ISSN 1225-7354 / eISSN : 2713-8631
수면정신생리 (15권2호 82-86)
Sleep Fragementation Decreases during the nCPAP Titration Night in Obstructive Sleep Apnea Syndrome
폐쇄성 수면무호흡증에서 지속적 상기도 양압술 압력 처방 검사 시 나타나는 수면분절의 감소
Lee, Jin-Seong;Jeong, Do-Un;
Center for Sleep and Chronobiology, Seoul National University Hospital;Center for Sleep and Chronobiology, Seoul National University Hospital;
Objectives: Obstructive sleep apnea syndrome (OSAS) not only causes respiratory disturbances during sleep but also decreases the quality of nocturnal sleep through sleep fragmentation and sleep structure change. We aimed at comparing the changes in sleep fragmentation and structure between baseline (diagnostic) nocturnal polysomnography (NPSG) and nCPAP (nasal continuous positive airway pressure) titration trial. Methods: One hundred and three patients with a baseline night of respiratory disturbance index (RDI) of 5 or greater and reduced RDI score during nCPAP titration night were retrospectively selected for the study. Sleep fragementation and sleep structure between baseline NPSG and the NPSG during nCPAP titration were compared. Sleep fragmentation index (SFI) was defined as the total number of awakenings and shifts to stage 1 sleep divided by the total sleep time in hour. SFI and other polysomnographic parameters were statistically compared between the two nights. Results: SFI during baseline NPSG and nCPAP titration nights were
Obstructive sleep apnea;nCPAP;Sleep fragementation index;