Double inferior vena cava in a monochorionic twin pregnancy with selective fetal growth restriction

Abstract

Congenital anomalies of the infrarenal inferior vena cava (IVC) are well described in adult life, however, little information exists on their associations in fetal life. Here, we describe a case of a monochorionic diamniotic (MCDA) twin pregnancy complicated by selective fetal growth restriction (sFGR) with an incidental finding of a double IVC in one child. In fetal life, variants of the infrarenal IVC are strongly associated with heart defects, which might suggest haemodynamic alterations or genetic causes, even more so in our case with MCDA twins complicated by sFGR.

Bilateral inferior venae cava combined with the persistent left superior vena cava and hemiazygos continuation of left inferior vena cava with drainage into right atrium: A case report

“…Bilateral caval veins and PLSVC malformations are rare abnormal body veins in fetuses. [6][7][8] PLSVC is a relatively common malformation, with an incidence rate of 4.0% in congenital heart disease. The common cardiac malformations include isomerism, atrioventricular septal defect, and left ventricular outflow tract obstruction, elt.…”

“…Bilateral caval veins and PLSVC malformations are rare abnormal body veins in fetuses 6–8 . PLSVC is a relatively common malformation, with an incidence rate of 4.0% in congenital heart disease.…”

Is Prenatal Diagnosis of Duplicated Inferior Vena Cava Really Feasible?

“…Bakry et al 9 reported prenatally diagnosed double IVC with interruption of the suprarenal part with azygous continuation. Mosimann et al 14 described a IVC duplication in one fetus in a monochorionic diamniotic twins. Zhang et al reported on series of prenatally diagnosed cases of left IVC and double IVC and showed high rate of associated anomalies, mostly cardiac.…”