 34471380 PMCID: PMC8403565 DOI: 10.2147/jpr.s310036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 07/22/2021] [Indexed: 01/21/2023] Open
Abstract
Purpose Poor sleep quality and pain were common and had been proved as an important influenced factor of quality of life for patients with COPD. The association of sleep quality with pain has been observed in other population but remains unclear in mild patients with COPD from a community setting. Methods A cross-sectional study was conducted to include eligible mild patients with COPD in Pudong New District of Shanghai. A structured questionnaire was used to collect general and clinical information for the patients. The Chinese version of Pittsburgh Sleep Quality Index (PSQI) and the short form of McGill Pain Questionnaire (SF-MPQ) was used to assess sleep quality and intensity of pain. Logistic regression was performed to test the association between sleeping quality and pain intensity. Results Two hundred and sixty-four patients with COPD, with an average age of 64 years (SD 5.78 years), were enrolled, and of 52% were women. Seventy-one (26.9%) participants reported at least one exacerbation during the past year. About 28.2% of the patients were classified as having poor sleep quality. Sleep quality was significantly associated with PRI score (adjusted odds ratio (ORad)=2.16, 95% CI: 1.16–4.00) and PPI rank (ORad=1.90, 95% CI: 1.08–3.34). People with daytime disturbance were more likely to have pain (ORad =2.03, 95% CI: 1.18–3.50). Conclusion Poor sleep quality was common in mild patients with COPD in community and was associated with higher pain intensity. Pain may involve an impairment of sleep quality.
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Affiliation(s)
- Qian Xu
- School of Public Health, Fudan University, Pudong Preventive Medicine Research Institute of Fudan University, Shanghai, 200032, People's Republic of China
| | - Kang Wu
- Pudong New Area Center for Disease Control and Prevention, Pudong Preventive Medicine Research Institute of Fudan University, Shanghai, 200136, People's Republic of China
| | - Yi Yang
- Pudong New Area Center for Disease Control and Prevention, Pudong Preventive Medicine Research Institute of Fudan University, Shanghai, 200136, People's Republic of China
| | - Rui Chang
- School of Public Health, Fudan University, Pudong Preventive Medicine Research Institute of Fudan University, Shanghai, 200032, People's Republic of China
| | - Hua Qiu
- Pudong New Area Center for Disease Control and Prevention, Pudong Preventive Medicine Research Institute of Fudan University, Shanghai, 200136, People's Republic of China
| | - Yingying Wang
- School of Public Health, Fudan University, Pudong Preventive Medicine Research Institute of Fudan University, Shanghai, 200032, People's Republic of China
| | - Tao Lin
- Pudong New Area Center for Disease Control and Prevention, Pudong Preventive Medicine Research Institute of Fudan University, Shanghai, 200136, People's Republic of China
| | - Chaowei Fu
- School of Public Health, Fudan University, Pudong Preventive Medicine Research Institute of Fudan University, Shanghai, 200032, People's Republic of China
| | - Yue Chen
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Na Wang
- School of Public Health, Fudan University, Pudong Preventive Medicine Research Institute of Fudan University, Shanghai, 200032, People's Republic of China
| | - Xiaonan Ruan
- Pudong New Area Center for Disease Control and Prevention, Pudong Preventive Medicine Research Institute of Fudan University, Shanghai, 200136, People's Republic of China
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Shen MD, Li YW, Xu LQ, Shi HY, Ni YY, Lin HJ, Li F. Role of active cycle of breathing technique for patients with chronic obstructive pulmonary disease: A pragmatic, randomized clinical trial. Int J Nurs Stud 2021; 117:103880. [PMID: 33540180 DOI: 10.1016/j.ijnurstu.2021.103880] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 12/04/2020] [Accepted: 12/05/2020] [Indexed: 11/26/2022]
Abstract
