Digestive Diseases and Sciences

, Volume 53, Issue 4, pp 938–945 | Cite as

Clinical Outcomes and Patency of Self-expanding Metal Stents in Patients with Malignant Upper Gastrointestinal Obstruction

  • Jong Pil Im
  • Jung Mook Kang
  • Sang Gyun Kim
  • Joo Sung Kim
  • Hyun Chae Jung
  • In Sung Song
Original Paper


This study was performed to evaluate clinical outcomes and factors associated with patency of self-expanding metal stents (SEMS) in patients with malignant upper gastrointestinal (UGI) obstruction. In 83 patients with malignant UGI obstruction, 118 SEMS placements were performed. Obstruction sites were esophagus/gastro-esophageal junction (GEJ) and gastric outlet (GO) in 41 and 42 patients, respectively. Technical success was achieved in 99.2% and clinical success in 90.5%, with no procedure-related complications. Re-obstruction and migration occurred in 38.1% during a mean follow-up of 137 days; both occurred significantly more often with GO than esophageal/GEJ obstruction (49.2% vs 23.9%). Patency rates of esophageal/GEJ obstruction were 93.5, 78.1 and 67.0% at 30, 90 and 180 days, respectively, and were significantly higher than those of GO obstruction—71.7, 51.8 and 32.5%. Palliative chemotherapy or radiation therapy was not associated with stent patency. Endoscopic SEMS placement is a safe and effective palliative treatment for malignant UGI obstruction, and complications or stent patency differed according to obstruction site.


Esophageal cancer Gastric cancer Malignant obstruction Self-expanding metal stents Patency 


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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Jong Pil Im
    • 1
  • Jung Mook Kang
    • 1
  • Sang Gyun Kim
    • 1
  • Joo Sung Kim
    • 1
  • Hyun Chae Jung
    • 1
  • In Sung Song
    • 1
  1. 1.Department of Internal Medicine and Liver Research InstituteSeoul National University College of MedicineSeoulRepublic of Korea

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