Neisseria gonorrhoeae: un agente causal infrecuente de celulitis periorbitaria en un niño / Neisseria gonorrhoeae: an infrequent causal agent of periorbital cellulitis in a child

La celulitis periorbitaria es una patología muy frecuente en la población pediátrica. Se define como la infección que compromete los tejidos blandos adyacentes a la órbita sin atravesar el septum orbitario. Después de la introducción de la vacuna contra Haemophilus influenzae, los patógenos involucrados, generalmente, son cocos Gram-positivos. A continuación, se presenta un caso de celulitis periorbitaria asociada a conjuntivitis purulenta por Neisseria gonorrhoeae en un niño de 2 años y 10 meses. Existen pocos casos descritos en la literatura en los que este microorganismo aparece como agente causal de celulitis periorbitaria. Con este caso, se quiere resaltar la importancia de la toma de cultivo en los pacientes que concomitantemente presenten conjuntivitis bacteriana y secreción purulenta, ya que esto facilitó el diagnóstico de esta patología por un agente etiológico poco frecuente.

Periorbital cellulitis is a very common disease in pediatric population, it describes an infection involving the adjacent soft tissues anterior to the orbital septum. Pathogens involved are generally Gram-positive cocci after introduction of Haemophilus influenzae vaccine. We report a case of Neisseria gonorrhoeae periorbital cellulitis associated with bacterial conjunctivitis in a child. There are few cases reported in the literature with this microorganism as the causal agent. With this case, we would like to emphasize the importance to do a culture of the ocular secretion (if it exists) because this allowed us to determine an infrequent agent of this disease.

Celulitis orbitaria complicada por absceso subperióstico debido a infección por Streptococcus pyogenes / Orbital cellulitis complicated by subperiosteal abscess due to Streptococcus pyogenes infection

Resumen: Introducción: La celulitis orbitaria es una enfermedad infecciosa muy frecuente en la edad pediátrica que puede provocar el desarrollo de severas complicaciones. Los principales microorganismos involucrados son Staphylococcus aureus, Streptococcus pneumoniae, Haemophilus influenzae y Moraxella catarrhalis, que juntos corresponden al 95% de los casos. También se pueden presentar Streptococcus beta hemolíticos y microorganismos anaerobios, que corresponden a menos del 5% de los casos. Se presenta un caso poco frecuente de celulitis orbitaria complicada por absceso subperióstico ocasionado por Streptococcus pyogenes (estreptococo beta hemolítico del grupo A). Caso clínico: Paciente masculino de 9 años de edad con antecedente de trastorno por déficit de atención e hiperactividad desde los 5 años de edad. Inició su padecimiento actual por presentar eritema en canto externo del ojo derecho; posteriormente, aumento de volumen periorbicular con limitación de apertura palpebral, progresión a proptosis, dolor a los movimientos oculares y secreción conjuntival purulenta. Los estudios de imagen subperióstico reportaron absceso y preseptal derecho con celulitis extraocular. Se inició manejo empírico con antibióticos, drenaje quirúrgico y cultivo del material purulento. De este, se aisló Streptococcus pyogenes. Conclusiones: Debido a la implementación de los esquemas de vacunación desde la década de los 90 contra H. influenza y S. pneumoniae, los casos por estos patógenos han disminuido, provocando que nuevas bacterias tomen su lugar como causantes de la infección. La importancia de considerar a S. pyogenes como etiología de celulitis orbitaria radica en la rápida progresión para la formación de abscesos, así como los pocos casos descritos en la literatura.

