Human corneal stromal tissue concentration after consecutive doses of topically applied 3.3% vancomycin
| Autor: | A Grinbaum, G.J. Ben Simon, Michael Cahane, E Rubinstein, L Diamanstein-Weiss, Irina S. Barequet, Isaac Avni, O Goller |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Adult
Male Keratoconus medicine.medical_specialty Stromal cell genetic structures Corneal Stroma medicine.medical_treatment Clinical Science - Scientific Reports medicine.disease_cause Eye Infections Bacterial Cellular and Molecular Neuroscience Vancomycin Cornea Ophthalmology medicine Humans Surgical Wound Infection Gram-Positive Bacterial Infections Corneal Scar Aged Keratitis Chemotherapy Corneal Decompensation business.industry Antibiotic Prophylaxis Middle Aged biochemical phenomena metabolism and nutrition medicine.disease eye diseases Sensory Systems Anti-Bacterial Agents Surgery medicine.anatomical_structure Staphylococcus aureus Female sense organs Ophthalmic Solutions business Keratoplasty Penetrating medicine.drug |
| Zdroj: | British Journal of Ophthalmology. 88:22-24 |
| ISSN: | 0007-1161 |
| DOI: | 10.1136/bjo.88.1.22 |
| Popis: | Aims: To evaluate vancomycin penetration into human corneal stromal tissue in patients treated with topical vancomycin eyedrops before penetrating keratoplasty (PKP). Methods: Twenty four patients who underwent PKP, seven patients with keratoconus (group 1) and 17 patients with corneal scar or corneal decompensation (group 2). All patients received topical application of vancomycin eyedrops (concentration: 33 mg/ml) 10, 3, 2, 1 hour, and 15 minutes before the operation. Corneal cumulative vancomycin levels were assessed by bioassay. Results: Mean vancomycin corneal stromal tissue concentration was 46.7 (SE 4.11) µg/g tissue. This value was four to 20-fold in excess of the MIC90 of vancomycin in Staphylococcus aureus (2–10 µg/ml). Conclusions: Vancomycin reached high corneal tissue concentrations that significantly exceeded the MIC90 (2–10 µg/ml) for most key Gram positive corneal pathogens. The ratio of vancomycin stromal concentration to protein concentration was statistically higher in group 2 (non-keratoconus). |
| Databáze: | OpenAIRE |
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