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目的探讨射频消融术对频发单形室性早搏的疗效。方法对频发性室性早搏患者19例采取激动标测及起搏标测相结合,以起搏时与室性早搏QRS波形态完全相同点为消融靶点行射频消融治疗。结果18例即刻成功,1例无效,无并发症。术后2周24h动态心电图检测,随诊6个月至2年,17例无复发或早搏无增多,1例出现另一形态室性早搏。结论射频消融治疗频发单形室性流出道室性早搏安全、有效。
Objective To investigate the curative effect of radiofrequency catheter ablation on frequent mononuclear ventricular premature beats. Methods Nineteen patients with frequent premature ventricular contractions were selected by the combination of excitability mapping and pacing detection. The ablation procedure was the same as that of QRS premature ventricular contractions. Results 18 cases immediately succeeded, 1 case was invalid, no complications. After 2 weeks of 24h dynamic electrocardiogram test, followed up for 6 months to 2 years, 17 cases no recurrence or premature beats no increase, 1 case of another form of premature ventricular contractions. Conclusions Radiofrequency ablation is safe and effective in treatment of premature ventricular premature beats in simplex outflow tract.