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摘要: 目的:研究体位改变对OSAHS患者日间嗜睡的影响及相关性分析。方法:对90例OSAHS患者行Epworth嗜睡量表嗜睡量表评分(ESS)并按呼吸暂停低通气指数(AHI)分为轻度OSAHS组(5 ≤ AHI<15)、中度OSAHS组(15 ≤ AHI<30)和重度OSAHS组(AHI ≥ 30),比较体位改变对不同程度OSAHS患者日间嗜睡的影响。结果:由仰卧位变换为侧卧位时,3组微觉醒指数差异、夜间最低血氧饱和度(MinSpO2)、REM睡眠占总睡眠时间的百分率(REM%)及NREM睡眠占总睡眠时间的百分率(NREM%)均差异有统计学意义(F=12.10、43.67、15.81、13.17,均P<0.05);与仰卧位相比,OSAHS重度组侧卧位时MinSpO2、REM%及NREM%差异有统计学意义(t=3.02、2.41、2.90,均P<0.05)。仰卧位呼吸暂停指数(S-AHI)、侧卧位呼吸暂停指数(L-AHI)与OSAHS轻、中度组ESS评分无相关性(P>0.05),而L-AHI与OSAHS重度组ESS评分显著相关(r=0.454,P<0.01);REM L-AHI和NREM L-AHI与OSAHS重度组ESS评分显著相关(r=0.522,P<0.01;r=0.425,P<0.001)。结论:睡眠体位改变对重度OSAHS组的睡眠结构、呼吸事件有显著的影响,与S-AHI相比,L-AHI更能反映重度OSAHS患者日间嗜睡严重程度。
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关键词:
- 睡眠呼吸暂停低通气综合征,阻塞性 /
- 睡眠体位 /
- 多次睡眠潜伏期试验 /
- 体位呼吸暂停指数
Abstract: Objective: To observe the effects of sleep body posture on subjective sleepiness in patients with OSAHS.Method: We assessed the sleeping body position, the sleep structure, position specific AHI and the Epworth Sleepiness Scale (ESS) in a total of 90 patients with OSAHS. The patients were grouped according to AHI:mild OSAHS (5 ≤ AHI<15), moderate (15 ≤ AHI<30) and severe (AHI ≥ 30). The polysomnography data and clinical characteristics were compared between each group.Result: There was statistically significant difference in arousal index,MinSpO2,REM% and NREM% among three groups (F value was 12.10,43.67,15.81,13.17,respectively,P<0.05). Compared with supine,the severe OSAHS group had significantly bigger changes in MinSpO2, REM% and NREM%(t value was 3.02,2.41,2.90,respectively,P<0.05). For mild-to-moderate groups,there was no correlation between the ESS and the AHI at any position(P>0.05). For severe group,the ESS was significantly correlated with L-AHI(r=0.454,P<0.01);the REM L-AHI and NREM L-AHI was also significantly correlated with ESS of severe group (r=0.522 and 0.425,P<0.01). Conclusion: The sleep body posture had significant effects on sleep structure and respiratory events in severe OSAHS group. The L-AHI was found to have a closer association with daytime sleepiness in severe OSAHS than other groups. -
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