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目的探讨冠脉介入术对冠心病心率变异性的影响。方法36例经冠脉造影狭窄≥70患者在介入治疗前、植入后1周、1个月行动态心电图检查分析其心率变异时域及频域指标。结果PCI术后1周HRV与术前相比无明显变化,PCI术后1个月HRV较术前无明显增加(P>0.05)。结论冠脉介入术后短期(1个月)不能恢复心脏自主神经的平衡、改善心脏的心率变异性,可能无助于减少恶性心律失常和心性猝死的发生。
Objective To investigate the effect of coronary intervention on heart rate variability in patients with coronary heart disease. Methods Totally 36 cases of patients with coronary artery stenosis ≥70 were examined by dynamic electrocardiogram (ECG) before interventional treatment and at 1 week and 1 month after implantation. Results One week after PCI, there was no significant difference in HRV between the two groups (P> 0.05). There was no significant difference in HRV one month after PCI between two groups (P> 0.05). Conclusion Short-term (1 month) after coronary intervention can not restore the balance of autonomic nervous system and improve the heart rate variability, which may not help to reduce the incidence of malignant arrhythmia and sudden cardiac death.