ligation of the oesophagus on a vossschulte prosthesis provides interruption of the venous back-flow in gastro-oesophageal wall occurring in portal hypertension , and therefore renders more effective the disconnection techniques used for oesophageal varices when liver function is too severely impaired to permit a portal-systemic shunt .
C0014876
oesophagus
C0014867
oesophageal varices