BACKGROUND While active cycle of breathing technique for chronic obstructive pulmonary disease patients with more sputum can improve clinic outcomes, less is known about sputum viscosity and sputum production of the intervention. OBJECTIVE The purpose of our study was to explore the effect of active cycle of breathing technique on sputum viscosity and production among patients with chronic obstructive pulmonary disease. DESIGN This was a two-arms, parallel, randomized clinical trial. SETTING Study enrollment, randomization and implementation were conducted in the department of respiratory medicine inpatient at the Medical Center in Changchun, China. PARTICIPANTS Hospitalized patients due to chronic obstructive pulmonary disease who met additional eligibility criteria were randomized to active cycle of breathing technique (n = 50) or usual care group (n = 50). METHODS Patients in the intervention group received a week-long intervention from an experienced physical therapist. Patients in the usual care group received usual care as well as information and advice in the light of their health plan from respiratory medicine. The primary outcome was the changes on sputum viscosity and production. RESULTS Among one hundred patients who were randomized (mean [SD] age, 54.89 [12.06] years; females, 58%), ninety-six participants completed the study. No significant differences were found between two groups on the changes of sputum viscosity (t = 0.277, P = 0.782). And there were insignificant differences between groups in the average amount of sputum among 1 h (Z=-1.848, P = 0.065) and significant differences in the average amount of sputum among 24 h (Z=-2.236, P = 0.025). From admission to one week recovery, the changes in ratio of forced expiratory volume in 1 s to forced vital capacity (Z=-4.511, P<0.0001) and arterial oxygen saturation (Z=-2.997, P = 0.003) were better in active cycle breathing technique group. Total Chronic Obstructive Pulmonary Disease Assessment Test scale were similar among two groups (Z=-1.818, P = 0.069). No adverse events occurred during the study. CONCLUSION For patients with chronic obstructive pulmonary disease, active cycle of breathing technique can significantly result in sputum production and respiratory function, especially those of Global Initiative for Chronic Obstructive Lung Disease classification level 3, but did not result in the short-term improvement of sputum viscosity, quality of life and cost effectiveness. Registration number: ChiCTR2000033068.
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Affiliation(s)
- M D Shen
- School of Nursing, Jilin University, No 965, Xin Jiang Avenue, 130000 Changchun, Jilin Province, China.
| | - Y W Li
- School of Nursing, Jilin University, No 965, Xin Jiang Avenue, 130000 Changchun, Jilin Province, China.
| | - L Q Xu
- School of Nursing, Jilin University, No 965, Xin Jiang Avenue, 130000 Changchun, Jilin Province, China.
| | - H Y Shi
- School of Nursing, Jilin University, No 965, Xin Jiang Avenue, 130000 Changchun, Jilin Province, China.
| | - Y Y Ni
- School of Nursing, Jilin University, No 965, Xin Jiang Avenue, 130000 Changchun, Jilin Province, China.
| | - H J Lin
- The First Hospital of Jilin University, No 71, Xinmin Street, 130000 Changchun, Jilin Province, China.
| | - F Li
- School of Nursing, Jilin University, No 965, Xin Jiang Avenue, 130000 Changchun, Jilin Province, China.
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D'Cruz RF, Murphy PB, Kaltsakas G. Sleep disordered breathing and chronic obstructive pulmonary disease: a narrative review on classification, pathophysiology and clinical outcomes. J Thorac Dis 2020; 12:S202-S216. [PMID: 33214924 PMCID: PMC7642631 DOI: 10.21037/jtd-cus-2020-006] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) causes load-capacity-drive imbalance in both wakefulness and sleep, principally driven by expiratory flow limitation and hyperinflation. Sleep imposes additional burdens to the respiratory muscle pump, driven by changes in respiratory muscle tone, neural respiratory drive and consequences of the supine position. COPD patients are therefore at higher risk of decompensation during sleep, which may manifest as altered sleep architecture, isolated nocturnal desaturation, sleep hypoventilation and restless legs. Each form of sleep disordered breathing in COPD is associated with adverse clinical and patient-reported outcomes, including increased risk of exacerbations, hospitalisation, cardiovascular events, reduced survival and poorer quality of life. COPD-obstructive sleep apnoea (OSA) overlap syndrome represents a distinct clinical diagnosis, in which clinical outcomes are significantly worse than in either disease alone, including increased mortality, risk of cardiovascular events, hospitalisation and exacerbation frequency. Sleep disordered breathing is under-recognised by COPD patients and their clinicians, however early diagnosis and management is crucial to reduce the risk of adverse clinical outcomes. In this narrative review, we describe the pathophysiology of COPD and physiological changes that occur during sleep, manifestations and diagnosis of sleep disordered breathing in COPD and associated clinical outcomes.
