抄録
Accurate identification of the point of hemorrhage is important during endoscopic hemostasis of upper gastrointestinal hemorrhage；however, large amounts of food residue and blood clots often make it difficult to detect the source of hemorrhage during an emergency procedure. Changing body position, washing with tap water, attaching a transparent hood, and the use of an oblique- or side-viewing endoscope are recommended to maintain a clear endoscopic view1). In this case report, we present three cases with hemorrhagic gastric ulcers that could not be identified while the patient was in a left lateral position but were ultimately detected and treated once the patient was repositioned into the right lateral position. In all three cases, endoscopic hemostatic treatment was ultimately performed without complications while the patient was in a right lateral position. Changing from a left lateral position to a right lateral position seems to be an effective option in cases in which the source of hemorrhage is difficult to identify while the patient is in a left lateral position, and this technique should be used more actively in clinical practice.
