“…The observed rate of clinical response that we observed, for both menorrhagia and bulk symptoms, for HydroPearl Microsphere particles was overall similar to other previously studied embolic agents for UAE. These include polyvinyl alcohol with or without gelfoam, polyphosphazene- coated hydrogel microspheres (Embozene, Varian Medical, Palo Alto, CA), tris-acryl gelatin spheres (Embospheres and Embogold, Merit Medical, South Jordan, UT), and gelatin sponge particles/porous gelatin particles (Toda et al, 2016 ; Salehi et al, 2015 ; Stampfl et al, 2011 ; Joffre et al, 2004 ; Lohle et al, 2006 ).…”