Journal
DIGESTIVE AND LIVER DISEASE
Volume 55, Issue 8, Pages 1010-1018Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.dld.2022.11.010
Keywords
Polyethylene glycol; PEG-ASC; Bowel preparation; Colonoscopy; ADR; Safety
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This meta-analysis evaluated the effectiveness and safety of 1-L PEG-ASC compared to other bowel preparations for colonoscopy. The results showed that 1-L PEG-ASC had higher cleansing success and right-colon high-quality cleansing rates compared to other preparations, with similar adenoma detection rates. However, the incidence of adverse events was higher with 1-L PEG-ASC, although no serious adverse events or deaths occurred.
Background and aims: A 1-L polyethylene glycol plus ascorbate (PEG-ASC) preparation has been recently developed to improve patients' experience in colonoscopy. This meta-analysis aimed to evaluate the effectiveness and safety of 1-L PEG-ASC compared with those of other bowel preparations for colonoscopy.Methods: MEDLINE, Embase, Scopus, and the Cochrane Library were systematically searched for randomized controlled trials comparing 1-L PEG-ASC with other bowel preparations published through July 2022. A random-effects model was applied for pooling the results; heterogeneity was expressed as I 2 .Results: Nine studies met the inclusion criteria and were included. The analysis showed significantly higher cleansing success (CS) (OR = 1.50; 95% CI = 1.25-1.81; p < 0.01, I 2 = 0%) and right-colon highquality cleansing (HQC) (OR = 1.67; 95% CI = 1.21-2.31; p < 0.01, I 2 = 43%) with 1-L PEG-ASC compared to the other preparations. The pooled estimate of the adenoma detection rate (ADR) did not significantly differ between the two groups either in the overall (OR = 1.02; 95% CI = 0.87-1.20; p = 0.79, I 2 = 0%) or split-dosing regimen subgroup analysis (OR = 0.99; 95% CI = 0.84-1.18; p = 0.94, I 2 = 0%). A significantly higher pooled estimate of the number of patients with adverse events (AEs) (OR = 1.51; 95% CI = 1.23-1.84; p < 0.01, I 2 = 0%) and incidence of AEs (IRR = 1.33; 95% CI = 1.11-1.58; p < 0.01, I 2 = 71%) was observed with 1-L PEG-ASC than with the other preparations. No serious AEs or deaths occurred.Conclusions: Compared to other preparations, 1-L PEG-ASC yielded higher overall CS, higher right-colon HQC rates, and similar ADR. The number of patients with AEs and incidence of the total AEs were significantly higher with 1-L PEG-ASC in the absence of serious AEs.& COPY; 2022 Editrice Gastroenterologica Italiana S.r.l. Published by Elsevier Ltd. All rights reserved.
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