Medscape: Colonoscopy No Help in Finding Melena Source - in Gastroenterology, General Gastroenterology

 Wiki: Melena

Medical News: Colonoscopy No Help in Finding Melena Source - in Gastroenterology, General Gastroenterology

"Colonoscopy had a lower-than-expected yield when used after a negative upper endoscopy in stable patients with melena, researchers found.
The procedure diagnosed a suspected source of the bleeding in just 4.8% of patients with melena in a retrospective case-control study by Jason P. Etzel, MD, of Oregon Health and Science University, Portland, and colleagues......