Background: Coarctation of the aorta (CoA) represents 5-8% of congenital heart disease, and is associated with aortic stenosis in 60%. They have high morbidity and mortality, which can be prevented by prenatal ultrasound diagnosis, and early treatment; However, its diagnosis is difficult. It has been shown in patients with stenosis and coarctation, the increased echogenicity of the aortic wall, which is why it is decided to identify the frequency of presentation.Materials and methods: Descriptive study. Fetuses with a diagnosis of congenital heart disease with compromised ascending aorta (coarctation and / or aortic stenosis) were included between January 2005 and July 2019. Hyperechogenicity of the aortic wall was evaluated in each of the pathologies, and the prenatal and postnatal concordance of this finding, by means of kappa de cohen. Results: The probability of prenatal hyperechogenicity was 96.4% of fetuses with congenital heart disease with compromised ascending aorta (CoA and stenosis of the aorta). In patients who presented aortic stenosis, coarctation of the aorta or both pathologies, prenatal hyperechogenicity was a positive finding in 100% of patients (n = 25, 30 and 3 respectively). Conclusions: The probability of finding hyperechogenicity in prenatal ultrasound of congenital heart disease with compromised ascending aorta is 96.4%. Diagnostic test studies are necessary to know operational characteristics of hyperecogenicity given its high probability of outcome in patients with this pathology.
