Digestive Diseases and Sciences

, Volume 55, Issue 3, pp 668–674 | Cite as

Clinical Outcomes of Self-Expandable Metal Stent and Prognostic Factors for Stent Patency in Gastric Outlet Obstruction Caused by Gastric Cancer

  • Yu Kyung Cho
  • Sang Woo Kim
  • Won Haeng Hur
  • Kwan Woo Nam
  • Jae Hyuck Chang
  • Jae Myung Park
  • In Seok Lee
  • Myung-Gyu Choi
  • In-Sik Chung
Original Article


The aim of this study was to assess clinical outcomes of endoscopic stenting for a gastric outlet obstruction caused by gastric cancer and the prognostic factors for stent patency by reviewing medical records. Eighty-one stents were inserted into 75 patients (48 men, average age 66 years). The technical and clinical success rates were 98 and 87%, respectively. The median stent patency was 55 days (95% CI 40–70 days). The median survival was 79 days (95% CI 58–123 days). Stent reobstruction caused by tumor ingrowth or overgrowth occurred in 25 cases (31%). Cox multivariate regression analysis showed that covered stents (odds ratio 0.29, 95% CI 0.11–0.76; P = 0.01) and chemotherapy after stent placement (odds ratio 0.34, 95% CI 0.13–0.91; P = 0.03) were significant prognostic factors for stent patency. This study found that endoscopic stenting is a safe and effective palliation treatment for malignant gastric outlet obstruction and a covered stent and chemotherapy are significant prognostic factors for stent patency.


Gastric cancer Gastric outlet obstruction Self-expandable metal stent Patency 


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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Yu Kyung Cho
    • 1
  • Sang Woo Kim
    • 1
  • Won Haeng Hur
    • 1
  • Kwan Woo Nam
    • 1
  • Jae Hyuck Chang
    • 1
  • Jae Myung Park
    • 1
  • In Seok Lee
    • 1
  • Myung-Gyu Choi
    • 1
  • In-Sik Chung
    • 1
  1. 1.Division of Gastroenterology, Department of Internal MedicineThe Catholic UniversitySeoulKorea

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