Sleep Medicine and Psychophysiology (수면정신생리)
- Volume 4 Issue 2
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- Pages.164-171
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- 1997
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- 1225-7354(pISSN)
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- 2713-8631(eISSN)
Preliminary Study of The Periodic Limb Movement Disorder Following Nasal CPAP : Is It Associated With Supine-Sleeping Position?
지속적 양압술과 수면중 주기적 사지운동 장애의 관계에 대한 예비적 연구 : 앙와위가 주기적 사지운동 장애와 관련되는가?
- Yang, Chang-Kook (Department of Psychiatry, Dong-A University College of Medicine) ;
- Clerk, Alex A (Stanford University Sleep Disorders Clinic)
- Published : 1997.12.30
Abstract
Introduction : Periodic limb movement disorder (PLMD) is shown to common in patients with OSA and may become evident or worsened when treated with nasal continuous positive airway pressure (CPAP). Whether this is due to im proved sleep continuity. adverse nocturnal body positioning, uncovered by CPAP, or due to the CPAP stimulus is still debat-ed. We hypothesized that the increase in PLM activity following CPAP is associated with more supine-sleeping tendencies when being treated with CPAP. In the present work, we compared differences in the PLMD index (PLMI) and sleeping position of patients with sleep disordered breathing before and after CPAP treatment. Method : We studied 16 patients (mean age 46 yr, 9M, 7F) with OSA (11 patients) or UARS (5 patients) who either had PLMD on initial polysomnogram (baseline PSG) or on nasal CPAP trial (CPAP PSG). All periodic leg movements were scored on anterior tibialis EMG during sleep according to standard criteria (net duration; 0.5-5.0 seconds, intervals; 4-90 seconds. 4 consecutive movements). Paired t-tests compared PLMD index (PLMI), PLMD-related arousal index (PLMD-ArI), respiratory disturbance index (RDI), and supine sleeping position spent with baseline PSG and CPAP PSG. Results : Ten patients (63%) on baseline PSG and fifteen patients (94%) on CPAP PSG had documented PLMD (