【摘要】 目的探讨心电图碎裂QRS波(f QRS波)在诊断急性心肌梗死(AMI)的应用价值。方法方便选取该院2010年1月—2015年6月经冠脉造影确诊的急性心肌梗死患者90例与非AMI患者进行对比分析,又根据患者是否存在f QRS或病理性Q波分组,分析f QRS波的分布特性及价值性。结果 1下壁出现f QRS的机率(12.22%)较前壁、侧壁(5.6%)、3.3%)高。2病理性Q波(25.56%)敏感性略高于f QRS波者(21.11%),但病理性Q波者(88.89%和69.70%)均低于f QRS波者特异性(95.56%)及阳性预测值(82.60%);当两者结合应用时,敏感性和特异性、阳性预测值、阴性性预测值(41.11%、96.67%、92.50%、62.14%)均较高。3在NSTEMI患者中f QRS(38.10%)发生率明显高于病理Q波(14.29%),f QRS与f QRS合并病理性Q波对比差异有统计学意义(P<0.05)。结论f QRS波对NSTEMI有一定的诊断价值,可作为心电图诊断急性心肌梗死的一个新指标。更多还原

【Abstract】 Objective To explore the application value of Electrocardiogram fragmentation QRS wave(f QRS wave) in the diagnosis of acute myocardial infarction(AMI).Methods Convenient selection the 90 patients with acute myocardial infarction diagnosed by coronary angiography from January 2010 to June 2015 in our hospital,Compared with non AMI patients,Based on the presence of f QRS or pathological Q wave packet,the distribution characteristics and value of f QRS wave were analyzed.Results 1the probability of f QRS(12.22%) was higher than the anterior wall,lateral wall(5.6%),and(3.3%).2the sensitivity of simple pathological Q wave(25.56%) was slightly higher than that of simple f QRS wave(21.11%),but the pathological Q(69.70% and 88.89%) were lower than that of the f QRS(95.56%) and the positive predictive value(82.60%);When the combination of the two,the sensitivity and specificity,positive predictive value,negative predictive value(41.11%,96.67%,92.50%,62.14%) were higher.3In NSTEMI patients,the incidence of f QRS(38.10%) was significantly higher than that of pathological Q wave(14.29%),FQRS and f QRS combined with pathological Q wave was statistically significant(P <0.05).Conclusion FQRS wave has a certain diagnostic value for NSTEMI,which can be used as a new indicator for the diagnosis of acute myocardial infarction.更多还原