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Characteristics of patients with acute inferior wall myocardial infarction spring from different occulded arteries
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF EMERGENCY MEDICINE
- Issue:
- 4
- DOI:
- 10.3760/j.issn:1671-0282.2007.04.006
- Key Word:
- 急性下壁心肌梗死;ST段;梗死相关血管
Abstract： 目的 分析不同梗死相关血管的急性下壁心肌梗死患者的临床特点.方法 根据冠状动脉造影结果将急性下壁心肌梗死患者分2组,A组76例为右冠状动脉(RCA)闭塞,B组24例为左回旋支冠状动脉(LCX)闭塞,并进行比较分析.结果 心电图ST段抬高STⅢ＞STⅡA组显著高于B组(P＜0.05);ST段抬高STⅢ＜STⅡA组显著低于B组(P＜0.01);STV4R抬高＞0.1 mV A组显著高于B组(P＜0.05);合并左前降支冠状动脉(LAD)病变的患者数在胸前导联ST段压低的患者中显著多于无胸前导联ST段压低患者(P＜0.05);左室射血分数(LVEF)A组显著低于B组[(51±14)% vs (57±10)%,P＜0.05];合并右室心肌梗死A组显著高于B组(P＜0.05);心源性休克,心力衰竭,Ⅱ度、Ⅲ度房室传导阻滞,室性心动过速/心室颤动,住院死亡率等两组比较差异无统计学意义(P＞0.05).结论 心电图Ⅲ、Ⅱ及V4R导联ST段变化能预测急性下壁心肌梗死患者梗死相关血管,急性下壁心肌梗死患者伴胸前导联ST段压低提示LAD病变,RCA闭塞所致下壁心肌梗死LVEF低于LCX闭塞者,但临床并发症两组间差异无统计学意义.
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