MRCP2-2351
A 42-year-old woman presents with abdominal distension, tenderness in the right upper quadrant, and pallor that has been going on for three days. Her blood count reveals a hemoglobin level of 71 g/L (normal range: 115-165), a white blood cell count of 2.5 ×109/L (normal range: 4-11), and a platelet count of 80 ×109/L (normal range: 150-400). Imaging studies confirm Budd-Chiari syndrome with complete thrombosis of the hepatic vein, and flow cytometry confirms paroxysmal nocturnal hemoglobinuria. What is the most appropriate treatment at this stage?