Adragão P, Martins D, Machado F P, Bonhorst D, Seabra-Gomes R
Serviço de Cardiologia, Hospital de Santa Cruz.
Rev Port Cardiol. 1993 May;12(5):415-24, 403.
First results of tachyarrhythmia's direct current (DC) and radiofrequency (RF) catheter ablation in Portugal (St. Cruz Hospital, Carnaxide).
Retrospective analysis of the first 20 patients (P) submitted to catheter ablation in our Center: 11 males and 9 females, aging 36 years (SD 14), with drug-refractory symptomatic tachyarrhythmias. DC ablation was used in the first case and RF current in the nineteen subsequent P.
Accessory pathway RF ablation: 92% successful rate (12/13 P); AV nodal modification: fast pathway--1 P (DC ablation), slow pathway--3 P (RF ablation) with one case of late clinical recurrence; two successful His bundle ablation (in paroxysmal atrial flutter/fibrillation) one standard right side and other from left ventricle outflow; one successful RF ablation of a verapamil-sensitive ventricular tachycardia. The mean follow-up was 3.5 months (1 to 7 months for RF and 20 months for DC ablation).
Catheter ablation (mainly RF current) is highly effective in tachyarrhythmia's suppression, with 90% global success in our experience without morbidity.
葡萄牙（卡尔纳克西德圣克鲁斯医院）室上性心动过速直流电（DC）和射频（RF）导管消融的初步结果。
对本中心首批接受导管消融的20例患者进行回顾性分析：男性11例，女性9例，年龄36岁（标准差14），患有药物难治性症状性室上性心动过速。首例患者采用直流电消融，随后的19例患者采用射频电流消融。
旁路射频消融：成功率92%（13例患者中的12例）；房室结改良：快径路——1例（直流电消融），慢径路——3例（射频消融），其中1例出现晚期临床复发；成功进行2例希氏束消融（用于阵发性心房扑动/颤动），1例经标准右侧途径，另1例经左心室流出道途径；成功进行1例对维拉帕米敏感的室性心动过速的射频消融。平均随访时间为3.5个月（射频消融患者为1至7个月，直流电消融患者为20个月）。
导管消融（主要是射频电流）在抑制室上性心动过速方面非常有效，根据我们的经验，总体成功率为90%，且无并发症。
