Superselective embolization of lower gastrointestinal hemorrhage: a new paradigm.
In the past 5 years, there has been a rapid evolution in the endovascular treatment of lower gastrointestinal bleeding. Previously, most bleeding distal to the ligament of Treitz was managed with catheter-directed vasoconstrictive therapy. Currently, microcatheters allow superselective embolization of bleeding vessels, a technique that minimizes potential ischemic complications and obviates many drawbacks associated with vasopressin infusion. This article summarizes the current radiologic approach for patients with severe colonic hemorrhage.
Funaki
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Sections of Vascular and Interventional Radiology and Abdominal Imaging, University of Chicago Hospitals, 5840 S. Maryland Avenue, MC 2026, Chicago, IL 60637, USA. bfunaki@midway.uchicago.edu
D000792:Angiography; D002404:Catheterization / Q000295:instrumentation; D003108:Colonic Diseases / Q000628:therapy; D004378:Duodenal Diseases / Q000628:therapy; D004621:Embolization, Therapeutic / Q000295:instrumentation* / Q000379:methods*; D006471:Gastrointestinal Hemorrhage / Q000628:therapy*; D006801:Humans; D041741:Lower Gastrointestinal Tract / Q000473:pathology*; D017538:Mesenteric Artery, Superior / Q000000981:diagnostic imaging