**5.6 Retrograde mesenteric bypass**

The infrarenal aorta, a prior infrarenal aortic graft, or the iliac artery are excellent inflow sources, Two-vessel reconstructions can be performed with retrograde grafts by doing a side-to-side anastomosis to the SMA and an end-to-side anastomosis to the common hepatic artery. These grafts may be passed on top of or beneath the pancreas and curved in a C shape toward the hepatic artery.
