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Varadhan, Krishna K., Neal, Keith R. and Lobo, Dileep N. (2012) Safety and efficacy of antibiotics compared with appendicectomy for treatment of uncomplicated acute appendicitis: meta-analysis of randomised controlled trials. BMJ: British Medical Journal, 344 (7855). 15/1-15/15. ISSN 0959-8138

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Abstract

Objective To compare the safety and efficacy of antibiotic treatment versus appendicectomy for the primary treatment of uncomplicated acute appendicitis.

Design Meta-analysis of randomised controlled trials.

Population Randomised controlled trials of adult patients presenting with uncomplicated acute appendicitis, diagnosed by haematological and radiological investigations.

Interventions Antibiotic treatment versus appendicectomy.

Outcome measures The primary outcome measure was complications. The secondary outcome measures were efficacy of treatment, length of stay, and incidence of complicated appendicitis and readmissions.

Results Four randomised controlled trials with a total of 900 patients (470 antibiotic treatment, 430 appendicectomy) met the inclusion criteria. Antibiotic treatment was associated with a 63% (277/438) success rate at one year. Meta-analysis of complications showed a relative risk reduction of 31% for antibiotic treatment compared with appendicectomy (risk ratio (Mantel-Haenszel, fixed) 0.69 (95% confidence interval 0.54 to 0.89); I2=0%; P=0.004). A secondary analysis, excluding the study with crossover of patients between the two interventions after randomisation, showed a significant relative risk reduction of 39% for antibiotic therapy (risk ratio 0.61 (0.40 to 0.92); I2=0%; P=0.02). Of the 65 (20%) patients who had appendicectomy after readmission, nine had perforated appendicitis and four had gangrenous appendicitis. No significant differences were seen for treatment efficacy, length of stay, or risk of developing complicated appendicitis.

Conclusion Antibiotics are both effective and safe as primary treatment for patients with uncomplicated acute appendicitis. Initial antibiotic treatment merits consideration as a primary treatment option for early uncomplicated appendicitis.

Item Type:	Article
RIS ID:	https://nottingham-repository.worktribe.com/output/710046
Schools/Departments:	University of Nottingham, UK > Faculty of Medicine and Health Sciences > School of Medicine > Nottingham Digestive Diseases Centre
Identification Number:	https://doi.org/10.1136/bmj.e2156
Depositing User:	Liu, Mr Zhenxing
Date Deposited:	25 Mar 2014 11:36
Last Modified:	04 May 2020 16:33
URI:	https://eprints.nottingham.ac.uk/id/eprint/2644

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