Patients and Methods
The study did not use an actual patient, but rather a model that played out different possible treatment options. The base-case (hypothetical) patient was a 50-year-old man with a six-month history of recurrent melena (stools stained black by blood pigment or dark blood products) and associated iron deficiency. The patient had a prior normal upper endoscopic examination, colonoscopy, and small bowel x-ray series. The patient was considered to be a candidate for a CE, as well as endoscopic or surgical therapy, for presumed small-bowel sources of the bleeding.
A cost-effectiveness analysis is a quantitative method used to evaluate the outcomes and costs of interventions designed to improve health. Researchers in this study used decision analysis software to create a decision flow chart to compare no therapy (reference arm) to five other treatment options: (1) push enteroscopy, (2) intraoperative enteroscopy (done in an operating room requiring a formal surgery), (3) angiography, (4) initial anterograde DBE, followed by a retrograde DBE if the patient had ongoing bleeding, and (5) small bowel CE followed by a DBE guided by the CE findings. Patients in the CE arm would only proceed to a DBE if they had persistent obscure bleeding after the CE examination. Patients with normal CE examinations and ongoing GI hemorrhage would undergo an initial anterograde DBE, with the assumption that a lesion might have been missed on the prior CE examination. The patients in the no-therapy arm would not undergo any endoscopic intervent
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| Contact: Anne Brownsey abrownsey@asge.org 630-570-5635 American Society for Gastrointestinal Endoscopy Source:Eurekalert |