碎裂QRS波对急性非ST段抬高型心肌梗死患者预后的影响
Journal of Chinese Practical Diagnosis and Therapy(2017)
Abstract
目的 探讨急性非ST段抬高型心肌梗死(non-ST elevated acute myocardial infarction,NSTEMI)患者碎裂QRS波对临床预后的影响.方法 经冠状动脉造影确诊NSTEMI患者312例,根据住院期间第一份心电图是否存在碎裂QRS波分为碎裂QRS波组173例和无碎裂 QRS波组139例,比较2组一般资料,随访6个月并记录2组主要不良心脏事件(major adverse cardiac events,MACE)发生情况.结果 碎裂QRS波组3支以上冠状动脉狭窄≥50%者比率(51.45%)、既往心肌梗死比率(52.51%)高于无碎裂QRS波组(36.69%、30.22%),左室射血分数[(54.00±5.60)%]低于无碎裂QRS波组[(61.00±5.80)%],高敏C反应蛋白水平[8.1(3.2,19.2)mg/L]高于无碎裂QRS波组[6.1(3.2,12.6)mg/L] (P<0.05);碎裂QRS波组总MACE发生率(33.53%),再次经皮冠状动脉介入治疗(8.67%)、复发性心绞痛比率(18.45%)均高于对照组(15.83%、2.88%、7.19%)(P<0.05).结论 碎裂QRS波是NSTEMI患者预后不良的重要心电图特征.
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Key words
Non-ST elevated acute myocardial infarction,electrocardiogram,fragmented QRS complex,major adverse cardiac events
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