Grubb B P, Temesy-Armos P, Hahn H, Elliott L
Department of Medicine, Medical College of Ohio, Toledo 43699.
Pacing Clin Electrophysiol. 1990 Sep;13(9):1092-5. doi: 10.1111/j.1540-8159.1990.tb02163.x.
In order to evaluate the potential use of external cardiac pacing (EXP) in the clinical termination of sustained ventricular tachycardia (VT), we attempted VT terminations in seven patients. All had recurrent sustained monomorphic ventricular tachycardia (mean rate 145 beats/min), which had previously required cardioversion. During subsequent VT episodes, all seven underwent overdrive pacing with EXP at a pulse amplitude of 120 mA, and rates of 200 pulses/min. A total of 18 of 18 episodes of VT were successfully terminated by EXP alone. In one patient, the first attempt at EXP termination of one episode of VT resulted in an acceleration of the tachycardia, which was then terminated by EXP. All patients tolerated EXP well with minimal sedation. We conclude that EXP may be an effective clinical modality for the termination of sustained monomorphic ventricular tachycardia.
为了评估体外心脏起搏（EXP）在持续性室性心动过速（VT）临床终止中的潜在应用，我们对7例患者尝试进行VT终止。所有患者均有复发性持续性单形性室性心动过速（平均心率145次/分钟），此前均需进行心脏复律。在随后的VT发作期间，所有7例患者均接受了EXP超速起搏，脉冲幅度为120 mA，频率为200次/分钟。18次VT发作中有18次仅通过EXP成功终止。在1例患者中，首次尝试用EXP终止1次VT发作导致心动过速加速，随后通过EXP终止。所有患者在极少镇静的情况下对EXP耐受性良好。我们得出结论，EXP可能是终止持续性单形性室性心动过速的一种有效临床方法。
