先天性血管环的产前超声声像特征分析

Prenatal sonographic features of congenital vascular ring

目的：分析产前超声声像在先天性血管环中的临床诊断特点及价值。方法对52例先天性血管环胎儿资料进行分析，探讨产前超声声像在先天性血管环中的诊断特点及主要表现。结果52例胎儿中，有迷走右锁骨下动脉7例，右位主动脉弓伴左侧动脉导管38例，肺动脉吊带 2例，5例双主动脉弓，且胎儿均出现不同类型超声表现。52例胎儿中，16例合并畸形，占30．77％。其中，排在前3位的分别为：室间隔缺损、法洛四联症、胎儿多囊性肾发育不全，分别占50．00％、12．50％及12．50％；52例经尸检得到证实，12例选择终止妊娠，24例选择分娩。其中，20例右位主动脉弓伴左侧动脉导管，肺动脉吊带选择分娩1例和迷走右锁骨下动脉3例，产后超声检查右位主动脉弓16例，其余16例失访。结论产前超声声像诊断先天性血管环效果理想，通过三血管气管切面能准确的诊断及鉴别先天性血管环，值得推广应用。

Objective To analyze prenatal sonographic features and clinical diagnostic evaluation of congenital vascular ring.Methods The clinical data of 52 children with congenital vascular ring were analyzed to explore the characteristics and prenatal sonographic diagnosis mainly in congenital vascular ring.Results 52 cases of fetuses with vagus right subclavian artery 7 cases,right aortic arch with the left artery catheter in 38 cases,2 cases of pulmo-nary artery sling,5 cases of double aortic arch,and there were different types of ultrasound performance.In 52 cases of fetus,16 patients with malformations,accounting for 30.77%.Among them,the top three were ventricular septal defect,tetralogy of fallot,fetal polycystic kidney agenesis,which accounted for 50.00%,12.50% and 12.50%. 52 cases confirmed by autopsy,12 cases chose to terminate the pregnancy,24 cases choice of delivery.Among them, 20 cases of right aortic arch with the left side of the ductus arteriosus,pulmonary artery sling choose one case of child-birth and vagus right subclavian artery three cases,post -natal ultrasonography right aortic arch in 16 cases,and the remaining 16 patients were lost.Conclusion Prenatal sonography in diagnosis of congenital vascular ring has desired effect,three -vessel trachea view through accurate diagnosis and identification of congenital vascular ring,and it should be widely applied.