Generalized myoclonic seizure
A generalized myoclonic seizure is a type of generalized motor seizure characterized by bilateral, sudden, brief (<100 ms) involuntary single or multiple contraction of muscles or muscle groups of variable topography (axial, proximal limb, distal). Myoclonus is less regularly repetitive and less sustained than is clonus.
What is Generalized myoclonic seizure?
Generalized myoclonic seizure is a symptom that people may experience for many reasons. It can be related to infections, chronic conditions, injuries, medication effects, or other health changes. The presence of this symptom alone does not diagnose any condition.
If you have Generalized myoclonic seizure that is severe, persistent, or accompanied by other warning signs, contact a qualified healthcare provider.
Possible conditions associated with Generalized myoclonic seizure
The following conditions have been associated with Generalized myoclonic seizure. Only a health professional can determine the underlying cause.
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Alacrimia-choreoathetosis-liver dysfunction syndrome
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Angelman syndrome
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Bilateral generalized polymicrogyria
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Bilateral polymicrogyria
Bilateral polymicrogyria is a medical condition that may be associated with various symptoms and signs.
Biotinidase deficiency
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Combined oxidative phosphorylation defect type 27
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DNM1L-related encephalopathy due to mitochondrial and peroxisomal fission defect
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DPAGT1-CDG
DPAGT1-CDG is a medical condition that may be associated with various symptoms and signs.
DPM1-CDG
DPM1-CDG is a medical condition that may be associated with various symptoms and signs.
DYRK1A-related intellectual disability syndrome due to 21q22.13q22.2 microdeletion
DYRK1A-related intellectual disability syndrome due to 21q22.13q22.2 microdeletion is a medical condition that may be as...
Dravet syndrome
Dravet syndrome is a medical condition that may be associated with various symptoms and signs.
Related symptoms
When to seek medical care
Seek urgent care if Generalized myoclonic seizure is severe, sudden, or occurs with chest pain, difficulty breathing, confusion, severe weakness, or other serious symptoms.