Objective To investigate the circadian of heart rate variability(HRV)in cases with acute myocardial infarction(AMI)after thrombolysis.Method The cases with AMI were divided into the recanalization group,the no-recanalization group and the no-thrombolysis group.The dynamic electrocardiogram was used to evaluate the HRV.Results The levels of TF,LF and HF in the recanalization group were obviously higher than those in no-recanalization group and the no-thrombolysis group,and there were significant differences among them(P ＜ 0.05).The levels of LF/HF in the recanalization group were much lower than those in no-recanalization group and the no-thrombolysis group,with statistical significant differeuce in them(P ＜ 0.05).The levels of TF,LF,HF and LF/HF in the no-thrombolysis group were same to those in no-recanalization group,and there was no significant difference(P ＞ 0.05).Conclusion The circadian of HRV can be obviously improved by recanalization with AMI after thrombolysis.%目的 探讨急性心肌梗死(AMI)溶栓后心率变异性(HRV)的近日节律变化.方法 将我院AMI患者按照是否溶栓及溶栓再通与否分为再通组、溶栓未通组、未溶栓组各40例,采用动态心电图评估HRV的变化规律.结果 再通组患者TF、LF、HF明显高于未通组及未溶栓组,差异有显著性(P＜0.05).再通组患者LF/HF明显低于未通组及未溶栓组,差异有显著性(P＜0.05).未通组患者TF、LF、HF及LF/HF与未溶栓组比较差异无显著性(P＞0.05).结论 心肌梗死溶栓再通能明显改善HRV的近日节律.
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