Pulmonary Hypertension as a Rare Complication After Orthotopic Liver Transplant in a Patient With Non-alcoholic Steatohepatitis (NASH) Cirrhosis Complicated by Hepatopulmonary Syndrome.

Hepatopulmonary syndrome is a phenomenon that results in an intrapulmonary shunt leading to dyspnea and hypoxemia with poor response to oxygen supplementation. It is now an indication for liver transplantation; however, some transplants result in subsequent pulmonary hypertension. Postulated mechanisms include unmasking of underlying pulmonary hypertension with liver transplant and increased pulmonary vascular resistance due to increased blood flow in hepatopulmonary syndrome.