“…Although the risk of colonic infarction after embolization is higher than in gastric and small bowel bleeding – because of the lack of an overlapping arterial blood supply in the colonic vasculature – the development of selective microcatheters and new embolization agents, such as microcoils and polyvinyl alcohol particles, as in these three cases reported herein, allows embolization of smaller vessels, reducing the risk of colonic infarction [6]. Thus, selective transcatheter embolization represents a safe, effective and widely employed alternative to surgery in endoscopically refractory lower gastrointestinal bleeding [6–8]. Management of this potentially life-threatening complication was decided in agreement with gastroenterologists, surgeons, radiologists, and patients.…”