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Affiliation(s)
- Rebecca F D'Cruz
- Lane Fox Respiratory Unit, Guy's and St. Thomas' NHS Foundation Trust, London, UK.,Lane Fox Clinical Respiratory Physiology Research Centre, Guy's and St Thomas' NHS Foundation Trust, UK.,Centre for Human & Applied Physiological Sciences, King's College London, UK
| | - Patrick B Murphy
- Lane Fox Respiratory Unit, Guy's and St. Thomas' NHS Foundation Trust, London, UK.,Lane Fox Clinical Respiratory Physiology Research Centre, Guy's and St Thomas' NHS Foundation Trust, UK.,Centre for Human & Applied Physiological Sciences, King's College London, UK
| | - Georgios Kaltsakas
- Lane Fox Respiratory Unit, Guy's and St. Thomas' NHS Foundation Trust, London, UK.,Lane Fox Clinical Respiratory Physiology Research Centre, Guy's and St Thomas' NHS Foundation Trust, UK.,Centre for Human & Applied Physiological Sciences, King's College London, UK
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11
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Alghamdi SM, Barker RE, Alsulayyim ASS, Alasmari AM, Banya WAS, Polkey MI, Birring SS, Hopkinson NS. Use of oscillatory positive expiratory pressure (OPEP) devices to augment sputum clearance in COPD: a systematic review and meta-analysis. Thorax 2020; 75:855-863. [DOI: 10.1136/thoraxjnl-2019-214360] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 06/10/2020] [Accepted: 06/16/2020] [Indexed: 11/04/2022]
Abstract
IntroductionOscillating positive expiratory pressure (OPEP) devices are intended to facilitate sputum clearance in chronic obstructive pulmonary disease (COPD), but there is uncertainty as to their place in treatment pathways. We aimed to review the existing literature to establish the evidence base for their use.MethodsA systematic search of records up to March 2020 was performed on PubMed, CINAHL, Medline (Ovid), Cochrane and Embase to retrieve clinical trials that evaluated the efficacy of OPEP devices in patients with COPD. Two independent reviewers retrieved the titles, abstracts and full texts, and completed the data extraction.ResultsFollowing full-text review of 77 articles, eight (six randomised control trials and 2 cross-over studies) were eligible for inclusion. Pooled analysis showed low-grade evidence that the use of OPEP devices was associated with decreased COPD symptoms and exacerbations (OR 0.37, 95% CI 0.19 to 0.72), and enhanced exercise capacity; 6 min walk distance (mean difference (95% CI), 49.8 m (14.2 m to 85.5 m); p=0.009]). However, studies were mostly short term with the majority having a high risk of bias. The average acceptance, completion and drop-out rates were 82%, 91% and 8%, respectively.ConclusionThe use of OPEP devices can have a positive impact in COPD, but confidence in effect sizes is low and there is a need for further, higher quality studies to examine their long-term efficacy in COPD as well as to identify specific patient phenotypes that are more likely to respond.PROSPERO registration numberCRD 42016041835.
