Iliacomesenteric venous bypass in superior mesenteric artery occlusion—Vascular Surgery

Perform median laparotomy from xiphoid down to symphysis, carrying the incision to the left of the umbilicus.

Open the retroperitoneum to the right of the palpable aorta and coagulate any small visible vessels prior to transection. Locate the inferior mesenteric vein.

Tip:

An incision midway over the aorta may result in more severe bleeding from small, anteroaortic vessels, and there is the risk of inadvertent injury to the inferior mesenteric artery. Incisions carried more to the right of the aorta avoid these risks.