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Transforming outcomes: the pivotal role of self-expanding metal stents in right- and left-sided malignant colorectal obstructions-bridge to surgery: a comprehensive review and meta-analysis
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Sheza Malik, Priyadarshini Loganathan, Hajra Khan, Abul Hasan Shadali, Pradeep Yarra, Saurabh Chandan, Babu P. Mohan, Douglas G. Adler, Shivangi Kothari
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Received May 10, 2024 Accepted July 10, 2024 Published online September 5, 2024
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DOI: https://doi.org/10.5946/ce.2024.120
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Abstract
PubReaderePub
- Background
/Aims: Self-expanding metallic stents (SEMS) are an alternative to emergency surgery (ES) for malignant colorectal obstruction. This study aimed to compare surgical outcomes between SEMS as a bridge to surgery (BTS) and ES in patients with malignant colorectal obstruction.
Methods A comprehensive database search was conducted until October 2023 to compare outcomes between SEMS as BTS and ES. A subgroup analysis of results by malignancy site was performed.
Results We analyzed 57 studies, including 7,223 patients over a mean duration of 35.4 months. SEMS as BTS showed clinical and technical success rates of 88.0% (95% confidence interval [CI], 86.1%–90.1%; I2=68%) and 91.6% (95% CI, 89.7%–93.7%; I2=66%), respectively. SEMS as BTS revealed reduced postoperative adverse events (odds ratio [OR], 0.51; 95% CI, 0.41–0.63; I2=70%; p<0.001) and 30-day mortality (OR, 0.52; 95% CI, 0.37–0.72; I2=10%; p<0.001) compared to ES. Subgroup analysis showed postoperative mortality of 5% and 1.5% for left- and right-sided malignancies, respectively. Adverse events were 15% and 33% for the right and left colon, respectively.
Conclusions SEMS as BTS demonstrated higher success rates, fewer postoperative adverse events, and a reduced 30-day mortality rate than ES, supporting its use as the preferred initial intervention for right- and left-sided obstructions and indicating broader clinical adoption.
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