Rft1 Cdg: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 2, 2026.
What kind of doctor treats Rft1 Cdg?
A primary care doctor, such as a pediatrician, usually coordinates care. Because RFT1-CDG is so complex, a medical geneticist, a doctor who specializes in inherited conditions, often helps confirm the diagnosis and guide treatment. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.
What it is
RFT1-CDG is a rare genetic condition that a person is born with. The name stands for a congenital disorder of glycosylation, which means the body has trouble attaching sugars to proteins. When this process does not work well, many parts of the body can be affected, including the brain, nerves, and skin. It is caused by changes in a gene called RFT1.
Symptoms
Symptoms usually appear in infancy or early childhood and can differ a lot from one child to another. Common features include developmental delay, meaning a child reaches milestones like sitting or walking later than expected. Many children have low muscle tone. Other possible signs include seizures, trouble feeding, slow growth, and skin or hair changes.
Causes and who gets it
A child must inherit two changed copies of the RFT1 gene, one from each parent. This is called autosomal recessive inheritance. Parents usually carry the changed gene without having symptoms themselves. When both parents are carriers, each pregnancy has a one in four chance of being affected.
How doctors diagnose it
Doctors often start with a blood test that looks at certain proteins. In this condition, those proteins show an unusual pattern. Genetic testing can then confirm the diagnosis by finding changes in the RFT1 gene. Because the condition is so rare, doctors often work with specialists in genetics.
Treatment
There is no cure for RFT1-CDG. Treatment focuses on managing symptoms and keeping the child as healthy as possible. This may include medicines to control seizures, feeding support, and physical therapy. Regular checkups help doctors watch for new symptoms and adjust care over time.
When to see a doctor
Talk to a doctor if a baby or child has floppy muscles, delayed milestones, seizures, or trouble feeding. Seek care right away if a seizure happens, if breathing seems difficult, or if a child stops eating or drinking.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee instead of billing insurance for visits. A concierge doctor works in a similar way but usually costs more and often works alongside insurance. These doctors can spend extra time managing routine checkups and keeping the care team communicating, referring to specialists when needed.
Common questions
Is RFT1-CDG the same as other CDG types?
No. CDG stands for congenital disorders of glycosylation, which is a group of many related conditions. Each type has a different gene change, and symptoms can differ between types.
Can RFT1-CDG be prevented?
There is no known way to prevent it. Couples with a family history can meet with a genetic counselor before or during pregnancy. This helps them learn about their chances of having an affected child.
Will my child grow out of it?
No. RFT1-CDG is a lifelong genetic condition. With good medical care, many symptoms can be managed, but the underlying gene change does not go away.
How can I find specialists who know about this condition?
Medical genetics centers at large hospitals often see patients with rare conditions. Patient groups for CDG can also help families connect with doctors who have experience with these disorders.
Sources
- NIH Genetic and Rare Diseases Information Center - RFT1-congenital disorder of glycosylation
- National Organization for Rare Disorders (NORD) - RFT1-congenital disorder of glycosylation - National Organization for Rare Disorders
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
