Annals of Thoracic Medicine Official publication of the Saudi Thoracic Society, affiliated to King Saud University
 
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ORIGINAL ARTICLE
Year : 2018  |  Volume : 13  |  Issue : 1  |  Page : 42-47

Comparison of positional and rapid eye movement-dependent sleep apnea syndromes


1 Department of Respiratory Medicine, Kastamonu State Hospital, Kastamonu, Turkey
2 Department of Otolaryngology, Akdeniz University School of Medicine, Antalya, Turkey
3 Department of Sleep Laboratory, Akdeniz University School of Medicine, Antalya, Turkey
4 Department of Biostatistics and Medicine Informatics, Akdeniz University School of Medicine, Antalya, Turkey
5 Department of Respiratory Medicine, Akdeniz University School of Medicine, Antalya, Turkey

Correspondence Address:
Dr. Aykut Cilli
Department of Chest Diseases, Akdeniz University, Antalya
Turkey
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DOI: 10.4103/atm.ATM_184_17

PMID: 29387255

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AIM: We aimed to compare the clinical, epidemiological, and polysomnographic features of rapid eye movement (REM)-dependent obstructive sleep apnea syndrome (OSAS) and positional OSAS which are two separate clinical entities. METHODS: Between January 2014 and December 2015, at the Akdeniz University Medical Faculty Hospital, patients who were diagnosed REM-dependent and positional OSAS with polysomnography were retrospectively studied. RESULTS: In this study, 1727 patients were screened consecutively. Five hundred and eighty-four patients were included in the study. Of the patients, 24.6% (140) were diagnosed with REM-dependent OSAS and 75.4% (444) were diagnosed as positional OSAS. Female predominance was found in REM-dependent OSAS (P < 0.001). The mean total apnea–hypopnea index (AHI), non-REM AHI, and supine AHI in REM-dependent OSAS were 14.73, 9.24, and 17.73, respectively, and these values were significantly lower when compared with positional OSAS (P < 0.001). Patients diagnosed with REM-dependent OSAS had a statistically significant tendency to be overweight (P < 0.001). For REM-dependent OSAS, total pulse rate, supine pulse rate, and REM pulse rate were statistically higher than positional OSAS (P < 0.001). CONCLUSION: Positional OSAS is a clinical entity that is more common than REM-dependent OSAS. OSAS severity is higher in positional OSAS than REM-dependent OSAS. REM-dependent OSAS is observed more commonly in women.


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