Vol.53 No.10 October 2005
Antimicrobial susceptibility of Gram-negative bacillus causing late-onset neonatal bacteremia in a neonatal intensive care unit
Department of Pediatrics, Asahikawa Kosei Hospital, 1-24 Asahikawa, Hokkaido, Japan
Abstract
Between 1998 and 2004, we studied the minimal inhibitory concentration (MICs) of 11 strains of Gram-negative bacilli isolated from blood in patients with late-onset neonatal bacteremia in a neonatal intensive care unit. Pathogenic organisms were 3 in Acinetobacter spp., 2 in Enterobacter cloacae, 2 in Ralstonia pickettii, and 1 each in Klebsiella pneumoniae, Burkholderia cepacia, Pseudomonas aeruginosa, and Proteus mirabilis.
The susceptibility of ciprofloxacin, imipenem, and meropenem to these organisms exceeded 80%. Ciprofloxacin was not susceptible to P. aeruginosa, and imipenem and meropenem were not susceptible to R. pickettii.
Key word
gram-negative bacilli, bacteremia, neonatal intensive care unit, susceptibility
Received
July 25, 2005
Accepted
September 7, 2005
Jpn. J. Chemother. 53 (10): 623-626, 2005
