[Blocked suprahepatic pressure and the portohepatic gradient in evaluation of the portal circulation (author's transl)].

Blocked suprahepatic pressure and the portohepatic gradient were studied in correlation with the circulation parameters and expressed by graphical representation allowing approximate quantitative evaluation of their variation. It is a complete analysis of the possible variations produced in the hepatic and portal circulation by extrahepatic and especially intrahepatic shunts resulting from morphological changes due to the active and passive fibrous septa that are established during cirrhosis. This leads to a hemodynamic classification of the condition of the portal and hepatic circulation, evidencing the importance of determination of the blocked suprahepatic pressure and portohepatic pressure gradient for correct interpretation of the clinical picture and for medical or surgical therapeutic guidance.