Liver Transplant in Patients With Portal Vein Thrombosis: The Experience of 55 Patients.

OBJECTIVES: Portal vein thrombosis is no longer a contraindication for liver transplantation. However, varied outcomes are still reported with regard to patients with complete portal vein thrombosis.

MATERIALS AND METHODS: We analyzed data of 505 patients who underwent liver transplant between January 2014 and June 2017. Of 505 patients, 55 (10.9%) had portal vein thrombosis, which included 37 patients (67%) who had living-donor and 18 patients (33%) who had deceased-donor liver transplant. According to Yerdel classification, 5 (9%), 28 (51%), 12 (22%), and 10 patients (18%) had grade I, II, III, and IV portal vein thrombosis, respectively.

RESULTS: Thrombectomy was successful in 46 patients (84%). Forty-three patients had patent portal inflow (93.5%), but 3 patients (6.5%) required a second thrombectomy on day 1 posttransplant. Of 10 patients with grade IV portal vein thrombosis, 9 (16%) underwent extra-anatomic portal vein anastomosis. Of these 9 patients, 7 (77.7%) showed patent portal inflow during the early postoperative period. Median follow-up time was 15.5 ± 13.1 months. During this time, portal vein stenosis was detected in 5 patients. Risk of repeat thrombosis was not significantly different between patients with deceased-donor and patients with living-donor liver transplant. Overall patient survival rates for patients with and without portal vein thrombosis were 73% (40/55) and 84% (376/450), respectively, which showed significant difference (P = .05).

CONCLUSIONS: In contrast to early-grade portal vein thrombosis, complete portal vein thrombosis still provides a treatment challenge with high risk of morbidity and poor early outcomes in liver transplant recipients.