Influence of surface texture and charge on the biocompatibility of endovascular stents.

Stent surface texture was the most important factor determining biocompatibility of coated Palmaz-Schatz stents in this study. In contrast to suggestions derived from in-vitro studies, the charge of stents does not seem to play a major role with respect to stent thrombogenicity. Low stent charge correlates with an increased neointima formation.