摘要
目的 探讨持续气道正压通气(CPAP)对重度阻塞性睡眠呼吸暂停综合征(OSAS)患者日间嗜睡程度的影响.方法 对2013年5至10月在四川大学华西医院睡眠中心就诊、经整夜多导睡眠图(PSG)监测确诊为重度OSAS且接受CPAP治疗的70例男性患者的临床资料进行回顾性分析,患者平均年龄(42.7±8.4)岁,平均体质指数(BMI)(29.2±4.2)kg/m2.分析其CPAP治疗前、治疗时睡眠结构、缺氧状况及多次小睡潜伏时间试验(MSLT)结果的变化.对MSLT结果与各期睡眠百分比、微觉醒指数、呼吸相关睡眠参数的相关性进行分析.结果 与治疗前相比,CPAP治疗时患者呼吸暂停低通气指数(AHI)明显降低[(4.4±2.7)比(67.7±18.9)次/h],最长呼吸暂停时间显著缩短[24.0(16.5,29.6)比61.3(51.0,74.8)s],最低血氧饱和度明显改善[(84.8±8.8)%比(54.4±18.7)%],患者睡眠结构改善明显,N3期睡眠比例增加[18.2(12.5,25.6)%比2.4(0.1,8.2)%],快速眼动(REM)睡眠期比例增多[(22.3±7.7)%比(12.7±5.8)%],睡眠知觉显著改善[89.1(88.3,91.2)%比82.7(82.7,87.0)%],多次小睡平均潜伏期延长[(8.5±3.8)比(4.8±2.3)min](均P<0.05).MSLT与AHI、N1期睡眠比例、最长呼吸暂停时间及微觉醒指数呈负相关(r=-0.501、-0.308、-0.309、-0.501,均P〈0.01),与REM期及N3期睡眠比例、最低血氧饱和度及平均血氧饱和度呈正相关(r=0.235、0.394、0.398、0.440,均P〈0.05).结论 CPAP治疗能明显改变OSAS患者夜间缺氧状况,改善睡眠结构,减轻患者日间嗜睡程度.
Objective To evaluate the effects of continuous positive airway pressure (CPAP) on daytime sleepiness in patients with severe obstructive sleep apnea syndrome (OSAS). Methods Retrospective evaluations were performed for 70 consecutive patients at the medical sleep center,West China Hospital, Sichuan University from May" 2013 to October 2013. They were all diagnosed with severe OSAS and underwent overnight CPAP titration. Their mean age and body mass index (BMI) were (42. 7 ± 8.4) years and (29. 2 ± 4. 2) kg/m2 respectively. The sleep structure, hypoxia and objective sleepiness was compared between baseline and CPAP titration. And correspondence analysis was performed between multiple sleep latency tests (MSLT) and other sleep and expiratory parameters. Results Comparing to the baseline polysomnogram (PSG) levels,CPAP titration significantly decreased apnea hypopnea index (AHI) ( (4.4 ± 2.7 ) vs ( 67. 7 ± 18.9 )/h), significantly shortened the longest apnea time (24.0 ( 16. 5,29. 6 ) vs 61.3 (51.0,74.8) s) and raised the lowest oxygen saturation ((84.8 ± 8.8)% vs (54.4 ± 18.7)%). Furthermore, the percentage of stage 3 ( N3 % ) ( 18.2 ( 12. 5,25.6) % vs 2.4 (0. 1,8.2) % ), the percentage of stage rapid eye movement (REM) sleep ( REM% ) ( ( 22. 3 ± 7.7 ) % vs ( 12. 7 ± 5.8 ) % ) and sleep perception improved significantly ( 89. 1 ( 88.3, 91.2 ) % vs 82. 7 ( 82. 7, 87.0 ) %, all P 〈 0.05 ). Furthermore, CPAP also significantly improved their mean sleep latency of multiple sleep latency test (MSLT) ( (8.5 ±3.8) vs (4. 8 ±2. 3) min,P 〈 0.05) ; the mean sleep latency of MSLT was negatively correlated with AHI, the percentage of stage 1 ( N1% ) and the longest apnea ( r =- 0. 501, - 0. 308, - 0. 309, - 0. 501, all P 〈 0. 01 ) ; but positively correlated with REM%, N3 %, mean oxygen saturation and minimal oxygen saturation during CPAP titration ( r = 0. 235,0. 394,
出处
《中华医学杂志》
CAS
CSCD
北大核心
2014年第6期412-415,共4页
National Medical Journal of China
基金
国家自然科学基金(81170072、81328010)