【摘要】 目的探讨心电图对应导联ST段压低(ST-segmentdepression,STD)在急性心肌梗死的临床价值。方法选取某院2002年3月～2011年2月诊治的500例初发急性心肌梗死患者的临床资料及心电图检查结果进行回顾性分析,心电图对应导联STD≥0.1mV共238例,设为观察组,对应导联ST段无压低或STD﹤0.1mV共262例,设为对照组。对比观察两组患者冠状动脉狭窄率和多支病变率以及严重心律失常、心力衰竭、心源性休克的发生率和急性心梗死亡率。结果观察组冠状动脉狭窄率和多支病变率分别为66.39%(158/238)和25.63%(61/238),明显高于对照组44.27%(116/262)和8.78%(23/262),差异有统计学意义(P﹤0.05)。观察组严重心律失常和心力衰竭发生率分别为17.65%、16.81%,明显高于对照组4.58%、4.20%,差异有统计学意义(P﹤0.05)。两组心源性休克发生率和死亡率比较,差异无统计学意义(P﹥0.05)。结论急性心肌梗死伴心电图对应导联STD预示病情严重,临床应及早采取干预治疗措施,防止患者病情恶化。更多还原

【Abstract】 OBJECTIVE To explore the clinical value of corresponding ST-segment depression(STD)in acute myocardial infarction.METHODS Five hundred patients with acute myocardial infarction admitted to our hospital from Mar.2002 to Feb.2011 were selected and divided into two groups based on their ECG.238 cases with STD≥0.1mV in ECG was served as observation group and 262 cases without STD≥0.1mV in ECG was served as control group.The coronary artery stenosis rate,multi-vessel lesion rate,serious complications including heart failure,severe arrhythmia and cardiogenic shock incidence and acute myocardial infarction mortality were observed and compared between the two groups.RESULTS The coronary artery stenosis rate and multi-vessel lesion rate of the observaton group were significantly higher than those of the control group(66.39% vs 44.27%,25.63% vs 8.78%,P﹤0.05,respectively).The incidence of serious arrhythmias and heart failure of the observaton group were significantly higher than those of the control group(17.86% vs 4.17%,16.07% vs 4.17%,P﹤0.05,respectively).There was no significant difference of the incidence of cardiogenic shock and mortality between the two groups.CONCLUSION ECG leads corresponding STD is the important signal for acute myocardial infarction combined with serious complications.Clinical intervention measures should be taken to reduce mortality as early as possible.更多还原