Citrobacter koseri. Una endoftalmitis exógena inusual / Citrobacter koseri, an unusual exogenous endoftalmitis

Citrobacter koseri es un bacilo gramnegativo que causa endoftalmitis de forma muy infrecuente y agresiva, asociando mal pronóstico visual. Solo el 6% de las endoftalmitis son por gramnegativos 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. Veinticuatro 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.(AU)

Citrobacter koseri is a bacillus that causes infrequent endophthalmitis. Six percent of cultures in endophthalmitis are Gram -, and as in these, Citrobacter 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. Twenty-four hours 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.(AU)

Citrobacter koseri, an unusual exogenous endoftalmitis.

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.

Diagnóstico diferencial de las reacciones inflamatorias tras uso de medicación intravítrea en degeneración macular asociada a la edad: estéril vs. infeccioso / Differential diagnosis of endophthalmitis after intravitreal drug injection for age related macular degeneration: Sterile vs. infectious

El interés por las complicaciones inflamatorias tras la inyección intravítrea de fármacos antiangiogénicos ha aumentado tras la comercialización de brolucizumab y el desarrollo de nuevas moléculas como el abicipar pegol. Dichos fármacos se asocian a una tasa de complicaciones inflamatorias mayor a los antiangiogénicos clásicos. En este contexto resulta clave el diferenciar procesos infecciosos y estériles para realizar un tratamiento efectivo y precoz. El solapamiento del cuadro clínico entre procesos infecciosos y estériles, la baja tasa de positividad en los cultivos y la heterogeneidad en la terminología son barreras para el correcto diagnóstico y reporte de las complicaciones inflamatorias tras la inyección de medicación antiangiogénica intravítrea. Los cuadros estériles comienzan de forma precoz tras la inyección, dentro de las primeras 48 h, o alrededor de 20 días después en los casos de vasculitis asociada a brolucizumab. Los procesos infecciosos comienzan como promedio en el tercer día tras la inyección, y hasta una semana después de la misma. La disminución grave de la agudeza visual, el dolor severo, la hiperemia severa, el hipopion y un mayor grado de inflamación intraocular deben orientar hacia procesos infecciosos. En los casos en que exista duda sobre la etiología de la inflamación, debe procederse a un control muy estrecho del paciente o al tratamiento antimicrobiano empírico junto con la toma de muestra para evitar complicaciones derivadas de una endoftalmitis infecciosa. Por el contrario, los fenómenos estériles deben ser tratados con observación en los casos más leves o corticoterapia adaptada a la gravedad de inflamación en los casos más graves (AU)

The recent release of brolucizumab and the development of new antiangiogenic molecules as abicipar pegol has increased the interest towards inflammatory complications after intravitreal drug injection. Those drugs are associated to a higher rate of inflammatory adverse events compared to classic drugs. In this context it is essential to differentiate between sterile and infectious cases for a fast and effective treatment. The clinical similarities between infectious and sterile cases, the high rate of culture negative patients and the heterogeneity in the terminology used are obstacles for a correct diagnosis and report of these complications. Sterile cases appear early after the injection, before 48h; or 20 days after in brolucizumab-related vasculitis cases. Infectious cases show up around the third day after injection and up to a week after it. A severe visual impairment, severe pain, severe hyperemia, hypopyon and a more severe intraocular inflammatory process are signs of a likely infectious origin. If the cause of the inflammation is uncertain we must follow up the patient closely or “tap and inject” antimicrobial agents in order to prevent the eventual complications of an infectious endophthalmitis. On the other hand, sterile endophthalmitis might be observed in mild cases or treated with steroids according to the severity of the inflammation (AU)

Differential diagnosis of endophthalmitis after intravitreal drug injection for age related macular degeneration: sterile vs. infectious.

The recent release of brolucizumab and the development of new antiangiogenic molecules as abicipar pegol has increased the interest towards inflammatory complications after intravitreal drug injection. Those drugs are associated to a higher rate of inflammatory adverse events compared to classic drugs. In this context it is essential to differentiate between sterile and infectious cases for a fast and effective treatment. The clinical similarities between infectious and sterile cases, the high rate of culture negative patients and the heterogeneity in the terminology used are obstacles for a correct diagnosis and report of these complications. Sterile cases appear early after the injection, before 48 h; or 20 days after in brolucizumab-related vasculitis cases. Infectious cases show up around the third day after injection and up to a week after it. A severe visual impairment, severe pain, severe hyperemia, hypopyon and a more severe intraocular inflammatory process are signs of a likely infectious origin. If the cause of the inflammation is uncertain we must follow up the patient closely or "tap and inject" antimicrobial agents in order to prevent the eventual complications of an infectious endophthalmitis. On the other hand, sterile endophthalmitis might be observed in mild cases or treated with steroids according to the severity of the inflammation.

