A New Biocompatible Release Material Based on Branched Polyvinyl Alcohol

The antiadhesive properties and biocompatibility of porous and nonporous films based on branched polyvinyl alcohol were evaluated. A nonporous film of branched polyvinyl alcohol has been shown to preserve the intestinal epithelium and cause only slight inflammation and edema. On the contrary, implantation of a porous film induced fibrin formation and severe inflammation and ensured only focal preservation of the intestinal epithelium.