Abstract
Background:Portal vein thrombosis (PVT) might be a catastrophic event complicating liver cirrhosis and hepatocellular carcinoma (HCC). Aim:role of JAK2 RS V617F mutation as a risk factor for PVT development in liver cirrhosis and HCC. Methods:A case control study conducted on 100 PVT patients (76 HCC and 24 liver cirrhosis) additionally, 100 healthy individuals used as a control group. PVT was diagnosed incidentally by Doppler ultrasound during routine follow-up HCC screening. Prothrombin G20210A mutation, MTHFR mutation, Factor V Leiden mutation (VFL), antithrombin III (ATIII), protein C, S, and antiphospholipid antibodies, along with JAK2 RS V617F mutation by real-time polymerase chain reaction all were analyzed.Results:Patients with PVT were significantly older (p<0.001), thrombocytopenic (p<0.001), with high alkaline phosphatase (p<0.001). JAK2 RS V617F mutation was found in 28/100 (28%) in idiopathic PVT complicating liver cirrhosis and hepatocellular carcinoma. Cases with positive JAK2 rs V617F mutation were significantly accompanied by protein S deficiency (P 0.03), LA absence (p 0.06), and high frequency of ascites (P 0.03). While, the MTHFR heterozygous mutation (p0.001), ATIII (P 0.02), and VFL (P 0.01) were more frequent with negative JAK2 rs V617F mutation. The comparison between demographic data and thrombophilic parameters in PVT cases revealed that no significant differences were recorded except for male gender, Diabetes Mellitus, splenomegaly significantly increased among HCC cases (p<0.05). Conclusions: JAK2 rs V617F mutation must be considered in any case of PVT with liver cirrhosis and hepatocellular carcinoma without identified thrombophilic risk factors, with potential considerations of evolving myeloproliferative disorders. New diagnostic and therapeutic implications are still awaited.
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