Clinical features and treatment outcomes of acute-onset endophthalmitis caused by Staphylococcus lugdunensis: a case series
Abstract
PURPOSE: To report a series of patients with acute-onset endophthalmitis caused by culture-proven Staphylococcus lugdunensis and to provide an update on the microbiologic susceptibility and clinical outcomes resulting from this organism. OBSERVATIONS: This study included 6 eyes of 6 patients. The etiologies included cataract surgery (4), intravitreal injection (1), and posterior segment surgery (1). All isolates (100%) of S. lugdunensis demonstrated sensitivity to vancomycin with minimal inhibitory concentration (MIC) values ranging from ≤ 0.5 to 1 mcg/mL and to moxifloxacin with MIC values ranging from ≤ 0.25 to 1 mcg/mL. One of 6 isolates demonstrated intermediate resistance to gentamicin with a MIC value of 8 mcg/mL. Four of 6 patients underwent pars plana vitrectomy following initial treatment with intravitreal antibiotics, and 1 eye underwent vitrectomy as initial management. Best-corrected visual acuity at last follow-up examination was≥ 20/150 in 5/6 (83.3%) of cases and ≥ 20/40 in 3/6 (50%) of cases. CONCLUSION AND IMPORTANCE: In this study, patients with acute-onset endophthalmitis caused by S. lugdunensis had relatively good outcomes, similar to a previous case series. Vancomycin continues to have consistent coverage against S. lugdunensis and remains an empiric therapeutic option for acute-onset endophthalmitis.
How strong is the evidence?
Evidence Hub reads this as a case series, done in people. Its evidence level is 5 of 5 (Very low · case / narrative / animal / in vitro / in silico). Case reports, narrative reviews, and animal, cell or computer-model studies give the weakest evidence for human health. Reported size: 6 participants or records.
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