What Is Moyamoya Disease?

Moyamoya disease is a rare condition in which the arteries in the brain become narrow or blocked, causing a reduction of blood flow to the brain. This can lead to a variety of symptoms, including headaches, seizures, strokes, and developmental delays in children.

Moyamoya disease is most common in East Asia, but it can occur anywhere in the world. It is more likely to affect women than men, and it usually strikes children between the ages of 5 and 9 years old.

The cause of moyamoya disease is unknown, but it is thought to be related to a combination of genetic and environmental factors. Some people with moyamoya disease have a family history of the condition, while others develop it after certain infections or injuries.

Moyamoya disease is diagnosed with a variety of tests, including magnetic resonance angiography (MRA), computed tomography angiography (CTA), and digital subtraction angiography (DSA). These tests can show the narrow or blocked arteries in the brain.

Treatment for moyamoya disease usually involves surgery to bypass the blocked arteries and restore blood flow to the brain. There are a variety of surgical techniques that can be used, and the best approach will depend on the individual patient's condition.

After surgery, patients with moyamoya disease will need to follow up with their doctor regularly to monitor their condition. They may also need to take medication to prevent strokes and other complications.

The prognosis for people with moyamoya disease is generally good, but it can vary depending on the severity of the condition and the individual's response to treatment. With proper treatment, most people with moyamoya disease can live a full and active life.