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Published on: September 23, 2022
[Herpes encephalitis at children]
Małgorzata Poliszuk-Siedlecka1, Katarzyna Wojaczyńska-Stanek, Ewa Jamroz
1Kliniki Pediatrii i Neurologii, Wieku Rozwojowego Katedry Pediatrii, Slaskiej Akademii Medycznej w Katowicach.
Insights
Herpetic encephalitis in children can lead to severe outcomes. Early diagnosis and treatment are crucial, even before laboratory confirmation, to improve patient prognosis and reduce neurological sequelae.
Area of Science:
- Pediatric Neurology
- Infectious Diseases
- Neurovirology
Context:
- Herpetic encephalitis, caused by Herpes simplex virus (HSV), presents a significant risk of mortality and long-term neurological damage in children.
- Delayed diagnosis and treatment are primary contributors to poor outcomes in pediatric cases.
Purpose:
- This paper analyzes the clinical course of seven pediatric patients diagnosed with herpetic encephalitis between 1999 and 2001.
- The study aims to highlight key clinical presentations and diagnostic findings in children with this rare but severe neuroinfection.
Summary:
- Clinical symptoms included fever, headache, vomiting, altered consciousness, and neurological deficits such as hemiparesis and aphasia.
- Diagnostic methods employed were lumbar puncture, serological tests for HSV IgG and IgM antibodies, PCR for HSV DNA in cerebrospinal fluid (CSF) and serum, and MRI of the head.
- While HSV DNA and antibodies in CSF were found in the most severely affected children, early clinical suspicion is vital.
Impact:
- The findings underscore the importance of considering herpetic encephalitis in children presenting with neuroinfection symptoms.
- Prompt initiation of treatment, even prior to definitive laboratory confirmation, can significantly improve patient outcomes and mitigate permanent neurological sequelae.
Abstract:
Significant mortality, high incidences of complications and permanent neurological sequel are still noted in patients suffering fro herpetic encephalitis. They result mainly from delayed diagnosis and treatment of the specific cause. The aim of our paper was the analysis o a clinical course of patients with Herpes simplex encephalitis. From 1999 to 2001 7 patients aged 2 weeks to 15 years, treated in Children' Neurology Department of Silesian School of Medicine, were diagnosed to have herpetic encephalitis. Fever, headache, vomiting, as well as alteration of consciousness, all typical for neuroinfection were main clinical symptoms present on admission. Three children presented with respiratory distress requiring admission to Intensive Care Unit. On examination "cold sores" were found in 2 patients, in remaining 5 the history of exposition to herpes labialis was obtained. On neurological examination we found either right or left hemiparesis in all patients, motor aphasia in 2 and left sided central facial nerve palsy in 1. Lumbar puncture revealed lymphocytosis in 5 patients. Anti-HSV type IgG an IgM antibodies were found in serum of all 6 patients, while only in 2 of them were detected in cerebrospinal fluid (CSF). These were the 2 most severely ill children. In 2 patients DNA HSV using PCR (polymerase chain reaction) method was found in CSF and in serum. Magnetic resonance imaging (MRI) of the head confirmed diagnosis. Although herpetic encephalitis is an uncommon, sporadic disease, the diagnosis should be considered in any child with neuroinfection and early treatment started before laboratory confirmation.
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