Progressive myoclonic epilepsy with dystonia

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ORPHA:352596OMIM:615338G40.3
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8Treatment centers

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Overview

Progressive myoclonic epilepsy with dystonia (also sometimes called PME with dystonia) is a very rare genetic neurological condition that affects the brain's ability to control movement and electrical activity. People with this condition experience myoclonic seizures, which are sudden, brief, involuntary muscle jerks, along with other types of epileptic seizures that tend to worsen over time. In addition to seizures, affected individuals develop dystonia, which causes muscles to contract involuntarily, leading to abnormal postures and twisting movements. These movement problems can affect the limbs, trunk, or face. The disease typically begins in childhood or adolescence and tends to get progressively worse over time. Cognitive abilities may also decline as the disease advances, and individuals may experience difficulties with coordination, balance, and daily activities. The combination of worsening seizures and movement problems can significantly impact quality of life. Treatment is mainly focused on managing symptoms. Anti-seizure medications are used to reduce the frequency and severity of seizures, though they may become less effective over time. Medications and therapies for dystonia can help with abnormal movements. There is currently no cure for this condition, and management requires a team of specialists working together to address the various symptoms and support the patient and family.

Also known as:

Key symptoms:

Sudden involuntary muscle jerks (myoclonus)Seizures that worsen over timeInvoluntary muscle contractions causing abnormal postures (dystonia)Difficulty with coordination and balanceUnsteady walkingCognitive decline or learning difficultiesSpeech difficultiesDifficulty with fine motor tasks like writingTremorStiffness in musclesProgressive loss of motor skillsDifficulty swallowing in advanced stages

Clinical phenotype terms (22)— hover any for plain English
EEG with irregular generalized spike and wave complexesHP:0001326Delayed CNS myelinationHP:0002188Generalized neonatal hypotoniaHP:0008935Epileptic encephalopathyHP:0200134HemiplegiaHP:0002301Diffuse cerebral atrophyHP:0002506Poor visual behavior for ageHP:0025152
Inheritance

Autosomal recessive

Passed on when both parents carry the same gene change; often skips generations

Age of Onset

Childhood

Begins in childhood, roughly ages 1 to 12

Orphanet ↗OMIM ↗NORD ↗

Treatments

No FDA-approved treatments are currently listed for Progressive myoclonic epilepsy with dystonia.

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No actively recruiting trials found for Progressive myoclonic epilepsy with dystonia at this time.

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No specialists are currently listed for Progressive myoclonic epilepsy with dystonia.

View NORD Rare Disease Centers ↗Undiagnosed Disease Network ↗

Treatment Centers

8 centers
🏥 NORD

Baylor College of Medicine Rare Disease Center

Baylor College of Medicine

📍 Houston, TX

🏥 NORD

Stanford Medicine Rare Disease Center

Stanford Medicine

📍 Stanford, CA

🔬 UDN

NIH Clinical Center Undiagnosed Diseases Program

National Institutes of Health

📍 Bethesda, MD

🔬 UDN

UCLA UDN Clinical Site

UCLA Health

📍 Los Angeles, CA

🔬 UDN

Baylor College of Medicine UDN Clinical Site

Baylor College of Medicine

📍 Houston, TX

🔬 UDN

Harvard/MGH UDN Clinical Site

Massachusetts General Hospital

📍 Boston, MA

🏥 NORD

Mayo Clinic Center for Individualized Medicine

Mayo Clinic

📍 Rochester, MN

👤 Mayo Clinic Center for Individualized Medicine

🏥 NORD

UCLA Rare Disease Day Program

UCLA Health

📍 Los Angeles, CA

Travel Grants

No travel grants are currently matched to Progressive myoclonic epilepsy with dystonia.

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Community

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Caregiver Resources

NORD Caregiver Resources

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Social Security Disability

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Questions for your doctor

Bring these to your next appointment

  • Q1.What specific genetic mutation is causing this condition in my child or family member?,What medications are best for controlling both the seizures and the dystonia?,Are there any medications we should avoid because they could make symptoms worse?,How quickly might this condition progress, and what should we watch for?,Are there any clinical trials or experimental treatments available?,What therapies (physical, occupational, speech) would be most helpful right now?,Should other family members be tested for this genetic condition?

Common questions about Progressive myoclonic epilepsy with dystonia

What is Progressive myoclonic epilepsy with dystonia?

Progressive myoclonic epilepsy with dystonia (also sometimes called PME with dystonia) is a very rare genetic neurological condition that affects the brain's ability to control movement and electrical activity. People with this condition experience myoclonic seizures, which are sudden, brief, involuntary muscle jerks, along with other types of epileptic seizures that tend to worsen over time. In addition to seizures, affected individuals develop dystonia, which causes muscles to contract involuntarily, leading to abnormal postures and twisting movements. These movement problems can affect the

How is Progressive myoclonic epilepsy with dystonia inherited?

Progressive myoclonic epilepsy with dystonia follows a autosomal recessive inheritance pattern. Genetic counseling can help families understand recurrence risk and testing options.

At what age does Progressive myoclonic epilepsy with dystonia typically begin?

Typical onset of Progressive myoclonic epilepsy with dystonia is childhood. Age of onset can vary across affected individuals.