Successful Pregnancy in A Patient with Fontan Surgery: A Case Report

The Fontan operation is a palliative procedure for patients with several forms of congenital heart disease unsuitable for biventricular circulation, especially tricuspid valve atresia. In this procedure, the vena cava flow is directed to the pulmonary arteries bypassing the ventricle. Pregnant patients with Fontan surgery in their post-surgical history have more maternal risks. We should counsel patients with saturations <85%, depressed ventricular function, refractory arrhythmia, or protein-losing enteropathy against pregnancy (mWHO; IV). In this study, we review a pregnant case that has successful pregnancy and Fontan palliation and lv systolic heart failure (LVEF: 35%) in her pas t medical history.