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Comparative efficacy of low volume versus traditional standard volume PEG on bowel preparation before colonoscopy:
Li-Juan Yi1, Xu Tian2,3, Yuan-Ping Pi4
1Department of Nursing, Hunan Traditional Chinese Medical College, Zhuzhou.
Insights
This study updates a meta-analysis comparing low-volume versus standard-volume polyethylene glycol (PEG) for colonoscopy bowel preparation. It aims to provide clearer evidence on the efficacy and safety of lower volume PEG solutions.
Area of Science:
- Gastroenterology
- Clinical Trials
- Evidence-Based Medicine
Background:
- Polyethylene glycol (PEG) is a standard bowel preparation for colonoscopy.
- Previous studies suggest low-volume PEG may improve patient acceptance.
- Limitations in prior meta-analyses necessitate an updated review.
Purpose of the Study:
- To conduct an updated meta-analysis assessing the efficacy of low-volume versus standard-volume PEG for bowel preparation.
- To utilize trial sequential analysis (TSA) for robust statistical evaluation.
- To construct a comprehensive evidence base on PEG bowel preparation volumes.
Main Methods:
- Systematic search of PubMed, EMBASE, and Cochrane Library for randomized controlled trials (RCTs).
- Independent screening, data extraction, and risk of bias assessment by two reviewers.
- Statistical analysis using STATA and TSA software for pooled results and robustness testing.
Main Results:
- The study is a systematic review and meta-analysis, with results to be submitted for publication.
- Specific findings on comparative efficacy and safety are pending full publication.
Conclusions:
- This updated meta-analysis with TSA will provide a more definitive assessment of low-volume vs. standard-volume PEG.
- It aims to enhance the evidence base for optimizing bowel preparation protocols.
- The findings will inform clinical practice regarding PEG bowel preparation for colonoscopy.
Introduction:
Polyethylene glycol (PEG) has been considered as the first recommendation for bowel preparation prior to colonoscopy. A previous meta-analysis suggested that low volume PEG may improve the acceptability of ingesting bowel preparation solution. However, several limitations impaired the power of findings from this published meta-analysis, such as the variation in study design of included trials and adjuvant prescriptions. Moreover, some studies related to this topic have been published recently. And thus, the aim of this updated meta-analysis is to further assess the comparative efficacy of low volume versus standard volume of PEG on bowel preparation before colonoscopy with trial sequential analysis (TSA).
Methods And Analysis:
Systematic searches will be performed to capture any potential randomized controlled trials (RCTs) investigated the comparative efficacy of low volume versus traditional standard volume PEG on bowel preparation prior to colonoscopy in PubMed, EMBASE, and Cochrane Central Register of Controlled Trials. Moreover, we will also manually check the bibliographies of related studies and reviews so as to get additional studies. Two reviewers will independently screen the citation records, extract essential information, and appraise the risk of bias of each RCT in sequence. Finally, we will used the STATA software version 12.0 and TSA software version beta 0.9 to statistically analyze all data and test the robust of each pooled result, respectively.
Results:
We will submit the full-text of systematic review to a peer-review journal for publication.
Conclusion:
This updated systematic review and meta-analysis with TSA will further assess the comparative efficacy and safety of low-volume versus traditional standard volume PEG for bowel preparation prior to colonoscopy. And then, a more comprehensive evidence body on low-volume compared to standard volume PEG in bowel preparation will be constructed.
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