<prompt> Vascular inflow occlusion of the liver is by -Clamping the hepatic arteryOccluding the portal veinClamping the hepatic veinsThe Pringle manoeuvre  <response>: Total clamping of the hepatic pedicle, by placing an atraumatic clamp across the foramen of Winslow. Appropriate-sized vascular clamp or loop snare easily controls hemorrhage from either the portal vein or the hepatic arteries. Inflow occlusion durations of up to 30 minutes can be tolerated safely in cirrhotic livers and possibly up to 60 minutes in early disease. If prolonged occlusion is required, intermittent clamping can be used with repeated clampings of 10-20 minutes duration, each followed by 5 minutes declamping. 