A study on single beat real-time three dimensional echocardiography assessment of volume and function of right ventricular in patients with atrial septal defect
10.3969/j.issn.1671-8348.2013.35.012
- VernacularTitle:单心动周期实时三维超声评价房间隔缺损患者的右室容积和功能研究
- Author:
Wenhong TAO
;
Qifeng GUO
;
Yongzheng CAO
- Publication Type:Journal Article
- Keywords:
echocardiography,three dimensional;
atrial septal defect;
ventricular function,right
- From:
Chongqing Medicine
2013;(35):4262-4264
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the changes of right ventricular(RV) volume and function in patients with atrial septal de-fect(ASD) .Methods 31 patients with ASD-type secundum(ASD group) and 30 age-matched controls(control group) were includ-ed .Single beat real-time three dimensional echocardiography (sbRT3DE) were performed in all to evaluate right ventricular volume and function ,then right venrtricular cardiac output(RVCO) were calculated with heart rate .Further correlative analysis was calcu-lated between right ventricular volume and function parameters of the ASD group and ASD size and the patient′s age .Results Right ventricular end-systolic volume(RVESV) ,right ventricular end-diastolic volume(RVEDV) ,right ventricular stroke volume (RVSV) ,right ventricular ejection fraction(RVEF) ,RVCO of the ASD group were significantly higher than that of control group (P<0 .001) .The maximum diameter of ASD had positive relation with RVESV ,RVEDV ,RVSV ,RVCO(r=0 .55 ,P<0 .01 ;r=0 .61 ,P<0 .01 ;r=0 .63 ,P<0 .01;r=0 .61 ,P<0 .01 ,respectively ) ,and was best correlation with RVSV .But ,there was no signifi-cant correlation between the maximum diameter of ASD and RVEF (r=0 .00 ,P>0 .05) .The patients′age had positive relation with RVESV ,RVEDV ,RVSV(r=0 .53 ,P<0 .01 ;r=0 .48 ,P<0 .01 ;r=0 .41 ,P<0 .01 ,respectively) ,had negtive relation with RVEF (r= -0 .44 ,P<0 .05) ,while there was no significant correlation between the patient′s age and RVCO(r=0 .26 ,P>0 .05) .Conclu-sion sbRT3DE is a fast and accurate new technology in evaluating RV volume and function .Atrial level left-to-right shunt leading to an increase in RV volume ,RV enlargement produces myocardial contractility .RV volume increases with ASD size ,then RV func-tion was enhanced .RV volume increases with patient′s age ,RV function is relatively lower .
