Characteristics and outcomes of fetuses with narrow aorta on prenatal ultrasound
10.13929/j.issn.1003-3289.2024.06.019
- VernacularTitle:产前超声表现为主动脉偏细胎儿特征及其转归
- Author:
Lan MU
1
;
Song CHEN
;
Chunyan ZHONG
Author Information
1. 重庆市妇幼保健院重庆医科大学附属妇女儿童医院超声科,重庆 401147
- Keywords:
fetus;
aortic stenosis;
aortic coarctation;
echocardiography;
prognosis
- From:
Chinese Journal of Medical Imaging Technology
2024;40(6):889-892
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the characteristics and outcomes of fetuses with narrow aorta on prenatal ultrasound.Methods Data of 29 fetuses with narrow aorta on prenatal ultrasound were retrospectively analyzed.The prenatal ultrasound and echocardiographic parameters of newborns were comparatively observed.Results All 29 fetuses with narrow aorta on prenatal ultrasound had thinner aortic isthmus,25 with aortic isthmus diameter larger than,1 equal to and 3 smaller than that of the left subclavian artery.Meanwhile,thinner aortic valve annulus was found in 28 fetuses,thinner ascending aorta in 26 and widened pulmonary valve annulus in 27 and abnormal proportion of ventricular chambers in 10 fetuses(1 with enlarged right ventricle and 9 with smaller left ventricle),and 24 with malformations.Postnatal follow-up detected aortic stenosis(AS)or coarctation of aorta(CO A)in 4 cases and narrow aorta without AS nor CO A in 6 cases,while 19 newborns were found with normal aortic diameter,including 2 cases with increased aortic blood flow velocity.Conclusion Fetuses with narrow aorta on prenatal ultrasound often complicated with thinner aortic isthmus,aortic valve annulus and ascending aorta as well as widened pulmonary valve annulus,sometimes with abnormal proportion of ventricular chambers.Normal aorta diameter could be observed in some cases after birth.
