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Published on: July 4, 2007
Clinical profile of acute disseminated encephalomyelitis in children
M P Jayakrishnan1, P Krishnakumar
1Department of Pediatrics, Institute of Maternal and Child Health, Medical College, Calicut, Kerala, India.
Insights
Acute disseminated encephalomyelitis (ADEM) in children typically presents after a febrile illness and involves neurological and psychological symptoms. Despite severe initial manifestations, most children achieve full recovery, though long-term follow-up is recommended.
Area of Science:
- Pediatric Neurology
- Neuroimmunology
- Clinical Pediatrics
Background:
- Acute disseminated encephalomyelitis (ADEM) is an immune-mediated demyelinating disease affecting the central nervous system.
- ADEM in children presents with a diverse range of neurological and psychological symptoms following an infection or vaccination.
Purpose of the Study:
- To elucidate the clinical characteristics and diagnostic features of acute disseminated encephalomyelitis (ADEM) in a pediatric cohort.
- To evaluate the treatment response and long-term outcomes of children diagnosed with ADEM.
Main Methods:
- Retrospective analysis of pediatric patients diagnosed with ADEM based on clinical presentation and MRI findings.
- Treatment involved intravenous methylprednisolone followed by oral prednisolone.
- Patients were monitored for up to three and a half years post-diagnosis.
Main Results:
- The study included 14 children (79% female), aged 6 months to 12 years.
- Neurological symptoms, including altered sensorium, cranial nerve palsies (most commonly facial nerve), and motor deficits, were prevalent.
- Psychological manifestations such as aggressive behavior and psychotic symptoms were observed; all children achieved full recovery, with one developing multiphasic disseminated encephalomyelitis (MDEM).
Conclusions:
- ADEM in children, despite significant neuropsychiatric involvement, generally shows a favorable immediate prognosis.
- Long-term follow-up is crucial for identifying and managing potential cognitive impairments in pediatric ADEM survivors.
Aim:
To study the clinical profile of acute disseminated encephalomyelitis (ADEM) in children.
Materials And Methods:
All children admitted with ADEM during a period of one and a half years were included in the study. The diagnosis of ADEM was made based on the clinical presentation and suggestive MRI findings. All children were treated with intravenous methyl prednisolone, followed by oral prednisolone and followed up for varying periods up to three and a half years.
Results:
The sample consisted of 14 children with 11(79%) girls and 3 (21%) boys. The oldest child was 12 years and the youngest was a six-month-old infant. Acute febrile illness preceded the onset of neurological symptoms in 64% of children. The interval between the preceding illness and symptoms of ADEM varied from 7 days to 28 days (mean 12 days). The common presenting symptoms were fever, vomiting, headache, gait disturbance and generalized seizures. Neurological manifestations included altered sensorium, multiple cranial nerve involvement, quadriplegia and paraplegia, dystonia and choreiform movements, nystagmus, bladder involvement (both incontinence and retention), speech defect and double vision. Facial nerve was the most common cranial nerve involved. Psychological manifestations included aggressive behavior, psychotic symptoms and mood changes. One child each had features of acute psychotic episode and depressive episode. All children recovered fully. One child had multiphasic disseminated encephalomyelitis (MDEM) on follow up.
Conclusion:
Despite the serious neuropsychiatric manifestations, ADEM in children generally has good immediate outcome. Children with ADEM need long-term follow up for cognitive impairments.
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