Overview
Pachygyria-intellectual disability-epilepsy syndrome is a rare brain development disorder present from birth. The name 'pachygyria' comes from Greek words meaning 'thick' and 'gyrus' (the folds of the brain). In this condition, the brain does not form its normal folds and grooves during pregnancy. Instead, the brain surface appears smoother and thicker than usual. This abnormal brain structure leads to the three main features of the syndrome: intellectual disability (difficulty with learning and thinking), epilepsy (recurring seizures), and other neurological problems. The brain's unusual shape affects how nerve cells communicate with each other, which is why seizures and learning difficulties are so common. Seizures can range from mild to very severe and may be hard to control with medication. Children with this condition often have delayed development, meaning they may be slower to reach milestones like sitting, walking, and talking. Some children may never walk independently or develop spoken language. There is currently no cure for pachygyria-intellectual disability-epilepsy syndrome. Treatment focuses on managing symptoms, especially seizures, using anti-seizure medications. Supportive therapies such as physical therapy, speech therapy, and occupational therapy can help improve quality of life. Early intervention and a strong support team are very important for children and families living with this condition.
Also known as:
Key symptoms:
Recurring seizures (epilepsy)Intellectual disability (difficulty learning and thinking)Delayed development of motor skills like sitting and walkingDelayed or absent speech and language developmentMuscle tone problems (either too stiff or too floppy)Difficulty swallowing or feedingSmall head size (microcephaly) in some casesPoor coordination and balanceBehavioral challengesVision problems in some cases
Clinical phenotype terms (4)— hover any for plain English
Variable
Can be inherited in different ways depending on the underlying gene
Infantile
Begins in infancy, roughly 1 month to 2 years old
Treatments
No FDA-approved treatments are currently listed for Pachygyria-intellectual disability-epilepsy syndrome.
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Specialists
View all specialists →No specialists are currently listed for Pachygyria-intellectual disability-epilepsy syndrome.
Treatment Centers
8 centersBaylor College of Medicine Rare Disease Center ↗
Baylor College of Medicine
📍 Houston, TX
🏥 NORDStanford Medicine Rare Disease Center ↗
Stanford Medicine
📍 Stanford, CA
🔬 UDNNIH Clinical Center Undiagnosed Diseases Program ↗
National Institutes of Health
📍 Bethesda, MD
🔬 UDNUCLA UDN Clinical Site ↗
UCLA Health
📍 Los Angeles, CA
🔬 UDNBaylor College of Medicine UDN Clinical Site ↗
Baylor College of Medicine
📍 Houston, TX
🔬 UDNHarvard/MGH UDN Clinical Site ↗
Massachusetts General Hospital
📍 Boston, MA
🏥 NORDMayo Clinic Center for Individualized Medicine ↗
Mayo Clinic
📍 Rochester, MN
👤 Mayo Clinic Center for Individualized Medicine
🏥 NORDUCLA Rare Disease Day Program ↗
UCLA Health
📍 Los Angeles, CA
Travel Grants
No travel grants are currently matched to Pachygyria-intellectual disability-epilepsy syndrome.
Community
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Caregiver Resources
NORD Caregiver Resources
Support, advocacy, and financial assistance for caregivers of rare disease patients.
Mental Health Support
Rare disease caregiving can be isolating. Connect with counseling and peer support.
Family & Caregiver Grants
Financial assistance programs specifically for caregivers of rare disease patients.
Social Security Disability
Learn how rare disease patients may qualify for SSDI/SSI benefits.
Questions for your doctor
Bring these to your next appointment
- Q1.Which gene is causing my child's condition, and what does that mean for their future?,What is the best anti-seizure medication for my child's type of epilepsy, and what are the side effects?,Should we consider the ketogenic diet for seizure control?,What therapies (physical, speech, occupational) should my child start, and how often?,What developmental milestones can we realistically hope for, and how can we support my child's progress?,Are there any clinical trials or research studies we should know about?,What should I do if my child has a prolonged seizure at home?
Common questions about Pachygyria-intellectual disability-epilepsy syndrome
What is Pachygyria-intellectual disability-epilepsy syndrome?
Pachygyria-intellectual disability-epilepsy syndrome is a rare brain development disorder present from birth. The name 'pachygyria' comes from Greek words meaning 'thick' and 'gyrus' (the folds of the brain). In this condition, the brain does not form its normal folds and grooves during pregnancy. Instead, the brain surface appears smoother and thicker than usual. This abnormal brain structure leads to the three main features of the syndrome: intellectual disability (difficulty with learning and thinking), epilepsy (recurring seizures), and other neurological problems. The brain's unusual sha
At what age does Pachygyria-intellectual disability-epilepsy syndrome typically begin?
Typical onset of Pachygyria-intellectual disability-epilepsy syndrome is infantile. Age of onset can vary across affected individuals.