老年人左心室舒张功能减退窦性心率振荡的研究  

Investigation on heart rate turbulence in patients with decreased left ventricular diastolic function.

作　　者：缪京莉[1] 白鸥[2] 陈蕾[1] 

机构地区：[1]空军总医院干部病房,北京100036 [2]新疆煤矿总医院

出　　处：《中国综合临床》2008年第9期894-896,共3页Clinical Medicine of China

摘　　要：目的 探讨老年人左心室舒张功能减退患者窦性心率振荡（HRT）特点，评价HRT对左心室舒张功能减退患者危险分层评估的价值。方法 选择左心室舒张功能减退患者40例作为观察组，其中左心房增大组20例，正常组20例；选择体检健康者20例作为对照组。分析TO、TS与Macruz指数、二尖瓣舒张早期血流速度峰影舒张晚期血流速度峰值（E／A）比值以及心率变异性（HRV）的相关性。结果 观察组TO升高（P〈0．05），TS下降（P〈0．01）；左心房增大组TO〉左心房正常组（P〈0.05），TS〈左心房正常组（P〈0．01）；TO与Macruz指数呈正相关（P〈0．01），与SDNN，SDANN呈负相关（均P〈0．05）；TS与Macruz指数呈负相关（P〈0．05），与E／A、SDNN、SDANN呈正相关。结论 HRT在预测老年人左心室舒张功能减退患者危险性方面具有一定价值。Objective To assess the characteristics of heart rate turbulencer（HRT） in elderly patients with decreased left ventricular diastolic function. Methods 40 patients were divided into two groups： 20 patients with enlarged left atrium and 20 patients without enlarged left atrium. 20 healthy people were selected as controls. Turbu- lence onset （TO）and turbulence slope iTS） were measured, and correlation was analyzed between TO, TS and the E/A, index of Macruz and heart rate variability （HRV）. Results TO was higher （ P 〈 0. 05 ） and TS was lower in patients（ P 〈0.01 ） ,TO was higher in patients with enlarged left atrium than in with out enlarged lef atrium people （P〈0.05） and TS was lower （P〈0.01）. TO was positively（P 〈0.01 ） and TS was negatively（P 〈0.05 ）, correlated with the index of Macruz. TO was negatively （ P 〈 0.05 ） and TS was positively （ P 〈 0.05 ） related to SI）NN and SI）ANN. Conclusion HRT can be used as a potential risk predictor in decreased left ventricular diastolic function patients.

关 键 词：心率振荡 舒张功能减退 老年人 

分 类 号：R541.7[医药卫生—心血管疾病]