Meta-analysisindependent cross-checkabstract checked★ key study I-ORG-106 in-depth review
Antibiotics instead of surgery for simple appendicitis
Appendectomy versus antibiotic treatment for acute appendicitis.
Overview
Doleman B et al.. Cochrane Database Syst Rev 2024 · PMID 38682788 · DOI 10.1002/14651858.CD015038.pub2
About two thirds of adults treated with antibiotics avoided an operation in the first year, but treatment failed more often than with surgery.
Does the study support the specific claim? Partly · Methodological quality: high
Plain-language summary
Study explained simply
- What did the researchers want to find out?
Compare antibiotics with appendix removal
- How was the study done?
Cochrane review of 13 randomised trials
- How many people, animals or samples were studied?
About 3,360 mostly adult patients
- What was actually found?
More failures with antibiotics; fewer wound infections; 30.7% needed surgery within a year
- How large was the observed effect?
76 more failures per 1000
- What do the results mean in everyday life?
Antibiotics are an option for selected simple appendicitis
- What are the study's limitations?
Mostly low-certainty evidence
- What does it say about Elawady's specific claim?
Supports that surgery is not always needed; not that appendicitis can be left untreated
- Do the results apply to Germany and Europe?
Directly applicable
- What can explicitly not be concluded from this study?
Not about diet; not about complicated appendicitis
Scientific in-depth review
1. Full reference
- Authors
- Doleman B et al.
- Journal
- Cochrane Database Syst Rev
- Year
- 2024
- Identifier
- PMID 38682788 DOI 10.1002/14651858.CD015038.pub2
- Verification
- verified – PubMed efetch 2026-10-26; Crossref works API 2026-10-26
- Retracted
- no
- Corrections
- none
- Extent checked
- abstract only
- Conflicts of interest and funding
Two included trials had pharmaceutical funding; review received non-commercial support.
2. Research question
Effects of antibiotic treatment versus appendectomy for uncomplicated acute appendicitis.
3. Study design and population
- Study design
- Meta-analysis – Cochrane systematic review and meta-analysis of RCTs (13 trials)
- Population
Mostly adults with uncomplicated/simple acute appendicitis (six trials included adults and children)
- Country
Multinational
- Period
Search to 19 July 2022
- Sample size
13 RCTs; 1675 antibiotics vs 1683 appendectomy
- Inclusion and exclusion criteria
Parallel-group RCTs, mostly adults, uncomplicated appendicitis
4. Methods and endpoints
- Exposure / intervention
Antibiotics
- Comparator
Appendectomy (open or laparoscopic)
- Endpoints
Mortality, treatment success, later appendectomy, complications, length of stay, malignancy, negative appendectomy
- Statistical methods
RR, Peto OR, random effects; GRADE
5. Actual results
- Results
Unsuccessful treatment: 76 more per 1000 with antibiotics (RR 0.91 for success, 95% CI 0.87-0.96; I2 69%; low certainty). At 1 year 30.7% (24.0-37.8) of antibiotic-treated participants needed appendectomy (very low certainty). Wound infections RR 0.25 (0.09-0.68; low certainty). Mortality uncertain (Peto OR 0.51, 0.05-4.95). Malignancy 0.3% in antibiotic group. Negative appendectomy RR 3.16 (1.54-6.49) at surgery after antibiotics (moderate).
- Absolute risks
About two thirds of antibiotic-treated adults avoided surgery in year 1; 76 more per 1000 treatment failures.
- Authors' conclusion
Antibiotics may have higher failure rates (76 per 1000) but may reduce wound infections; a third needed appendectomy within one year; too few data on major complications.
6. Strengths
- Cochrane methods
- 13 RCTs
- GRADE
7. Weaknesses
- Mostly low/very low certainty
- Heterogeneous definitions of success
- Mostly adults
8. Risk of bias
- Orienting tool
- AMSTAR 2
- Type of assessment
- simplified assessment (abstract only)
- Full formal assessment
- no
- Overall risk of bias
- low
- Rationale
High-quality review; primary trials unblinded with loss to follow-up.
9. Assessment of the statistical interpretation
Absolute effects reported per 1000; heterogeneity high for main outcomes.
10. Relevance to the specific claim
Shows that appendicitis can sometimes be treated without removing the appendix, but always needs treatment.
11. Independent contrary findings
St Peter 2025 (I-ORG-107): antibiotics inferior to surgery in children by the trial definition.
12. Transferability to Germany and Europe
High.
13. Overall methodological judgement
Supports that appendectomy is not the only option for selected uncomplicated cases; does not support leaving appendicitis untreated or treating it by diet.
| Multidimensional assessment | |
|---|---|
| Authenticity of the source | verified |
| Methodological quality | high |
| Risk of bias | low |
| Precision of results | moderate |
| Directness | direct |
| Reproducibility | replicated |
| Consistency with the overall evidence | consistent |
| Regional transferability | high |
| Adequacy of the interpretation (by the archive) | not applicable |
14. Open questions
Long-term recurrence and missed tumours.
15. Linked fact checks
- The appendix (like tonsils and adenoids) is removed far too readily from early childhood onward. – Studies supporting the claim
- No working organ should be removed (e.g., a thyroid with nodules that still functions); one should stay away from the scalpel, and Elawady is 'against any operation, including caesarean section'. – Studies contradicting or limiting the claim