应用心电监护仪分析急性心肌梗死患者心率变异性的临床意义

Clinical value of analyzing variability of heart rate by electrocardiac monitor in patients with acute myocardial infarction

目的:探讨急性心肌梗死(AMI)患者应用心电监护仪分析心率变异性(HRV)的临床意义。方法:对70例入住CCU的AMI患者使用装载心率变异性分析软件的心电监护仪进行心电监护和心率变异性分析,并与体检正常者比较,观察HRV与心肌梗死患者病情的关系。结果:AMI患者HRV指标(SDNN,SDANN,SDNNindex,rMSSD,PNN50)较体检正常者显著减低(P<0.05,P<0.01),发生心脏事件患者的心率变异性低于未发生心脏事件的患者,大范围心肌梗死患者HRV明显低于小范围心肌梗死者,患者发病初期的HRV明显低于3周后(P<0.05)。结论:对AMI患者进行即时的HRV检测,能及早发现严重心律失常的发生,可预测病情和预后,为诊断、治疗和护理提供临床依据。

Objective ： To explore the clinical value of analyzing heart rate variability （ HRV ） by electrocardic monitor for clinical treatment and nursing care of patients with acute myocardial infarction （ AMI ）. Methods ： Electrocardiac monitor with software was applied to 70 patients with AMI in CCU for analysis of HRV and the relationship between HRV and cardiac state of patients. Result： The HRV （ SDNN, SDANN, SDNN, RMSSD, PNN50） in patients with AMI were significantly lower than those in control group （ P 〈 0. 05, P 〈 0. 01 ）. The patients with cardiac attack had even lower indices of HRV than those without cardiac attack. The patients with multi -wall myocardial infarction had much lower HRV than those with single - wall myocardial infarction, and HRV in the initial stage was much lower than that 3 weeks later. Conclusions ： Possible and timely finding of arrhythmia by monitoring HRV in patients with AMI can predict the prognosis of AMI and provide reliable basis for diagnosis, treatment and nursing care.