Dual-design expandable colorectal stent for malignant colorectal obstruction: comparison of flared ends and bent ends.

Abstract

OBJECTIVE:

The purpose of this study was to compare, focusing on colonic perforation and stent migration, the clinical safety and efficacy of dual-design expandable colorectal stents with flared ends with those of stents with bent ends in the treatment of patients with malignant colorectal obstruction.

SUBJECTS AND METHODS:

A total of 122 patients with malignant colorectal obstruction underwent implantation of dual-design stents with flared (n = 69) or bent (n = 53) ends.

RESULTS:

Stent placement was technically successful in 116 of 122 patients (95.1%), 65 of 69 patients (94.2%) with flared-end stents and 51 of 53 patients (96.2%) with bent-end stents (p > 0.05). Clinical success was achieved within 2 days in 61 of 65 patients (93.8%) with bent-end stents and in 46 of 51 patients (90.2%) with flared-end stents (p > 0.05). Complications included seven cases of colonic perforation (6%), seven cases of stent migration (6%), three cases of tumor overgrowth (2.6%), four cases of severe rectal pain (3.4%), and four cases of bleeding (3.4%). There were no significant differences between the rates of colonic perforation and stent migration in the two groups (6.2% vs 5.9%), and the overall complication rates were similar (p > 0.05).

CONCLUSION:

Dual-design expandable colorectal stents with flared ends and those with bent ends are equally safe and effective, having similar perforation and migration rates.

• Authors: Jin Hyoung Kim, Ho-Young Song, Yong-Dong Li, Ji Hoon Shin, Jung-Hoon Park, Chang-Sik Yu, Jin Cheon Kim
• Journal: AJR. American journal of roentgenology (AJR Am J Roentgenol) Vol. 193 Issue 1 Pg. 248-54 (Jul 2009) ISSN: 1546-3141 [Electronic] United States
• PMID: 19542421 (Publication Type: Controlled Clinical Trial, Journal Article)

Topics

• Colorectal Neoplasms (complications, surgery)
• Equipment Design
• Equipment Failure Analysis
• Female
• Humans
• Intestinal Obstruction (etiology, surgery)
• Male
• Middle Aged
• Stents
• Treatment Outcome