【摘要】 目的分析非ST段抬高型心肌梗死(NSTE-AMI)患者心电图的QRS波时限,通过与冠状动脉造影(CAG)对比,探讨其判断左主干或三支病变的价值。方法测量106例急性非ST段抬高型心肌梗死患者的体表心电图QRS波时限,结合冠状动脉造影结果,分析其诊断左主干或三支病变的敏感性、特异性及相关性。结果QRS波时限与左主干或三支病变具有相关性(OR9.04,p<0.01),QRS波时限≥90ms预测左主干或三支病变的敏感性为88%,特异性为88%。结论QRS波时限是急性非ST段抬高型心肌梗死患者左主干或三支病变非常灵敏的预测因子。更多还原

【Abstract】 Objective To investigate the effect of QRS duration for Left Main or 3-Vessal Disease(LM/3VD) in patients with Non-ST Segment Elevation Acute myocardiol infarction(NSTE-AMI) by comparing with coronary angiography(CAG).Methods On admission,the clinical factors of 106 patients,who underwent coronary angiography were evaluated.The widest QRS duration were measured on an admission 12-lead electrocardiogram,by which to identify LM/3VD with sensitivity,specificity and dependability.Results QRS duration was associated with LM/3VD,QRS duration≥90ms identified LM/3VD with sensitivity of 88%,specificity of 88%;Conclusion QRS duration was independent predictor of LM/3VD in patients with NSTE-AMI.更多还原