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目的:探讨特发性左室后间隔室性心动过速临床特征及射频消融的方法学。方法:对16例经心内电生理检查确诊的特发性左后间隔室性心动过速患者的临床体征、心电图和心内电生理检查特点进行分析。在左室后间隔左后分支区域标测到浦肯野纤维电位(P电位)为消融靶点,选用双弯消融导管,温控55～60°(功率20～50W)消融。结果:心动过速时的体表心电图呈右束支阻滞合并左前分支阻滞图形。射频消融成功率100%,无并发症发生。结论:特发性左室后间隔室性心动过速心电图易与室上性心动过速相混淆,射频消融治疗安全、有效。
Objective: To investigate the clinical characteristics and the method of radiofrequency catheter ablation of idiopathic left ventricular posterior compartment tachycardia. Methods: The clinical features, electrocardiogram (ECG) and electrophysiological examination of 16 patients with idiopathic left posterior compartment tachycardia diagnosed by electrophysiological examination were analyzed. Purkinje fiber potential (P-potential) was detected in the left posterior left branch of the left ventricular regional area as the ablation target. The bi-curved ablation catheter was used and the temperature was controlled at 55-60 ° (power 20-50W). Results: Tachycardia electrocardiogram showed right bundle branch block with left anterior branch block. Radiofrequency ablation success rate of 100%, no complications. Conclusion: Idiopathic left ventricular septal tachycardia is easily confused with supraventricular tachycardia, radiofrequency ablation is safe and effective.