目的分析右房容积指数(RAVI)在经导管射频消融术联合心腔内电复律治疗持续性心房颤动(AF)及其远期复发中的应用价值。方法选取在我院行多步骤递进式消融(包括环肺静脉隔离+线性隔离+碎裂电位消融)后,AF仍未终止,术中再行心腔内电复律治疗的持续性AF患者66例。将术前7d内和术后12~48个月的超声心动图及临床资料进行对比研究,尤其对RAVI进行重点分析。结果所有患者术后均转复为窦性心律。根据是否远期复发,将患者分为复发组(23例)和未复发组(43例)。复发组的RAV、RAVI和AF病程均显著高于未复发组(P<0.05),两组间差异有统计学意义。LVMI、LAV、LAVI在两组间差异无统计学意义(P>0.05)。两组患者的临床资料比较差异均无统计学意义(P>0.05)。结论经导管射频消融术联合心腔内电复律可将持续性AF成功转为窦性心律。RAVI可反映持续性AF术后RA结构的改变。 Objective To analyze the value of RAVI in the treatment of persistent atrial fibrillation (AF) and its long-term recurrence after radiofrequency catheter ablation and intracardiac cardioversion. METHODS: After continuous multi-step ablation (including circumferential pulmonary vein isolation + linear isolation + fragmentation potential ablation) in our hospital, AF was not terminated yet. Continuous AF patients undergoing intracardiac electrical cardioversion example. Echocardiography and clinical data within 7 days and 12 to 48 months before surgery were compared, especially for RAVI. Results All patients were converted to sinus rhythm after surgery. According to whether the long-term recurrence, the patients were divided into recurrence group (23 cases) and no recurrence group (43 cases). The course of RAV, RAVI and AF in the recurrent group was significantly higher than that in the non-recurrent group (P <0.05). The difference between the two groups was statistically significant. There was no significant difference in LVMI, LAV and LAVI between the two groups (P> 0.05). There was no significant difference in clinical data between the two groups (P> 0.05). Conclusions Transcatheter radiofrequency ablation combined with intracardiac cardioversion can turn continuous AF into sinus rhythm. RAVI can reflect the change of RA structure after continuous AF.