Abstract
Background
Outcomes of partially covered self-expandable metal stents (SEMS) as an additional stent after recurrent duodenal obstruction (RDO) have not been elucidated. In this study, we compared outcomes of partially covered and uncovered SEMS placement after RDO in patients with malignant duodenal obstruction and explored factors affecting re-recurrent obstruction and overall survival in this population.
Methods
We conducted a retrospective study of patients undergoing SEMS placement for RDO at a cancer institute in Japan from July 2014 to June 2021. Clinical variables and outcomes of patients undergoing partially covered and uncovered SEMS placement were compared.
Results
Sixty-one patients underwent SEMS placement after RDO, for which the COMVI stent was used in 38 cases and uncovered stents were used in 23 cases. Stent ingrowth was the most common cause of RDO (51.4%). Stent migration only occurred after partially covered stent placement (20% vs. 0%, p = 0.018). Choice of SEMS had no impact on time to re-RDO (median 2.8 vs. 4.1 months, p = 0.776) or overall survival (median 2.6 vs. 2.4 months, p = 0.703). Median overall survival was longer in patients receiving chemotherapy after second stenting (4.6 vs. 1.8 months, p < 0.001) and shorter in those with early RDO, regardless of the SEMS used. Use of the partially covered stent had no impact on survival or time to RDO.
Conclusions
While outcomes after partially covered SEMS placement for RDO were not significantly different from uncovered SEMS, migration remains a concern when they are used as a second stent. Chemotherapy after second stenting was associated with longer overall survival but not with longer time to re-RDO.
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Drs. Takeshi Okamoto, Takashi Sasaki, Toshiyuki Yoshio, Chinatsu Mori, Takafumi Mie, Takaaki Furukawa, Yuto Yamada, Tsuyoshi Takeda, Akiyoshi Kasuga, Masato Matsuyama, Masato Ozaka, Junko Fujisaki, and Naoki Sasahira have no conflicts of interest or financial ties to disclose.
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Okamoto, T., Sasaki, T., Yoshio, T. et al. Outcomes after partially covered self-expandable metal stent placement for recurrent duodenal obstruction. Surg Endosc 37, 319–328 (2023). https://doi.org/10.1007/s00464-022-09519-w
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DOI: https://doi.org/10.1007/s00464-022-09519-w