Ann Sleep Med Res | Volume 1, Issue 2 | Research Article | Open Access
Gülgün Çetintaş Afşar1*, Sema Saraç1, Özlem Oruç1 and Özgür Bilgin Topçuoğlu2
1Department of Pulmonary Medicine, Istanbul Sureyyapasa Chest Diseases and Chest Surgery Hospital, Turkey
2Department of Neurology, Istanbul Sureyyapasa Chest Diseases and Chest Surgery Hospital, Turkey
*Correspondance to: Gülgün Çetintaş Afşar
Fulltext PDFBackground: Obstructive sleep apnea (OSA) is the most common sleep disorder affecting 3% to 10% of the adult population. One of the contributing factors to development of OSA is the sleep position. The aim of this study is to investigate the characteristics and demographics features of patients with supine isolated obstructive sleep apnea (siOSA) and discuss the differences between non positional OSA (NPOSA) groups.
Methods: A retrospective review of the polysomnography records of 1,100 individuals, who were admitted to the Sleep Laboratory of Sureyyapaşa Chest Diseases and Thoracic Surgery Training and Research Hospital between January 2011 and December 2013, was indicated in the study. Nine hundred seventy subjects (88.8%) who were diagnosed as an obstructive sleep apnea (OSA) were included in the study. Supine isolated obstructive sleep apnea (siOSA) was defined as a total Apnea-Hypopnea Index (AHI) greater than 5, non-supine AHI lower than 5 and an AHI in the supine position twice as high or more when compared with AHI in non-supine position. Characteristics of siOSA and non-positional OSA groups were compared statistically.
Results: In the study group, 269 (27.7%) were considered to have supine isolated OSA (siOSA) and 701 (72.3%) were non positional OSA (NPOSA). siOSA patients had lower body mass index than NPOSA patients (p<0.01). Also they were less sleepy and had less additional disease than the NPOSA patients (p<0.01).
Conclusion: This study showed that sup in isolated OSA was interpreted as a different clinical entity. Patients in the siOSA group had lower weight, less sleepy and had less additional diseases.
Obstructive sleep apnea subtypes; Demographic differences; Positional OSA
Afşar GÇ, Saraç S, Oruç Ö, Topçuoğlu ÖB. Supine Isolated Positional OSA versus Non-Positional OSA: Key Demographic Differences. Ann Sleep Med Res. 2017;1(2):1006 .