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Living with Generalized epilepsy-paroxysmal dyskinesia syndrome

A rare genetic condition that combines seizures with sudden, brief episodes of abnormal movements.

Understanding Generalized epilepsy-paroxysmal dyskinesia syndrome

Generalized epilepsy-paroxysmal dyskinesia syndrome combines generalized epilepsy with episodes of abnormal movements.

People or families have both generalized epilepsy (usually absence or generalized tonic-clonic seizures) and paroxysmal dyskinesia, which are sudden episodes of unwanted movement. GARD says how common it is remains unknown. It is usually noticed in childhood.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Seizures that affect the whole brain (generalized seizures)
  • Sudden episodes of abnormal movement (paroxysmal dyskinesia)

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include brain and nervous system specialists, genetic specialists and seizure and epilepsy specialists.

  3. Consider genetic testing

    Changes in KCNMA1 are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

  4. Connect with expert centers

    Epilepsy Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Genetic specialists (geneticists); Seizure and epilepsy specialists (epileptologist)
Expert care
Expert lists: Epilepsy Foundation
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with Epilepsy Foundation
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Can genetic testing look for a change in the KCNMA1 gene?
What can help control seizures and movement episodes?
Should other family members be checked?

Quick facts

Symptoms usually startChild
InheritanceAutosomal Dominant
GenesKCNMA1

Changes in the KCNMA1 gene cause this condition. It is inherited in an autosomal dominant way, which means one changed copy of the gene is enough.

GeneticNeurological

Also known as: generalized epilepsy and paroxysmal dyskinesia; gepd; paroxysmal nonkinesigenic dyskinesia, 3, with or without generalized epilepsy; pnkd3

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Generalized epilepsy-paroxysmal dyskinesia syndromeGARD ID 16704 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Generalized epilepsy-paroxysmal dyskinesia syndrome.

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