ĐÁNH GIÁ TÍNH AN TOÀN VÀ HIỆU QUẢ CỦA TRIỆT PHÁ QUA ỐNG THÔNG RỐI LOẠN NHỊP TIM BẰNG NĂNG LƯỢNG TẦN SỐ RADIO TẠI VIỆN TIM THÀNH PHỐ HỒ CHÍ MINH

Abstract

Background: The treatment of cardiac arrhythmias has been revolutionized by the ability to definitively treat many patients with radiofrequency catheter ablation, rather than requiring lifelong medication. Catheter ablation has evolved rapidly over the years and has now proven to be a first-line therapy in the treatment of patients with symptomatic arrhythmias. At the Heart Institute of Ho Chi Minh City, catheter ablation has been performed across a wide spectrum of arrhythmias, but overall data on the efficacy and safety of the procedure are still limited. Objective: To determine the efficacy and safety of radiofrequency catheter ablation of cardiac arrhythmias at the Heart Institute of Ho Chi Minh City. Methods: Prospective cohort study of cardiac arrhythmias who underwent catheter ablation from May 2022 to August 2023 at the Heart Institute of Ho Chi Minh City. Results: A total of 186 consecutive patients (pts), average age 43.38 ± 14.42 years old, 64% female (119 pts). AVNRT accounted for 33.9% (63 pts), AVRT 10.2% (19 pts), WPW syndrome 26.9% (50 pts), PVC/VT 27.4% (51 pts) and AFL/AT accounted for 1, 6% (3 pts). The overall success rate of Radiofrequency catheter ablation of cardiac arrhythmias is 98.4% (183 pts), in which the success rate of AVNRT ablation is 100% (63 pts), AVRT 94,7% (18 pts), WPW syndrome 96% (48 pts), PVC/VT 100% (51 pts) and AFL/AT 100% (3 pts). The average procedure time was 106 ± 37.39 minutes. The recurrence rate within 3 months is 1.6% (3 pts). Common complications are inguinal hematoma 4.08% (8 pts), chest pain after the procedure 5.37% (10 pts), transient atrial fibrillation or atrioventricular block 5.92% (11 pts), cardiac tamponade 0.005% (1 pt), no cases of atrioventricular block requiring permanent pacemaker placement (0%) and procedure-related death (0%). Conclusion: Radiofrequency catheter ablation of cardiac arrhythmias has a high success rate, low complication and recurrence rate. These findings support a catheter ablation strategy as first-line therapy in patients with symptomatic recurrent arrhythmias.