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特发性室性心动过速(IRVT)伴Ⅱ°室房传导阻滞者临床少见,误诊为快-慢型房室结内折返性心动过速(AVNRT)伴上方共同通道Ⅱ°阻滞。现报告2例。例1 患者男性,29岁,心悸、胸闷发作1周,既往有类似反复发作史13年。发作间期心电图正常。BP90/60mmHg(12.0/8.0kPa)。心律齐,心率150次/min。心脏无器质性杂音。超声心动图正常。发作时心电图(图1)示 QRS0.12s,呈完全性右束支阻滞(CRBBB)型伴电轴左偏(-73°)。食管导联非连续记录示:E_A 每2个QRS 波后有一 P 波。结合体表心电图上 P_(Ⅱ、Ⅲ、aVF)~-
Idiopathic ventricular tachycardia (IRVT) with Ⅱ ° room conduction block were rare, misdiagnosed as fast - slow atrioventricular nodal reentrant tachycardia (AVNRT) with upper common channel Ⅱ ° block. Now report 2 cases. Example 1 patients male, 29 years old, palpitations, chest tightness attack for 1 week, previous history of similar recurrent episodes of 13 years. Interictal electrocardiogram normal. BP90 / 60 mmHg (12.0 / 8.0 kPa). Qi heart rate, heart rate 150 beats / min. No organic noise in the heart. Echocardiography normal. The onset of electrocardiogram (Figure 1) showed QRS0.12s, was complete left bundle branch block (CRBBB) type axis with left (-73 °). Non-continuous recording of esophageal leads shows that E_A has a P wave after every 2 QRS waves. Combined with body surface electrocardiogram P_ (Ⅱ, Ⅲ, aVF) ~ -