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目的探讨产前胎儿超声心动图对诊断胎儿双主动脉弓畸形的价值。方法分析产前超声诊断为双主动脉弓36例胎儿超声图像特征,追踪其临床结局。结果 36例双主动脉弓胎儿均通过超声三血管-气管切面作出诊断。其中,单纯双主动脉弓24例,合并心内畸形9例,合并心外畸形3例。有随访结果的14例单纯双主动脉弓、5例合并心内畸形和3例合并心外畸形者均得到影像学或尸检证实;仅2例合并心内畸形胎儿的初始诊断与结果不符。结论胎儿双主动脉弓有特征性超声表现,通过三血管-气管切面可以在胎儿时期有效检出双主动脉弓畸形,对评估胎儿预后及指导后期治疗有重要临床价值。
Objective To investigate the value of prenatal fetal echocardiography in the diagnosis of fetal dual aortic arch deformity. Methods The characteristics of fetal ultrasound images of 36 cases of double aortic arch diagnosed by prenatal ultrasound were analyzed and the clinical outcome was tracked. Results 36 cases of double aortic arch fetus were diagnosed by ultrasound tri-vascular-tracheal section. Among them, 24 cases of simple double aortic arch, 9 cases of combined heart malformations, combined with extra-cardiac malformations in 3 cases. The follow-up results of 14 cases of simple double aortic arch, 5 cases of intracardiac deformity and 3 cases of extra-cardiac malformations were confirmed by imaging or autopsy; only 2 cases of intracardiac malformation fetus initial diagnosis and results do not match. Conclusions Fetal bifacial arch has the characteristic ultrasound manifestations, and the double vessel aortic arch deformity can be detected effectively in the fetus through tri-vascular-tracheal section. It has important clinical value in assessing fetal prognosis and guiding post-treatment.