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  • Title: Endophthalmitis caused by Pseudomonas aeruginosa.
    Author: Eifrig CW, Scott IU, Flynn HW, Miller D.
    Journal: Ophthalmology; 2003 Sep; 110(9):1714-7. PubMed ID: 13129867.
    Abstract:
    OBJECTIVE: To investigate the clinical settings and treatment outcomes for endophthalmitis caused by Pseudomonas aeruginosa. DESIGN: Retrospective, noncomparative, consecutive case series. METHODS: The medical records were reviewed of all patients treated for P. aeruginosa endophthalmitis at a single institution between January 1, 1987, and December 31, 2001. MAIN OUTCOME MEASURES: Final visual acuity and rate of enucleation or evisceration. RESULTS: The study included 28 eyes of 28 patients with a median age of 75 years (range, 5-93 years). The clinical setting of endophthalmitis included: cataract surgery (n = 9), corneal ulcer (n = 7), penetrating keratoplasty (n = 5), bleb associated (n = 2), glaucoma drainage implant (n = 2), pars plana vitrectomy (n = 1), iris cyst removal (n = 1), and trauma (n = 1). In acute-onset postoperative cases (n = 10), the median interval between surgery and presentation with endophthalmitis was 4 days (range, 1-26 days). The median duration of symptoms was 1 day, and all patients were treated on the day of diagnosis. Eleven patients (39%) had hand motions or better vision in the infected eye at the time of initial diagnosis. Because of no light perception visual acuity, necrosis of cornea and sclera, and intractable pain, 7 eyes (25%) underwent evisceration or enucleation as initial treatment; of the remaining 21 eyes, intravitreal antibiotics were administered in all cases and intravitreal dexamethasone was administered in 15 cases (71%). Pars plana vitrectomy was performed in 12 patients (43%). The organism was sensitive to the initial antibiotics administered in all but 2 cases. Final visual acuity was 5/200 or better in 2 of 28 eyes (7%). Nineteen patients (68%) had a final visual acuity outcome of no light perception, and no patient achieved a final visual acuity of better than 20/400. Overall, 18 of the 28 eyes (64%) were either eviscerated or enucleated. CONCLUSIONS: Endophthalmitis caused by P. aeruginosa is associated with poor visual outcomes despite prompt treatment with intravitreal antibiotics to which the organisms were sensitive.
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