Enterococci in orthopaedic infections: Who is at risk getting infected? - 16/09/17
, Daniela Pires a, Americo Agostinho a, Nastassia Guanziroli c, Mehmet Öztürk c, Placido Bartolone c, Philippe Tscholl c, Michael Betz c, Didier Pittet a, bSummary |
Some orthopaedic patients might be at risk for enterococcal infections and might benefit from adapted perioperative prophylaxis.
Methods |
We performed a single-center cohort of adult patients with orthopaedic infections.
Results |
Among 2740 infection episodes, 665 surgeries (24%) involved osteosynthesis material, including total joint arthroplasties. The recommended perioperative prophylaxis was cefuroxime (or vancomycin in case of documented MRSA body carriage). Patients had received antibiotic therapy before surgery in 1167 episodes (43%); among them with potential anti-enterococcal activity (penicillins, glycopeptides, imipenem, linezolid, daptomycin, aminoglycosids, tetracyclins) in 725 (62%) cases. Overall, enterococci were identified in intraoperative samples of 100 different infections (3.6%) (Enterococcus faecalis, 95; Enterococcus faecium, 2; and other enterococci, 3). However, only 15/100 (15%) enterococcal infections were monomicrobial and 19 were nosocomial (19/2740; 0.7%), of which 15 had previous cephalosporin perioperative prophylaxis without other antibiotic exposure. This association to prior cephalosporin use was significant (Pearson-χ2-test; 148/2640 vs. 15/100, p < 0.01). By multivariate analysis, the presence of diabetic foot infection (odds ratio 1.9, 95% confidence interval 1.2–2.9), and polymicrobial infection (OR 6.0, 95%CI 3.9–9.4) were the main predictors of enterococcal infection, while sex, age, and type of material were not.
Conclusions |
Community-acquired or nosocomial enterococcal infections in orthopaedic surgery are mostly polymicrobial, rare and very seldom attributed to a nosocomial origin. Thus, even if they are formally associated with prior cephalosporin use, we do not see a rational for changing our antibiotic prophylaxis.
Le texte complet de cet article est disponible en PDF.Keywords : Orthopaedic infections, Epidemiology, Enterococci, Antibiotic use, Polymicrobial
Plan
| ☆ | All listed authors declare no financial support, grants, financial interests or consultancy that could lead to conflicts of interest. Preliminary results have been presented at the 3rd International Conference of Prevention and Infection Control (ICPIC), 16–19 June 2015, Geneva, Switzerland, and at the Annual Meeting of the Swiss Society for Infectious Diseases, 2–4 September 2015, Interlaken, Switzerland. |
Vol 75 - N° 4
P. 309-314 - octobre 2017 Retour au numéro
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