how long does an endoscopy last
The patient will be in the Operating Room for 20-45 minutes for an upper endoscopy, and 30-120 minutes for a colonoscopy.Many patients have both an upper endoscopy and colonoscopy under the same anesthesia, which takes 40-120 minutes. http://www.cincinnatichildrens.org/health/info/abdomen/procedure/gi-endoscopy.htm.I had an endoscopy last month and the actual proceduare was only about 10 min because it was normal.any patients have both an upper endoscopy and colonoscopy under the same anesthesia, which takes 40-120 minutes. http://www.cincinnatichildrens.org/health/info/abdomen/procedure/gi-endoscopy.htm.