Small bowel perforation due to a migrated esophageal stent: Report of a rare case and review of the literature

INTRODUCTION: Endoscopic esophageal stent placement is used to treat benign strictures, esophageal perforations, fistulas and for palliative therapy of esophageal cancer. Although stent placement is safe and effective method, complications are increasing the morbidity and mortality rate. We aimed to present a patient with small bowel perforation as a consequence of migrated esophageal stent. PRESENTATION OF CASE: A 77-years-old woman was admitted with complaints of abdominal pain, abdominal distension, and vomiting for two days. Her past medical history included a pancreaticoduodenectomy for pancreatic tumor 11 years ago, a partial esophagectomy for distal esophageal cancer 6 months ago and an esophageal stent placement for esophageal anastomotic stricture 2 months ago. On abdominal examination, there was generalized tenderness with rebound. Computed tomography showed the stent had migrated. Laparotomy revealed a perforation localized in the ileum due to the migrated esophageal stent. About 5 cm perforated part of gut resected and anastomosis was done. The patient was exitus fifty-five days after operation due to sepsis. DISCUSSION: Small bowel perforation is a rare but serious complication of esophageal stent migration. Resection of the esophagogastric junction facilitates the migration of the stent. The lumen of stent is often allow to the passage in the gut, so it is troublesome to find out the dislocation in an early period to avoid undesired results. In our case, resection of the esophagogastric junction was facilitated the migration of the stent and late onset of the symptoms delayed the diagnosis. CONCLUSION: Patients with esophageal stent have to follow up frequently to preclude delayed complications. Additional technical procedures are needed for the prevention of stent migration.