Claire Lietard1, Véronique Thébaud, Gérard Besson, Benoist Lejeune. 1. Laboratoire Universitaire de Santé Publique et Epidémiologie, Faculté de Médecine et Sciences de la Santé de Brest, UBO, and, Service de Santé Publique, Hygiène Hospitalière, Evaluation, CHU Brest, France. claire.lietard@univ-brest.fr
Abstract
OBJECT: The purpose of this study was to determine the incidence rate and risk factors of surgical site infections (SSIs) in neurosurgery for any type of surgery and any American Society of Anesthesiologists class. METHODS: The authors undertook an exhaustive 18-month prospective survey including patients who underwent neurosurgery. In particular, a 30-day follow-up was completed in patients whose surgery did not involve placement of a prosthesis or implant, and 1-year follow-up was completed for patients who underwent surgery to place a prosthesis or implant. The Centers for Disease Control definition of SSI was used. Univariate and multivariate analyses were conducted; all dependent variables found in univariate analysis were entered in the multiple regression model. A stepwise multiple logistic regression method was used. RESULTS: Of the 844 patients studied, 35 SSIs were diagnosed, yielding an incidence rate of 4.1% (95% confidence interval 3.6-4.5). Independent predictive risk factors for infection were cerebrospinal fluid leakage, external shunt, Altemeier class, and further neurosurgery. A lack of antibiotic prophylaxis was not found to be a risk factor. CONCLUSIONS: Infection risk factors occur mainly during the postoperative period.
OBJECT: The purpose of this study was to determine the incidence rate and risk factors of surgical site infections (SSIs) in neurosurgery for any type of surgery and any American Society of Anesthesiologists class. METHODS: The authors undertook an exhaustive 18-month prospective survey including patients who underwent neurosurgery. In particular, a 30-day follow-up was completed in patients whose surgery did not involve placement of a prosthesis or implant, and 1-year follow-up was completed for patients who underwent surgery to place a prosthesis or implant. The Centers for Disease Control definition of SSI was used. Univariate and multivariate analyses were conducted; all dependent variables found in univariate analysis were entered in the multiple regression model. A stepwise multiple logistic regression method was used. RESULTS: Of the 844 patients studied, 35 SSIs were diagnosed, yielding an incidence rate of 4.1% (95% confidence interval 3.6-4.5). Independent predictive risk factors for infection were cerebrospinal fluid leakage, external shunt, Altemeier class, and further neurosurgery. A lack of antibiotic prophylaxis was not found to be a risk factor. CONCLUSIONS:Infection risk factors occur mainly during the postoperative period.
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