Winged Partially Covered Self-Expandable Metal Stent to Prevent Distal Migration in Malignant Gastric Outlet Obstruction

Digestive Diseases and Sciences
Young Kwon ChoiHwoon-Yong Jung

Abstract

Through-the-scope implantation of self-expandable metal stents can be used for the palliation of malignant gastric outlet obstruction. Although covered stents were developed to prevent tumor ingrowth, often seen with uncovered stents, migration is still a major problem. Especially, surgical treatment is required for some patients if distal migration occurs. To evaluate the usefulness of the newly designed winged stent that was developed to prevent distal stent migration. This was a single-center, single-arm, retrospective study. A total of 63 inoperable cancer patients with symptomatic gastric outlet obstruction were reviewed to evaluate the safety and efficacy of a newly designed partially covered self-expandable metal stent with star-shaped wing flaps at the proximal end to reduce distal stent migration. Technical and clinical successes were achieved in 100% and 87.3% of patients, respectively. The gastric outlet obstruction scoring system score significantly improved after stent placement (from median 1 to 2, P < 0.001). The median duration of stent patency was 147 days (interquartile range 76-201), and median duration of overall survival was 176 days (interquartile range 79-325). Stent migration was observed in seven patien...Continue Reading

References

Jan 26, 2002·The American Journal of Gastroenterology·Douglas G Adler, Todd H Baron
Mar 5, 2002·Journal of Vascular and Interventional Radiology : JVIR·Gyoo-Sik JungYoung Duk Cho
Oct 30, 2004·Scandinavian Journal of Gastroenterology·G H KimU S Yang
Jun 15, 2007·BMC Gastroenterology·Suzanne M JeurninkPeter D Siersema
Jul 24, 2008·Journal of Gastrointestinal Surgery : Official Journal of the Society for Surgery of the Alimentary Tract·Melissa S PhillipsMichel Kahaleh
Jun 9, 2009·European Journal of Radiology·Carmel G CroninJoseph M Murphy
Feb 11, 2015·World Journal of Gastroenterology : WJG·Ji Won KimSu Hwan Kim
Nov 26, 2015·World Journal of Gastroenterology : WJG·Emo E van HalsemaJeanin E van Hooft

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