Baranchuk Adrian, Divakaramenon Syamkumar, Ribas Sebastian, Morillo Carlos A
Arrhythmia Service, Kingston General Hospital, Queen's, Canada.
Arq Bras Cardiol. 2009 Mar;92(3):e13-5. doi: 10.1590/s0066-782x2009000300015.
A 56-year-old man came to the Pacemaker Clinic for his regular pacemaker control. He had experienced a syncopal episode in the previous week. He had a previous diagnosis of non-obstructive hypertrophic cardiomyopathy. Due to a previous syncope and documented 2:1 infrahisian block, a dual-chamber permanent pacemaker had been implanted a few years before. The device was interrogated, showing several ventricular high rate episodes. A careful analysis of the stored intracardiac electrograms showed ventricular tachycardia (VT) with 2:1 ventriculoatrial conduction. The following presentation discusses the alternative diagnosis and clinical management in an unusual diagnosis of VT in the presence of non-obstructive hypertrophic cardiomyopathy.
一名56岁男性前往起搏器诊所进行常规起搏器检查。他在前一周经历了一次晕厥发作。他之前被诊断为非梗阻性肥厚型心肌病。由于之前有过晕厥且记录到2:1希氏束下阻滞，几年前植入了双腔永久起搏器。对该装置进行了问询，发现有几次心室率过快发作。对存储的心内电图进行仔细分析显示为室性心动过速（VT）伴2:1室房传导。以下论述讨论了在非梗阻性肥厚型心肌病患者出现不寻常的室性心动过速诊断时的鉴别诊断和临床处理。
