Radiofrequency catheter ablation of supraventricular tachycardia in patients with structrual heart diseases

Objective To evaluate the efficacy of radiofrequency catheter ablation (RFCA) of paroxysmal supraventicular tachy-cardia(PSVT) in patients with structural heart diseases. Methods RFCA were performed in 11 patients with organic heart disease and atrioventricular or atrioventricular nodal reentrant tachycardia. 80 Patients without structural heart diseases served as control subjects. Results The first RFCA success rate was 90. 9% (10/11) without significant complications. Procedure and rada-tion exposure time were longer than that in control group. Conclusion PSVT in patients with structural heart diseases can be successfully treated by RFCA with a careful,anatomically precise approach. It is important to manifest the cardiovascular anatomy differentiation and cardiac function prior to ablatio for increasing the successful rate and decreasing complications.