导管射频右房线性消融治疗阵发性心房颤动

报道导管射频右房双线性消融临床试验性治疗阵发性心房颤动 (简称房颤 )的结果。10例特发性房颤的患者接受治疗 ,用 8mm大头电极温控导管完成下腔静脉口至三尖瓣口的线性消融 ,用连续 4个大头电极的温控导管完成从下腔静脉口经界嵴至上腔静脉口的线性消融。术中及术后无 1例发生并发症 ,术后恢复过程无异于一般的导管射频消融术。术后随访 1～ 10月 ,其中 6例无房颤发作、2例房颤发作次数明显减少 ;此 8例中 ,6例在术中诱发房颤时房颤是由 b型心房扑动转变而来。另 2例房颤发作次数无明显变化。初步结果表明 :导管射频右房双线性消融对 b型心房扑动启动的阵发性房颤有较好的治疗效果 ,但仍需积累更多病例和做更长时间的观察。

Radiofrequency Catheter Linear Ablation of the Right Atrium to Treat Paroxysmal Atrial Fibrillation

The results of clinical treatment of paroxysmal atrial fibrillation (AF) by radiofrequency catheter linear ablation of the right atrium were reported.There were 10 patients with idiopathic AF.The linear ablation from the inferior vena cava to the tricuspid valve annulus was completed by temperature control catheter with a 8 mm tip electrode and the linear ablation from the inferior vena cava to the superior vena cava via the terminal crest was completed by a temperature control catheter with 4 ablation electrodes.There was no complication during and after the operation.Recovery from it was the same as general radiofrequency catheter ablation.During the follow up of 1～10 months,there was no attack of AF in 6 patients,less attacks in 2 patients and same attacks in 2 patients.In 6 of 8 patients who had good results,the AF induced was from atrial flutter of type Ⅱb during operation.It shows radiofrequency catheter linear ablation of the right atrium has a good effect on the AF from atrial flutter of type Ⅱb,but it is limited and needs more patients and longer follow up.