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阵发性室性心动过速(VT)对血液动力学有明显影响,持续性VT常须尽快终止。鉴于VT的发生机理多为折返性,作心内电生理检查时,当诱发出VT后常可用程控刺激“亚速”或“超速”抑制来终止,笔者试将调搏法用于1例安装了永久起搏器而伴发持续性VT的病人的转律,收到显著疗效。患者男性,65岁,1992年5月因陈旧性前壁心肌梗塞并发持续性VT入院。使用各种药物未能终止VT,而采用直流电同步电复律(100W·s,150W·s共二次),VT终止,转为交界性逸搏心律,心室率35～40bpm,持续近一月未有改善,考虑存在病窦综合征,而安装了永久起搏器(Medtronic 5985),并合用抗心律失常药物防治VT,效果不佳。VT发作时每次持续数小时至数日,室率在130～170bpm之
Paroxysmal ventricular tachycardia (VT) has a significant effect on hemodynamics, persistent VT often must be terminated as soon as possible. In view of the mechanism of VT are mostly reentry, for intracardiac electrophysiological examination, VT can often be triggered when programmed to stimulate “speed” or “speeding” inhibition to terminate, I try to pacing method used in one case of installation A permanent pacemaker with sustained VT in patients with the law of rotation, received a significant effect. The patient, male, 65 years old, was admitted to the hospital with persistent anterior myocardial infarction and persistent VT in May 1992. The use of various drugs failed to terminate the VT, and the use of DC synchronous cardioversion (100W · s, 150W · s total of two), VT termination, converted to borderline escape rhythm, ventricular rate 35 ~ 40bpm, lasted nearly January Unimproved, consider the existence of sick sinus syndrome, and the installation of a permanent pacemaker (Medtronic 5985), combined with anti-arrhythmic drugs VT, ineffective. VT attack each time for several hours to several days, room rate at 130 ~ 170bpm