Tan C, Pillai S, Manning P G
Accident and Emergency Department, Changi General Hospital, 2 Simei Street 3, Singapore 529889.
Singapore Med J. 2006 Aug;47(8):730-4; quiz 735.
A 25-year-old man was brought to the emergency room after being found unconscious. Electrocardiography (ECG) showed changes classical of tricyclic antidepressant (TCA) poisoning. These included sinus tachycardia, QTc prolongation, QRS complex widening, right axis deviation and positive R waves in lead aVR. This unique ECG highlights the importance of lead aVR, which often tends to be ignored. Treatment is started based on ECG findings.
一名25岁男子在被发现昏迷后被送往急诊室。心电图（ECG）显示出三环类抗抑郁药（TCA）中毒的典型变化。这些变化包括窦性心动过速、QTc延长、QRS波群增宽、电轴右偏以及aVR导联R波正向。这种独特的心电图突出了aVR导联的重要性，而该导联常常容易被忽视。治疗根据心电图结果开始。
