ArticleSultan Qaboos University medical journal2019
The Effect of Change in Posture on Spirometry in Patients with Obstructive Sleep Apnoea Syndrome.
Article in Sultan Qaboos University medical journal, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 4 citations in OpenAlex.
- Prevalence of Obstructive Sleep Apnea Among Patients with Secondary Polycythemia: A Retrospective Cross-sectional Study.Oman medical journal · 2025Article
- Time-Restricted Eating Benefits on Pulmonary Function and Postural Balance in Overweight or Obese Women.Nutrients · 2024Article
- Circadian Rhythm, Sleep, and Immune Response and the Fight against COVID-19.Oman medical journal · 2023Review
- Re: The Effect of Change in Posture on Spirometry in Patients with Obstructive Sleep Apnoea Syndrome.Sultan Qaboos University medical journal · 2020Article
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesObstructive sleep apnoea syndrome (OSAS) is a growing health concern as it is associated with serious comorbidities. OSAS is mainly related to obesity, age, gender and a narrowed upper airway is commonly seen in patients with OSAS. This study aimed to compare spirometry parameters between obese OSAS patients and non-obese OSAS patients when patients moved from sitting to supine.
methodsThis cross-sectional study was conducted at Sultan Qaboos University Hospital, Muscat, Oman, between December 2009 and December 2010. Patients with severe OSAS and who were OSAS treatment naïve were recruited. Spirometry was performed in all patients in sitting and supine positions to assess forced vital capacity (FVC), forced expiratory volume in the first second (FEV1), FEV1/FVC, forced expiratory flow (FEF) 50%, FEF 25-75%, maximum forced inspiratory flow and expiratory reserve volume. The mean difference in spirometry parameters between patients in sitting and supine positions was calculated.
resultsA total of 27 OSAS patients (19 males and 8 females) were included in this study. There was a significant difference in FEV1/FVC in obese and non-obese patients when changing position (
conclusionA supine position may cause lower airway obstruction in obese patients with OSAS. The reduced FVC in males possibly contributes to the high prevalence of OSAS in men compared to women.
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