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12
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Luyster FS, Wang J, Sciurba FC, Bon J. Longitudinal associations between sleep disturbance and disease severity in patients with COPD. SLEEP SCIENCE AND PRACTICE 2020. [DOI: 10.1186/s41606-020-00046-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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13
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Domnik NJ, James MD, Scheeren RE, Ayoo GA, Taylor SM, Di Luch AT, Milne KM, Vincent SG, Phillips DB, Elbehairy AF, Crinion SJ, Driver HS, Neder JA, O'Donnell DE. Deterioration of Nighttime Respiratory Mechanics in COPD: Impact of Bronchodilator Therapy. Chest 2020; 159:116-127. [PMID: 32603714 DOI: 10.1016/j.chest.2020.06.033] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 06/04/2020] [Accepted: 06/12/2020] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND COPD is associated with nighttime respiratory symptoms, poor sleep quality, and increased risk of nocturnal death. Overnight deterioration of inspiratory capacity (IC) and FEV1 have been documented previously. However, the precise nature of this deterioration and mechanisms by which evening bronchodilation may mitigate this occurrence have not been studied. RESEARCH QUESTION What is the effect of evening dosing of dual, long-acting bronchodilation on detailed nocturnal respiratory mechanics and inspiratory neural drive (IND)? STUDY DESIGN AND METHODS A double-blind, randomized, placebo-controlled crossover study assessed the effects of evening long-acting bronchodilation (aclidinium bromide/formoterol fumarate dihydrate: 400/12 μg) or placebo on morning trough IC (12 h after the dose; primary outcome) and serial overnight measurements of spirometry, dynamic respiratory mechanics, and IND (secondary outcomes). Twenty participants with COPD (moderate/severe airway obstruction and lung hyperinflation) underwent serial measurements of IC, spirometry, breathing pattern, esophageal and transdiaphragmatic pressures, and diaphragm electromyography (diaphragmatic electromyography as a percentage of maximum; IND) at 6 time points from 0 to 12 h after the dose and compared with sleeping IND. RESULTS Compared with placebo, evening bronchodilation was not associated with increased morning trough IC 12 h after the dose (P = .48); however, nadir IC (lowest IC, independent of time), peak IC, area under the curve for 12 h after the dose, and IC for 10 h after the dose were improved (P < .05). During placebo, total airways resistance, lung hyperinflation, IND, and tidal esophageal and transdiaphragmatic pressure swings all increased significantly overnight compared with baseline evening values; however, each of these parameters improved with bronchodilator treatment (P < .05) with no change in ventilation or breathing pattern. INTERPRETATION Respiratory mechanics significantly deteriorated at night during placebo. Although the morning trough IC was unchanged, evening bronchodilator treatment was associated consistently with sustained overnight improvements in dynamic respiratory mechanics and inspiratory neural drive compared with placebo CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov identifier NCT02429765.
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Affiliation(s)
| | - Matthew D James
- Department of Medicine, Queen's University, Kingston, Canada
| | | | - Grace A Ayoo
- Department of Medicine, Queen's University, Kingston, Canada
| | - Sarah M Taylor
- Department of Medicine, Queen's University, Kingston, Canada
| | | | - Kathryn M Milne
- Department of Medicine, Queen's University, Kingston, Canada
| | | | | | - Amany F Elbehairy
- Department of Medicine, Queen's University, Kingston, Canada; Department of Chest Diseases, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Sophie J Crinion
- Department of Medicine, Queen's University, Kingston, Canada; Division of Respiratory Medicine, Queen's University, Kingston, Canada; Sleep Disorders Laboratory, Kingston Health Sciences Centre, Kingston, Canada
| | - Helen S Driver
- Department of Medicine, Queen's University, Kingston, Canada; Division of Respiratory Medicine, Queen's University, Kingston, Canada; Sleep Disorders Laboratory, Kingston Health Sciences Centre, Kingston, Canada
| | - J Alberto Neder
- Department of Medicine, Queen's University, Kingston, Canada; Division of Respiratory Medicine, Queen's University, Kingston, Canada
| | - Denis E O'Donnell
- Department of Medicine, Queen's University, Kingston, Canada; Division of Respiratory Medicine, Queen's University, Kingston, Canada.
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14
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Shorofsky M, Bourbeau J, Kimoff J, Jen R, Malhotra A, Ayas N, Tan WC, Aaron SD, Sin DD, Road J, Chapman KR, O'Donnell DE, Maltais F, Hernandez P, Walker BL, Marciniuk D, Kaminska M. Impaired Sleep Quality in COPD Is Associated With Exacerbations: The CanCOLD Cohort Study. Chest 2019; 156:852-863. [PMID: 31150638 DOI: 10.1016/j.chest.2019.04.132] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 03/28/2019] [Accepted: 04/22/2019] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND COPD increases susceptibility to sleep disturbances, which may in turn predispose to increased respiratory symptoms. The objective of this study was to evaluate, in a population-based sample, the relationship between subjective sleep quality and risk of COPD exacerbations. METHODS Data were obtained from the Canadian Cohort Obstructive Lung Disease (CanCOLD) study. Participants with COPD who had completed 18 months of follow-up were included. Sleep quality was measured with the Pittsburgh Sleep Quality Index (PSQI) and a three-factor analysis. Symptom-based (dyspnea or sputum change ≥ 48 h) and event-based (symptoms plus medication or unscheduled health services use) exacerbations were assessed. Association of PSQI with exacerbation rate was assessed by using negative binomial regression. Exacerbation-free survival was also assessed. RESULTS A total of 480 participants with COPD were studied, including 185 with one or more exacerbations during follow-up and 203 with poor baseline sleep quality (PSQI score > 5). Participants with subsequent symptom-based exacerbations had higher median baseline PSQI scores than those without (6.0 [interquartile range, 3.0-8.0] vs 5.0 [interquartile range, 2.0-7.0]; P = .01), and they were more likely to have baseline PSQI scores > 5 (50.3% vs 37.3%; P = .01). Higher PSQI scores were associated with increased symptom-based exacerbation risk (adjusted rate ratio, 1.09; 95% CI, 1.01-1.18; P = .02) and event-based exacerbation risk (adjusted rate ratio, 1.10; 95% CI, 1.00-1.21; P = .048). The association occurred mainly in those with undiagnosed COPD. Strongest associations were with Factor 3 (sleep disturbances and daytime dysfunction). Time to symptom-based exacerbation was shorter in participants with poor sleep quality (adjusted hazard ratio, 1.49; 95% CI, 1.09-2.03). CONCLUSIONS Higher baseline PSQI scores were associated with increased risk of COPD exacerbation over 18 months' prospective follow-up.