Incidencia y comportamiento clínico de la endoftalmitis poscirugía de catarata / Incidence and clinical behavior of endophthalmitis post cataract surgery

Introducción: La endoftalmitis posquirúrgica es la complicación más temida de la cirugía de catarata. Resulta potencialmente devastadora, puede amenazar seriamente la visión y tiene una incidencia estimada de entre 0,02 y 0,71 por ciento. Objetivo: Determinar la incidencia de endoftalmitis poscirugía de catarata y su comportamiento clínico. Métodos: Se realizó un estudio observacional, descriptivo y de corte transversal. Se revisaron 13 850 cirugías consecutivas de catarata realizadas en el Centro Oftalmológico del Hospital Universitario Clínico Quirúrgico "Arnaldo Milián Castro" de Villa Clara, Cuba. Resultados: La incidencia de endoftalmitis poscirugía de catarata en esta serie fue de 0,17 por ciento (IC 95 por ciento: 0,10-0,24 por ciento); 0,18 por ciento (IC 95 por ciento 0,11-0,25 por ciento) para extracción extracapsular del cristalino y sin incidencia en la facoemulsificación. La forma de presentación aguda fue más frecuente que la crónica; 0,13 por ciento (IC 95 por ciento: 0,07-0,19 por ciento) y 0,04 por ciento (IC 95 por ciento: 0,01-0,07 por ciento), respectivamente. Los hombres fueron más afectados que las mujeres y la edad media fue de 71,8 años. La forma aguda se presentó con una media de 5,1 días entre la cirugía y el inicio de los síntomas y la crónica con una media de 21,2 semanas. El 39,1 por ciento de los pacientes tuvo agudeza visual de percepción luminosa al momento del diagnóstico. Se reportó un crecimiento bacteriano en el 44,7 por ciento de las muestras, con una positividad en humor acuoso y vítreo del 42,1 por ciento y 47,4 por ciento, respectivamente. El Staphylococcus coagulasa negativo fue el germen más frecuente. Los antibióticos intravítreos más vitrectomía plana precoz fue la conducta terapéutica más empleada. Conclusiones: La incidencia de endoftalmitis poscirugía de catarata en esta serie está en el rango de lo reportado a nivel mundial. Se presenta comúnmente de forma aguda y con pobre agudeza visual. El agente etiológico aislado con más frecuencia fue el Staphylococcus coagulasa negativa(AU)

Introduction: Postoperative endophthalmitis is the most feared complication of cataract surgery. It is potentially devastating, can seriously threaten vision and has an estimated incidence of between 0.02 and 0.71 percent. Objective: To determine the incidence of endophthalmitis after cataract surgery and its clinical behavior. Methods: An observational, descriptive, cross-sectional, descriptive study was performed. Thirteen 850 consecutive cataract surgeries performed at the Ophthalmologic Center of the Clinical Surgical University Hospital "Arnaldo Milián Castro" of Villa Clara were reviewed. Results: The incidence of endophthalmitis after cataract surgery in this series was 0.17 percent (95 percent CI: 0.10-0.24 percent); 0.18 percent (95 percent CI: 0.11-0.25 percent) for extracapsular extraction of the crystalline lens and no incidence in phacoemulsification. The acute form of presentation was more frequent than the chronic form; 0.13 percent (95 percent CI: 0.07-0.19 percent) and 0.04 percent (95 percent CI: 0.01-0.07 percent), respectively. Males were more affected than females and the mean age was 71.8 years. The acute form occurred with a mean of 5.1 days between surgery and symptom onset and the chronic form with a mean of 21.2 weeks. Thirty-nine.1 percent of patients had visual acuity of light perception at the time of diagnosis. Bacterial growth was reported in 44.7 percent of the specimens, with positivity in aqueous and vitreous humor of 42.1 percent and 47.4 percent, respectively. Coagulase-negative Staphylococcus was the most frequent germ. Intravitreal antibiotics plus remission for early flat vitrectomy was the most commonly employed therapeutic behavior. Conclusions: The incidence of post cataract surgery endophthalmitis in this series is in the range of that reported worldwide. It commonly presents acutely and with poor visual acuity. The most frequently isolated etiologic agent was coagulase-negative Staphylococcus(AU)

