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Comparison of uncovered and covered stents for the treatment of malignant duodenal obstruction caused by pancreaticobiliary cancer

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Abstract

Background

Few clinical studies to date have compared different types of self-expandable metallic stents (SEMS) and their outcomes in patients with pure duodenal obstruction caused by pancreaticobiliary cancer. The aim of this study was to compare the clinical effectiveness and side effects of uncovered and covered SEMS for the palliation of duodenal obstruction caused by pancreaticobiliary cancer.

Methods

We retrospectively analyzed all patients with pancreaticobiliary cancer who underwent upper endoscopy with SEMS placement for malignant duodenal obstruction at the National Cancer Center of Korea between April 2003 and December 2010. The technical and clinical success rates of the procedure, complications, and durations of stent patency and overall survival were evaluated.

Results

We identified 70 patients with a mean age of 51.2 years (range = 39–81 years); of these, 46 (65.7 %) had pancreatic cancer, 9 (12.9 %) had bile duct cancer, 11 (15.7 %) had gallbladder cancer, and 4 (5.7 %) had cancer of the ampulla of Vater. Twenty-four patients (34.3 %) received covered SEMSs and 46 (65.7 %) received uncovered SEMSs. Technical and clinical success rates were similar for the covered and uncovered stent groups. The complication rate was higher in the covered than in the uncovered group (62.5 vs. 34.8 %, P = 0.025), due primarily to a significantly higher stent migration rate (20.8 vs. 0 %, P = 0.004). Perforation as a late complication occurred in four patients, two in each group (8.3 vs. 4.3 %, P = 0.425). Stent patency tended to be shorter for covered than for uncovered duodenal stents (13.7 ± 8.6 weeks vs. not reached, P = 0.069).

Conclusions

The use of uncovered stents may be a preferred option for duodenal obstruction secondary to pancreaticobiliary malignancies, since they were effective in preventing stent migration and tended to have longer patency than covered stents. Careful attention should be paid to signs and symptoms of perforation during follow-up.

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Acknowledgments

No external grant or support was received for this project.

Disclosures

S. M. Woo, D. H. Kim, W. J. Lee, K. W. Park, S.-J. Park, S.-S. Han, T. H. Kim, Y. H. Koh, H. B. Kim, and E. K. Hong have no conflicts of interest or financial ties to disclose.

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Authors and Affiliations

  1. Center for Liver Cancer, National Cancer Center, 111 Junbalsan-ro, Ilsandong-gu, Goyang, Gyeonggi, 410-769, South Korea

    Sang Myung Woo, Dong Hwan Kim, Woo Jin Lee, Kyung Woo Park, Sang-Jae Park, Sung-Sik Han, Tae Hyun Kim, Young Hwan Koh, Hyun Bum Kim & Eun Kyung Hong

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  1. Sang Myung Woo
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Correspondence to Woo Jin Lee.

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Woo, S.M., Kim, D.H., Lee, W.J. et al. Comparison of uncovered and covered stents for the treatment of malignant duodenal obstruction caused by pancreaticobiliary cancer. Surg Endosc 27, 2031–2039 (2013). https://doi.org/10.1007/s00464-012-2705-6

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  • DOI: https://doi.org/10.1007/s00464-012-2705-6

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