房颤射频导管消融术后心功能与左房内径的变化(英文)

Changes of cardiac function and left atrial diameter after radiofrequency catheter ablation in patients with atrial fibrillation

目的:观察射频导管消融术(RFCA)治疗心房纤颤(房颤)的疗效及术后心功能和左房内径的变化。方法:回顾分析本院28例有明显临床症状且药物治疗无效,接受RFC治疗的房颤患者的资料。在三维电解剖标测(EAM)系统指导下对该28例房颤患者行射频消融术。术前,术后3、6月用心脏超声仪评价心功能及左房内径的变化;行动态血压监测评价RFCA的疗效;结果:所有患者的肺静脉隔离率为100%。术中术后均未出现严重并发症。随访6个月28例患者中有27例(96.4%)未复发房颤,与术前比较,心脏超声检查示左房内径[(37.3±4.8)mm比(34.1±4.6)mm]明显降低,左室射血分数[(59.8±8.7)%比(64.2±6.8)%]明显提高,P均<0.05。结论:射频导管消融术治疗房颤安全有效,心功能和左房内径均有明显改善。

Objective： To observe curative effect of radiofrequency catheter ablation （RFCA） and changes of cardiac function and left atrial diameter after operation in patients with atrial fibrillation （AF）. Methods： A total of 28 AF patients with obvious clinical symptoms and without effective for drug therapy received RFCA in our bospital, their data were retrospectively analyzed. They received RFCA under guidance of three dimensional electro-anatomic map- ping （EAM） system. Changes of cardiac function and left atrial diameter were evaluated by echocardiography and curative effect was evaluated by ambulary blood pressure monitoring before, three and six months after operation. Results： Pulmonary vein isolation rate was 100% in all patients. No severe complication occurred during or after op- eration. After six-month follow-up, 27 cases （96.4%） did not recur AF among the 28 patients; Compared with be- fore operation, there were significant decrease in left atrial diameter [ （37.3±4.8） mm vs. （33.6±4.5） mm] and significant increase in left ventricular ejection fraction [ （59.8±8.7） % vs. （64.2±6.8） %] by echocardiography, P〈0.05 both. Conclusion： Radiofrequency catheter ablation is safe and effective in treatment of atrial fibrillation, and there are significant improvements in cardiac function and left atrial diameter.