Malignant Colorectal Obstruction Treated by Means of Self-expanding Metallic Stents: Effectiveness before Surgery and in Palliation

Abstract

Management of colorectal obstruction by using metallic stents was effective and safe, although colonic perforation is a potential complication. In cases of palliation, the method may obviate palliative colostomy.

Comparison of uncovered stent with covered stent for treatment of malignant colorectal obstruction

“…[15][16][17] We used 0.035-inch Teflon biliary guidewire (Zebra), and our technical success rate was comparable with recent published reports. [15][16][17] We compared the technical success, clinical efficacy, and complication rate according to stent types, covered and uncovered. Technical and clinical success rates were not significantly different in the 2 groups.…”

“…[14][15][16][17] Initial studies reported a success rate of about 80%. The common cause of insertion failure was the inability of the guidewire to traverse the stricture and stiffness of stent delivery systems.…”

“…The common cause of insertion failure was the inability of the guidewire to traverse the stricture and stiffness of stent delivery systems. 14,15 Improvement of devices such as hydrophilic elastic guidewire and a reformed stent delivery system increased the technical success rate. [15][16][17] We used 0.035-inch Teflon biliary guidewire (Zebra), and our technical success rate was comparable with recent published reports.…”

“…14,15 Improvement of devices such as hydrophilic elastic guidewire and a reformed stent delivery system increased the technical success rate. [15][16][17] We used 0.035-inch Teflon biliary guidewire (Zebra), and our technical success rate was comparable with recent published reports. [15][16][17] We compared the technical success, clinical efficacy, and complication rate according to stent types, covered and uncovered.…”

Clinical Application of Self-Expandable Metallic Stent for Treatment of Colorectal Obstruction Caused by Extrinsic Invasive Tumors

“…[19][20][21][22][23][24] Whereas the most common etiology of technical failure was generally the inability to pass the guidewire through the obstruction site in colorectal cancer, 16 the most common cause of technical failure in our series was colonic immobilization. The etiologies of immobilization were thought to be adhesions around tissue caused by the previous surgeries and peritoneal seedings, which might make negotiation of endoscope more difficult around sharply angulated, tortuous, and fixed intestinal segments.…”