Fetal Diagnosis in a Unique Case of Vascular and Cardiac Interdependence in Omphaloischiopagus Conjoined Twins

Graphical abstract
Highlights • Cardiac interdependence in conjoined twins is a rare phenomenon. • Presence of congenital heart disease may be an important prognostic factor. • There is high risk of high-output heart failure and pulmonary hypertension in the donor twin. • If reconstruction is feasible, early separation may improve the chance of survival.