Related Experiment Video
Updated: May 30, 2026

A Murine Model of Dengue Virus-induced Acute Viral Encephalitis-like Disease
Published on: April 28, 2019
[Prognoses of acute encephalopathy]
Mana Kurihara1, Toshitaka Kohagizawa, Manabu Yoshihashi
1Department of Pediatrics, Kanagawa Rehabilitation Center, Atsugi, Kanagawa.
Insights
This study followed 103 children with acute encephalopathy, finding that higher severity during the acute stage correlated with increased long-term disabilities, including cognitive and motor impairments.
Area of Science:
- Pediatric Neurology
- Neuroscience
- Infectious Diseases
Context:
- Acute encephalopathy affects children, leading to significant neurological sequelae.
- Understanding long-term outcomes is crucial for effective management and prognosis.
Purpose:
- To investigate the long-term prognoses of children diagnosed with acute encephalopathy.
- To correlate acute clinical courses with the severity and type of resulting disabilities.
Summary:
- 103 children with acute encephalopathy were classified into five groups based on acute-stage clinical presentation.
- Disabilities included mental retardation (89.3%), higher cortical dysfunction (77.7%), and epilepsies (68.9%).
- Higher severity during the acute phase (Groups 1-5) corresponded to increased neurological disability.
Impact:
- Identifies key risk factors and prognostic indicators for acute encephalopathy in children.
- Highlights the prevalence of significant cognitive and neurological deficits, emphasizing the need for early intervention and support.
- Provides a basis for developing targeted therapeutic strategies to mitigate long-term consequences.
Abstract:
We investigated the prognoses of 103 children with acute encephalopathy at more than one year from the onset. The patients were divided into five groups according to the clinical courses during the acute stage;group 1:1 case with metabolic disorder, group, 2:24 with cytokine storms, group, 3:68 with prolonged convulsion more than 30 minutes, group, 4:5 with severe refractory status epilepticus, and group, 5:5 with the main symptom of impaired consciousness. We checked the past histories, etiologies, severities of consciousness loss, complications and disabilities including higher cortical dysfunction in their medical charts. The average age of onset in all cases was 3 years, with the highest age of 6 years 5 months in group 4. Regarding the past histories, febrile seizures, asthma and theophylline medication were prominent though they were not significantly different. Regarding etiologies, influenza infection, 36 cases, and HHV-6 infection, 7 cases, were prominent though they were not significantly different. Complicating disabilities comprised mental retardation, 89.3%, higher cortical dysfunction, 77.7%, epilepsies, 68.9%, and motor disturbance, 27.2%. The severity of disabilities increased in the order of 1, 2, 3, 4, 5. Attention deficit and visiospacial disturbance were the main symptoms of higher cortical dysfunction.
Related Concept Videos
Hepatic Encephalopathy
Encephalitis ll: Pathophysiology
Encephalitis l: Introduction
Dementia l: Introduction
Arboviral Encephalitis
Brain Abscess l: Introduction
