Related Experiment Video
Updated: Nov 8, 2025
Author Spotlight: Evaluating the Adjuvant Efficacy and Safety of Angong Niuhuang Pill in Viral Encephalitis Treatment
Published on: April 19, 2024
Diagnosis and Therapy of Infectious Encephalitis in Children: A Ten-Years Retrospective Study
Davide Pata1,2, Danilo Buonsenso3,4,5, Giampiero Frasca1
1From the Istituto di Pediatria, Università Cattolica del Sacro Cuore, Rome, Italy.
Insights
Pediatric encephalitis has varied symptoms and causes, often unclear. Magnetic resonance imaging (MRI) is crucial for diagnosis and predicting outcomes in children with this severe condition.
Area of Science:
- Pediatrics
- Neurology
- Infectious Diseases
Background:
- Infectious encephalitis is a rare but severe condition in children.
- Limited international data exists on pediatric encephalitis.
Purpose of the Study:
- To review clinical presentation, diagnostic findings, and outcomes in pediatric encephalitis.
- To explore correlations between diagnostic exams and patient outcomes.
- To analyze therapies used for pediatric encephalitis.
Main Methods:
- Retrospective study of 56 pediatric patients.
- Analysis of clinical, laboratory, radiological, and neurophysiological data.
- Correlation of diagnostic findings with neurological sequelae and outcomes.
Main Results:
- 19.6% of pediatric patients experienced neurological sequelae.
- Herpes Simplex Virus (HSV) was the most common pathogen identified (19.6%), but etiology remained undefined in most cases.
- Brain MRI showed abnormalities in 62.5% of cases and was the only parameter significantly associated with neurological sequelae (P=0.01).
Conclusions:
- Pediatric encephalitis presents heterogeneously with non-specific findings and often undefined etiologies.
- Brain MRI is vital for diagnosis and prognosis and should be more accessible.
- Further research is needed to clarify the role and timing of steroid therapy.
Background:
Infectious encephalitis represents a rare but potentially severe clinical condition. However, limited international data are available in pediatric age.
Methods:
We conducted a retrospective study to review (a) the clinical presentation; (b) laboratory, radiology, and neurophysiology findings; (c) the correlations between these exams and outcome; and (d) the therapy performed.
Results:
Fifty-six patients were enrolled [22 female (39.6%), mean age 4.7 years, IQR 0.7-8.7 years], 19.6% presented neurologic sequelae. HSV was the single most frequently isolated pathogen (19.6%), although in most cases, the etiology remained undefined. 41.1% children presented prodromal before the development of neurologic signs. Fever was the most frequent constitutional symptom (83.9% of cases). Cerebrospinal fluid was normal in 48.5% of cases and electroencephalograpy in 24.5% cases. Brain computed tomography scans was normal in 33 (91.7%) cases, while cerebral magnetic resonance imaging (MRI) showed pathologic findings in 62.5% of cases. MRI was the only parameter associated with neurologic sequalae [P = 0.01; OR, 8.1 (95% CI: 1.52-42.84)].
Conclusions:
Pediatric encephalitis is a heterogeneous entity with nonspecific clinical and laboratory findings, with undefined etiologies in most times. MRI can play a primary role, both on a diagnostic and prognostic point-of-view, and its role should be implemented and made more accessible. Further studies are needed to define the exact role and timing of steroids.
