Bacteremia due to Acinetobacter ursingii in infants: reports of two cases

Abstract

Acinetobacter ursingii is an aerobic, gram-negative, opportunistic microorganism which is rarely isolated among Acinetobacter species. We present two immunocompetent infants who developed bacteremia due to A. ursingii. The first patient is a two -month- old boy who had been hospitalized in pediatric surgery unit for suspected tracheo-esophageal fistula because of recurrent aspiration pneumonia unresponsive to antibiotic therapy. The second patient is a fourteen -month- old boy with prolonged vomiting and diarrhea. A. ursingii was isolated from their blood cultures. They were successfully treated with ampicillin-sulbactam. Although A. ursingii has recently been isolated from a clinical specimen; reports of infection with A. ursingii in children are rare. A. ursingii should be kept in mind as an opportunistic microorganism in children.

Evaluation of the novel culture-based FAST-T system allowing selection of optimal antibiotics for critically ill patients within 4 h (for other than bloodstream infectious).

“…This bacterium was only recently associated with pulmonary complications in CF because previously, S. milleri could not be cultured on standard laboratory media (72, 73). Another notable example was the identification with FASM-T of K. pneumonia, Rothia dentocariosa, Acinetobacter ursingii and Bacillus pumilus , in sample #18 from the patient with hospital-acquired pneumonia (74). Each of these species had been shown previously to be associated with human infectinos.…”

Late-onset neonatal sepsis:Acinetobacterursingiias an infectious agent

“…The complexity of the approach to neonatal infection has increased over time, because of new infectious agents and increasing antibiotic resistance. Acinetobacter is a frequent pathogen in healthcare-associated infections, particularly among immunocompromised patients in the intensive care unit 2 3. Although reports from neonatal infections caused by subspecies Acinetobacter ursingii are rare, we report this case to emphasise that it should be kept in mind as an opportunistic micro-organism in neonates admitted to neonatal intensive care units (NICUs) 2 4…”

“…Acinetobacter species can be found widely in nature and can colonise the skin, the oral cavity and the upper respiratory, genital and gastrointestinal tracts. The skin may become a reservoir for Acinetobacter in hospitalised patients and healthcare providers and, due to their prolonged survival in the environment, they may spread among patients and cause hospital-associated outbreaks 2 72…”

“…The skin may become a reservoir for Acinetobacter in hospitalised patients and healthcare providers and, due to their prolonged survival in the environment, they may spread among patients and cause hospital-associated outbreaks 2 72…”

“…Acinetobacter infections in neonatal intensive care units are described in literature, but the subspecies ursingii is rarely isolated 2. In a study by Chiu et al , of a sample of 616 patients with Acinetobacter species bacteraemia, 3.1% were identified as A. ursingii 8.…”