Endoftalmitis endógena por Klebsiella pneumoniae: reporte de 2 casos y revisión de literatura referente a K. pneumoniae hipermucoviscosa e hipermucovirulenta / Endogenous Klebsiella pneumoniae endophthalmitis: report of 2 cases and literature review regarding hypermucoviscous and hypermucovirulent K. pneumoniae

Objetivo: Reportar dos casos de endoftalmitis endógena por Klebsiella pneumoniae hipermucoviscosa y revisar las características clínicas de esta entidad que ha aumentado su prevalencia en países occidentales. Observaciones: Dos pacientes fueron diagnosticados con endoftalmitis endógena por K. pneumoniae con confirmación microbiológica de un origen abdominal, uno de ellos por un absceso hepático y el otro por un absceso renal. Ambos pacientes fueron sometidos a vitrectomía precoz, y a antibióticos intravítreos/intravenosos, no obstante uno requirió evisceración y el otro presentó una agudeza visual de percepción de luz. Conclusiones e importancia: K. pneumoniae es la primera causa de endoftalmitis endógena en Asia oriental, pero es poco frecuente en los países occidentales. Sin embargo su prevalencia en esta última población parece estar aumentando en asociación con las variantes hipermucoviscosas e hipervirulentas de este microorganismo. La detección temprana y el tratamiento temprano de esta enfermedad son fundamentales para preservar la anatomía del ojo.

Objective: To report two cases of hypermucoviscous Klebsiella pneumoniae endogenous endophthalmitis and to review the clinical characteristics of this aggressive disease whose prevalence appears to be increasing in western countries. Observations: Two patients were diagnosed with K. pneumoniae endogenous endophthalmitis with microbiological confirmation of an abdominal source, one from a hepatic abscess and the other with a renal abscess. Both patients underwent early vitrectomy, and intravitreal/intravenous antibiotics, nonetheless one required evisceration and the other presented a postoperative visual acuity of light perception. Conclusions and importance: K. pneumoniae is the first cause of endogenous endophthalmitis in eastern Asia, but it is rare in western countries. Nevertheless, its prevalence in the latter population appears to be increasing in association with the hypermucoviscous and hypervirulent variants of this microorganism. The early detection and early management of this disease are pivotal to preserve the anatomy of the eye.

Incidence of endophthalmitis post cataract surgery in a tertiary hospital of Buenos Aires / Incidencia de endoftalmitis post cirugía de catarata en un hospital de tercer nivel en Buenos Aires

Abstract Objective: Acknowledging the rates of endophthalmitis after cataract surgery is very important to understand the seriousness of the disease. Until now, there is no data of this situation in Argentina. The aim of this study was to estimate the incidence of postoperative endophthalmitis after cataract surgery at a tertiary hospital, a medical facility which provides a high degree of subspecialty expertise, in Buenos Aires, Argentina. Method: Retrospective cohort study of adult patients who underwent cataract phacoemulsification sur gery between 2006 and 2020 at Hospital Italiano de Buenos Aires, was performed. Patients with endophthalmitis diagnosis within the first 6 weeks after surgery were included. Those who underwent extracapsular surgery or combined surgeries were excluded. Results: A total of 29 326 cataract surgeries were performed in ten years. The annual incidence of acute postoperative endophthalmitis after cataract surgery was 0.102% (95% CI 0.069-0.146). Thirty cases of endophthalmitis were diagnosed. The main microorganism was Pseudomonas aeruginosa (45.4%). Final visual acuity was higher than 0.3 (LogMAR) in 46.6% of the patients. Conclusion: The incidence of endophthalmitis after cataract surgery in this hospital is within the range reported globally. Knowing the regional incidence contributes to decide if new prophylaxis measures are necessary.

Resumen Objetivo: Conocer las tasas de endoftalmitis después de la cirugía de cataratas es muy importante para comprender la gravedad de la enfermedad. Hasta el momento, no hay datos de su situación en Argentina. El objetivo de este estudio fue estimar la incidencia de endoftalmitis postoperatoria tras cirugía de catarata en un hospital de tercer nivel o alta complejidad de Buenos Aires, Argentina. Método: Se realizó un estudio de cohorte retrospectivo de pacientes adultos operados de facoemulsificación de cataratas entre 2006 y 2020 en el Hospital Italiano de Buenos Aires. Se incluyeron pacientes con diagnóstico de endoftalmitis dentro de las prime ras 6 semanas posteriores a la cirugía. Se excluyeron los pacientes que se sometieron a cirugía extracapsular o cirugías combinadas. Resultados: En diez años se realizaron un total de 29.326 operaciones de cataratas. La incidencia anual de endoftalmitis postoperatoria aguda después de la cirugía de cataratas fue del 0.102% (IC del 95%: 0.069-0.146). Treinta casos de endoftalmitis fueron identificados. El principal microorganismo fue Pseudomonas aeruginosa (45.4%). La agudeza visual final fue superior a 0.3 (LogMAR) en el 46.6% de los pacientes. Conclusión: La incidencia de endoftalmitis después de la cirugía de cataratas en este hospital está dentro del rango reportado a nivel mundial. Conocer la incidencia regional contribuye a decidir si son necesarias nuevas medidas de profilaxis.

