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Inicio Archivos de la Sociedad Española de Oftalmología (English Edition) Citrobacter koseri, an unusual exogenous endoftalmitis
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Vol. 99. Issue 2.
Pages 82-86 (February 2024)
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Vol. 99. Issue 2.
Pages 82-86 (February 2024)
Short communication
Citrobacter koseri, an unusual exogenous endoftalmitis
Citrobacter koseri. Una endoftalmitis exógena inusual
G. Ortega-Prades
Corresponding author
gemma.ortega.prades@gmail.com

Corresponding author.
, V.-T. Pérez-Torregrosa, H. Carot-Sanmillán, Y. Cifre-Fabra, N. Ruíz-Del Río, A.-M. Duch-Samper
Servicio de Oftalmología, Hospital Clínico Universitario de Valencia, Valencia, Spain
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Table 1. Antibiogram results of Citrobacter koseri (eye tissue sample obtained during evisceration). Sensitivities and resistances.
Abstract

Citrobacter koseri is a bacillus that causes infrequent endophthalmitis. 6% of cultures in endophthalmitis are Gram -, and as in these, C. koseri is associated with a poor visual prognosis. We present a 65-year-old man who works in an animal laboratory. He went to emergencies with loss of vision in his left eye due to a vitreous hemorrhage. A vitrectomy was performed and 3 days later, endophthalmitis was diagnosed. Vancomycin and Ceftazidime were applied in eye drops and in two intravitreal injections. 24 h later he returned with a lens extrusion. Due to the severity of the condition, an evisceration was performed. Subsequently, the samples confirm the microorganism. We assume that the entry point for the bacterium was the sclerotomies through the exposed suture material, after handling rodent feces.

Keywords:
Exogenous endophthalmitis
Citrobacter koseri
Animals
Ocular perforation
Sensitivities and resistances
Resumen

Citrobacter koseri es un bacilo Gram negativo que causa endoftalmitis de forma muy infrecuente y agresiva, asociando mal pronóstico visual. Sólo el 6% de las endoftalmitis son por Gram negativos y nuestro germen representa un pequeño porcentaje. Presentamos un varón de 65 años que trabaja en un laboratorio de animales. Acude a urgencias por pérdida de visión del ojo izquierdo debido a una hemorragia vítrea y desprendimiento de retina. Se practica una vitrectomía y 3 días después, desarrolla una endoftalmitis. Se realiza tratamiento intravítreo con inyecciones de Vancomicina y Ceftazidima así como tratamiento antibiótico tópico. 24 horas después, regresa con perforación corneal y una extrusión del cristalino. Ante la gravedad del cuadro se realiza una evisceración. El cultivo de las muestras confirman el microorganismo. Suponemos que la puerta de entrada del germen fueron las esclerotomías por el material de sutura expuesto, tras la manipulación de heces de roedores.

Palabras clave:
Endoftalmitis exógena
Citrobacter koseri
Animales
Perforación ocular
Sensibilidades and resistencias

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