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[Familial hemiplegic migraine of childhood]
Abstract:
Familial hemiplegic migraine is a rare autosomal, dominant, migraine subtype. It is characterized by acute episodes of hemiplegia and hemisensory deficits, and other neurological abnormalities occurring either before or together with severe headache, nausea and vomiting; episodes last several hours and then spontaneously subside. Intervals between episodes are relatively prolonged. Unless there is a relevant family history suggesting this syndrome, the diagnosis is usually delayed. Recently the gene for the syndrome was identified on chromosome 19. We report 3 boys and 1 girl, 11-15 years old with hemiplegic migraine.
Insights
Familial hemiplegic migraine, a rare genetic disorder, involves temporary paralysis and neurological symptoms. Recent gene identification on chromosome 19 aids in understanding this severe migraine subtype.
Area of Science:
- Neurology
- Genetics
Background:
- Familial hemiplegic migraine (FHM) is a rare autosomal dominant subtype of migraine.
- Characterized by temporary hemiplegia, hemisensory deficits, and neurological abnormalities preceding or accompanying severe headache, nausea, and vomiting.
Observation:
- Episodes are acute, lasting several hours, with spontaneous resolution.
- Long intervals between episodes and delayed diagnosis often occur without a clear family history.
- The study reports on 4 adolescents (3 boys, 1 girl) aged 11-15 experiencing hemiplegic migraine.
Findings:
- The gene responsible for FHM has recently been localized to chromosome 19.
- This genetic identification is a significant step in understanding the pathophysiology of FHM.
Implications:
- Improved diagnostic criteria and earlier recognition of FHM are anticipated.
- Genetic insights may pave the way for targeted therapies for this debilitating migraine condition.