“…This is often the case in the following situations: operated tetralogy of Fallot, right ventricle to pulmonary conduits used to repair truncus arteriosus or pulmonary atresia with ventricular septal defect (VSD), or repaired malposition of the great arteries with VSD. This situation is often well tolerated, even in cases of severe pulmonary regurgitation, and delivery might be normal 8. The fear of ventricular or atrial arrhythmia can sometimes lead to pre-pregnancy pulmonary valve replacement, if the functional status before pregnancy is greatly impaired.…”