Comparison of Neurocognitive Functions between Positional Obstructive Sleep Apnea Patients and Non-Positional Obstructive Sleep Apnea Patients in the Korean Elderly Population.
10.4306/jknpa.2015.54.4.564
- Author:
Hyung Chan KIM
1
;
Suk Hoon KANG
;
Jin Hee CHOI
;
Hae Gyung CHUNG
;
Tae Yong KIM
;
Hyung Seok SO
Author Information
1. Department of Psychiatry, Veterans Health Service Medical Center, Seoul, Korea. sleepkang@bohun.or.kr
- Publication Type:Original Article
- Keywords:
Obstructive sleep apnea;
Sleep position;
Non-positional sleep apnea;
Polysomnography;
Neurocognitive function
- MeSH:
Aged*;
Follow-Up Studies;
Humans;
Polysomnography;
Sleep Apnea Syndromes;
Sleep Apnea, Obstructive*;
Supine Position
- From:Journal of Korean Neuropsychiatric Association
2015;54(4):564-569
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
OBJECTIVES: Obstructive sleep apnea (OSA) is classified as positional sleep apnea (POSA) and non-positional sleep apnea (NPOSA) according to apnea-hypopnea index (AHI) changed by sleep position. The aim of this study was to compare neurocognitive functions between two groups in the elderly Korean population. METHODS: Forty-four subjects in OSA patients with total AHI> or =5 participated as criteria for POSA (n=25) with 1) supine position AHI/non-supine position AHI> or =2 and 2) total AHI> or =5 or not (NPOSA, n=19). All participants completed clinical interview by physician and neurocognitive function assessments. Mann-Whitney U and chi-square test were performed for comparison of neurocognitive functions and sleep characteristics with polysomnography between two groups. RESULTS: No significant difference in demographic and clinical characteristics was observed between the two groups. However the NPOSA group showed more decline than the POSA group on the Boston naming test (p=0.034), digit span test (p=0.001), go-no-go test (p=0.042), and fist-edge-palm test (p=0.007). CONCLUSION: In this study NPOSA patients were found to have lower cognitive functions compared to POSA patients. A larger sample and long term follow-up study might be needed.
