Portal vein
thrombosis is one of the main prehepatic causes of
portal hypertension. The most frequent causes of
thrombosis in this localization, apart from
hepatic cirrhosis, are the following: acute inflammatory diseases and abdominal
cancers,
traumas, proliferative diseases of the hematopoietic system. In recent years attention was given to disorders in hemostasis, such as
thrombophilia, in the course of which
thrombosis development is particularly common. The authors present 10 patients after an incident of portal vein
thrombosis, in which primary hepatic pathology was excluded and tests directed at
thrombophilia were performed. In seven patients abnormalities in the examined parameters were found, and what is more, in two cases they had a complex character and involved more than one parameter. In five patients
hyperhomocysteinemia was found. Among them, in two patients there was also a decreased
protein S activity and in one of them there was also
APC-resistance. In the next two patients there were abnormalities in one of the examined parameters -
APC-resistance.
Hyperhomocysteinemia was found in all patients with idiopathic
thrombosis, and in one of them there were concurrent changes in
protein S activity and
APC-resistance. In patients with the history of portal vein
thrombosis diagnostics of
thrombophilia should be performed.