The right gastroepiploic artery is a branch of the gastroduodenal artery, running leftward along the greater curvature of the stomach in the greater omentum. It anastomoses with the left gastroepiploic artery (from the splenic) along the greater curvature and gives omental branches downward to supply the greater omentum. Together they form the arterial arcade of the greater curvature.
The right gastroepiploic artery is used as a conduit in coronary artery bypass surgery when harvested as a pedicled graft from the greater curvature, anastomosed to the right or posterior descending coronary artery. It is a second-line graft after the LIMA, used in total arterial revascularisation strategies. The vessel is also encountered during Billroth II gastrectomy and distal gastrectomy where the greater curvature arcade is divided. Knowledge of its origin from the gastroduodenal artery means it is sacrificed in pancreaticoduodenectomy.
The right gastroepiploic artery provides a pedicled coronary conduit anastomosed in situ to the posterior descending or right coronary artery, offering a 5-year patency approaching 80% as part of total arterial revascularisation, particularly suited to patients with poor saphenous veins.
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