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心率变异性(HRV)分析是通过测量连续R-R间期变化的变异数来反映心率变化的方法。HRV降低是预测心源性猝死,特别是心肌梗塞后猝死危险性的独立指标。本文分析21例急性心肌梗塞(AMI)患者的HRV,并探讨其临床意义。1 资料与方法1.1 病例选择 21例AMI均经病史、心电图和血清酶学检查确诊,其中男18例,女3例;年龄45～75岁,平均57.5±9.06岁。梗塞位于前间壁11例,广泛前壁2例,下壁5例,下壁+正后壁2例,下壁+右室1例。对照组20例,为健康查体者,男14例、女
Heart rate variability (HRV) analysis is a measure of changes in heart rate by measuring the number of variations in successive R-R intervals. HRV reduction is an independent predictor of sudden cardiac death, particularly risk of sudden death after myocardial infarction. This article analyzes 21 cases of acute myocardial infarction (AMI) patients with HRV, and explore its clinical significance. 1 Materials and Methods 1.1 Case Selection 21 cases of AMI were diagnosed by history, ECG and serum enzymatic examination, 18 males and 3 females; aged 45 to 75 years, mean 57.5 ± 9.06 years. The infarction was located in the anterior wall in 11 cases, with extensive anterior wall in 2 cases, inferior wall in 5 cases, inferior wall + posterior wall in 2 cases and inferior wall + right ventricle in 1 case. Control group of 20 cases, for physical examination, 14 males and females