EBV-ENCEPHALITIS IN CHILDREN: DIAGNOSTIC CRITERIA

Area of Science:

• Pediatric Neurology
• Infectious Diseases
• Neuroimaging

Background:

• Epstein-Barr virus (EBV) is a common human herpesvirus.
• EBV infection can lead to serious neurological complications, including encephalitis, particularly in children.
• Understanding the clinical spectrum and diagnostic criteria for EBV encephalitis is crucial for effective management.

Purpose of the Study:

• To investigate the clinical characteristics of EBV infection affecting the pediatric nervous system.
• To utilize laboratory methods and brain MRI data for diagnosis and characterization.
• To differentiate between acute and chronic forms of EBV encephalitis in children.

Main Methods:

• Study included 41 children diagnosed with EBV encephalitis (age range: 8 months to 17 years).
• Diagnosis was based on clinical presentation, medical history, laboratory tests (ELISA, PCR for EBV), and brain MRI.
• Key diagnostic features included general infection symptoms, cerebral syndromes, and focal neurological deficits.

Main Results:

• EBV encephalitis predominantly results from reactivation of persistent EBV infection (85%) rather than primary infection (15%).
• Two main clinical courses were identified: acute (63%) and chronic (37%).
• Proposed criteria for differentiating acute and chronic forms incorporate anamnesis, clinical signs, and MRI findings.

Conclusions:

• The study proposes specific criteria for distinguishing acute and chronic EBV encephalitis in pediatric patients.
• These criteria can facilitate earlier and more precise diagnosis of EBV encephalitis in children.
• Accurate diagnosis is essential for appropriate treatment and management of neurological complications.