ĐẶC ĐIỂM VỀ MÁY TẠO NHỊP TIM VĨNH VIỄN ĐƯỢC CHỈ ĐỊNH CẤY MÁY TẠO NHỊP TẠI VIỆN TIM MẠCH VIỆT NAM

Abstract

Objective: To study the situation and characteristics of permanent pacemakers implantation indicated for pacemaker implantation at the Vietnam National Heart Institute. Methods: A prospective, cross-sectional descriptive study on the patients who received the pacemaker implantation at the Vietnam National Heart Institute during the period from August 1, 2019 to March 30, 2020. Results: Study on 294 patients who permanent pacemaker implantation at the Vietnam National Heart Institute have results: Indication for pacemaker implantation and location of atrial and ventricular electrodes: The rate of patients have an indication for pacemaker implantation with atrioventricular block was the highest (46.6%), sinus node failure was 42.9%, Brugada syndrome (2.4%), ventricular arrhythmias (4.8%), heart failure (3.3%), machine replacement 19%. Among 246 implanted right ventricular electrodes, the implantation position in the Interventricular septum accounts for the highest percentage (87.0%). Among the 207 implanted right atrial electrodes, the most implanted position was the right atrium (94.2%), the left ventricular electrode position was placed mainly in the lateral branch of the coronary sinus vein. Rate of pacemaker types: The rate of implantation of 2-chamber pacemaker is the highest (67.7%), 1-chamber pacemaker is 23.8%, Implantable cardioverter defibrillator (ICD) machine accounts for 5.8%, Resynchronization Therapy (CRT) machine is 2.7%. the number of patients having to replace the machine accounts for 19%. There were 8 patients (2.7%) upgraded from 1- chamber pacemaker to 2-chamber pacemaker. Some pacing parameters.The mean of right ventricular pacing threshold was 0.74 ± 0.22 V, the lowest was 0.2 V, the highest was 2.0 V. The mean of right atrial pacing threshold was 0.93 ± 0.31, the lowest was 0.4 V, The highest is 2.4V, the average of left ventricular pacing threshold was 1.10 ± 0.62 V, the lowest is 0.6 V, and the highest is 2.6V.