Impacts of Right Ventricular Alternative Site Pacing on Left Ventricle Contractibility and Systolic Synchroni-city by Real-Time Three Dimensional Echocardiography
- VernacularTitle:实时三维超声心动图评价右室不同部位起搏对左室收缩功能及收缩同步性的影响
- Author:
Yanmin XUE
1
;
Cuizhen PAN
;
Wei WANG
;
Yangang SU
;
Jing BAI
;
Xue GONG
;
Xianhong SHU
Author Information
1. 复旦大学附属中山医院心内科
- Keywords:
Right ventricular apex pacing;
Right ventricular outflow tract pacing;
Real-time three-dimensional echocar-diography;
Systolic synchrony
- From:
Chinese Journal of Clinical Medicine
2014;(3):304-306
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the impacts of right ventricular alternative site pacing on left ventricle contractibility and sys-tolic synchronicity by real-time three dimensional echocardiography .Methods :Tweenty patients with atrio-ventricular (AV ) blocks undergoing dual-chamber pacemaker implantation were divided into the right ventricular apex pacing group (Group RVA) and the right ventricular outflow tract pacing group (Group RVOT ) according to the different pacing sites . Left ventricular volume ,ejection fraction and LV regional wall motion were assessed by echocardiography before and 3 months after operation .The left ventricle contractibility and systolic synchronicity were compared between the two groups .Results:Stand-ard deviation and difference of time to minimum systolic volume (Tmsv-dif ,Tmsv-dif% ,Tmsv-sd ,Tmsv-sd% ) of 16 seg-ments ,12 segments and 6 segments ,LV volume ,excursion and regular 2D parameters do not differ .Conclusions :RVA and RVOT pacing are the same in terms of LV synchrony in short time follow-up .
