Wound sepsis following gastrointestinal surgery: A comparison of topical and two-dose systemic cephradine

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Abstract
A prospective study of the effect of the route of administration of prophylactic antibiotic on the wound infection rate following gastrointestinal surgery was performed. Patients were randomly allocated to one of three groups: group 1 received no form of antibiotic prophylaxis; group 2 received 1 g of cephradine applied topically to the wound at closure; group 3 received 1 g of cephradine intravenously at induction of anaesthesia and a further intravenous dose of 500 mg 4 h later. Wound infections occurred in 12 of 83 patients in the control group (14.5 per cent), in 6 of the 83 patients in the group who received topical antibiotic (7.2 per cent) and in 3 of the 82 patients who received systemic antibiotics (3.6 per cent). Only the group who received systemic antibiotic showed a statistically significant reduction in the incidence of wound infections compared with the control group (P = 0.03).