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Affiliation(s)
- Matthew Shorofsky
- Respiratory Epidemiology and Clinical Research Unit, Research Institute of the McGill University Health Centre, McGill University, Montreal, QC, Canada
| | - Jean Bourbeau
- Respiratory Epidemiology and Clinical Research Unit, Research Institute of the McGill University Health Centre, McGill University, Montreal, QC, Canada
| | - John Kimoff
- Respiratory Epidemiology and Clinical Research Unit, Research Institute of the McGill University Health Centre, McGill University, Montreal, QC, Canada
| | - Rachel Jen
- Division of Respiratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Atul Malhotra
- Pulmonary and Critical Care, University of California San Diego, San Diego, CA
| | - Najib Ayas
- Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Wan C Tan
- University of British Columbia, Vancouver, BC, Canada
| | - Shawn D Aaron
- The Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Don D Sin
- University of British Columbia Centre for Heart Lung Innovation, St. Paul's Hospital, Vancouver, BC, Canada
| | - Jeremy Road
- University of British Columbia, Vancouver, BC, Canada
| | - Kenneth R Chapman
- Asthma & Airway Centre, University Health Network and University of Toronto, Toronto, ON, Canada
| | - Denis E O'Donnell
- Department of Medicine/Physiology, Queens University, Kingston, ON, Canada
| | - François Maltais
- Institut universitaire de cardiologie et de pneumologie de Québec, Université Laval, Québec, QC, Canada
| | - Paul Hernandez
- Faculty of Medicine, Division of Respirology, Dalhousie University, Halifax, NS, Canada
| | | | - Darcy Marciniuk
- Respiratory Research Center, University of Saskatchewan, Saskatoon, SK, Canada
| | - Marta Kaminska
- Respiratory Epidemiology and Clinical Research Unit, Research Institute of the McGill University Health Centre, McGill University, Montreal, QC, Canada.
