Safety and Efficacy of Powered Non-Thermal Endoscopic Resection Device for Removal of Colonic Polyps: A Systematic Review and Meta-Analysis

Zohaib Ahmed, Daryl Ramai, Nooraldin Merza, Joyce Badal, Umair Iqbal, Syeda F. Arif, Alsadiq Al-Hillan, Tony Varughese, Wade Lee-Smith, Ali Nawras, Yaseen Alastal, Harshit S. Khara, Bradley D. Confer, David L. Diehl, Douglas G. Adler

Abstract


Background: Endoscopic mucosal resection is a frequently employed method for removing colonic polyps. Nonetheless, the recurrence of these polyps over a healed submucosal base can complicate the extraction of leftover lesions through standard procedures. EndoRotor®, a non-thermal device specifically designed for endoscopic mucosal resection, has recently been assessed for its utility in removing colonic polyps, non-dysplastic Barrett’s esophagus, and pancreatic necrosis. We conducted a systematic review and meta-analysis to ascertain the safety and efficacy of EndoRotor® in resecting scared or recurrence colonic polyps.

Methods: We conducted an exhaustive review of existing literature using databases such as Medline, Embase, Web of Science, and the Cochrane Library until January 2023. Our aim was to find all studies that assessed the safety of non-thermal endoscopic resection devices in removing colonic polyps. The primary outcome we focused on was the rate of technical success. Secondary outcomes that we considered included the frequency of remaining lesions and instances of adverse events. To analyze these data, we used comprehensive meta-analysis software.

Results: Our analysis incorporated three studies comprising 54 patients who underwent resection of 60 lesions. The combined technical success rate was 93.9% (95% confidence interval (CI): 77.7-98.6%, I2 = 25.5%). In patients who had another endoscopic examination, 20 were found to have a residual lesion. After the initial session, the combined rate of remaining lesions was 39.8% (95% CI: 15.3-70.8%, I2 = 74.5%). There were eight occurrences of intraoperative bleeding and four instances of bleeding post-procedure. The combined rate of intraoperative bleeding was 13.2% (95% CI: 6.7-24.3%, I2 = 0%), and post-procedure bleeding stood at 8.5% (95% CI: 3.4-19.8%, I2 = 0%). Only one major bleeding event was recorded, and no cases of perforation were reported.

Conclusion: Our research indicates that the EndoRotor® effectively removes scarred colonic polyps, though the rate of remaining lesions is significant, potentially necessitating several sessions for a thorough removal. There is a need for broader prospective studies, mainly randomized controlled trials, to further assess EndoRotor®’s efficiency and safety in eliminating colonic polyps.




Gastroenterol Res. 2023;16(5):254-261
doi: https://doi.org/10.14740/gr1638

Keywords


Colonic polyps; Efficiency; Safety; Endoscopic mucosal resection; Meta-analysis

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