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Teaching neuroimages: infant with glutaric aciduria type 1 presenting with infantile spasms and hypsarrhythmia
Nichole Young-Lin1, Sarah Shalev, Orit A Glenn
1From the University of California, San Francisco School of Medicine (N.Y.-L.); Division of Epilepsy (S.S.) and Division of Child Neurology (M.G., A.A.G.), Department of Neurology; Division of Pediatric Neuroradiology (O.A.G.), Department of Radiology; and Division of Medical Genetics (C.L., A.W.-B.), Department of Pediatrics (A.A.G.), University of California, San Francisco.
Insights
Glutaric aciduria type 1 (GA1) can cause infantile spasms and basal ganglia injury. Early prednisolone treatment may help resolve these symptoms in infants with GA1.
Area of Science:
- Neuroscience
- Metabolic Disorders
- Pediatric Neurology
Background:
- Glutaric aciduria type 1 (GA1) is a rare inherited metabolic disorder.
- It affects neurotransmitter metabolism, potentially leading to neurological complications.
- Infantile spasms are a severe form of epilepsy in infants.
Observation:
- A 7-month-old boy diagnosed with GA1 presented with infantile spasms and axial hypotonia.
- Video-EEG confirmed hypsarrhythmia, and MRI revealed acute basal ganglia injury.
- The patient had no signs of encephalopathy at presentation.
Findings:
- Prednisolone treatment for 3 weeks led to the resolution of hypsarrhythmia and infantile spasms.
- A 5-month follow-up confirmed the continued absence of these neurological symptoms.
- This suggests a potential therapeutic role for prednisolone in GA1-associated epilepsy.
Implications:
- Early diagnosis and treatment of GA1 are crucial for preventing severe neurological damage.
- Prednisolone may be an effective treatment option for infantile spasms in GA1 patients.
- Further research is warranted to explore the efficacy and mechanisms of steroid treatment in GA1-related neurological manifestations.
Abstract:
A 7-month-old boy with glutaric aciduria type 1 (GA1) presented with 1 week of clustered flexor spasms. Examination revealed mild axial hypotonia without encephalopathy. Video-EEG monitoring revealed hypsarrhythmia and infantile spasms (figure, A). MRI showed acute basal ganglia injury (figure, B). After 3 weeks of prednisolone treatment, 5-month follow-up showed continued resolution of hypsarrhythmia and spasms.
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