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Staphylococcus Aureus Swabbing and Decolonization Before Neuromodulation Procedures: A Systematic Review and
Neal Patel1, Justin Gold2, Nolan J Brown3
1School of Medicine, Mercer University, Columbus, GA, USA.
Introduction:
Staphylococcus aureus (S aureus) is the foremost bacterial cause of surgical-site infection (SSI) and is a common source of neuromodulation SSI. Endogenous colonization is an independent risk factor for SSI; however, this risk has been shown to diminish with screening and decolonization.
Materials And Methods:
A systematic review was performed according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines using the PubMed, Cochrane Library, and Embase data bases from inception to January 1, 2022, for the purposes of identifying all studies reporting on the use of S aureus swabbing and/or decolonization before neuromodulation procedures. A random-effects meta-analysis was performed using the metaphor package in R to calculate odds ratios (OR).
Results:
Five observational cohort studies were included after applying the inclusion and exclusion criteria. The average study duration was 6.6 ± 3.8 years. Three studies included nasal screening as a prerequisite for subsequent decolonization. Type of neuromodulation included spinal cord stimulation in two studies, deep brain stimulation in two studies, intrathecal baclofen in one study, and sacral neuromodulation in one study. Overall, 860 and 1054 patients were included in a control or intervention (ie, screening and/or decolonization) group, respectively. A combination of nasal mupirocin ointment and a body wash, most commonly chlorhexidine gluconate soap, was used to decolonize throughout. Overall infection rates were observed at 59 of 860 (6.86%) and ten of 1054 (0.95%) in the control and intervention groups, respectively. Four studies reported a significant difference. The OR for intervention (screen and/or decolonization) vs no intervention was 0.19 (95% CI, 0.09-0.37; p < 0.001). Heterogeneity between studies was nonsignificant (I2 = 0.43%, τ2 = 0.00).
Conclusions:
Preoperative S aureus swabbing and decolonization resulted in significantly decreased odds of infection in neuromodulation procedures. This measure may represent a worthwhile tool to reduce neuromodulation SSI, warranting further investigation.
