Acinetobacter baumannii is characterized by a rapid development of resistance to the commonly used
antimicrobial agents. We investigated the risk factors, clinical features, and outcomes in ventilatorassociated pneumonia (VAP) caused by extensive drug-resistant Acinetobacter baumannii (XDRAB).
Clinical parameters and overall in-hospital mortality rates were compared between the VAP with and
without XDRAB infection groups. This study showed that VAP caused by XDRAB was not associated with
in-hospital mortality. However, it was related to high Simplified Acute Physiology Score II scores and
increasing durations of hospital stays.