睡眠呼吸暂停低通气综合征与患者肱踝脉搏波传导速度的关系

目的 探讨OSAHS患者肱踝脉搏波传导速度(baPWV)与动脉僵硬度的相关影响因素.方法 收集解放军总医院2008年9月至2010年1月间经多导睡眠监测(PSG)诊断为OSAHS的76例男性患者,年龄20～70岁,平均(42±11)岁,采集临床病史等资料,并对其进行血压和baPWV监测、颈动脉和上下肢动脉超声检查,观察动脉内中膜增厚、动脉粥样硬化斑块形成及钙化情况,评价动脉壁形态学改变.根据PSG监测结果中呼吸暂停低通气指数(AHI)及最低SaO2将患者分为轻中度及重度组,并分析影响OSAHS患者baPWV的相关指标.结果 重度组baPWV(1459±185)cm/s]显著高于轻中度组(1328±130)cm/s,P＜0.01],多元逐步回归分析结果提示OSAHS患者的年龄、氧减指数、收缩压与baPWV具有相关性(F=1.726～5.574,P＜0.05).结论 随着患者OSAHS病情加重,baPWV数值增高;OSAHS患者baPWV与年龄、氧减指数及收缩压具有相关性;OSAHS患者的baPWV异常改变早于动脉粥样硬化等形态学改变,值得临床进一步研究;作为OSAHS患者缺氧严重程度的指标,氧减指数有其优点.

Abstract：

Objective To explore the related factors for the measurement of arterial stiffness by brachial-ankle pulse wave velocity (baPWV) in patients with obstructive sleep apnea hypopnea syndrome (OSAHS).Methods The blood pressure and baPWV in 76 patients with OSAHS confirmed by polysomnography (PSG) were measured.Clinical data were collected, and the carotid and extremity arteries were examined by ultrasound.Arterial intima thickening, atherosclerotic plaque formation and calcification,and the morphological changes of the arterial wall were evaluated.The related factors for baPWV in patients with OSAHS were analyzed.Results The baPWV was significantly higher in the severe OSAHS group as compared to the low-moderate group ( P ＜ 0.01 ), as classified according to the apnea hypopnea index and the lowest oxygen saturation.Multiple regression analysis showed that the baPWV of patients with OSAHS was related to age, oxygen desaturation index and systolic blood pressure ( F = 1.726 - 5.574, P ＜ 0.05 ).Conclusions Our study showed that with OSAHS exacerbations, the baPWV value increased.The haPWV of patients with OSAHS was related to age, oxygen desaturation index and systolic blood pressure.The abnormal changes of baPWV were present earlier than the morphological changes of atherosclerosis for OSAHS patients.

Related factor analysis of brachial-ankle pulse wave velocity in patients with obstructive sleep apnea hypopnea syndrome

Objective To explore the related factors for the measurement of arterial stiffness by brachial-ankle pulse wave velocity (baPWV) in patients with obstructive sleep apnea hypopnea syndrome (OSAHS).Methods The blood pressure and baPWV in 76 patients with OSAHS confirmed by polysomnography (PSG) were measured.Clinical data were collected, and the carotid and extremity arteries were examined by ultrasound.Arterial intima thickening, atherosclerotic plaque formation and calcification,and the morphological changes of the arterial wall were evaluated.The related factors for baPWV in patients with OSAHS were analyzed.Results The baPWV was significantly higher in the severe OSAHS group as compared to the low-moderate group ( P ＜ 0.01 ), as classified according to the apnea hypopnea index and the lowest oxygen saturation.Multiple regression analysis showed that the baPWV of patients with OSAHS was related to age, oxygen desaturation index and systolic blood pressure ( F = 1.726 - 5.574, P ＜ 0.05 ).Conclusions Our study showed that with OSAHS exacerbations, the baPWV value increased.The haPWV of patients with OSAHS was related to age, oxygen desaturation index and systolic blood pressure.The abnormal changes of baPWV were present earlier than the morphological changes of atherosclerosis for OSAHS patients.