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冠心病患者的心率变异与冠状动脉病变和心肌缺血的关系 被引量:28

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摘要 目的探讨冠心病患者的心率变异(HRV)与冠状动脉(简称冠脉)狭窄程度、冠脉病变、心肌缺血的关系。方法患者405例行三通道动态心电图监测和冠脉造影,根据检测结果分别对冠脉狭窄不同程度、冠脉病变部位和心肌缺血情况进行心率变异性(HRV)分析。结果(1):冠心病患者405例冠脉狭窄276例(68.1%),无狭窄129(31.9%)。检测出有心肌缺血221例(54.6%),无心肌缺血184例(45.4%)。冠脉病变部位以冠脉左前降支(LAD)病变和右冠脉(RCA)病变为主,其次是左回旋支(LCX)病变。(2):随着冠状动脉狭窄程度加重,窦性RR间期标准差(SDNN)、高频功率(HF)降低,而低频功率(LF)/HF升高。SDNN、HF在冠脉重度狭窄组较冠脉无狭窄组有显著的统计学差异。(3):在冠脉病变部位中,HRV指标变化最显著是LAD病变,其次RCA病变,LCX病变不明显。(4):心肌缺血患者SDNN、HF均明显低于无心肌缺血患者(P<0.01)。结论冠心病患者HRV与冠脉狭窄程度、冠脉病变、心肌缺血有密切关系。
出处 《中华高血压杂志》 CAS CSCD 北大核心 2007年第3期248-249,共2页 Chinese Journal of Hypertension
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