Incidencia de infecciones relacionadas a la bula de filtración en pacientes con trabeculectomía / Incidence of Filtration Bullae-related Infections in Trabeculectomy Patients

Objetivo: Determinar la incidencia de infecciones relacionadas a la bula de filtración en pacientes sometidos a trabeculectomía; así como su comportamiento clínico. Métodos: Se realizó un estudio descriptivo longitudinal y retrospectivo. El universo estuvo comprendido por 1320 ojos con trabeculectomía y muestra conformada por 7 ojos con diagnóstico de infección relacionada a la bula de filtración operados en el Centro Oftalmológico de Villa Clara desde enero del 2012 hasta diciembre del 2021. Resultados: La incidencia global de infección en la bula de filtración fue de 0,53 por ciento. La incidencia de blebitis y de blebitis-endoftalmitis fue 0,15 por ciento y 0,38 por ciento, respectivamente. Los hombres fueron los más afectados y la edad media fue de 64,7 años. En todos los casos, la infección se presentó de forma tardía con una media de 4,1 años. El 57,1 por ciento tuvo una agudeza visual mejor corregida al inicio de la infección de movimiento de manos. Se reportó crecimiento bacteriano en un 57,1 por ciento, el estafilococo coagulasa negativo fue el germen más frecuente. El control de la infección se logró en 6 pacientes mientras 2/3 de ellos no tuvo mejoría de la agudeza visual mejor corregida a la resolución de la infección, todos con blebitis-endoftalmitis. Conclusiones: Las infecciones relacionadas a la bula de filtración son poco comunes. Se presentan con frecuencia años después de la cirugía filtrante y con mala agudeza visual. Los ojos con blebitis-endoftalmitis tienen una pobre recuperación visual a pesar del tratamiento(AU)

Purpose: To determine the incidence of filtration bullae-related infections in patients undergoing trabeculectomy; as well as their clinical behavior. Methods: A longitudinal and retrospective descriptive study was performed. The universe was comprised of 1320 eyes with trabeculectomy and the sample consisted of 7 eyes with a diagnosis of infection related to the filtration bulla operated at the Villa Clara Ophthalmologic Center between January 2012 and December 2021. Results: The overall incidence of infection in the filtration bullae was 0.53 percent. The incidence of blebitis and blebitis-endophthalmitis was 0.15 percent and 0.38 percent, respectively. Males were the most affected and the average age was 64.7 years. In all cases, the infection presented late with a average age of 4.1 years. Fifty-seven point one percent had best corrected visual acuity at the onset of hand motion infection. Bacterial growth was reported in 57.1 percent, coagulase negative staphylococcus was the most frequent germ. Infection control was achieved in 6 patients while 2/3 of them had no improvement of best corrected visual acuity at resolution of infection, all with blebitis-endophthalmitis. Conclusions: Infections related to filtration bullae are uncommon. They occur frequently years after filtering surgery and with poor visual acuity. Eyes with blebitis-endophthalmitis have poor visual recovery despite treatment(AU)

Scedosporium aurantiacum: First isolation in Argentina from a previously healthy patient after traumatic inoculation / Scedosporium aurantiacum: primer aislamiento en Argentina de un paciente previamente sano después de una inoculación por un traumatismo

Abstract Scedosporium/Lomentospora species are widely distributed in nature. They are gen-erally saprophytes, but can cause opportunistic infections in immunocompromised patients and occasionally in immunocompetent patients that are difficult to treat due to high lev-els of antifungal resistance. The distribution of Scedosporium/Lomentospora species shows regional differences. Scedosporium boydii and Scedosporium apiospermum are the most fre-quently isolated species in our region, whereas Scedosporium aurantiacum is more common in other regions. We describe the first isolation in Argentina of S. aurantiacum in a vitreous humor infection from a previously healthy patient after traumatic injury in her left eye. Due to the suspicion of fungal endophthalmitis, a mycological study of the vitreous humor was performed. The culture allowed the isolation of S. aurantiacum. The patient was treated with voriconazole with favorable clinic evolution.

