Comparison of Pain After Uterine Artery Embolization Using Gelatin Microsphere or Tris-acryl Gelatin Microsphere

Gelatin microsphere (Nexsphere™) is a yellow powder, made of 100% hydrophilic gelatin. It is used to make a suspension by mixing a contrast agent and physiological saline. The indications for gelatin microsphere are hepatic artery chemoembolization, uterine artery embolization, prostate artery embolization, and treatment of various hemorrhagic diseases. It physically embolizes blood vessels and is decomposed within 4-8 weeks after intravascular injection.

Tris-acryl gelatin microspheres (Embosphere Microspheres) are biocompatible and nonresorbable with cell adhesion properties for complete and durable mechanical occlusion.