Abstract: Background: Orbital cellulitis is an infectious disease that is very common in pediatric patients, in which severe complications may develop. Etiological agents related to this disease are Haemophilus influenzae B, Staphylococcus aureus, Streptococcus pneumoniae and Moraxella catarrhalis, which correspond to 95% of cases. Moreover, Streptococcus beta hemolytic and anaerobic microorganisms may also be present corresponding to < 5% of the cases. We present an uncommon case of cellulitis complicated by sub-periosteal abscess caused by Streptococcus pyogenes (Group A beta hemolytic streptococcus). Case report: A 9-year-old male patient with a history of deficit disorder and hyperactivity since 5 years of age. His current condition started with erythema in the external edge of the right eye, increase in peri-orbicular volume with limitation of eyelid opening, progression to proptosis, pain with eye movements and conjunctival purulent discharge. Image studies reported subperiosteal abscess and preseptal right with extraocular cellulitis. The patient started with empirical antibiotic treatment, surgical drainage and culture of purulent material from which Streptococcus pyogenes was isolated. Conclusions: Due to the implementation of vaccination schemes against H. influenza and S. pneumoniae since the 90s, the cases by these pathogens have decreased, causing new bacteria to take place as the cause of the infection. The importance of considering S. pyogenes as an etiology of orbital cellulitis is the rapid progression to abscess formation, and the few cases described in the literature.

Celulitis orbitaria neonatal por Staphylococcus aureus meticilinorresistente de la comunidad / Staphylococcus aureus methicillin-resistant community acquired neonatal orbital cellulitis

La celulitis orbitaria es una patología del niño mayor y raramente compromete al período neonatal. Staphylococcus aureus (SA) es el principal agente etiológico relacionado. El diagnóstico precoz y el tratamiento adecuado mejoran el pronóstico. Se presentan tres recién nacidos con celulitis orbitaria por SA meticilinorresistente de la comunidad (SAMR-CO).

Orbital cellulitis typically occurs in older children, but it can occasionally affect infants and neonates. Staphylococcus aureus is the main pathogen isolated. Outcome depends on an adequate initial approach. We report three neonates with orbital cellulitis caused by community- associated MRSA.

Nine years’ review on preseptal and orbital cellulitis and emergence of community–acquired methicillin-resistant Staphylococus aureus in a tertiary hospital in India.

Context: Preseptal cellulitis is the commonest orbital disease which frequently needs to be differentiated from orbital cellulitis. Prompt diagnosis and treatment with appropriate antibiotics can prevent vision loss and life-threatening complications of orbital cellulitis. Aims: To describe the clinical profile of cases with preseptal and orbital cellulitis admitted to a tertiary care hospital during a period of nine years. The causative organisms and the clinical outcome were analyzed. Settings and Design: Retrospective descriptive case study done in a tertiary care hospital in South India. Material and Methods: The in-patient records of patients with preseptal and orbital cellulitis were reviewed from 1998 to 2006. The factors reviewed included ocular findings aiding in the distinction of the two clinical conditions, the duration of symptoms, the duration of hospital stay, microbiological culture report of pus or wound swab, blood culture, drugs used for treatment, the response to therapy and complications. Statistical Analysis Used: Descriptive analysis. Results: One hundred and ten cases, 77 patients with preseptal cellulitis and 33 patients with orbital cellulitis were reviewed. Five percent of children and 21% of adults presented with cutaneous anthrax contributing to preseptal cellulitis. Thirty-nine percent cases with orbital cellulitis were caused by methicillin-resistant Staphylococcus aureus (MRSA). Conclusions: This study has helped in identifying organisms which cause orbital infections, especially community-acquired MRSA. It indicates the need for modifying our empirical antimicrobial therapy, especially in orbital cellulitis.

Understanding pediatric bacterial preseptal and orbital cellulitis

Pediatric preseptal and orbital cellulitis are infectious disorders that result in periorbital inflammation. Preseptal cellulitis is often associated with breaches in the skin barrier whereas orbital cellulitis is commonly associated with paranasal sinusitis. Orbital cellulitis may be associated with subperiosteal abscess. It is important to distinguish between preseptal from orbital cellulitis. Clinical examination and diagnostic imaging are useful in determining appropriate management. Patients are usually treated with broad spectrum antibiotics and surgery when indicated