期刊
AMERICAN JOURNAL OF OPHTHALMOLOGY
卷 214, 期 -, 页码 119-126出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ajo.2020.03.017
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PURPOSE: To analyze the clinical characteristics, management choices, and outcomes of cases of methicillin-resistant Staphylococcus aureus (MRSA) keratitis. DESIGN: Retrospective interventional case series. METHODS: Fifty-two culture-proven (52 eyes) cases of MRSA keratitis diagnosed and treated at the University of Pittsburgh Medical Center were identified and reviewed. RESULTS: The mean age was 66.6 +/- 19.2 years with a median follow-up time of 147 days. The most prevalent risk factors included a history of ocular surgery (62.5%), topical corticosteroid use (35.4%), and dry eye syndrome (37.5%). There was a high burden of systemic disease (95.8%). The average presenting logarithm of minimal angle of resolution visual acuity was 1.7 +/- 0.8 and the average final logarithm of minimal angle of resolution visual acuity was 1.2 + 1.0. Initial antibiotic treatment varied, with 20.8% receiving moxifloxacin alone, 20.8% receiving fortified cefazolin and fortified tobramycin together, and 12.5% receiving fortified vancomycin and fortified tobramycin, although other antibiotics were used during treatment if warranted. Surgical management was often required as 17.3% of eyes perforated: 13.5% required tarsorrhaphy, 5.8% required penetrating keratoplasty, and 1 eye was enucleated. When patients treated with fourth-generation fluoroquinolones were compared with those treated with fortified vancomycin, no difference in final visual acuity, treatment duration, or need for surgery was found. CONCLUSION: MRSA causes fulminant keratitis often requiring surgical management with poor visual acuity outcomes. Poor ocular surface, topical corticosteroid use, previous ocular surgery, and/or a high burden of systemic disease were identified as common risk factors. Patients treated with fluoroquinolones in our study had comparable outcomes to those treated with fortified vancomycin; however, those treated with fortified vancomycin tended to have more severe ulcers at presentation. ((C) 2020 Elsevier Inc. All rights reserved.)
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