<prompt> The vessel which needs to be ligated in a patient with a bleeding peptic duodenal ulcer is?Left gastroepiploic arteryGastroduodenal arteryLeft gastric arterySuperior Pancreatico-duodenal artery  <response>: Ans. b Gastroduodenal arteryRef: Bailey and Love 26th ed.1023 Perforations involving the gastroduodenal artery complex occur as a sequel to transmural ulceration of the posterior duodenal wall. The gastroduodenal artery, is a branch of the hepatic artery, passes behind the first part of the duodenum, and is responsible for bleeding in duodenal ulcer. 