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  • Title: Topical antibiotic prophylaxis for surgical wound infections in clean and clean-contaminated surgery: a systematic review and meta-analysis.
    Author: Chen PJ, Hua YM, Toh HS, Lee MC.
    Journal: BJS Open; 2021 Nov 09; 5(6):. PubMed ID: 35038328.
    Abstract:
    BACKGROUND: Topical antibiotics are widely prescribed as prophylaxis for surgical site infection (SSI). Despite giving high drug concentrations at local wound sites, their efficacy remains controversial. This study is a systematic review and meta-analysis designed to compare the efficacy and safety of topical antibiotics with non-antibiotic agents in preventing SSI. METHODS: Randomized controlled trials (RCTs) comparing topical antibiotics in patients with clean and clean-contaminated postsurgical wounds were included. Relevant trials published before 30 September 2020, were searched in the PubMed, Embase, and Cochrane databases, without language restrictions. The primary outcome was the incidence of SSIs, presented as the event rate. The secondary outcome was the incidence of contact dermatitis (safety outcome). Data were synthesized using the random-effects model, with the results expressed as risk ratio (RR) with 95 per cent confidence intervals (c.i.). RESULTS: Thirteen RCTs were included. The incidence of SSIs and contact dermatitis showed no significant difference between topical antibiotics and non-antibiotic agents (RR 0.89, 95 per cent c.i. 0.59 to 1.32 (P = 0.56, I2 = 48 per cent); and RR 2.79, 95 per cent c.i. 0.51 to 15.19 (P = 0.24, I2 = 0 per cent), respectively). In the subgroup analyses, a reduction in SSIs was also not observed in dermatological (RR 0.77, 95 per cent c.i. 0.39 to 1.55; P = 0.46, I2 = 65 per cent), ocular (RR 0.08, 95 per cent c.i. 0.00 to 1.52; P = 0.09), spinal (RR 1.34, 95 per cent c.i. 0.65 to 2.77; P = 0.43, I2 = 0 per cent), orthopaedic (RR 0.69, 95 per cent c.i. 0.37 to 1.29; P = 0.25, I2 = 0 per cent), or cardiothoracic surgeries (RR 1.60, 95 per cent c.i. 0.79 to 3.25; P = 0.19). CONCLUSION: Given the current evidence, the routine application of topical antibiotics to surgical wounds did not reduce the incidence of SSI. Further trials are needed to assess their effectiveness in high-risk surgeries or in selected patient groups.
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