特发性室性心动过速射频消融治疗靶点标测方法的对比研究

目的：探讨特发性室性心动过速（IVT）有效靶点的标测方法及对射频消融成功的影响。方法：20例特发室速的病人，其中右室流出道特发室速（RVOT）12例，左室特发室速（ILVT）8例，对132例室容易诱发或同源室早较多的患者采用激动标测，而对7例室速不易诱发且室早较少者采用起搏或起搏＋激动标测量。结果：20例室速病人首次消融成功19例（95％），复发2例。13例单纯激动标测消融均获成功，7例搏标测放电效果不佳，结合激动标测6例成功。结论：不论RVOT或ILVT，激动标测具有更高的准确性，但对室速不易诱发的病人，起搏标测可作为辅助的标测方法。

Comparative Study of Target Mapping Method for Radiofrequency Catheter Ablation in Idiopathic Ventricular Tachycardia

To investigate the effect of mapping methods of target for idiopathic ventricular tachycardia (IVT). Methods: Twenty consecutive patients with IVT which included 12 RVOT and 8 ILVT patients were studied. The activation mapping was used in 13 patients with easily induced ventricular tachycardia or frequent ventricular premature. The others were studied by paced mapping or pace plus activation mapping. Results: Ablation was successful in 19 of 20 patients (95%), and was recurrent in 2 patients with RVOT. Conclusion: The activation mapping has higher accuracy. Pace mapping can be an adjunctive method.