Related Experiment Videos
Antibiotic therapy for Bacillus species infections
G N Kervick1, H W Flynn, E Alfonso
1Department of Ophthalmology, Bascom Palmer Eye Institute, Miami, FL 33101.
American Journal of Ophthalmology
|December 15, 1990
Summary
Bacillus species ocular infections are best treated with vancomycin hydrochloride and an aminoglycoside antibiotic. This combination ensures effective coverage against these serious eye infections, according to laboratory findings.
Area of Science:
- Ophthalmology
- Microbiology
- Infectious Diseases
Background:
- Ocular infections caused by Bacillus species represent a significant clinical challenge.
- Understanding antibiotic susceptibility patterns is crucial for effective treatment of Bacillus-related eye infections.
Purpose of the Study:
- To evaluate the in vitro antibiotic susceptibility of Bacillus species isolated from ocular infections.
- To determine the most effective antibiotic agents for treating Bacillus species ocular infections.
Main Methods:
- Review of 36 culture-proven Bacillus species ocular infection cases (1974-1989).
- Kirby-Bauer disk diffusion and microbroth dilution techniques used for antibiotic susceptibility testing.
- Testing included aminoglycosides, vancomycin hydrochloride, clindamycin, and various cephalosporins.
Main Results:
- All Bacillus isolates were sensitive to aminoglycosides and vancomycin hydrochloride.
- Cephalosporins showed consistent ineffectiveness against Bacillus cereus.
- Resistance to clindamycin was observed in a subset of isolates (22%).
Conclusions:
- Vancomycin hydrochloride combined with an aminoglycoside provides reliable antibiotic coverage for Bacillus species ocular infections.
- This combination therapy is recommended for microbiologic laboratory-confirmed cases.