Resumen Las especies de Scedosporium/Lamentospora se encuentran ampliamente distribuidas en la naturaleza. En general son saprofitas, pero pueden causar infecciones oportunistas de difícil tratamiento debido a sus altos niveles de resistencia a los antifúngicos en individuos inmunocomprometidos y, ocasionalmente, en personas inmunocompetentes. La distribución de las especies de Scedosporium/Lamentospora muestra diferencias regionales. Scedosporium boydii y S. apiospermum son las especies más frecuentemente aisladas en nuestra región, mientras que en otras S. aurantiacum es más común. Presentamos el primer aislamiento en Argentina de S. aurantiacum de una infección de humor vítreo de un paciente previamente sano que sufrió una lesión traumática. El paciente fue tratado con voriconazol y tuvo una evolución clínica favorable.

Scedosporium aurantiacum: First isolation in Argentina from a previously healthy patient after traumatic inoculation.

Scedosporium/Lomentospora species are widely distributed in nature. They are generally saprophytes, but can cause opportunistic infections in immunocompromised patients and occasionally in immunocompetent patients that are difficult to treat due to high levels of antifungal resistance. The distribution of Scedosporium/Lomentospora species shows regional differences. Scedosporium boydii and Scedosporium apiospermum are the most frequently isolated species in our region, whereas Scedosporium aurantiacum is more common in other regions. We describe the first isolation in Argentina of S. aurantiacum in a vitreous humor infection from a previously healthy patient after traumatic injury in her left eye. Due to the suspicion of fungal endophthalmitis, a mycological study of the vitreous humor was performed. The culture allowed the isolation of S. aurantiacum. The patient was treated with voriconazole with favorable clinic evolution.

Efectividad de la antibioticoterapia sistémica precoz en pacientes con endoftalmitis postraumática / Effectiveness of the early systemic antibiotic therapy in patients with postraumatic endophthalmitis

Introducción: La endoftalmitis postraumática se define como una marcada inflamación de los fluidos y tejidos de las cavidades intraoculares, provocada por la invasión y replicación de microorganismos después de un traumatismo ocular a globo abierto, lo cual puede ocasionar la pérdida de la visión. Objetivo: Evaluar la efectividad de la terapia antibiótica sistémica precoz en pacientes con endoftalmitis postraumática. Métodos: Se efectuó un estudio cuasiexperimental de 72 pacientes con traumatismo ocular a globo abierto, ingresados en el Centro Oftalmológico del Hospital General Docente Dr. Juan Bruno Zayas Alfonso de Santiago de Cuba, desde enero del 2017 hasta mayo del 2019. Se realizó un muestreo aleatorio simple; los pacientes se distribuyeron en 2 grupos: uno de control con 28 integrantes, a los cuales se le administró el tratamiento farmacológico habitual y otro de estudio con 44, quienes además de lo anterior recibieron terapia antibiótica sistémica. Resultados: Predominaron los pacientes masculinos, con edades entre 45 y 54 años (29,5 %); 72,7 % no mostraron antecedentes personales de interés y el trauma ocular ocurrió con más frecuencia en un ambiente rural (77,8 %). La zona 1 fue la más afectada (65,3 %); en 39,3 % de los pacientes la evolución del trauma fue menor de 6 horas, pero en el grupo que no recibió la terapéutica sistémica precoz y presentó endoftalmitis (10,7 %) este tiempo fue mayor, la reparación ocurrió tardíamente. Conclusiones: La terapia antibiótica sistémica precoz fue efectiva en la mayoría de los pacientes que recibieron este tratamiento contra la endoftalmitis postraumática.

Introduction: Postraumatic endophthalmitis is defined as a marked inflammation of the fluids and tissues of the intraocular cavities, caused by the invasion and replication of microorganisms after an ocular traumatism on open globe, that can cause loss of the vision. Objective: To evaluate the effectiveness of the early systemic antibiotic therapy in patients with postraumatic endophthalmitis. Method: A quasi-experiment study of 72 patients with ocular traumatism on open globe was carried out, they were admitted in the Ophthalmologic Center of Dr. Juan Bruno Zayas Alfonso Teaching General Hospital in Santiago de Cuba, from January, 2017 to May, 2019. A simple random sampling was carried out; patients were distributed in 2 groups: one of control with 28 members, that received the habitual pharmacological treatment and a study group with 44 members who received systemic antibiotic therapy besides the above-mentioned. Results: Male patients prevailed, aged between 45 and 54 years (29.5 %); 72.7 % didn't show personal history of interest and the ocular trauma happened with more frequency in a rural atmosphere (77.8 %). The area 1 was the most affected (65.3 %); in 39.3 % of the patients the clínical course of trauma was less than 6 hours, but in the group that didn't receive the early systemic therapy and presented endophthalmitis (10,7 %) this time was higher, the repair happened belatedly. Conclusions: The early systemic antibiotic therapy was effective in most of the patients that received this treatment against the postraumatic endophthalmitis.

