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目前已认识到在心肌梗塞(MI)的急性期和康复期可有植物神经功能的紊乱.最近的研究表明植物神经功能系乱,特别是迷走神经保护性反射的丧失,可伴有因心律失常而死亡的发病率的增加。作者研究的目的是为比较用于测量植物神经功能几项不同预后指标的价值和判定MT发生后早期做功脉压力反射试验的安全性。作者对122名急性MI患者第7与第10天之间记录的危险度分级所做的一些前瞻性试验,包括:压力反射敏感性(BRS)、心率易变性、长期心电图记录、运动应力试验及射血分数。结果,在1年的随访期间有10名发生了心律失常.这些人中BRS明显降低1.73SD(1.49)对
It has now been recognized that there may be autonomic dysfunction in the acute and convalescent stages of myocardial infarction (MI) .Recent studies have shown that autonomic dysfunction, in particular the loss of vagal protective reflex, can be associated with arrhythmia Increase in the incidence of death. The aim of the authors’ study was to compare the safety of several different prognostic indicators used to measure autonomic nerve function and to determine the effect of early mechanical pulse pressure reflex after MT. A prospective study of 122 prospective MI patients on risk stratification between day 7 and day 10 included: baroreflex sensitivity (BRS), heart rate variability, long-term electrocardiographic recordings, exercise stress tests and Ejection fraction. As a result, 10 arrhythmias occurred during a one-year follow-up, and BRS was significantly reduced by 1.73 SD (1.49) in these individuals