Marfan Syndrome

Marfan syndrome is a genetic disorder that affects the body’s connective tissue, which provides strength and support to organs, blood vessels, bones and other structures. Because connective tissue is found throughout the body, Marfan syndrome can affect multiple systems, including the heart, blood vessels, eyes, bones and joints. The condition is present from birth, though symptoms may not become noticeable until later in childhood or adulthood.

Marfan syndrome varies widely in severity. Some people have mild features, while others develop serious or life-threatening complications, particularly involving the heart and aorta. Early diagnosis and regular medical monitoring play a key role in managing the condition and improving life expectancy.

Symptoms

Symptoms of Marfan syndrome differ from person to person and may range from mild to severe.

Common symptoms include:

• Tall and slender body build

• Long arms, legs, fingers and toes

• Flexible joints

• Chest that sinks inward or sticks outward

• Curvature of the spine

• Flat feet

• Crowded teeth

• Stretch marks not related to weight changes or pregnancy

Heart- and eye-related symptoms may include:

• Heart murmurs

• Shortness of breath

• Fatigue

• Nearsightedness

• Dislocated lens of the eye

• Blurred or reduced vision

Symptoms often become more noticeable as a person grows.

Causes

Marfan syndrome is caused by a mutation in a gene that helps form connective tissue. This gene normally produces a protein that gives tissues strength and elasticity. When the gene is altered, connective tissue becomes weak and stretchy.

The condition is usually inherited from a parent, but in some cases it occurs due to a new genetic mutation with no family history. Because the genetic change affects connective tissue throughout the body, multiple organs and systems may be involved.

Risk factors

The primary risk factor for Marfan syndrome is having a parent with the condition. A child of an affected parent has a significant chance of inheriting the disorder.

Other risk considerations include:

• Family history of Marfan syndrome

• Known genetic mutation affecting connective tissue

The condition affects males and females equally and occurs in all ethnic groups.

Complications

Complications of Marfan syndrome can be serious, especially if not monitored and treated.

Possible complications include:

• Enlargement or tearing of the aorta

• Heart valve problems

• Heart failure

• Vision loss due to eye complications

• Early-onset arthritis

• Lung problems, such as collapsed lung

• Chronic pain due to skeletal abnormalities

Heart-related complications are the most serious and require lifelong monitoring.

Prevention

Marfan syndrome cannot be prevented because it is a genetic condition. However, serious complications can often be prevented or reduced with proper care.

Preventive strategies include:

• Regular heart imaging to monitor the aorta

• Routine eye examinations

• Avoiding high-intensity or contact sports that strain the heart

• Taking prescribed medications to reduce stress on the heart and blood vessels

• Genetic counseling for individuals planning a family

Early diagnosis, regular follow-up and appropriate lifestyle adjustments are essential for managing Marfan syndrome and maintaining long-term health.