Postnatal Amelioration of Fetal Right Ventricular Hypoplasia Associated with Large Eustachian Valve: A Case Report

Abstract In fetuses, the Eustachian valve directs oxygenated blood returning from the inferior vena cava into the left atrium via the foramen ovale. If too large, the Eustachian valve can restrict right ventricular inflow, as well as induce postnatal cyanosis via an interatrial right-to-left shunt....

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Bibliographic Details
Published in:American journal of perinatology reports 2019-10, Vol.9 (4), p.e357-e360
Main Authors: Iwatani, Ayaka, Miyake, Fumihito, Ishido, Hirotaka, Kanai, Masayo, Ishiguro, Akio, Iwamoto, Yoichi, Kabe, Kazuhiko, Masutani, Satoshi
Format: Article
Language:English
Subjects:
Case Report
eustachian valve
fetal
foramen ovale
hypoplasia
right ventricle
tricuspid
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Summary:Abstract In fetuses, the Eustachian valve directs oxygenated blood returning from the inferior vena cava into the left atrium via the foramen ovale. If too large, the Eustachian valve can restrict right ventricular inflow, as well as induce postnatal cyanosis via an interatrial right-to-left shunt. We report a fetal case of postnatal amelioration of the tricuspid valve and right ventricle hypoplasia, despite significant right ventricular hypoplasia associated with a large Eustachian valve. Application of an appropriate respiratory management regimen to help reduce pulmonary vascular resistance is of particular importance for the reversal of the right-to-left shunt via the foramen ovale and associated increases in right ventricular inflow.
ISSN:2157-6998
2157-7005
DOI:10.1055/s-0039-3400317