Abstract
We report the clinical features, treatment strategies and outcomes in a series of patients with infectious endophthalmitis after cataract surgery caused by <i>Cutibacterium acnes (C. acnes)</i>, formerly known as <i>Propionibacterium acnes (P. acnes)</i>. This retrospective case series includes six eyes of six patients with chronic postoperative endophthalmitis caused by culture-proven <i>C. acnes</i>from December 2010 to July 2019 at a University referral center. All patients underwent prior cataract extraction with intraocular lens (CE/IOL) implantation. The mean time between cataract surgery and the microbiologic diagnosis of endophthalmitis was 7.4 ± 5.2 months (range 1.5–17 months). The average time from obtaining the specimen to culture positivity was 7.7 ± 4.4 days (range 3–15 days). Three eyes (50%) presented with hypopyon and three eyes (50%) presented with prominent keratic precipitates without hypopyon. Presenting visual acuity ranged from 20/25 to 2/200. Initial treatments included intravitreal antibiotics alone (<i>n</i> = 2), pars plana vitrectomy (PPV) with partial capsulectomy and intravitreal antibiotics (<i>n</i> = 3), and pars plana vitrectomy with IOL removal and intravitreal antibiotics (<i>n</i> = 1). Follow-up treatments included IOL removal (<i>n</i> = 2), intravitreal antibiotics (<i>n</i> = 1), and topical antibiotics (<i>n</i> = 1). The best-corrected visual acuity at last follow-up was 20/70 or better in all patients. In a literature review, the clinical features and treatment outcomes for all case series of delayed-onset postoperative endophthalmitis caused by <i>C. acnes</i>(<i>n</i> = 120) are listed<i>.</i> A definitive cure (the absence of recurrent inflammation) was achieved in 100% of patients that underwent IOL removal, in 77% of those that underwent PPV/partial capsulectomy and intravitreal antibiotics, and in 18% of cases treated with intravitreal antibiotics alone. Endophthalmitis after CE/IOL caused by <i>C. acnes</i>is characterized by slowly progressive intraocular inflammation and has a protracted course from surgery to microbiologic diagnosis. Visual outcomes are generally favorable, but IOL explantation may be necessary for definitive cure.
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8 articles.
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