TABLE 1

Etiologies of IE due to non-HACEK GNB

EtiologyNo. of patients (% of totala)
Enterobacteriaceae
    Escherichia coli18 (31)
    Klebsiella pneumoniae6 (10.3)
    Citrobacter koseri3 (5.2)
    Proteus mirabilis2 (3.5)
    Serratia marcescens2 (3.5)
    Enterobacter spp.2 (3.5)
    Yersinia enterocolitica1 (1.7)
    Total34 (58.6)
Nonfermenting bacteria
    Pseudomonas spp.11 (19)
    Acinetobacter baumannii1 (1.7)
Other bacteria
    Campylobacter fetus2 (3.5)
    Fusobacterium spp.2 (3.5)
    Achromobacter xylosoxidans1 (1.7)
    Brucella spp.1 (1.7)
    Prevotella buccae1 (1.7)
    Raoultella spp.1 (1.7)
    Sphingomonas paucimobilis1 (1.7)
GNB coinfectionsb3 (5.2)
MDR etiology16 (27.6)
  • a A total of 58 patients with IE due to non-HACEK GNB were studied.

  • b Comprising one case with E. coli and Proteus mirabilis, one with Pseudomonas aeruginosa and Pseudomonas fluorescens, and one with Pseudomonas aeruginosa and Stenotrophomonas maltophilia.