Abstract The Eustachian valve (EV) is an embryological remnant of the inferior vena cava that during fetal life helps divert oxygenated blood from the IVC toward the foramen ovale to escape the pulmonary circulation. This remnant usually regresses after birth and is considered a benign finding in the majority of cases. However. EV can lead to complications in the neonatal period or la... https://hollandscountryclothinges.shop/product-category/snap-caps/