Eye-banking risk factors for fungal endophthalmitis compared with bacterial endophthalmitis after corneal transplantation

TitleEye-banking risk factors for fungal endophthalmitis compared with bacterial endophthalmitis after corneal transplantation
Publication TypeJournal Article
Year of Publication2005
AuthorsHassan SS, Wilhelmus KR
JournalAm J Ophthalmol
Pagination685 - 90
Date PublishedApr
ISSN0002-9394 (Print) 0002-9394 (Linking)
Accession Number15808165
Keywords*Corneal Transplantation, *Postoperative Complications, Aged, Cause of Death, Endophthalmitis / *epidemiology / *microbiology, Eye Banks / *statistics & numerical data, Eye Infections, Bacterial / *epidemiology / etiology, Eye Infections, Fungal / *epidemiology / etiology, Humans, Middle Aged, Odds Ratio, Organ Preservation / methods, Registries / statistics & numerical data, Risk Factors, Tissue Donors, United States / epidemiology

PURPOSE: To track the relative frequency and explore possible risk factors of fungal compared with bacterial endophthalmitis after corneal transplantation. DESIGN: Case-comparison study nested in a surveillance registry. METHODS: We examined, among recipients who underwent surgery from January 1991 through December 2003, demographic and eye-banking characteristics of postkeratoplasty endophthalmitis cases that were reported to the Eye Bank Association of America by US eye banks. Potential predictors of fungal compared with bacterial endophthalmitis were examined using multiple logistic regression. RESULTS: Of 234 reported cases of postkeratoplasty endophthalmitis reported by US eye bank, 46 cases (19.7%) were fungal, and 130 cases (55.6%) were bacterial. Concordant cultures of the residual donor corneoscleral rim or preservation medium occurred significantly more often with fungal than bacterial endophthalmitis (P = .009). After the introduction of Optisol-GS, the odds of bacterial relative to fungal endophthalmitis decreased by 77% (95% confidence interval, 44% - 91%). After adjustment for the preservation method and other eye-banking variables, the odds of fungal endophthalmitis was 3.4 (95% confidence interval, 1.6 - 7.4) times that of bacterial endophthalmitis, when donor corneal preservation was 4 days or longer. CONCLUSIONS: The frequency of postkeratoplasty bacterial endophthalmitis compared with fungal endophthalmitis fell after widespread use of a corneal preservation medium supplemented with gentamicin and streptomycin. Further improvements in corneal preservation procedures are needed.

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