Percutaneous catheter drainage versus percutaneous needle aspiration for liver abscess: a systematic review, meta-analysis and trial sequential analysis
- PMID: 37518084
- PMCID: PMC10387661
- DOI: 10.1136/bmjopen-2023-072736
Percutaneous catheter drainage versus percutaneous needle aspiration for liver abscess: a systematic review, meta-analysis and trial sequential analysis
Abstract
Objective: To compare the effectiveness and safety of percutaneous catheter drainage (PCD) against percutaneous needle aspiration (PNA) for liver abscess.
Design: Systematic review, meta-analysis and trial sequential analysis.
Data sources: PubMed, Web of Science, Cochrane Library, Embase, Airiti Library and ClinicalTrials.gov were searched from their inception up to 16 March 2022.
Eligibility criteria: Randomised controlled trials that compared PCD to PNA for liver abscess were considered eligible, without restriction on language.
Data extraction and synthesis: Primary outcome was treatment success rate. Depending on heterogeneity, either a fixed-effects model or a random-effects model was used to derive overall estimates. Review Manager V.5.3 software was used for meta-analysis. Trial sequential analysis was performed using the Trial Sequential Analysis software. Certainty of evidence was evaluated using the Grading of Recommendations, Assessment, Development and Evaluation system.
Results: Ten trials totalling 1287 individuals were included. Pooled analysis revealed that PCD, when compared with PNA, enhanced treatment success rate (risk ratio 1.16, 95% CI 1.07 to 1.25). Trial sequential analysis demonstrated this robust finding with required information size attained. For large abscesses, subgroup analysis favoured PCD (test of subgroup difference, p<0.001). In comparison to PNA, pooled analysis indicated a significant benefit of PCD on time to achieve clinical improvement or complete clinical relief (mean differences (MD) -2.53 days; 95% CI -3.54 to -1.52) in six studies with 1000 patients; time to achieve a 50% reduction in abscess size (MD -2.49 days; 95% CI -3.59 to -1.38) in five studies with 772 patients; and duration of intravenous antibiotic use (MD -4.04 days, 95% CI -5.99 to -2.10) in four studies with 763 patients. In-hospital mortality and complications were not different.
Conclusion: In patients with liver abscess, ultrasound-guided PCD raises the treatment success rate by 136 in 1000 patients, improves clinical outcomes by 3 days and reduces the need for intravenous antibiotics by 4 days.
Prospero registration number: CRD42022316540.
Keywords: public health; systematic review.
© Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.
Conflict of interest statement
Competing interests: None declared.
Figures
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