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射频消融治疗心动过速２００例。前期（１～５０例）心脏并发症１７例（３４．０％），外周血管并发症６例（１２．０％），心室颤动２例（１．０％）；后期（５１～２００例）心脏及外周血管的并发症则分别为９例（６．０％）、３例（２．０％），无心室颤动发生。前、后期并发症的发生率存在显著差异（４６．０％ＶＳ８．０％，Ｐ＜０．０１）。前期并发症的发生较后期高主要与经验不多和技术操作不熟练有关。ＡＨ间期延长可能预示严重的阻滞的产生，应予警惕。
Radiofrequency ablation in the treatment of tachycardia in 200 cases. Seventeen patients (34.0%) had cardiac complications in the early stage (1-50 cases), six cases (12.0%) had peripheral vascular complications and two patients (1.0%) had ventricular fibrillation. The latter period (51-200 cases) Complications of heart and peripheral blood vessels were 9 (6.0%) and 3 (2.0%), respectively, with no ventricular fibrillation. There was a significant difference in the incidence of complications between the two groups (46.0% vs. 8.0%, P <0.01). Pre-symptomatic complications occurred later than the main experience and inexperienced inexperienced technology operation. AH prolongation may indicate a serious block of the production, should be vigilant.