The multiorgan abdominal ischemic preconditioning (MAIP) protocol is executed by clamping the supraceliac abdominal aorta in rats. The primary structures involved include the portal vein, hepatic ...

Veins have one-way valves, so blood can travel in only one direction. If the walls of the vein stretch and become less flexible or elastic, these valves may weaken. A weak valve can allow blood to ...

Of the specific vascular lesions observed, stenosis of the splenic vein was found in 22 patients, stenosis of the superior mesenteric-portal vein in 13 patients (Fig. 1) and thrombosis inside the ...