Endoftalmitis neonatal secundaria a sepsis neonatal temprana: reporte de caso / Endogenous neonatal endophthalmitis as a complication of early neonatal sepsis: Case report

Introducción: La endoftalmitis neonatal endógena es una complicación rara de la sepsis neonatal que puede llevar a ceguera. Un diagnóstico temprano y un tratamiento agresivo son esenciales para evitar la pérdida visual a largo plazo. Caso: Recién nacido pretérmino con endoftalmitis endógena como complicación tardía de una sepsis neonatal temprana, por deterioro clínico generalizado y persistencia de signos oftalmológicos. Se consideró vitrectomía posterior más antibiótico intravítreo de vancomicina y ceftazidima durante la infusión. A pesar de presentar cultivos negativos, posterior al procedimiento presentó mejoría clínica significativa al fondo de ojo y sistémica. Discusión: En los recién nacidos con sepsis neonatal, especialmente los pretérmino con bajo peso al nacer o con infección por microorganismos multirresistentes (que complican el tratamiento sistémico y aumentan el riesgo de diseminación endógena), debe considerarse la endoftalmitis endógena. La sospecha clínica y la adecuada aproximación diagnóstica de forma temprana, aun con cultivos negativos, permite mejorar el pronóstico visual, como en el caso presentado.

Background: Endogenous neonatal endophthalmitis is an uncommon complication of neonatal sepsis, that can lead to blindness. Early diagnosis and aggressive treatment are essential to avoid long-term visual loss. Case: Pre-term newborn with endogenous endophthalmitis as a late complication of early neonatal sepsis, with negative cultures, but with generalized clinical deterioration and persistence of ophthalmological signs, therefore a posterior vitrectomy plus intravitreal vancomycin and ceftazidime infusion was required. After the procedure, the patient presented significant clinical improvement, at the ophthalmological exam as well as systemically. Discussion: Endogenous endophthalmitis should be considered in newborns with neonatal sepsis, especially preterm babies with low birth weight or with infection by multidrug-resistant microorganisms, which complicate systemic treatment and increase the risk of endogenous dissemination. Clinical suspicion and an adequate early diagnostic approach, even with negative cultures, could improve the visual prognosis, as in the case presented.

Anidulafungin versus fluconazole in the treatment of Candida albicans chorioretinitis.

BACKGROUND: Candida albicans chorioretinitis is the most common cause of endogenous fungal endophthalmitis. Echinocandins are recommended as first-line therapy in the treatment of invasive candidiasis (IC), but in clinically stable patients with IC and endophthalmitis caused by Candida species susceptible to azole compounds these are the first-line treatment due to their better intraocular penetration. CASE REPORT: A 42-year-old woman admitted to hospital for duodenal perforation after gastrointestinal surgery and treated with broad-spectrum antibiotics developed C. albicans candidemia. According to protocol, an antifungal treatment with anidulafungin was given. The patient presented no visual symptoms but on routinary ophthalmoscopic examination multiple bilateral chorioretinal lesions were observed. Systemic therapy was changed to fluconazole, with good systemic and ocular results. CONCLUSIONS: Azole compounds are the first-line therapy for endophthalmitis associated with candidemia. However, clinical guidelines often propose echinocandins as the first option for IC. In some cases, C. albicans chorioretinitis will require a change in the systemic treatment to assure better intraocular penetration. According to the current evidence and our own experience, routine funduscopy is not necessary in all IC patients. However, we do recommend fundus examination in patients with visual symptoms or those unable to report them (paediatric patients and patients with an altered level of consciousness), and in those who are being treated with echinocandins in monotherapy.

Brevibacterium casei endophthalmitis after intravitreal dexamethasone implant.

