2023 Volume 43 Issue 5 Pages 839-843
Transcatheter arterial embolization (TAE) is currently accepted as the key procedure for lower gastrointestinal bleeding. Proper selection of the embolization materials and adequate caution to minimize the embolization area are mandatory for successful and safe outcomes. In general, a selective approach using a microcatheter into the vasa recta, the major bleeding source in the lower bowel, is adopted, and embolization is performed using metallic coils or n-butyl-2-cyanoacrylate. In cases where the bleeding vasa recta cannot be identified or approached, the usefulness of preemptive embolization using imipenem cilastatin (IPM/CS) has recently been reported.