The role of wireless capsule endoscopy in investigating unexplained iron deficiency anemia after negative endoscopic evaluation of the upper and lower gastrointestinal tract

This study demonstrates the importance of investigating the small bowel with WCE in patients with unexplained IDA after negative standard endoscopic evaluation. Wireless capsule endoscopy is superior to enteroclysis for detecting lesions of the small bowel in patients with unexplained IDA and should be the next diagnostic test of choice after unremarkable standard endoscopic evaluation.