Acinetobacterinfections: a growing threat for critically ill patients

Abstract

SUMMARYThere has been increasing concern regarding the rise ofAcinetobacterinfections in critically ill patients. We extracted information regarding the relative frequency ofAcinetobacterpneumonia and bacteraemia in intensive-care-unit (ICU) patients and the antimicrobial resistance ofAcinetobacterisolates from studies identified in electronic databases.Acinetobacterinfections most frequently involve the respiratory tract of intubated patients andAcinetobacterpneumonia has been more common in critically ill patients in Asian (range 4–44%) and European (0–35%) hospitals than in United States hospitals (6–11%). There is also a gradient in Europe regarding the proportion of ICU-acquired pneumonias caused byAcinetobacterwith low numbers in Scandinavia, and gradually rising in Central and Southern Europe. A higher proportion ofAcinetobacterisolates were resistant to aminoglycosides and piperacillin/tazobactam in Asian and European countries than in the United States. The data suggest thatAcinetobacterinfections are a growing threat affecting a considerable proportion of critically ill patients, especially in Asia and Europe.