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A Murine Model of Dengue Virus-induced Acute Viral Encephalitis-like Disease
Published on: April 28, 2019
Congenital dengue with detection of viral RNA in cerebrospinal fluid: A case report
Felipe Cabezón Jarvis1, Valentina Medrano Paz1, Mariana Rodríguez Braumüller2
1Department of Pediatrics; Hospital Británico de Buenos Aires, Autonomous City of Buenos Aires, Argentina.
Abstract:
Dengue virus infection is the most common arbovirus disease worldwide, and its spread has increased the relevance of less common forms, such as vertical transmission. Congenital dengue poses a diagnostic challenge due to its nonspecific presentation and overlap with late-onset sepsis. Transmission occurs during maternal viremia, especially when the infection occurs in the days leading up to delivery, and may present with fever and hematological abnormalities. We present the case of a 35-week preterm newborn, the daughter of a mother with confirmed dengue before delivery, who developed a fever and hyporesponsiveness on the seventh day. Detection of viral RNA via polymerase chain reaction in serum and cerebrospinal fluid confirmed the infection. She developed thrombocytopenia and coagulation abnormalities, with normal neurological findings and a favorable clinical course. This case highlights the importance of considering congenital dengue in neonatal sepsis when appropriate clinical settings are present.
Abstract:
La infección por el virus dengue es la arbovirosis más frecuente a nivel mundial y su expansión ha incrementado la relevancia de formas menos habituales, como la transmisión vertical. El dengue congénito representa un desafío diagnóstico por su presentación inespecífica y superposición con sepsis tardía. La transmisión ocurre durante la viremia materna, especialmente cuando la infección se presenta en los días previos al parto, y puede manifestarse con fiebre y alteraciones hematológicas. Se presenta una recién nacida pretérmino de 35 semanas, hija de madre con dengue confirmado antes del nacimiento, que al séptimo día desarrolló fiebre e hiporreactividad. La detección de ARN viral mediante reacción en cadena de la polimerasa en suero y líquido cefalorraquídeo confirmó la infección. Evolucionó con trombocitopenia y alteración del coagulograma, con estudios neurológicos normales y evolución favorable. Este caso resalta la importancia de considerar dengue congénito ante sepsis neonatal en contextos compatibles.
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