Malignant Gastric Outlet Obstructions: Treatment by Means of Coaxial Placement of Uncovered and Covered Expandable Nitinol Stents

Self-expandable metallic stents for palliation of patients with malignant gastric outlet obstruction caused by stomach cancer

“…When we had difficulties performing the procedure, we modified the stenting technique, including using a more hydrophilic Terumo guidewire, stiffer guidewire, or a therapeutic duodenoscope; these modifications helped us overcome difficulties and achieve successful stenting. In our study, enteral stent placement allowed 81.1% of patients to resume an oral diet, an outcome similar to that reported in other studies [11,12,[14][15][16] . The complications related to stent insertion in the present study are less than those noted in previous studies [12][13][14] .…”

Biliary Stent Placement for the Management of Acute Obstructive Jaundice after Uncovered Gastroduodenal Stent Placement

“…Therefore, biliary obstruction after placement of a gastroduodenal stent has been found to occur when a covered stent is placed over the papilla (1, 2, 9). Previous studies (2,8) recommended that an uncovered stent should be used or biliary decompression should…”

“…Placement of a gastroduodenal stent is an important and effective palliative treatment in patients with unresectable gastroduodenal obstruction (1,2). The incidence of complications from gastroduodenal stenting ranges from 17% to 25% (3,4).…”

Malignant Gastric Outlet Obstructions: Treatment with Self-Expandable Metallic Stents

“…19 Different types of covering materials have been utilized to cover expandable metallic stents, including polyurethane, silicone rubber, and nylon. 2,6,16,20,21 Disruption of the covering membrane may lead to tumor ingrowth, 20 with polyurethane membranes in the gastroduodenal area being particularly susceptible to chemical degradation after exposure to acidic gastric fluid, bile salts, and certain hydrolytic enzymes in pancreatic secretions.…”