<prompt> Duodenal blowout following Billroths Gastrectomy MOST commonly occur on?2nd week4th week6th day12th day  <response>: Duodenal blowout is massive leakage from the duodenal stump following Billroth II gastrectomy. It usually occur on the 2nd to 7th postoperative day and is usually presents as sudden intense thoracoabdominal pain, sudden elevation of pulse and temperature, and general deterioration of the condition of patient. Ref: Schwaz 7e, Page 467; Bailey Love 22e, Page 689 