Removal of press-through-packs impacted in the upper esophagus using an overtube

Foreign bodies in the upper esophagus should be re-moved as soon as possible to avoid serious complica-tions. However, removals of foreign bodies in the upper esophagus are very difficult, especially if they have sharp edges, such as press-through-packs (PTPs). We expe-rienced four cases of the impacted PTPs in the upper esophagus which was successfully extracted endoscopi-cally with the overtube. Because two edges of PTPs were so firmly impacted in the esophageal wall in all cases, the PTPs were not movable in the upper esophagus. However, after insertion of the overtube, PTPs became movable and were successfully extracted and no serious complications occurred after extraction of PTPs. In one case, insertion of the overtube rapidly expanded the up-per esophagus and PTP progressed to the gastric cavity and it could be extracted with the endoscopic protector hood. The endoscopic removal with the overtube was a simple, safe and effective technique for the removal of the impacted PTPs in upper esophagus.