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Marco Bassi 1 Article
Impact of contrast dye submucosal pre-lifting on cold snare resection of small polyps: an Italian randomized observational trial
Ramona Schiumerini, Paola Baccarini, Adele Fornelli, Davide Allegri, Francesca Lodato, Alessia Gazzola, Pasquale Apolito, Nunzio P. Longo, Anna M. Polifemo, Franca Patrizi, Federica Buonfiglioli, Stefania Ghersi, Marco Bassi, Liza Ceroni, Antonella Ghetti, Giulio Fonti, Vincenzo Cennamo
Received May 8, 2024  Accepted August 7, 2024  Published online September 23, 2024  
DOI: https://doi.org/10.5946/ce.2024.113
AbstractAbstract PubReaderePub
Background
/Aims: Small polyps are the most frequently detected lesions during colonoscopy, with an incomplete resection rate of 6.8% to 15.9%. This study aimed to improve small polyp cold snare resection radicality using submucosal contrast dye pre-lifting (PL+CSP).
Methods
This monocentric, prospective, randomized controlled trial compared the standard cold snare polypectomy technique (PL-CSP) with PL+CSP cold snare resection to evaluate endoscopic and histological complete resection rates, adverse events, procedural times, and polyp retrieval failure rates.
Results
In 143 consecutively enrolled patients, 186 small polyps were detected and randomly assigned following a 1:1 ratio to the PL-CSP (n=97, 51.6%) and PL+CSP (n=90, 48.4%) techniques. Endoscopic (p=0.97) and histologic complete resection rates (p=0.23) did not differ significantly even in univariate analysis. The intraprocedural bleeding rate was significantly higher in the PL+CSP (35.8% vs. 8.3%, p<0.001) group as confirmed by the univariate analysis (p<0.001). The polyps retrieval failure rates were similar (p=0.83). Procedural time was significantly longer for PL+CSP (median time, 75 vs. 45 seconds; p <0.001), without impacting colonoscopy withdrawal time (p=0.215).
Conclusions
PL+CSP for cold snare resection of small polyps did not improve endoscopic and histological complete resection rates and polyp sample retrieval. PL+CSP had higher rates of intraprocedural bleeding and was “time-consuming”.
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