Comparison of the prenatal ultrasonic features between left and right isomerism
10.3760/cma.j.issn.1004-4477.2011.05.020
- VernacularTitle:胎儿左、右侧异构综合征产前超声特征的对比研究
- Author:
Meifang LIN
;
Hongning XIE
;
Lan LI
;
Huijuan SHI
;
Ju ZHENG
;
Yunxiao ZHU
;
Lijuan LI
- Publication Type:Journal Article
- Keywords:
Ultrasonography,prenatal;
Heart defects,congenital;
Atrium isomerism
- From:Chinese Journal of Ultrasonography
2011;20(5):432-435
- CountryChina
- Language:Chinese
-
Abstract:
Objective To compare the prenatal ultrasonic characteristics between left and right isomerism as referring to autopsy outcomes.Methods Between November 2007 and July 2010,fetuses with isomerism that were confirmed by autopsy,were identified from 1200 prenatal ultrasonic scans.Their abnormal spectrums and ultrasonic features were analyzed and comparied between left and right isomerism.Results A total of 18 fetuses with right isomerism and 4 fetuses with left isomerism were detected and confirmed.The major findings of the right isomerism were;viscerocardiac heterotaxy (17,94%),anomalous pulmonary venous connection (16,89%),complete atrioventricular septal defect (15,83%),juxtaposition of the descending aorta and inferior vena cava(12,67%),left persistent superior vena cava (11,61%),right aortic arch (10,56%) and univentricle (10,56%).As for the left isomerism,all had viscerocardiac heterotaxy and interruption of inferior vena cave,three of them had heart block,complete atrioventricular septal defect and hypoplasia of aorta,two of them had univentricle.Conclusions Viscerocardiac heterotaxy,complete atrioventricular septal defect,univentricle are the most common anomalies detected.Right isomerism cases usually exist with anomalous pulmonary venous connection,juxtaposition of the descending aorta and inferior vena cava as well as right aortic arch.The left isomerism cases usually have interruption of inferior vena cave,heart block and hypoplasia of aorta.
