Fifty-nine consecutive patients who were bleeding from the upper gastrointestinal tract were examined endoscopically with fiberoptic instruments. The site and nature of the bleeding were identified in 84% of the patients without significant morbidity or mortality. Endoscopic examination of the esophagus, stomach and duodenum in the bleeding patient should be done within 12 to 24 hours after hospital admission and before barium study of the upper gastrointestinal tract.
Schuman, Bernard M.; Gluckmann, Roberto F.; Anselm, Klaus; and Priest, Robert J.
"The Endoscopic Approach to the Diagnosis of Upper Gastrointestinal Bleeding,"
Henry Ford Hospital Medical Journal
: Vol. 20
Available at: https://scholarlycommons.henryford.com/hfhmedjournal/vol20/iss2/3