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急性心肌梗死伴高血压患者脉压变化与心率变异的关系 被引量:5

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摘要 目的观察急性心肌梗死(AMI)伴高血压患者脉压变化与心率变异(HRV)之间的关系。方法应用24 h动态心电图测量62例AMI伴高血压患者[A1组18例脉压差(PP)<40 mmHg,A2组15例(PP 40~50mmHg),A3组17例(PP 51~60 mmHg),A4组12例(PP>60 mmHg)]HRV,并与AMI非高血压患者39例(B组)及正常对照组32例(C组)进行比较。结果与C组比较,B组及A1、A2、A3和A4组的HRV指标均差异有统计学意义(P<0.01,P<0.05)。与B组比较,AMI并高血压各组中,A1组各指标差异无统计学意义(P>0.05);A2及A3组NN间期标准差及NN间期平均值的标准差差异有统计学意义(P<0.05),而全程NN间期之差的平方根和相邻NN间期差值超过50 ms的心搏数占NN间期心搏数的百分比差异均无统计学意义(P>0.05);A4组各指标均差异有统计学意义(P<0.01,P<0.05)。结论 AMI伴高血压HRV发生变化,心脏植物神经功能异常,且随脉压程度增高而加重,提示AMI伴高血压脉压变化与HRV存在明显关系。
出处 《广东医学》 CAS CSCD 北大核心 2013年第8期1237-1238,共2页 Guangdong Medical Journal
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