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QRS波增宽型心动过速中,鉴别室上性心动过速(SVT)和室性心动过速(VT)甚为困难。然而诊断错误导致延误治疗,甚至危及生命。完全性左束支传导阻滞(CLBBB)型心动过速的鉴别诊断的资料更少,本文对鉴别SVT和VT的4项心电图标准进行评价。作者回顾分析118例CLBBB型心动过速患者的12导联心电图,各例V_1导联均以S波为主且QRS波时限>120ms。5例颈动脉窦按压后体表心电图表明为心房颤动(1例)或窦性心动过速(4例),其余
In QRS wave-widened tachycardia, it is difficult to identify supraventricular tachycardia (SVT) and ventricular tachycardia (VT). However, diagnostic errors lead to delays in treatment and even life-threatening. There is less data available for the differential diagnosis of complete left bundle branch block (CLBBB) tachycardia, and four ECG criteria for the identification of SVT and VT are evaluated in this article. The authors retrospectively analyzed 12-lead electrocardiograms in 118 patients with CLBBB tachycardia. Each V_1 lead was predominantly S-wave with a QRS wave duration of> 120 ms. 5 cases of carotid sinus pressure on the body surface ECG showed atrial fibrillation (1 case) or sinus tachycardia (4 cases), the rest