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Metallic Stent Placement in the Palliative Treatment of Malignant Gastric Outlet Obstructions: Primary Gastric Carcinoma Versus Pancreatic Carcinoma

¹ Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 388-1, Poongnap-2dong, Songpa-gu, Seoul 138-736, Korea.
² Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
³ Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.

View larger version (121K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 1 —Photograph shows dualdesign metallic stent (Hercules SP, S&G Biotech): outer partially covered (top), inner bare (middle) stent, and assembled dual stent (bottom).

View larger version (111K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 2A —Stent placement in 66-year-old man with gastric carcinoma. Radiograph obtained during injection of water-soluble nonionic contrast medium through catheter shows stricture in peripyloric region (arrows).

View larger version (111K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 2B —Stent placement in 66-year-old man with gastric carcinoma. Initially, outer partially covered stent (arrowheads) is placed.

View larger version (111K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 2C —Stent placement in 66-year-old man with gastric carcinoma. Upper gastrointestinal radiograph obtained after coaxial placement of inner bare stent shows good flow of contrast medium through stent.

View larger version (116K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 3A —Stent placement in 51-year-old man with pancreatic carcinoma. Radiograph obtained during injection of water-soluble nonionic contrast medium through catheter shows stricture (arrows) in second portion of duodenum.

View larger version (114K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 3B —Stent placement in 51-year-old man with pancreatic carcinoma. Upper gastrointestinal radiograph obtained after placement of dual stent shows good flow of contrast medium through stent.

View larger version (7K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 4A —Results of metallic stent placement. Graph shows overall cumulative stent patency rate in 207 patients.

View larger version (8K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 4B —Results of metallic stent placement. Graph shows stent patency rates in patients with gastric (dotted line) and pancreatic (solid line) carcinoma.

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