Scrubbing technique and surgical site infections: an analysis of 14,200 neurosurgical cases

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OBJECTIVE

The preoperative scrub has been shown to lower the incidence of surgical site infections (SSIs). Various scrubbing and gloving techniques exist; however, it is unknown how specific scrubbing technique influences SSI rates in neurosurgery. The authors aimed to assess whether the range of scrubbing practice in neurosurgery is associated with the incidence of SSIs.

METHODS

The authors conducted a retrospective review of a prospectively maintained database to identify all 90-day SSIs for neurosurgical procedures between 2012 and 2017 at one of their teaching hospitals. SSIs were classified by procedure type (craniotomy, shunt, fusion, or laminectomy). Surveys were administered to attending and resident physicians to understand the variation in scrubbing methods (wet vs dry, iodine vs chlorhexidine, single vs double glove). The chi-square followed by multivariate logistic regression analyses were utilized to identify independent predictors of SSI.

RESULTS

Forty-two operating physicians were included in the study (18 attending physicians, 24 resident physicians), who performed 14,200 total cases. Overall, SSI rates were 2.1% (296 SSIs of 14,200 total cases) and 2.0% (192 of 9,669 cases) for attending physicians and residents, respectively. Shunts were independently associated with an increased risk of SSI (OR 1.7 [95% CI 1.3–2.1]), whereas laminectomies were associated with a decreased SSI risk (OR 0.4 [95% CI 0.2–0.8]). Wet versus dry scrub (OR 0.9 [95% CI 0.6–1.4]), iodine versus chlorhexidine (OR 0.6 [95% CI 0.4–1.1]), and single- versus double-gloving (OR 1.1 [95% CI 0.8–1.4]) preferences were not associated with SSIs.

CONCLUSIONS

There is no evidence to suggest that perioperative infection is associated with personal scrubbing or gloving preference in neurosurgical procedures.

ABBREVIATIONS NHSN = National Health and Safety Network; PGY = postgraduate year; SSI = surgical site infection.
Article Information

Contributor Notes

Correspondence Robert M. Friedlander: University of Pittsburgh Medical Center, Pittsburgh, PA. friedlanderr@upmc.edu.INCLUDE WHEN CITING Published online June 14, 2019; DOI: 10.3171/2019.3.JNS1930.Disclosures The authors report no conflict of interest concerning the materials or methods used in this study or the findings specified in this paper.
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