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根据急性广泛前壁心肌梗死12导联心电图特点发现冠状动脉开口变异 被引量:7

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摘要 1病例简介〈br〉 患者,男,59岁,主因“突发胸痛40分钟”入院。患者于入院40分钟前无明显诱因出现心前区闷痛,伴大汗、头晕,症状持续不缓解。既往有冠心病家族史,无高血压病、糖尿病、高脂血症病史。查体:血压106/64mmHg,脉搏70次/分钟,神清,双肺呼吸音清,未闻及干湿性啰音。心界不大,心率70次/分钟,心音低钝、律齐,各瓣膜听诊区未闻及杂音。肝脾未触及,双下肢无水肿。入院心电图(图1)示窦性心律,心率65次/分钟,右束支传导阻滞, STⅡ、Ⅲ、aVF、V3~ V5压低0.2~0.6mV, ST aVR 抬高0.3mV,ST aVL抬高0.1mV,ST V1~V2抬高0.6~0.9mV,ST V3~V6T波高尖。入院后10余分钟患者突发意识丧失,心电监测提示室颤,予电除颤后恢复窦性心律,患者意识恢复,随即推入导管室,急诊行冠脉造影(图2)示右冠状动脉( RCA)优势型,LM远端100%闭塞, RCA 近段80%局限狭窄, RCA 中段50%~70%弥散性狭窄, RCA 远段50%节段狭窄,前向血流 TIMI-3级;RCA 向左冠状动脉发出侧支,侧支血流1级。考虑梗死相关血管为LM,在主动脉内球囊反搏( IABP)支持下于LM远端至LAD近段病变处植入药物洗脱支架1枚,后复查造影示LM-LAD恢复血流达TIMI-3级,但未发现回旋支( LCX)。术后收入CCU病房,予以抗栓、调脂等治疗,患者未再发作胸闷、胸痛,心功能相对平稳,监测肝肾功能无异常,术后第3日停用 IABP 后血压可维持于90~100/60~65 mmHg左右,复查心电图(图3)示窦性心律,右束支传导阻滞, V1~V4、aVL导联可见病理性Q波,V1~V6、Ⅰ、aVL 导联 T 波倒置。患者病情逐渐稳定,于术后第18日出院。
出处 《中国临床医生杂志》 2015年第5期88-90,共3页 Chinese Journal For Clinicians
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