A meta‐analysis examined the effect of topical vancomycin application in decreasing sternal wound infections post cardiac surgery

To assess the impact of topical vancomycin (TV) application in decreasing sternal wound infections (SWIs) post cardiac surgery (CS), we lead a meta‐analysis. Twenty‐three thousand seven hundred and forty five participants had CS at the outset of the investigations, according to a thorough evaluation of the literature done up to November 2022; 8730 of them used TV, while 15 015 were controls. To assess the effectiveness of TV application in lowering SWIs following CS, odds ratios (OR) with 95% confidence intervals (CIs) were computed with dichotomous technique with a fixed‐ or random‐effect model. The TV had significantly lower SWIs post CS (OR, 0.34; 95% CI, 0.20–0.57; P < .001), and deep SWIs post CS (OR, 0.26; 95% CI, 0.11–0.65; P = .004) compared with control as shown in Figures 2 and 3. Yet, there was no significant difference found amongst TV and control in superficial SWIs post CS (OR, 0.30; 95% CI, 0.07–1.30; P = .011). The TV had significantly lower SWIs, and deep SWIs post CS, and no significant difference was found in superficial SWIs post CS compared with control. The low number of included studies in this meta‐analysis for superficial SWIs calls for precaution when analysing the outcomes.