Stent migration after stent-in-stent technique using a biodegradable stent

Self-expanding metal stents (SEMS) seem to be the optimal choice for benign esophageal disorders, especially those not associated with a stricture, such as anastomotic leaks, iatrogenic perforations, and fistulas. On the other hand stent embedding can be an important limitation of SEMS placement, because this precludes safe stent removal [1]. In fact, in the literature there are only a few case series reporting the stent-in-stent technique using SEMS to remove embedded stents (14 – 189 days from the placement of the first stent) [2] [3].