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患者女性,20岁,因发作性心悸9年而入院。无晕厥及眩晕史.体检:消瘦.心率66次/分,心律不规则.BP130/85.无充血性心力衰竭体征.S_1、S_2正常。胸骨左缘可闻及Ⅱ级收缩期杂音。心电图示:窦性心律,P-R间期及QRS时限均正常。窦性静止后可见逸搏心律,逸搏呈不完全性左束支传导阻滞型,QRS时限0.11秒。偶见阵发性快速心律失常。快速性心律失常期间,QRS波形态与逸搏QRS波形态相同(图1)。胸部X线拍片及超声心动图正常。
Female patient, 20 years old, admitted to hospital for onset of palpitations for 9 years. No syncope and dizziness history Physical examination: weight loss, heart rate 66 beats / min, irregular heartbeat BP130 / 85 no signs of congestive heart failure, S_1, S_2 normal. Left sternal border can smell and Ⅱ systolic murmur. ECG shows: sinus rhythm, P-R interval and QRS duration were normal. Sinus esophageal sinus rhythm can be seen after Yat stroke was incomplete left bundle branch block type, QRS time limit of 0.11 seconds. Occasionally paroxysmal tachyarrhythmia. During tachyarrhythmia, the QRS pattern is the same as the esophageal QRS pattern (Figure 1). Chest X-ray and echocardiography normal.