Eisenmenger syndrome (ES) is a condition where a previous congenital heart disease with right to left shunt eventually because of
development of pulmonary arteria hypertension converts into a left to right shunt bypassing the lungs. Patients who were
previously acyanotic become cyanotic and hypoxic. ES when associated with pregnancy increases the maternal and foetal risk.
There is a 50% risk of sudden maternal death in ES. The overall estimated foetal wastage is reported to be up to 75%. Therefore
patients with ES are advised not to conceive and if they become pregnant should terminate pregnancy by the end of first trimester.
Treatment of these patients requires a multi-specialist care when termination of pregnancy is inevitable. We present an antenatal
case of VSD with ES.
Keywords: Pulmonary, hypertension, trimester, acyanotic, cyanosis