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15
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16
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Sleep Disturbance in Smokers with Preserved Pulmonary Function and with Chronic Obstructive Pulmonary Disease. Ann Am Thorac Soc 2018; 14:1836-1843. [PMID: 28825846 DOI: 10.1513/annalsats.201706-453oc] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
RATIONALE Sleep disturbance frequently affects patients with chronic obstructive pulmonary disease (COPD), and is associated with reduced quality of life and poorer outcomes. Data indicate that smokers with preserved pulmonary function have clinical symptoms similar to those meeting spirometric criteria for COPD, but little is known about the driving factors for sleep disturbance in this population of emerging interest. OBJECTIVES To compare the magnitude and correlates of sleep disturbance between smokers with preserved pulmonary function and those with airflow obstruction. METHODS Using cross-sectional data from the COPD Outcomes-Based Network for Clinical Effectiveness and Research Translation multicenter registry, we identified participants clinically identified as having COPD with a smoking history of at least 20 pack-years and either preserved pulmonary function or airflow obstruction. We quantified sleep disturbance by T-score measured in the sleep disturbance domain of the Patient-Reported Outcomes Information System questionnaire, and defined a minimum important difference as a T-score difference of two points. We performed univariate and multivariable linear regression to evaluate correlates within each group. RESULTS We identified 100 smokers with preserved pulmonary function and 476 with airflow obstruction. The sleep disturbance T-score was 4.1 points greater among individuals with preserved pulmonary function (95% confidence interval [CI], 2.0-6.3). In adjusted analyses, depression symptom T-score was associated with sleep disturbance in both groups (airflow obstruction: β, 0.61 points; 95% CI, 0.27-0.94; preserved pulmonary function: β, 0.25 points; 95% CI, 0.12-0.38). Of note, lower percent predicted FEV1 was associated with greater sleep disturbance among those with preserved pulmonary function (β, -0.19 points; 95% CI, -0.31 to -0.07), whereas higher FEV1 was associated with greater sleep disturbance among individuals with airflow obstruction (β, 0.06 points; 95% CI, 0.01-0.10). CONCLUSIONS Among smokers with clinically identified COPD, the severity of sleep disturbance is greater among those with preserved pulmonary function compared with those with airflow obstruction. Nonrespiratory symptoms, such as depression, were associated with sleep disturbance in both groups, whereas the relationship of sleep disturbance with FEV1 differed.
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17
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Spina G, Spruit MA, Alison J, Benzo RP, Calverley PMA, Clarenbach CF, Costello RW, Donaire-Gonzalez D, Dürr S, Garcia-Aymerich J, van Gestel AJR, Gramm M, Hernandes NA, Hill K, Hopkinson NS, Jarreta D, Kohler M, Kirsten AM, Leuppi JD, Magnussen H, Maltais F, Man WDC, McKeough ZJ, Mesquita R, Miedinger D, Pitta F, Singh SJ, Smeenk FWJM, Tal-Singer R, Vagaggini B, Waschki B, Watz H, Wouters EFM, Zogg S, den Brinker AC. Analysis of nocturnal actigraphic sleep measures in patients with COPD and their association with daytime physical activity. Thorax 2017; 72:694-701. [PMID: 28082529 DOI: 10.1136/thoraxjnl-2016-208900] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 11/15/2016] [Accepted: 12/07/2016] [Indexed: 12/30/2022]
Abstract
BACKGROUND Sleep disturbances are common in patients with chronic obstructive pulmonary disease (COPD) with a considerable negative impact on their quality of life. However, factors associated with measures of sleep in daily life have not been investigated before nor has the association between sleep and the ability to engage in physical activity on a day-to-day basis been studied. AIMS To provide insight into the relationship between actigraphic sleep measures and disease severity, exertional dyspnoea, gender and parts of the week; and to investigate the association between sleep measures and next day physical activity. METHODS Data were analysed from 932 patients with COPD (66% male, 66.4±8.3 years, FEV1% predicted=50.8±20.5). Participants had sleep and physical activity continuously monitored using a multisensor activity monitor for a median of 6 days. Linear mixed effects models were applied to investigate the factors associated with sleep impairment and the association between nocturnal sleep and patients' subsequent daytime physical activity. RESULTS Actigraphic estimates of sleep impairment were greater in patients with worse airflow limitation and worse exertional dyspnoea. Patients with better sleep measures (ie, non-fragmented sleep, sleeping bouts ≥225 min, sleep efficiency ≥91% and time spent awake after sleep onset <57 min) spent significantly more time in light (p<0.01) and moderate-to-vigorous physical activity (p<0.01). CONCLUSIONS There is a relationship between measures of sleep in patients with COPD and the amount of activity they undertake during the waking day. Identifying groups with specific sleep characteristics may be useful information when designing physical activity-enhancing interventions.
