摘要
目的分析急性心肌梗死超急性期心电图有或无J波的临床意义及预后改变。方法对河南省濮阳市中医院心内科及急诊科近5年收住院的90例急洼心肌梗死患者的临床资料进行回顾性分析。根据心电图将其分为J波纽25例（27．8％）和无J波纽65例（72．2％），比较两组间住院期间室性心律失常发生率、猝死率、预后左室射血分数。结果J波组／无J波组室性心律失常发生率、猝死率、预后左室射血分数分别为17例（68．0％）／27例（41．5％）；2例（8．0％）／2例（3．1％）；（49±8）％／（52±8）％；室性心律失常发生率J波组明显高于无J波组（P〈0．05）；猝死发生率J波组明显高于无J波组（P〈0．05）；预后左室射血分数值J波组与无J波组相比差异无统计学意义（P〉0．05）。结论急性心肌梗死超急性期心电图可出现J波，也可无J波，无J波者更常见。出现J波者提示心电活动更具有不稳定性，易发生室性心律失常，并可导致较高的猝死发生率，但对预后心功能并未造成明显影响。
Objective To analyze the clinical significance and prognosis of the electrocardiogram with or without J wave in patients with acute myocardial infarction in super - acute phase. Methods The clinical data of 90 patients with acute myocardial infarction in our hospital in recent five years were retro- spectively analyzed. According to the electrocardiogram, the patients were divided into J wave group of 25 patients （27.8%）, and no J wave group of 65 patients （72.2%）. The incidence rate of ventrieular arrhythmias, the sudden death rate and left ventricular ejection fraction （LVEF） between the two groups were compared. Results In J wave group, 17 cases （68.0%） occured ventricular arrhythmia, no J wave group has 27 cases（41.5% ）, the ventricular arrhythmia incidence was higher in J wave group （P 〈 0.05）. J wave group had 2 cases（8.0%） of sudden death, no J wave group had 2 cases （3.1% ）, the sudden death rate of J wave group was significantly higher than that of no J wave group （P 〈 0.05）. The LVEF was（ 48.9 ＋8.1）% in J wave group and （51.7 ＋7.8）% in no J wave group, there was no significant difference between J wave group and no J wave group in prognosis of LVEF （ P 〉 0.05）. Conclusions The electrocardiogram of acute myocardial infarction in the super-acute phase can appear J wave, can also be no J wave, but no J wave is more common. J wave indicates ECG activities has more instability, and more prone to ventricular arrhythmia, and leads to a higher incidence of sudden cardiac death, but has no significant influence on prognosis of cardiac function.
出处
《中国实用医刊》
2012年第18期50-52,共3页
Chinese Journal of Practical Medicine
关键词
急性心肌梗死
超急性期
心电图
缺血性J波
Acute myocardial infarction
Super - acute phase
Electrocardiogram
Ischemic J wave
