Application of speckle tracking imaging for evaluation of the development of left ventricle after receiving pulmonary artery banding
10.3760/cma.j.issn.1004-4477.2011.12.002
- VernacularTitle:超声斑点追踪技术评价肺动脉环缩术后心室发育程度的初步研究
- Author:
Yisheng SHI
;
Shoujun LI
;
Yongqing LI
;
Xiuzhang Lü
;
Hao WANG
;
Peng LI
- Publication Type:Journal Article
- Keywords:
Echocardiography;
Heart defects,congenital;
Transposition of the great arteries;
Pulmonary artery banding;
Ventricular function
- From:
Chinese Journal of Ultrasonography
2011;20(12):1017-1020
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo identify the suitable echocardiographic predictor of speckle tracking imaging (STI) for evaluation of development of left ventricle(LV) after pulmonary artery banding (PAB).Methods Seven children older than 3 months with transposition of great arteries with intact ventricular septum (TGA) were enrolled,they received pulmonary artery banding (PAB group).Eight body surface area matched healthy children were severed as control group.Using the STI technique,the rotation curves at apex and base were analyzed.ResultsAll the patients discharged eventually.The intraoperative LV/RV systolic pressure ratio in PAB group was (0.32 ± 0.04):1.There were no differences in ejection fraction and wall thickness between control and PAB group.However,the end diastolic diameter and end diastolic volume in PAB group was significantly reduced.Compared with the control group,the hypoplasia of LV in PAB group was associated with an extended time to peak basal rotation,and furthermore,the basal and global torsion was significantly reduced by 3 times.ConclusionsSTI showed local rotation and global torsion might be thevaluable predictor to evaluate the regressed and the development of LV peri-PAB procedure for the older children with TGA.
