Double Bypass Versus Stent-treatment in Irresectable Pancreatic Cancer

Inclusion Criteria: 1. Preoperatively * Patients with stent treated tumor in the pancreatic head or periampullary planned for pancreaticoduodenectomy * The patient jaundice should have worn off and there should be no signs of duodenal obstruction * The patient has given informed consent after verbal and written information in accordance with approved ethics application * The patient has no anatomical conditions making endoscopic therapy impossible such as previous Billroth II or Gastric Bypass. 2. Intraoperatively * Peroperative findings of of carcinomatosis, metastases or local irresectability who oppose radical surgery * Surgical double bypass should be technically feasible * The patient has given informed consent after verbal and written information in accordance with approved ethics application Exclusion Criteria: * Peroperative signs of dysfunction on biliary stent * Peroperative findings of gastric outlet obstruction * Surgical double bypass not technically feasible