Endophthalmitis After Open Globe Injury: Microbiologic Spectrum and Susceptibilities of Isolates
2006
Purpose To present the microbiologic spectrum and susceptibilities of isolates in posttraumatic endophthalmitis, and to provide a review of the literature. Design Retrospective consecutive case series. Methods A review of 1182 consecutive open globe injuries was performed, identifying 10 patients with culture-proven endophthalmitis. Results Thirteen organisms were isolated from 10 eyes with posttraumatic endophthalmitis. Isolated organisms included Streptococcus species (46.2%), coagulase-negative Staphylococcus (23.1%), and Bacillus cereus (15.4%). All organisms tested were susceptible to vancomycin and tobramycin. The most commonly isolated organisms from an aggregate posttraumatic endophthalmitis pool of 372 cases obtained by literature-based meta-analysis were coagulase-negative Staphylococcus (21.5%) and Bacillus cereus (18.5%). Conclusion We report a high prevalence of gram-positive pathogens and a notable prevalence of Bacillus cereus in posttraumatic endophthalmitis. Susceptibility results suggest that posttraumatic endophthalmitis isolates are generally susceptible to vancomycin and tobramycin.
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