Comparative study on left ventricular systolic function in patients with implanted dual-chamber(DDD) mode cardiac pace-makers using two-dimensional and real-time three-dimensional echocardiography
- VernacularTitle:二维、实时三维超声心动图评价 DDD 模式永久起搏器植入前后左室收缩功能的对比研究
- Author:
Tiantong ZHU
;
Daozi XIA
;
Yujiao DENG
;
Bingbing YANG
;
Yang LI
;
Jianyuan XUAN
- Publication Type:Journal Article
- Keywords:
Two-dimensional echocardiography;
Real-Time three-dimensional echocardiography;
Cardiac pacemaker;
Left ventricular systolic function
- From:
Journal of Chinese Physician
2014;(z1):47-50
- CountryChina
- Language:Chinese
-
Abstract:
Objective To assess the left ventricular systolic function (LVSF) in patients with implanted dual-chamber(DDD) mode cardiac pacemakers using Two-dimensional Echocardiography (2DE),Real-time Tri-plane Echocardiography (RT-3PE)and Full-volume Three Dimensional Echocardiography (FV-3DE).Methods A total of 30 patients with DDD mode cardiac pacemaker were ex-amined by 2DE, RT-3PE and FV-3DE separately.Left ventricle end diastolic volume (LVEDV), left ventricle end systolic volume (LVESV), and ejection fraction (EF) were measured and compared within the three methods above .Results The measurement of EF with patients of post-operation was higher than the patients of pre-operation.The measurements of EF with 2DE were higher than RT-3PE.The measurements of LVEDV , LVESV and SV with 2DE and RT-3PE were lower than FV-3DE, and EF was higher .There were statistically significant differences in above measurements ( P <0.05 ) .But there were no statistically significant differences in measurements of LVEDV and LVESV between 2DE and RT-3DE ( P >0.05).Conclusions Implanting DDD mode cardiac pace-maker can evaluate LVSF of patients obviously .FV-3DE can evaluate LVSF in patients with DDD mode cardiac pacemaker accurately . The LVEDV, LVESV and SV are underestimated by 2DE and RT-3PE, and EF is overestimated by 2DE and RT-3PE.
