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Randomized Controlled Trial
. 2009 Jan 15:338:a2812.
doi: 10.1136/bmj.a2812.

Does single application of topical chloramphenicol to high risk sutured wounds reduce incidence of wound infection after minor surgery? Prospective randomised placebo controlled double blind trial

Clare F Heal  1 , Petra G Buettner, Robert Cruickshank, David Graham, Sheldon Browning, Jayne Pendergast, Herwig Drobetz, Robert Gluer, Carl Lisec
Affiliations
Randomized Controlled Trial

Does single application of topical chloramphenicol to high risk sutured wounds reduce incidence of wound infection after minor surgery? Prospective randomised placebo controlled double blind trial

Clare F Heal et al. BMJ. .

Abstract

Objective: To determine the effectiveness of a single application of topical chloramphenicol ointment in preventing wound infection after minor dermatological surgery.

Design: Prospective randomised placebo controlled double blind multicentre trial.

Setting: Primary care in a regional centre in Queensland, Australia.

Participants: 972 minor surgery patients.

Interventions: A single topical dose of chloramphenicol (n=488) or paraffin ointment (n=484; placebo).

Main outcome measure: Incidence of infection.

Results: The incidence of infection in the chloramphenicol group (6.6%; 95% confidence interval 4.9 to 8.8) was significantly lower than that in the control group (11.0%; 7.9 to 15.1) (P=0.010). The absolute reduction in infection rate was 4.4%, the relative reduction was 40%, and the relative risk of wound infection in the control group was 1.7 (95% confidence interval 1.1 to 2.5) times higher than in the intervention group. The number needed to treat was 22.8.

Conclusion: Application of a single dose of topical chloramphenicol to high risk sutured wounds after minor surgery produces a moderate absolute reduction in infection rate that is statistically but not clinically significant. Trial registration Current Controlled Trials ISRCTN73223053.

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Conflict of interest statement

Competing interests: None declared.

Figures

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Fig 1 Study protocol for patients
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Fig 2 Flowchart of enrolment, randomisation, and follow-up of patients. *See table 1 for reasons for exclusions
See this image and copyright information in PMC

Comment in

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