“…Some studies of coating technologies for esophageal stents are presently available for laboratory and clinical applications. Guo et al reported that ethylene-vinyl acetate (EVA) film containing 5-fluorouracil (5-FU) was coated and agglutinated on esophageal stent by hot-pressing [13,14], which could release the 5-FU in a sustained pattern for a prolonged time, achieving high 5-FU bioavailability near the site of action, and thus alleviating restenosis. Jeon et al coated paclitaxel-silicone on the metal esophageal stents through casting film, and animal results showed very little tissue reaction and hyperplasia [1].…”