Gascho J A, Schieken R
J Electrocardiol. 1979 Jul;12(3):331-5. doi: 10.1016/s0022-0736(79)80069-2.
A three-year-old girl with congenital complete heart block presented with repeated bouts of ventricular tachycardia and ventricular fibrillation. The ECG was remarkable for both complete heart block and a long Q-T interval, when corrected for rate. The Q-T interval was longer than the Q-T interval of children with congenital complete heart block and of children without heart disease. Overdrive ventricular pacing was necessary to control the arrhythmias. A prolonged Q-T interval in patients with complete heart block, even in the presence of a normal QRS duration, may predispose the patient to sudden death. Permanent pacing can suppress these arrhythmias by overdriving.
一名患有先天性完全性心脏传导阻滞的三岁女孩出现反复的室性心动过速和心室颤动。心电图显示存在完全性心脏传导阻滞和校正心率后的长Q-T间期，这一点很显著。该Q-T间期比先天性完全性心脏传导阻滞患儿以及无心脏病患儿的Q-T间期都要长。需要进行超速心室起搏来控制心律失常。完全性心脏传导阻滞患者即使QRS时限正常，但Q-T间期延长也可能使患者易发生猝死。永久性起搏可通过超速抑制来抑制这些心律失常。
