Nasal screening for methicillin-resistant Staphylococcus aureus does not reduce surgical site infection after primary lumbar fusion.
Spine J
; 22(1): 113-125, 2022 01.
Article
em En
| MEDLINE
| ID: mdl-34284131
ABSTRACT
BACKGROUND CONTEXT Preoperative methicillin-resistant Staphylococcus aureus (MRSA) testing and decolonization has demonstrated success for arthroplasty patients in surgical site infections (SSIs) prevention. Spine surgery, however, has seen varied results. PURPOSE:
The purpose of this study was to determine the impact of nasal MRSA testing and operative debridement rates on surgical site infection after primary lumbar fusion. STUDY DESIGN/SETTING:
Retrospective cohort study and/or Consolidated medical enterprise PATIENT SAMPLE Adult patients undergoing primary instrumented lumbar fusions from January 2015 to December 2019 were reviewed. OUTCOMEMEASURES:
The primary outcome was incision and drainage performed in the operating room within 90 days of surgery.METHODS:
MRSA testing <90-day's before surgery, mupirocin prescription <30-day's before surgery, perioperative antibiotics, and Elixhauser comorbidity index were collected for each subject. Bivariate analysis used Wilcoxon rank-sum testing and logistic regression modeling Multivariable logistic regression modeling assessed for associations with MRSA testing, intravenous vancomycin use, and I&D rate.RESULTS:
The study included 1,884 patients for analysis, with mean age of 63.1 (SE 0.3) and BMI 29.5 (SE 0.1). MRSA testing was performed in 755 patients (40.1%) and was more likely to be performed in patients with lower Elixhauser index scores (OR 0.98, 95% CI 0.96-0.99, p=.021) on multivariable analysis. Vancomycin use increased significantly over time (OR 1.49 and/or year, 95% CI 1.3-1.8, p<.001) despite no change in mupirocin or I&D rates. MRSA testing, mupirocin prescriptions, perioperative parenteral vancomycin use, and intrawound vancomycin powder use had no impact on I&D rates. I&D risk was associated with higher BMI (OR 1.06, 95% CI 1.02-1.12, p=.009) and higher number of blood product units transfused (OR 1.23, 95% CI 1.03-1.46, p=.022).CONCLUSIONS:
The present study demonstrates no impact on surgical I&D rates from the use of preoperative MRSA testing. Increased BMI and transfusions were associated with operative I&D rates for surgical site infection. As a result of the hospital directive, vancomycin use increased over time with no associated change in infection rates, underscoring the need for focused interventions, and engagement with antibiotic stewardship programs.Palavras-chave
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Base de dados:
MEDLINE
Assunto principal:
Infecções Estafilocócicas
/
Staphylococcus aureus Resistente à Meticilina
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article