阻塞性睡眠呼吸暂停低通气综合征患者血清白三烯B4水平的研究

International Journal of Respiration(2016)

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Abstract
目的 研究不同程度OSAHS患者血清白三烯B4 (leukotriene B4,LTB4)的水平,探讨OSAHS患者发生心血管疾病的可能机制.方法 经多导睡眠图(polysomnography,PSG)监测确诊为OSAHS患者48例,根据呼吸暂停低通气指数(apnea-hypopnea index,AHI)分为轻、中、重3组,行PSG筛查除外OSAHS者12例,作为正常对照组,各组均于PSG监测后采空腹静脉血,应用酶联免疫吸附法(enzyme-linked immunosorbent assay,ELISA)检测血清LTB4水平.结果 ①与对照组比较,中、重度OSAHS组血清LTB4水平升高,差异有统计学意义(P值均<0.05);轻度OSAHS组与对照组比较差异无统计学意义(P>0.05).②OSAHS患者血清LTB4水平与AHI、氧减指数(oxygen desaturation index,ODI)、血氧饱和度小于0.9时间占睡眠时间百分比(percentage of time spend when oxygensaturation lower than 0.9,SLT90%)、最长呼吸暂停时间(longest apnea time,LAT)呈显著正相关(r值分别0.582、0.516、0.577、0.577,P值均<0.01),与夜间最低血氧饱和度(minimal satuation of blood oxygen,SaO2 min)呈显著负相关(r=-0.620,P<0.01).③多元逐步回归结果显示,SaO2 min是影响OSAHS患者血清LTB4水平的独立危险因素(R2 =0.385,P<0.01).结论 OSHAS患者血清LTB4水平明显升高,缺氧严重程度与OSHAS患者血清LTB4水平密切相关.
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Key words
Obstructive sleep apnea-hypopnea syndrome,Leukotriene B4
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