Acinetobacter pittii isolated more frequently than Acinetobacter baumannii in blood cultures: the experience of a French hospital

Helene Pailhoriès 1, 2, * Clémence Tiry 2 Matthieu Eveillard 1, 2 Marie Kempf 1, 2
* Corresponding author
1 CRCINA - Département INCIT - Equipe 6 - ATIP AVENIR / ATOMycA
CRCINA - Centre de recherche de Cancérologie et d'Immunologie / Nantes - Angers
Abstract : This study assessed the characteristics of hospital-acquired Acinetobacter calcoaceticus-Acinetobacter baumannii complex bloodstream infections (BSI). From 2010 to 2017, A. calcoaceticus-A. baumannii complex BSI were investigated. Of 73 cases, 54.8% were associated with Acinetobacter pittii, 39.7% with Acinetobacter baumannii and 5.5% with Acinetobacter nosocomialis. Multi-drug-resistant isolates were significantly higher in A. baumannii BSI. Thirty-day mortality was no different between A. baumannii or non-baumannii A. calcoaceticus-A. baumannii complex BSI. In contrast with other studies, this study found that most hospital-acquired A. calcoaceticus-A. baumannii complex BSI were associated with non-baumannii A. calcoaceticus-A. baumannii complex species. This study found that these species were important hospital-acquired pathogens, and emphasizes the importance of A. calcoaceticus-A. baumannii complex species identification.
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Helene Pailhoriès, Clémence Tiry, Matthieu Eveillard, Marie Kempf. Acinetobacter pittii isolated more frequently than Acinetobacter baumannii in blood cultures: the experience of a French hospital. Journal of Hospital Infection, WB Saunders, 2018, Epub ahead of print. ⟨10.1016/j.jhin.2018.03.019⟩. ⟨inserm-01811906⟩

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