Abstract
To compare chlorhexidine-alcohol with povidone-iodine solutions for skin antisepsis prior to cesarean delivery for the prevention of surgical site infection. Electronic databases MEDLINE, Embase, Scopus, and Clinicaltrials.gov were searched from inception to August 2017. Eligible studies included randomized controlled trials comparing chlorhexidine-alcohol with povidone-iodine skin preparation solutions for women undergoing cesarean delivery. The primary outcome was surgical site infection including superficial or deep wound infection. Meta-analysis was performed, and risk ratios (RRs) with 95% confidence interval (CI) were calculated using the Mantel-Haenszel random effects model. Statistical heterogeneity was assessed using Higgin's I 2. Of 61 abstracts identified in the primary search, four studies (3,059 women) met the eligibility criteria. The risk of surgical site infection was significantly reduced with chlorhexidine-alcohol (RR: 0.72; 95% CI: 0.52-0.98). No heterogeneity across studies was observed with I 2 = 0%. Subgroup analysis of superficial infection only or deep infection only showed no statistically significant difference (RR: 0.76, 95% CI: 0.54-1.08; and RR: 0.50, 95% CI: 0.23-1.10, respectively). Preoperative skin cleansing prior to cesarean delivery with chlorhexidine-alcohol reduces surgical site infection as compared with povidone-iodine solutions.
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