van Gelder B M, Bracke F A, el Gamal M I
Department of Cardiology, Catharina Hospital, Eindhoven, The Netherlands.
Pacing Clin Electrophysiol. 1994 Aug;17(8):1437-40. doi: 10.1111/j.1540-8159.1994.tb02464.x.
A 58-year-old man with an implanted minute ventilation rate adaptive DDD pacemaker underwent RF ablation of the AV junction because of symptomatic supraventricular tachyarrhythmias. Immediately after ablation, while the pacemaker was programmed in the DDDR mode, AV sequential pacing at upper rate was observed. After programming the pacing system to the DDD mode and repeated ablation, no abnormalities were observed. It was concluded that AV sequential upper rate pacing was caused by false interpretation of the RF current by the sensor measuring transthoracic impedance as an indicator for minute ventilation.
一名植入了分钟通气率自适应DDD起搏器的58岁男性，因症状性室上性快速性心律失常接受了房室结射频消融术。消融术后即刻，当起搏器设置为DDDR模式时，观察到以较高频率进行房室顺序起搏。将起搏系统设置为DDD模式并再次消融后，未观察到异常。得出的结论是，房室顺序较高频率起搏是由于测量经胸阻抗的传感器将射频电流错误地解读为分钟通气的指标所致。
