An internally covered (lined) self-expanding metal esophageal stent: tissue response in a porcine model.

BACKGROUND Self-expandable metal stents (SEMS) palliate malignant dysphagia but may embed in tissue, produce granulation tissue, and prevent removal. OBJECTIVE Our purpose was to evaluate in a porcine model the tissue response induced by a new esophageal SEMS completely coated internally rather than externally. DESIGN Eight Yucatan pigs were studied… CONTINUE READING