论文部分内容阅读
心率变异性(HRV)是单独预测急性心肌梗塞(AMI)死亡率的一项非创伤性指标。本研究旨在验证恩卡胺、氟卡胺和莫雷西嗪对AMI后HRV的影响及其预后意义。 方法 作者对心律失常抑制试验预试验(CAPS)的400例AMI资料进行HRV研究。入选病例条件:(1)24小时动态心电图(DCG)磁带资料完整;(2)服药前DCG室早≥10次/小时,服药后减少70％。按照随机对照方法把病例分为四组,并将其DCG磁带信息输入计算机,采用频域法和时域法分析HRV。频域参数为:超低频带(<0.0033Hz)、极低频带(0.0033～0.04Hz)、低频
Heart rate variability (HRV) is a noninvasive index that alone predicts mortality in acute myocardial infarction (AMI). This study was designed to validate the effects of enkaamine, flecainide and methicillin on HRV after AMI and its prognostic significance. METHODS: The authors performed HRV studies on 400 AMI data from a prospective trial of cardiac arrhythmia (CAPS). Selected cases conditions: (1) 24-hour Holter ECG (DCG) tape data integrity; (2) DCG pre-medication room as early as 10 times / hour, after taking a 70% reduction. The cases were divided into four groups according to the randomized control method, and their DCG tape information was input into the computer. HRV was analyzed by frequency domain method and time domain method. Frequency domain parameters are: ultra-low frequency band (<0.0033Hz), very low frequency band (0.0033 ~ 0.04Hz), low frequency