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Gastroenterology Research and Practice
Volume 2014, Article ID 309797, 7 pages
http://dx.doi.org/10.1155/2014/309797
Clinical Study

A Multicenter Randomized Controlled Trial of Malignant Gastric Outlet Obstruction: Tailored Partially Covered Stents (Placed Fluoroscopically) versus Standard Uncovered Stents (Placed Endoscopically)

1Department of Gastroenterology, The First People’s Hospital of Yuhang District, No. 369 Yingbing Road, Hangzhou 311100, China
2Department of Gastroenterology, The First Affiliated Hospital of Zhejiang University, Hangzhou 310003, China
3Department of Gastroenterology, The First Affiliated Hospital of Henan College of Traditional Chinese Medicine, Zhengzhou 450000, China

Received 24 July 2014; Revised 24 October 2014; Accepted 30 November 2014; Published 24 December 2014

Academic Editor: Michel Kahaleh

Copyright © 2014 Ding Shi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The aim of our study is to compare the efficacy and safety of “outlet-shape” tailored stents with standard stents for the management of distal gastric cancer causing gastric outlet obstructions (GOOs) with varying gastric cavity shapes and sizes. To determine the shape and size of the GOOs, stomach opacifications were performed using contrast media before stenting. Two basic shapes of the residual cavity of the proximal GOO were observed: cup shaped or approximately cup shaped and funnel shaped or approximately funnel shaped. Other shapes were not found. In the GOO tailored group, the size and shape of the proximal ends of the tailored stent were suited for the residual cavity of the proximal GOO. The tailored stents included large cup-shaped stents and large funnel-shaped stents. GOO tailored covered stents led to less restenosis and reintervention rates compared to standard uncovered stents but with the same survival.