ĐẶC ĐIỂM CẤU TRÚC GIẤC NGỦ CỦA NGƯỜI BỆNH MẮC HỘI CHỨNG NGỪNG THỞ DO TẮC NGHẼN KHI NGỦ TẠI BỆNH VIỆN ĐẠI HỌC Y HÀ NỘI

Abstract

Objective: Describe the characteristics of sleep structure of patients with obstructive sleep apnea syndrome examined at Hanoi Medical University Hospital in 2022-2023 and analyze the relationship between changes in sleep structure sleep and apnea level of the above group of subjects. Method: Cross-sectional description on 42 patients who came for examination and polysomnography at the Hospital. Results and conclusions: Sleep index of study subjects: Average total sleep time 315.8 ± 67.95 minutes, average sleep latency time 10,326 ± 2.31 with the majority of patients having time Sleep potential is less than 30 minutes (90.5%), average sleep efficiency is 83.90±13.17 and the proportion of patients with sleep efficiency greater than 80% is 69%. The proportion of sleep stages of study participants changed compared to normal people, in which the prolongation of the proportion of sleep stages N1 and N2 (light sleep stage) and the decline of sleep stages were observed. ratio of N3 and REM sleep stages (deep sleep stage). Characteristics of sleep structure fragmentation of research subjects. Average AHI index: 44.72 ± 28.02 attacks/hour, in which the proportion of patients with severe obstructive apnea (AHI index ≥ 30 attacks/hour) predominates with 69%. There is no association. Relationship between changes in N1 and N2 sleep with the patient's level of apnea. There is a relationship between changes in the participants' sleep structure and the level of obstructive apnea according to the AHI index. The decrease in the average ratio of N3 sleep stage and REM sleep stage and increase in microwake index from mild to severe group were statistically significant (p<0.05).

Keywords: Polysomnography, obstructive sleep apnea.