Liver transplant with portocaval hemitransposition: blood supply with only hepatic artery is possible?

We present herein a case of orthotopic liver transplantation (OLT) with portocaval hemitransposition. The patient underwent OLT for hepatocellular carcinoma with diffused portomesenteric vein thrombosis. The unique feature of this case was that 6 months after the operation, because of recurrent carcinoma, the hepatic vein was occluded and the portal vein became the drainage vein and the hepatic artery was the only vessel that supplied the liver. Yet the patient survived. Regarding the unique hemodynamic changes of the patient, could we let the portal vein alone in case of diffuse portomesenteric thrombosis in OLT?