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目的探讨超声心动图诊断胎儿双主动脉弓(DAA)的临床价值。方法回顾性分析8例胎儿DAA的超声图像特征,并随访临床结果。结果 8例DAA(双侧弓通畅型6例,一侧弓闭锁型2例),5例属于单纯性DAA,其余3例(37.5%,3/8)并发其他心内外畸形,包括1例染色体异常。6例DAA经超声心动图筛出,引产终止妊娠,其中3例经尸检证实为DAA;1例误诊为右位主动脉弓(RAA)伴左位动脉导管,另1例误诊为RAA伴右位动脉导管,产后经超声心动图确诊为DAA,手术干预后的疗效满意。结论超声心动图是诊断胎儿DAA的可靠方法,早期明确诊断有利于胎儿的预后评估。
Objective To investigate the clinical value of echocardiography in the diagnosis of fetal dual aortic arch (DAA). Methods A retrospective analysis of 8 cases of fetal DAA ultrasound image features, and follow-up clinical results. Results DAA was found in 8 cases (6 cases of bilateral aortic arch and 2 cases of closed arch in one side), 5 cases were simple DAA, and the other 3 cases (37.5%, 3/8) were complicated by other intracardiac malformations, including 1 chromosome abnormal. Six cases of DAA were screened by echocardiography and induced termination of labor. Three of them were confirmed by autopsy as DAA. One case was misdiagnosed as RAA with left-sided ductus arteriosus and the other as misdiagnosed as RAA with right-sided ductus arteriosus , Postpartum confirmed by echocardiography DAA, the effect of satisfactory after surgical intervention. Conclusion Echocardiography is a reliable method for the diagnosis of fetal DAA. Early diagnosis can be helpful for the prognosis evaluation of the fetus.