The value of NT-pro-BNP and Left atrial dimension for assess the incidence of recurrence Atrial fibrillation(AF) after circumferential pulmonary vein ablation(CPVA)
Objective To explore the relationship of the levels of NT-pro-BNP and left atrial dimension and the incidence of recurrence AF after circumferential pulmonary vein ablation(CPVA). Methods Plasma NT-pro-BNP level and left atrial dimension was measured before CPVA in 70 AF patients without heart failure(EF>55%). Atrial thrombus was detected by transesophageal echocardiography in 15patients and CPVA was not performed in these patients.CPVA was successful in the remain 55 patients and follow up for 3 months. All patients were askd to underwen3 months is failure.39 patients were in successful group and 16 patients were in failure group. Result NT-pro-BNP exceeded the normal range in 69% patients. NT-pro-BNP level was significantly higher in failure group than in successful group. Left atrial(LA) dimension was larger in failure group than in successful group. Conclusion NT-pro-BNP and LA dimension are predictive of successful CPVA for AF patients.