Association between embolic agent choice and complications after transcatheter arterial embolization for colonic diverticular bleeding

Question Transcatheter arterial embolization (TAE) is one of the mainstay treatments for colonic diverticular bleeding, but outcome differences among embolic agents remain unclear. Findings Gelatin sponge particles increased both early rebleeding and intestinal ischemic risks, while coils reduced intestinal ischemic risk and n‑butyl‑2‑cyanoacrylate reduced early rebleeding risk. Clinical relevance Embolic material selection should be individualized for TAE in colonic diverticular bleeding. Coils may be safer in ischemia-prone patients, while n‑butyl‑2‑cyanoacrylate may be suitable for those at high risk of rebleeding.