Journal of Sleep Disorders: Treatment and CareISSN: 2325-9639

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Research Article, J Sleep Disor Treat Care Vol: 3 Issue: 2

The Importance of Habitual Sleep Position in Obstructive Sleep Apnea among Asians

Naricha Chirakalwasan1,2*, Busarakum Teerapraipruk1,3, Lalitha Pereirasamy1,4
1Excellence Center for Sleep Disorders, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
2Division of Pulmonary and Critical Care Medicine, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
3Department of Otolaryngology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
4Department of Respiratory Medicine, Penang General Hospital, Penang, Malaysia
Corresponding author : Naricha Chirakalwasan
Division of Pulmonary and Critical Care Medicine, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
Tel: 66-84-962-9502; Fax: 66-2250-1038
Email: [email protected]
Received: November 22, 2013 Accepted: March 17, 2014 Published: March 20, 2014
Citation: Chirakalwasan N, Teerapraipruk B, Pereirasamy L (2014) The Importance of Habitual Sleep Position in Obstructive Sleep Apnea among Asians. J Sleep Disor: Treat Care 3:2. doi:10.4172/2325-9639.1000135

Abstract

The Importance of Habitual Sleep Position in Obstructive Sleep Apnea among Asians

Introduction: Our prior investigation found positional sleep apnea accounting for approximately 70% of Asian obstructive sleep apnea patients. We hypothesized that the habitual side sleeping may indicate an obstructive sleep apnea deterring mechanism. Method: We retrospectively reviewed 542 polysomnographic studies from our sleep laboratory. We included adult patients with respiratory disturbance index ≥ 5 from baseline polysomnography. Habitual sleep position was obtained from the pretest questionnaire. Results: Forty-eight percent were noted to be habitual supinesleepers. Most habitual non-supine sleepers were habitual side sleepers with predominantly right-sided preference. Most habitual side sleepers when compared to habitual back sleepers were found to be more female, having higher body mass index, and reported more frequent snoring. We also found the differences in polysomnographic findings in which lower mean oxygen saturation and higher non-supine respiratory disturbance index were observed in habitual side sleepers as compared to habitual back sleepers. Only female sex was a significant predictor for being a habitual side sleeper. Total respiratory disturbance index, age>60, and wake after sleep onset >30 minutes appeared as risk factors for developing cardiovascular-related diseases in habitual side sleeping obstructive sleep apnea patients.

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