Outcomes of modifiedmaze procedure using bipolar radiofrequency ablation for surgical treatment of permanent atrial fibrillation
CAO Wei
SHI Kai-hu
XU Sheng-song
SHA Ji-ming
Abstract：Objective To summarize the clinical outcomes of modified maze procedure using bipolar radiofrequency ablation accompanied with valve replacement for the surgical treatment of permanent atrial fibrillation (AF) and heart valve diseases.Methods A total of 52 patients with permanent AF and heart valves diseases were undergone surgical treatment from April 2010 to April 2013 in the second affiliated hospital of Anhui medical university.Rheumatic heart disease was 47 cases and 5 cases of them had suffered degenerative disease of the heart valves.The medtronic cardioblate 68000 flush bipolar radiofrequency ablation system applied to all patients.Ring RF ablation procedures was consisted of bilateral pulmonary vein isolation,left atrial appendage resection,left and right atrial ablation (modified Cox-maze Ⅲ surgical path) and Marshall ligament resection.All patients were taken amiodarone therapy after surgery.Results The surgery of 52 patients was successfully completed.The mean atrial fibrillation duration was (14 ± 6) min.All patients taked amiodarone hydrochloride after surgery.The day after surgery,42 cases atrial fibrillation rhythm turned into sinus rhythm;paroxysmal atrial fibrillation occurred in 5 cases after 1 to 7 days after surgery and turned into sinus rhythm after intravenous amiodarone.In all patients,2 cases had suffered Ⅲ ° atrioventricular block after surgery and permanent pacemakers were implanted.There were no cardiac perforation and hospital mortality.The average length of stay was (12.1 ±2.3) d.The mean follow-up was (8 ±4) months.84.6％ (44/52) of patients remained in sinus rhythm,11.5％ (6/52) had AF rhythm and 3.8％ (2/52) had paced rhythm.Conclusion Modified maze procedure using bipolar radiofrequency ablation is a simple,safe and effective surgical procedure for the treatment of permanent AF.
Keywords：Atrial fibrillationHeart valve replacementBipolar radiofrequency ablation
Publication Date：2013-10-30
Online Publishing Date：2026-09-14(First online date of this platform, not the publication date of the document)
Pages：3( 1370-1372 )