CLINICAL CASE: 49-year-old man with diabetic macular edema refractory to antiangiogenics, it is decided to perform therapy with intravitreal dexamethasone implant (Ozurdex; Allergan, California, United States of America). Seven days after treatment, he showed acute endophthalmitis suggestive signs. Despite the intravitreal injection of antibiotics, the patient got worse. Vitreous sampling was repeated for Gram and cultures, and vitrectomy was performed via pars plana. The culture suggested the development of Brevibacterium species. Through an additional test, the presence of Brevibacterium casei was confirmed. Despite the treatment adjusted by antibiogram, retinal ischemia and macular atrophy was evident. DISCUSSION: Brevibacterium casei is a Gram-positive bacterium, barely pathogenic, that mainly affects immunodepressed patients. Only two cases of endophthalmitis are described, one endogenous and the other one secondary to vegetal trauma. This is the first case of endophthalmitis, secondary to an ophthalmological procedure.

Anterior uveal fungal abscess in an HIV positive patient.

Endogenous endophthalmitis (EE) accounts for approximately 2% to 8% of all cases of endophthalmitis. Candida albicans abscesses in the iris and ciliary body are a rare form of presentation, with only 3 cases reported up until now. The case is presented of a 27-year-old patient with an elevated lesion in the iris at the temporal zone of the left eye, with hypopyon, pupil membrane, and 4+ cells in the anterior chamber. Tests for syphilis and HIV were positive, and were associated with extraocular manifestations of secondary syphilis. Treatment with intravenous penicillin and HAART therapy were started, but the clinical course worsened after 7 days. Pars plana vitrectomy and an abscess aspiration were performed, and the intraocular fluids and the purulent content were sent for microbiological examination. Cultures were positive for Candida albicans. The case is presented of an anterior uveal abscess by Candida albicans in an HIV-positive patient not previously reported in the literature.

Absceso micótico uveal anterior en paciente VIH positivo / Anterior Uveal Fungal Abscess in an HIV Positive Patient

Los cuadros de endoftalmitis endógenas (EE) son aproximadamente el 2 al 8% de los casos de endoftalmitis. Los abscesos en iris y cuerpo ciliar por Candida albicans son una inusual forma de presentación, habiendo sólo 3 casos publicados. Presentamos el caso clínico de una mujer de 27 años que muestra una lesión tumoral sobreelevada en sector temporal del iris del ojo izquierdo con hipopión, membrana pupilar y 4 + de células en la cámara anterior. Las pruebas para sífilis y VIH son positivas y presentan manifestaciones extraoculares de secundarismo. Inicia tratamiento con penicilina intravenosa y terapia HAART, empeorando el cuadro luego del séptimo día. La paciente es sometida a una vitrectomía por pars plana para el drenaje del absceso y extracción de muestras para estudio microbiológico. Los resultados son positivos para Candida albicans. Presentamos un caso de absceso uveal anterior por Candida albicans en un paciente VIH positivo, sin antecedentes en la literatura. (AU)

Endogenous endophthalmitis (EE) accounts for approximately 2% to 8% of all cases of endophthalmitis. Candida albicans abscesses in the iris and ciliary body are a rare form of presentation, with only 3 cases reported up to now. A 27- year-old woman presented an elevated lesion in the iris root of her left eye, associated with 4 + cells in the anterior chamber, hypopyon and pupillary membrane. Tests for syphilis and HIV were positive, associated with extraocular manifestations of secondary syphilis. Treatment with intravenous penicillin and HAART therapy were started, but the clinical course worsened after 7 days. Pars plana vitrectomy and abscess resection biopsy were performed. The biopsy and intraocular fluids were sent for microbiological examination. Cultures were positive for Candida albicans. The case presented is an anterior uveal abscess by Candida Albicans in an HIV-positive patient that to the authors knowledge, not previously reported in the literature. (AU)

Abordaje interdisciplinario de endoftalmitis endógena neonatal. Reporte de caso / Interdisciplinary approach to endogenous neonatal endophthalmitis. Case report

La endoftalmitis endógena neonatal es una patología poco frecuente que puede causar daño ocular grave. Puede manifestarse en pacientes con comorbilidades, como nacimiento pretérmino, bajo peso al nacer, complicaciones posquirúrgicas perinatales o sepsis.El presente reporte de caso documenta a una paciente pretérmino que fue sometida a múltiples cirugías abdominales. Durante su internación, desarrolló sepsis, meningitis y endoftalmitis endógena neonatal. La frecuencia extremadamente baja de la endoftalmitis endógena a esta edad, la importancia de preservar la salud visual del paciente y el abordaje interdisciplinario son puntos importantes de aprendizaje en este caso.

