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Updated: Jun 18, 2026

Porcine Liver Transplantation Without Veno-Venous Bypass As an Extended Criteria Donor Model
Published on: August 17, 2022
Successful resolution of severe hepatopulmonary syndrome following liver transplantation
Sonal Asthana1, Connor Maguire, Lawrence Lou
1Department of Surgery, University of Alberta, Edmonton, AB, Canada.
Abstract:
Hepatopulmonary syndrome (HPS) is a complication of portal hypertension, defined by the presence of liver disease, abnormal pulmonary gas exchange and evidence of intrapulmonary vascular dilatations producing a right-to-left intrapulmonary shunt. Liver transplantation (LT) is the treatment of choice; however, severe hypoxemia (PaO(2) < 50 mmHg on room air) is considered a contraindication to LT. This approach disadvantages some patients, particularly young patients with no intrinsic cardio-respiratory disease. We discuss one such patient who improved with LT despite having extremely severe HPS (PaO2 < 29 mmHg).