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Living with Neonatal Marfan syndrome

Information, shared experiences and research connections for people living with Neonatal Marfan syndrome and those who support them.

Understanding Neonatal Marfan syndrome

Neonatal Marfan syndrome is a rare, severe and life-threatening form of Marfan syndrome that shows up in newborns and young babies, with serious heart and blood vessel problems that can get worse quickly.

Marfan syndrome is caused by changes in the FBN1 gene, which helps give strength to connective tissue; the change can be passed down from a parent or happen for the first time in the baby.

Signs & symptoms

Doctors may notice signs like these in a newborn or infant:

  • Heart valve problems and a heart murmur
  • Widening (bulging) of the main artery from the heart
  • Breathing trouble after birth
  • Feeding difficulties and low muscle tone
  • Long, thin fingers and joints that stay bent
  • Eye problems such as severe nearsightedness or a lens out of place

Tell your care team about new or changing symptoms.

Diagnosis

  1. Exam and family history

    Your baby's doctors look for signs of Marfan syndrome and ask about family health history.

  2. Heart imaging

    An echocardiogram (heart ultrasound) measures the main artery and checks how the heart valves are working.

  3. Genetic and eye tests

    A blood test can look for changes in the FBN1 gene, and an eye exam can check for a lens that is out of place.

Care & treatment

Care team
Babies are often cared for by a team that can include heart doctors, geneticists and other specialists, often at a children's hospital or academic medical center.
Treatment
There is no cure, but treatments such as blood pressure medicines and, in some cases, heart or blood vessel surgery may help delay or prevent problems.
Your plan
Your baby's care plan will focus on the heart and on symptoms like breathing and feeding, with close follow-up.

Discuss benefits, risks and follow-up with your care team.

Everyday life

Keeping things organized can help you and your baby's team:

  • Keep a notebook of your baby's feeding, breathing and any changes you notice between visits.
  • Keep copies of heart test results, genetic results and a list of medicines in one place.
  • Ask who to call after hours and which warning signs mean you should seek care right away.
Bring these questions to your next doctor visit
How is my baby's heart doing, and how often will it be checked?
What signs of breathing or feeding trouble should we watch for at home?
Should other family members have genetic testing or a heart check?
Sources: NIH GARD — Neonatal Marfan syndrome · MedlinePlus Genetics — Marfan syndrome · NHLBI — Marfan syndrome: Diagnosis · NHLBI — Marfan syndrome: TreatmentPage drafted from NIH sources · Know Rare editorial review pending. General information to support conversations with your care team.

You are more than your diagnosis

Perspectives from people navigating life with Neonatal Marfan syndrome.

Explore the Neonatal Marfan syndrome blog

Explore research for Neonatal Marfan syndrome

Explore actively recruiting Neonatal Marfan syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Neonatal Marfan syndrome with HealthSpark. Share your city to explore research near you.

  • Phase 3 studies first, with nearest research center
  • Study information from ClinicalTrials.gov
  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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