Presentation on theme: "Melissa B Daluvoy MD, Neelofar Ghaznawi MD, Kristin M Hammersmith MD, Edwin S Chen MD, Christopher J Rapuano MD, Elisabeth J Cohen MD Cornea Service, Wills."— Presentation transcript:
Melissa B Daluvoy MD, Neelofar Ghaznawi MD, Kristin M Hammersmith MD, Edwin S Chen MD, Christopher J Rapuano MD, Elisabeth J Cohen MD Cornea Service, Wills Eye Institute, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, USA The authors have no financial interest in the subject matter of this poster
Introduction: Epithelial basement membrane dystrophy (EBMD) is the most common anterior corneal dystrophy. Histopathologically, the epithelial basement membrane has poorly functioning adhesion complexes leading to a weak attachment of epithelium to Bowman’s membrane; making these corneas more susceptible to spontaneous or recurrent erosions (RES) 1. Any break in the epithelium can predispose a cornea to microbial infection. One study of corneal infections (n=1786) reported 0.6% were secondary to RES 2. In our experience EBMD is a small, but real, risk for infectious keratitis.
Clinical photograph of a patient with epithelial basement dystrophy Courtesy of Edwin S. Chen, MD Histopathology of degenerated epithelial cells trapped in abnormal epithelium; presents clinically as a microcyst. Courtesy of Ralph Eagle, MD
Purpose: To describe infectious keratitis due to underlying hereditary EBMD and EBM changes from previous trauma.
Methods: We performed a retrospective chart review of patients with infectious keratitis secondary to EBMD from 1/1/2007 to 9/30/2009 at a tertiary care center. Patients with recent trauma, bullous keratopathy, or contact lens wear were excluded. Laterality of EBMD changes, history of remote trauma, RES, and social, medical and ocular history were recorded. The active treatment for the keratitis, duration of follow-up and time to resolution, vision as well as culture results and complications were also noted.
Results: Thirteen patients were identified. All patients were referred for consultation after onset of infection and initiation of some form of treatment. Average age at onset of the infection was 61.6 +/-12.8 years; 61.5% were female. All cases had unilateral infections; 61.5% were of the right eye. 92.3% had EBMD in both eyes 23.1% had reported history of remote trauma in the affected eye 46.2% had reported history of RES in the affected eye. Clinical findings on presentation included infiltrate (100%), epithelial defect(85%), hypopyon(23%), and stromal edema(69%). All were treated with topical antibiotics 8 (61.5%) were cultured: 5 (62.5%) of those were positive 6 (46.2%) patients were started on fortified antibiotics/antifungals on their 1 st visit. Pathogens included S. aureus, S. epidermidis, P. aeruginosa, MRSA, and Candida. One patient was hospitalized and treated for corneal perforation.
Results: Pt/ Sex AgeEBMDTr. Hx RESCultureTreatment/CourseF/uVA on Present- ation Final VA 1/F50OU++No Growth Topical Voriconazole, amphotericin, and moxifloxacin; oral voriconazole; atropine; polysporin oint; new hypopyon w/ d/c of moxiflozacin –restarted;Pred Ac. 1% added day 68 99 days 20/40020/60 2/F66OU-UKNot done Gatifloxacin, ciprofloxacin oint1 visit 20/20 3/F92OU-UKNot done Gatifloxacin, polysporin oint, BCL6 days 20/20020/40 4/F56OU-+Not done Bacitracin oint1 visit 20/20 5/M52OU++Candida & hemophilis Topical F. gentamycin, F vancomycin, voriconazole, atropine, PO cefazolin, timolol, * Day 4 perforation repaired with glue & BCL, PO voriconazole, brinonidine, dorzolamide, moxifloxacin, 305 days 20/8020/50 6/F65OU--No Growth F. cefazolin, F. tobramycin, scopolamine3 days 20/8020/40 7/M52OU-+Coag Neg Staph Atropine, topical levofloxacin, erythromycin oint89 days CF20/40 8/M68OUUKUNNot done Topical levofloxacin, azithromycin ophthalmic solution35 days 20/30 9/F52OS--Not done Topical levofloxacin, polysporin oint10 days 20/5020/40 10/M58OUUK+S. Aureus F. cefazolin, F. tobramycin, cyclopentolate1 visit CF 11/F81OU+UNPseudomo nas Topical gatifloxacin, F. cefazolin, scopolamine, muro oint, ciprofloxacin oint, PO doxycycline, Day 31 Pred Ac 1% added 45 days HM20/20 0 12/F59OU-UNNo Growth Topical F. Vancomycin, F. gentamycin, scopolamine, polysporin oint, Day 22 loteprednol added 53 days 20/7020/30 13/M50OUUK+MRSA Topical F. cefazolin, F. tobramycin, scopolamine, polysporin oint, moxifloxacin, Day 19 loteprednol added 107 days CF20/25
Previous studies: culture results 3-8 3 cultured; all were pos: Pseudomonas; S. aureus (2) 2 cultured = all neg 11 cultured = S. aureus (2) 1 cultured = all neg 5 cultured = all neg
Conclusion: EBMD is known to cause considerable morbidity including ocular pain, RES and decreased vision 8. Infectious keratitis is a vision threatening complication that can lead to scarring and perforation. Our series had a 62.5% culture positivity rate with a wide variety of organisms. Given the serious ocular morbidity associated with infectious keratitis we recommend intense antimicrobial treatment as first line therapy. When counseling patients regarding the prognosis and treatment of EBMD or faced with an ulcer of unknown etiology, ophthalmologists should consider the possibility of infectious complications caused by EBMD.
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