PECULIARITIES OF THE PANCREATIC ARTERIES ANASTOMOSES FORMATION

Abstract

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Aim. The study was designed to establish anatomical features of the pancreatic arteries anastomoses formation. Material and Methods. We examined 105 macro-preparations of the pancreatic arteries using angiography. Results and Discussion. 88% of cases showed anterior vertical pancreaticoduodenal anastomosis between the anterior superior pancreaticoduodenal artery and pancreaticoduodenal or its anterior branch. In 58.5% of cases we observed posterior anastomotic arc or posterior vertical pancreaticoduodenal intersistemic anastomosis which was formed by connections of posterior superior pancreaticoduodenal artery and posterior branches of the inferior pancreaticoduodenal artery or additional inferior pancreatoduodenal artery. As a variant of blood supply to the head of pancreas, a horizontal intra-system anastomosis was found between the anterior and posterior branches of the lower pancreatoduodenal artery. In 44% of cases the pancreatic branch supplying the head and neck of the pancreas formed anastomosis with the right branch of the dorsal pancreatic artery (branch of splenic artery). In 26.7% of cases anastomosis was between the lower pancreatoduodenal arteries and the right branch of the dorsal pancreatic artery. In half of these cases, the right branch of the dorsal pancreatic artery was divided into two branches: the upper and the lower. Conclusions. Presence of anastomoses between branches supplying pancreas has clinical significance for surgery, especially when performing proximal pancreatic resections.