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NHSN Annual Update:
Antimicrobial-Resistant Pathogens Associated With Healthcare-Associated Infections

Annual Summary of Data Reported to the National Healthcare Safety Network at the Centers for Disease Control and Prevention, 2006–2007

Antimicrobial-resistant pathogens that cause healthcare-associated infections (HAIs) pose an ongoing and increasing challenge to hospitals, both in the clinical treatment of patients and in the prevention of the cross-transmission of these problematic pathogens.  Describing the magnitude of the problem with respect to these antimicrobial-resistant pathogens is challenging, because the levels of antimicrobial resistance vary for different types of healthcare facilities and for different geographic areas, and some resistance phenotypes are difficult for laboratories to detect. However, the findings from such attempts may help the infection control and public health communities target problems and utilize resources more efficiently.

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October 2007

Volume 28, Number 10
Infect Control Hosp Epidemiol 2007;28:1169–1174
© 2007 by The Society for Healthcare Epidemiology of America. All rights reserved.
0899-823X/2007/2810-0007$15.00
DOI: 10.1086/520745
Original Article

Surgical Site Infection After Surgery to Repair Femoral Neck Fracture: A French Multicenter Retrospective Study

Jacques Merrer, MD;

Emmanuelle Girou, PharmD;

Alain Lortat‐Jacob, MD;

Philippe Montravers, MD;

Jean‐Christophe Lucet, MD; for the

Groupe de Recherche sur l’Antibioprophylaxie en Chirurgie

From the Unité de Lutte contre les Infections Nosocomiales, Département de Santé Publique, Centre Hospitalier de Poissy/St Germain‐en‐Laye, Poissy (J.M.), the Unité Contrôle, Epidémiologie et Prévention de l’Infection, Centre Hospitalier Universitaire (CHU) Henri Mondor, Assistance publique des hôpitaux de Paris (AP‐HP), Université Paris 12, Créteil (E.G.), the Service de Chirurgie orthopédique et traumatologique, Hôpital Raymond Poincaré, AP‐HP, Université de Versailles/St. Quentin‐en‐Yvelines, Garches (A.L.‐J.), the Département d’Anesthésie (P.M.) and the Unité d’Hygiène et de Lutte contre l’Infection Nosocomiale (J.‐C.L.), CHU Bichat–Claude Bernard, AP‐HP, Université Paris 7, Paris, France. Members of the study group are listed at the end of the text.

Objective.Femoral neck fracture is the most frequent orthopedic emergency among elderly persons. Despite a high prevalence of methicillin‐resistant Staphylococcus aureus (MRSA) carriage in this population, no multicenter study of antibiotic prophylaxis practices and the rate and microbiological characteristics of surgical site infection (SSI) has been performed in France.

Design.Retrospective, multicenter cohort study.

Setting.Twenty‐two university and community hospitals in France.

Patients.Each center provided data on 25 consecutive patients who underwent surgery for femoral neck fracture during the first quarter of 2005. Demographic, clinical, and follow‐up characteristics were recorded, and most patients had a follow‐up office visit or were involved in a telephone survey 1 year after surgery.

Results.These 22 centers provided data on 541 patients, 396 (73%) of whom were followed up 1 year after surgery. Of 504 (93%) patients for whom antibiotic prophylaxis was recorded, 433 (86%) received a cephalosporin. Twenty‐two patients had an SSI, for a rate of 5.6% (95% confidence interval, 3.7‐8.0). SSI was reported for 15 (6.9%) of patients who had a prosthesis placed and for 7 (3.9%) who underwent osteosynthesis ( ). SSI was diagnosed a median of 30 days after surgery (interquartile range, 21‐41 days); 7 (32%) of these SSIs were superficial infections, and 15 (68%) were deep or organ‐space infections. MRSA caused 7 SSIs (32%), Pseudomonas aeruginosa caused 5 (23%), other staphylococci caused 4 (18%), and other bacteria caused 2 (9%); the etiologic pathogen was unknown in 4 cases (18%). Reoperation was performed for 14 patients with deep or organ‐space SSI, including 6 of 7 patients with MRSA SSI. The mortality rate 1 year after surgery was 20% overall but 50% among patients with SSI. In univariate analysis, only the National Nosocomial Infections Surveillance System risk index score was significantly associated with SSI ( ).

Conclusions.SSI after surgery for femoral neck fracture is severe, and MRSA is the most frequently encountered etiologic pathogen. A large, multicenter prospective trial is necessary to determine whether the use of antibiotic prophylaxis effective against MRSA would decrease the SSI rate in this population.

Received February 20, 2007; accepted May 9, 2007; electronically published August 29, 2007.

Address reprint requests to Jacques Merrer, MD, Unité de lutte contre les infections nosocomiales, Hôpital de Poissy/St. Germain‐en‐Laye, 10 Rue du Champ‐Gaillard, 78303 Poissy, France ().

Cited by

Nicolai B. Foss, Morten Tange Kristensen, Pia Søe Jensen, Henrik Palm, Michael Krasheninnikoff, Henrik Kehlet. (2009) The effects of liberal versus restrictive transfusion thresholds on ambulation after hip fracture surgery. Transfusion 49:2, 227-234
Online publication date: 1-Mar-2009.
CrossRef

  • Presented in part: 26th Réunion Interdisciplinaire de Chimiothérapie Anti‐infectieuse; Paris, France; December 7‐8, 2006 (Abstract 106/26).

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