Transcatheter Arterial Occlusion in the Management of Rectosigmoidal Bleeding

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Abstract
Transcatheter arterial occlusion was performed in 5 patients with recurrent rectosigmoidal bleeding. Four had malignant neoplasms, and the 5th, an arteriovenous malformation. The superior hemorrhoidal artery was embolized in 2 patients, the inferior mesenteric artery in 2 and the left internal iliac artery in 1 patient. In 4 patients, immediate and complete control of rectal bleeding was achieved and gradual control was accomplished in the 5th patient. Left lower quadrant pain and fever developed in 3 patients. The possibility of rectosigmoidal bleeding from the internal iliac artery is stressed.