Neonatal endogenous endophthalmitis is a rare condition that can cause serious eye injuries. It can manifest in patients with comorbidities, such as preterm birth, low birth weight, post-surgical perinatal complications, or sepsis.This case report documents a preterm patient who underwent multiple abdominal surgeries. During her hospitalization, she developed sepsis, meningitis and neonatal endogenous endophthalmitis. The extremely low frequency of endogenous endophthalmitis at this age, the importance of preserving the patient's visual health, and the interdisciplinary approach are important learning points in this case.

Endoftalmitis aguda por Brevibacterium casei tras implante intravítreo de dexametasona / Brevibacterium casei endophthalmitis after intravitreal dexamethasone implant

Caso clínico Hombre de 49años, con edema macular diabético refractario a antiangiogénicos, en el que se realizó terapia intravítrea con implante de dexametasona (Ozurdex; Allergan, California, Estados Unidos). Tras 7días presentó signos sugerentes de endoftalmitis aguda. Pese a la inyección intravítrea de antibióticos, el paciente empeoró. Se repitió la toma de muestras en vítreo para Gram y cultivos, y se realizó vitrectomía vía pars plana. El cultivo sugirió el desarrollo de Brevibacterium species. Mediante una prueba adicional, se confirmó la presencia de Brevibacterium casei. Pese al tratamiento ajustado por antibiograma, se evidenció isquemia retiniana y atrofia macular. Discusión Brevibacterium casei es una bacteria grampositiva, escasamente patógena, que afecta principalmente a inmunodeprimidos. Se han descrito solo dos casos de endoftalmitis, una endógena y otra secundaria a trauma vegetal. Este es el primer caso de endoftalmitis por Brevibacterium casei secundaria a procedimiento oftalmológico (AU)

Clinical case A 49-year-old man with diabetic macular edema refractory to antiangiogenics was treated with intravitreal dexamethasone implant (Ozurdex; Allergan, California, USA). Seven days after treatment, he showed acute endophthalmitis suggestive signs. Despite the intravitreal injection of antibiotics, the patient got worse. Vitreous sampling was repeated for Gram and cultures, and vitrectomy was performed via pars plana. The culture suggested the development of Brevibacterium species. Through an additional test, the presence of Brevibacterium casei was confirmed. Despite the treatment adjusted by antibiogram, retinal ischemia and macular atrophy was evident. Discusion Brevibacterium casei is a Gram-positive bacterium, barely pathogenic, that mainly affects immunodepressed patients. Only two cases of endophthalmitis are described, one endogenous and the other one secondary to vegetal trauma. This is the first case of Brevibacterium casei endophthalmitis, secondary to an ophthalmological procedure (AU)

Brevibacterium casei endophthalmitis after intravitreal dexamethasone implant. / Endoftalmitis aguda por Brevibacterium casei tras implante intravítreo de dexametasona.

CLINICAL CASE: A 49-year-old man with diabetic macular edema refractory to antiangiogenics was treated with intravitreal dexamethasone implant (Ozurdex; Allergan, California, USA). Seven days after treatment, he showed acute endophthalmitis suggestive signs. Despite the intravitreal injection of antibiotics, the patient got worse. Vitreous sampling was repeated for Gram and cultures, and vitrectomy was performed via pars plana. The culture suggested the development of Brevibacterium species. Through an additional test, the presence of Brevibacterium casei was confirmed. Despite the treatment adjusted by antibiogram, retinal ischemia and macular atrophy was evident. DISCUSION: Brevibacterium casei is a Gram-positive bacterium, barely pathogenic, that mainly affects immunodepressed patients. Only two cases of endophthalmitis are described, one endogenous and the other one secondary to vegetal trauma. This is the first case of Brevibacterium casei endophthalmitis, secondary to an ophthalmological procedure.

Delayed-onset bleb-related endophthalmitis caused by Moraxella nonliquefaciens. / Endoftalmitis de inicio tardío asociada a ampolla de filtración por Moraxella nonliquefaciens.

Bleb-related endophthalmitis is rare and appears months or years after surgery. The causative agents are usually streptococci or gram-negative bacteria. There are few cases in the literature of endophthalmitis caused by Moraxella nonliquefaciens, and most are delayed-onset associated with blebitis after glaucoma filtration surgery. The case is presented of a 90-year-old patient with endophthalmitis in the right eye due to Moraxella nonliquefaciens associated with blebitis 10 years after glaucoma surgery. After treatment, disappearance of blebitis is observed 2weeks later and resolution of vitritis 29 days later, with recovery of vision to previous values (20/200). Endophthalmitis due to Moraxella nonliquefaciens is rare, and is associated with late onset blebitis after glaucoma filtration surgery. Despite the virulence of the clinical symptoms, the visual prognosis is usually favourable.