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Affiliation(s)
- Gabriele Spina
- Department of Signal Processing Systems, Technische Universiteit Eindhoven, Eindhoven, The Netherlands.,Data Science Group, Philips Research, Eindhoven, The Netherlands
| | - Martijn A Spruit
- Department of Research and Education, CIRO+, Center of Expertise for Chronic Organ Failure, Horn, The Netherlands.,REVAL - Rehabilitation Research Center, BIOMED - Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Diepenbeek, Belgium.,Department of Respiratory Medicine, Maastricht University Medical Centre, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht, The Netherlands
| | - Jennifer Alison
- Clinical and Rehabilitation Sciences, The University of Sydney, Sydney, New South Wales, Australia.,Physiotherapy Department, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - Roberto P Benzo
- Mindful Breathing Laboratory, Mayo Clinic, Rochester, Minnesota, USA
| | - Peter M A Calverley
- School of Ageing and Chronic Disease, University Hospital Aintree, Liverpool, UK
| | | | | | - David Donaire-Gonzalez
- Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain.,CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Selina Dürr
- Medical University Clinic, Cantonal Hospital Baselland, Liestal and Medical Faculty, University of Basel, Basel, Switzerland
| | - Judith Garcia-Aymerich
- Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain.,CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | | | - Marco Gramm
- Pulmonary Research Institute at Lung Clinic Grosshansdorf, Airway Research Center North, Member of the German Centre for Lung Research, Grosshansdorf, Germany
| | - Nidia A Hernandes
- Laboratory of Research in Respiratory Physiotherapy, Department of Physiotherapy, State University of Londrina (UEL), Londrina, Brazil
| | - Kylie Hill
- School of Physiotherapy and Exercise Science, Curtin University, Perth, Washington, Australia
| | - Nicholas S Hopkinson
- NIHR Respiratory Biomedical Research Unit, Royal Brompton & Harefield NHS Foundation Trust and Imperial College, London, UK
| | | | - Malcolm Kohler
- Pulmonary Division, University Hospital of Zurich, Zurich, Switzerland
| | - Anne M Kirsten
- Pulmonary Research Institute at Lung Clinic Grosshansdorf, Airway Research Center North, Member of the German Centre for Lung Research, Grosshansdorf, Germany
| | - Jörg D Leuppi
- Medical University Clinic, Cantonal Hospital Baselland, Liestal and Medical Faculty, University of Basel, Basel, Switzerland
| | - Helgo Magnussen
- Pulmonary Research Institute at Lung Clinic Grosshansdorf, Airway Research Center North, Member of the German Centre for Lung Research, Grosshansdorf, Germany
| | - François Maltais
- Centre de recherche, Institut Universitaire de cardiologie et de pneumologie de Québec, 2725 Chemin Ste-Foy Québec, Université Laval, Québec, Canada
| | - William D-C Man
- NIHR Respiratory Biomedical Research Unit, Royal Brompton & Harefield NHS Foundation Trust and Imperial College, London, UK
| | - Zoe J McKeough
- Clinical and Rehabilitation Sciences, The University of Sydney, Sydney, New South Wales, Australia
| | - Rafael Mesquita
- Department of Research and Education, CIRO+, Center of Expertise for Chronic Organ Failure, Horn, The Netherlands.,Department of Respiratory Medicine, Maastricht University Medical Center+ (MUMC+), Maastricht, The Netherlands
| | - David Miedinger
- Medical University Clinic, Cantonal Hospital Baselland, Liestal and Medical Faculty, University of Basel, Basel, Switzerland
| | - Fabio Pitta
- Laboratory of Research in Respiratory Physiotherapy, Department of Physiotherapy, State University of Londrina (UEL), Londrina, Brazil
| | - Sally J Singh
- Centre for Exercise and Rehabilitation Science, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Frank W J M Smeenk
- Department of Respiratory Medicine, Catharina Hospital, Eindhoven, The Netherlands
| | | | - Barbara Vagaggini
- Cardio-Thoracic and Vascular Department, University of Pisa, Pisa, Italy
| | - Benjamin Waschki
- Pulmonary Research Institute at Lung Clinic Grosshansdorf, Airway Research Center North, Member of the German Centre for Lung Research, Grosshansdorf, Germany
| | - Henrik Watz
- Pulmonary Research Institute at Lung Clinic Grosshansdorf, Airway Research Center North, Member of the German Centre for Lung Research, Grosshansdorf, Germany
| | - Emiel F M Wouters
- Department of Research and Education, CIRO+, Center of Expertise for Chronic Organ Failure, Horn, The Netherlands.,Department of Respiratory Medicine, Maastricht University Medical Center+ (MUMC+), Maastricht, The Netherlands
| | - Stefanie Zogg
- Medical University Clinic, Cantonal Hospital Baselland, Liestal and Medical Faculty, University of Basel, Basel, Switzerland
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