Comment: The quality of evidence is downgraded by study limitations (high loss to follow-up ) and by imprecise results (only one study with few outcome events).
A Cochrane review included 1 study with a total of 147 subjects assessing the effectiveness of prophylactic antibiotic (single-dose, second-generation cephalosporin - cefotetan or cefoxitin, 1 g intravenously) on postpartum perineal wound complications in third- or fourth-degree perineal tears compared with placebo. Perineal wound complications (wound disruption and purulent discharge) at the two-week postpartum check up were 8.20% and 24.10% in the treatment and the control groups respectively (RR 0.34, 95% CI 0.12 to 0.96).
Date of latest search: 31 August 2014