Weiss-Kruszka Syndrome

Last reviewed

🖨 Print for my doctorAdvocacy Hub →
ORPHA:502430OMIM:618619Q87.8
Who is this for?
Show terms as
8Treatment centers

Where are you in your journey?

UniteRare data is sourced from FDA.gov, ClinicalTrials.gov, Orphanet, OMIM, and NORD.
Report missing data

Overview

Weiss-Kruszka Syndrome is a rare genetic condition caused by changes (variants) in the KAT6A gene. It is also sometimes called KAT6A Syndrome. This condition affects many parts of the body and development, and it is present from birth. The brain and nervous system are most commonly affected, leading to intellectual disability that can range from mild to severe, as well as delays in reaching developmental milestones like sitting, walking, and talking. Many children with this syndrome have little or no speech, which can be one of the most challenging aspects of the condition for families. Beyond brain development, Weiss-Kruszka Syndrome can also affect the heart, eyes, and facial features. Some children are born with heart defects that may need surgery. Feeding difficulties are very common in infancy, and many babies need special feeding support. Distinctive facial features, such as a small head size, widely spaced eyes, and a small mouth, are often noticed by doctors. There is currently no cure for Weiss-Kruszka Syndrome. Treatment focuses on managing symptoms and supporting development. This includes speech therapy, occupational therapy, physical therapy, and special education programs. Heart defects are treated as needed, sometimes with surgery. With the right support, many individuals with this syndrome can make meaningful developmental progress over time.

Also known as:

Key symptoms:

Intellectual disability ranging from mild to severeLittle or no speech (expressive language delay)Delayed developmental milestones such as sitting and walkingFeeding difficulties in infancyCongenital heart defectsSmall head size (microcephaly)Widely spaced eyesSmall or narrow mouthHearing lossVision problemsBehavioral challenges such as anxiety or repetitive behaviorsSeizures in some individualsGastroesophageal reflux (stomach acid coming back up)Low muscle tone (hypotonia)Short stature

Clinical phenotype terms (29)— hover any for plain English
Broad philtrumHP:0000289Exaggerated cupid's bowHP:0002263Prominent nasal tipHP:0005274Prominent metopic ridgeHP:0005487
Inheritance

Autosomal dominant

Passed on from just one parent; each child has about a 50% chance of inheriting it

Age of Onset

Neonatal

Begins at or shortly after birth (first 4 weeks)

Orphanet ↗OMIM ↗NORD ↗

Treatments

No FDA-approved treatments are currently listed for Weiss-Kruszka Syndrome.

View clinical trials →

No actively recruiting trials found for Weiss-Kruszka Syndrome at this time.

New trials open frequently. Follow this disease to get notified.

Search ClinicalTrials.gov ↗Join the Weiss-Kruszka Syndrome community →

No specialists are currently listed for Weiss-Kruszka Syndrome.

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 Weiss-Kruszka Syndrome.

Search all travel grants →NORD Financial Assistance ↗

Community

Open Weiss-Kruszka SyndromeForum →

No community posts yet. Be the first to share your experience with Weiss-Kruszka Syndrome.

Start the conversation →

Latest news about Weiss-Kruszka Syndrome

No recent news articles for Weiss-Kruszka Syndrome.

Follow this condition to be notified when news becomes available.

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.What specific change was found in my child's KAT6A gene, and what does that mean for their prognosis?,Should other family members be tested for this gene change?,What therapies should we start right away, and how often should they happen?,Does my child need a heart evaluation, and how often should it be repeated?,What communication tools or AAC devices would you recommend for my child?,Are there any clinical trials or research studies we could participate in?,What signs or symptoms should prompt me to seek emergency care?

Common questions about Weiss-Kruszka Syndrome

What is Weiss-Kruszka Syndrome?

Weiss-Kruszka Syndrome is a rare genetic condition caused by changes (variants) in the KAT6A gene. It is also sometimes called KAT6A Syndrome. This condition affects many parts of the body and development, and it is present from birth. The brain and nervous system are most commonly affected, leading to intellectual disability that can range from mild to severe, as well as delays in reaching developmental milestones like sitting, walking, and talking. Many children with this syndrome have little or no speech, which can be one of the most challenging aspects of the condition for families. Beyon

How is Weiss-Kruszka Syndrome inherited?

Weiss-Kruszka Syndrome follows a autosomal dominant inheritance pattern. Genetic counseling can help families understand recurrence risk and testing options.

At what age does Weiss-Kruszka Syndrome typically begin?

Typical onset of Weiss-Kruszka Syndrome is neonatal. Age of onset can vary across affected individuals.