Dataset Information

Observational versus antibiotic treatment for uncomplicated diverticulitis: an individual-patient data meta-analysis.

ABSTRACT:

Background

Two RCTs (AVOD and DIABOLO) demonstrated no difference in recovery or adverse outcomes when antibiotics for acute uncomplicated diverticulitis were omitted. Both trials showed non-significantly higher rates of complicated diverticulitis and surgery in the non-antibiotic groups. This meta-analysis of individual-patient data aimed to explore adverse outcomes and identify patients at risk who may benefit from antibiotic treatment.

Methods

Individual-patient data from those with uncomplicated diverticulitis from two RCTs were pooled. Risk factors for adverse outcomes and the effect of observational management were assessed using logistic regression analyses. P?ResultsIn total, 545 patients in the observational group and 564 in the antibiotics group were included. No statistical differences were found in 1-year follow-up rates of ongoing diverticulitis (7·2 versus 5·0 per cent in observation versus antibiotics groups respectively; P?=?0·062), recurrent diverticulitis (8·6 versus 9·6 per cent; P?=?0·610), complicated diverticulitis (4·0 versus 2·1 per cent; P?=?0·079) and sigmoid resection (5·0 versus 2·5 per cent; P?=?0·214). An initial pain score greater than 7, white blood cell count exceeding 13·5?×?10⁹ /l and previous diverticulitis at presentation were risk factors for adverse outcomes. Antibiotic treatment did not prevent adverse outcomes in patients at high risk of adverse events.

Conclusion

Observational management of acute uncomplicated diverticulitis is safe. Some statistical uncertainty remains, depending on the thresholds of clinical relevance, owing to small differences, but no subgroup that would benefit from antibiotic treatment was apparent.

SUBMITTER: van Dijk ST

PROVIDER: S-EPMC7318319 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Observational versus antibiotic treatment for uncomplicated diverticulitis: an individual-patient data meta-analysis.

van Dijk S T ST Chabok A A Dijkgraaf M G MG Boermeester M A MA Smedh K K

The British journal of surgery 20200219 8

<h4>Background</h4>Two RCTs (AVOD and DIABOLO) demonstrated no difference in recovery or adverse outcomes when antibiotics for acute uncomplicated diverticulitis were omitted. Both trials showed non-significantly higher rates of complicated diverticulitis and surgery in the non-antibiotic groups. This meta-analysis of individual-patient data aimed to explore adverse outcomes and identify patients at risk who may benefit from antibiotic treatment.<h4>Methods</h4>Individual-patient data from those ...[more]

PMID: 32073652

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Project description:IntroductionUncomplicated urinary tract infection (UTI) in women is a common reason to present in general practice and is usually treated with antibiotics to reduce symptom severity and duration. Results of recent clinical trials indicate that non-antibiotic treatment approaches can also be effective. However, it remains unclear which patients would benefit from antibiotic treatment and which can effectively and safely be treated without antibiotics. This systematic review and meta-analysis aims to estimate the effect of treatment strategies to reduce antibiotic use in comparison with immediate antibiotic treatment and to identify prognostic factors and moderators of treatment effects. A further aim is to identify subgroups of patients benefiting from a specific therapy.Methods and analysisA systematic literature search will be performed to identify randomised controlled trials which investigated the effect of treatment strategies to reduce antibiotic use in female adults with uncomplicated UTI compared with immediate antibiotic treatment. Therefore, the primary outcome of the meta-analysis is incomplete recovery. Anonymised individual patient data (IPD) will be collected. Aggregate data will be used for pairwise comparisons of treatment strategies using meta-analysis models with random effects accounting for potential between-study heterogeneity. Potential effect moderators will be explored in meta-regressions. For IPD, generalised linear mixed models will be used, which may be adjusted for baseline characteristics. Interactions of baseline variables with treatment effects will be explored. These models will be used to assess direct comparisons of treatment, but might be extended to networks.Ethics and disseminationThe local institutional review and ethics board judged the project a secondary analysis of existing anonymous data which meet the criteria for waiver of ethics review. Dissemination of the results will be via published scientific papers and presentations. Key messages will be promoted for example, via social media or press releases.Prospero registration numberCRD42019125804.

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Project description:What is known and objectiveGram-negative bacteremia remains a major health problem around the world. The optimal duration of antibiotic treatment has been poorly defined, and there are significant differences of opinion between clinicians. We conducted this systematic review and meta-analysis to compare the clinical outcomes of short-course and long-course treatments in patients with uncomplicated gram-negative bacteremia.MethodsWe searched public databases (PubMed, EMBASE and Cochrane Library) to identify eligible studies. The primary outcomes were all-cause mortality and the incidence of recurrent bacteremia through day 30. We used the Cochrane risk of bias assessment tool to evaluate the risk of bias for randomized controlled trials (RCTs) and the Newcastle-Ottawa Scale for non-RCTs.Results and discussionSix studies involving 2689 patients were included in the systematic review and meta-analysis. No significant difference was found between short-course and long-course antibiotic treatments in 30-day mortality (risk ratio [RR] 0.85; 95% confidence interval [CI] 0.65-1.13; P = .26), 30-day recurrent bacteremia (RR 1.07; 95% CI 0.68-1.67; P = .78), 90-day mortality (RR 0.84; 95% CI 0.57-1.24; P = .38), 90-day recurrent bacteremia (RR 0.98; 95% CI 0.50-1.89; P = .94), adverse events (RR 1.14; 95% CI 0.89-1.45; P = .30), Clostridium difficile infection (RR 0.86; 95% CI 0.40-1.86; P = .71) or resistance development (RR 1.19; 95% CI 0.66-2.14; P = .57).What is new and conclusionShort-course was non-inferior to long-course antibiotic treatments for patients with uncomplicated gram-negative bacteremia. Considering the drug-related side effects and cost-effectiveness, a shorter duration of antibiotic treatment may be preferable for this particular population. However, additional high-quality RCTs are needed to further assess whether a shorter course of antibiotic treatment is of greater benefit for patients with uncomplicated gram-negative bacteremia.

Dataset Information

Observational versus antibiotic treatment for uncomplicated diverticulitis: an individual-patient data meta-analysis.

Background

Methods

Conclusion

Publications

Observational versus antibiotic treatment for uncomplicated diverticulitis: an individual-patient data meta-analysis.

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