The Changes Of Electrophysiology And Ventricular-Remodeling After Transcatheter Device Closure Of Congenital Heart Disease

Objectives To investigate the changes of electrophysiology and ventricular form, function after transcatheter device closure of ASD, VSD and PDA.And evaluate the effect on the electrophysiology and ventricular-remodeling after procedure in patients with congenital heart disease.Methods 111 patients underwent procedure successfuly, 47 was ASD,44 was VSD and 20 was PDA. All patients were performed 12 lead- synchronous surface electrocardiogram, Ambulatory Holter monitoring and TTE study, analysised the parameters of electrocardic and the indexs of ventricular form and function pre- and after- procedure.Results 1 The changes of electrophysiology after procedure. (1) In patients with ASD, compared with the pre-procedure, 3 days,1,3 and 6 months later, the incidence rate of RBBB decreased significantly(P﹤0.05); But the incidence rate of RBBB in all patients with ASD had no significance change between the 3 days, 1,3 and 6 months(P﹥0.05). Compared to pre-procedure,the electrical axis toward the right incidence rate decreased significantly in 1,3 and 6 months after the procedure,P<0.01.(2) Of the patients with VSD, compared with the pre-procedure, 3 days later, the incidence rate of RBBB/LBBB increased significantly(P﹤0.05). But 3 and 6 months later, the incidence rate of RBBB/LBBB decreased significantly(P﹤0.05).(3) Of the patients with PDA, compared with the pre-procedure,the incidence rate of LVH decreased significantly in the 3 and 6 months after the procedure(P﹤0.01); The electrical axis toward the left incidence rate decreased significantly in the 3 and 6 months after the procedure, P<0.01. 2 The changes of the parameters of the...