Comparison between Group I in Which Non-Supine Apnea-Hypopnea Index ≥5 and Group II in Which Non-Supine Apnea-Hypopnea Index<5 in Patients with Positional Sleep Apnea
체위성 폐쇄성 수면무호흡증 환자에서 비앙와위 무호흡-저호흡 지수가 5 이상과 5 미만인 집단간의 비교
Park, Won Il;Jung, Hye Won;Joo, Joon Bum;Cho, Ju Eun;Kim, Jong Yang;
Department of Otolaryngology, National Police Hospital;Department of Otolaryngology, National Police Hospital;Department of Otolaryngology, National Police Hospital;Department of Otolaryngology, National Police Hospital;Department of Otolaryngology, National Police Hospital;
DOI : http://dx.doi.org/10.14401/KASMED.2013.20.1.031
Objectives: The aim of this study was to evaluate the differences in patients with positional dependent sleep apnea according to their non-supine apnea-hypopnea index (AHI, ${geq}5$ vs. <5). Methods: 92 patients with positional sleep apnea were evaluated. The patients were divided into two groups : group I was non-supine AHI having ${geq}5$ ; group II was non-supine AHI having less than 5. Statistical analysis was performed to find the difference between two groups. Results: In 92 patients, the number of group I patients was 11 (12%) and the number of group II patients was 81 (88%). In the severe AHI group, percentage of group I was dominated (70%) and showing a significant difference compared with the mild and moderate AHI groups (p<.05). In the severe body mass index (BMI) group, percentage of group I was dominated (54.5%) and showing a significant difference compared with of the mild and moderate BMI groups (p<.05). The percentage of group I was significantly higher than group II (p<.05) in the AHI, supine AHI, non-supine AHI and snore time. Conclusions: In patients with positional sleep apnea, severe OSA and high BMI are more common in patients with non-supine AHI${geq}5$ than non-supine AHI<5.
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