Subtitle Forum: What Percentage of AVMs Rupture?
Arteriovenous malformations (AVMs) are abnormal connections between the arteries and veins that can cause serious health complications. AVMs can rupture, leading to life-threatening bleeding and other serious complications. It’s important to know the risk of rupture when considering treatment options.
What percentage of AVMs rupture?
The exact percentage of AVMs that rupture is unclear, as there are many factors that can affect the likelihood of rupture. However, it is estimated that up to 10% of AVMs will rupture within 10 years of diagnosis. The risk of rupture is higher in larger AVMs, those located in critical areas of the brain, and those that have been present for a longer period of time.
What factors increase the risk of AVM rupture?
The size of the AVM, as well as its location, are the main factors that can increase the risk of rupture. Larger AVMs are more likely to rupture, as are those located in critical areas of the brain, such as the brain stem, cerebellum, and basal ganglia. The longer an AVM has been present, the higher the risk of a rupture.
In addition, high blood pressure can also increase the risk of AVM rupture. This is because high blood pressure can cause the walls of the vessels to become weakened and more prone to rupture.
What are the symptoms of an AVM rupture?
The most common symptom of an AVM rupture is a sudden, severe headache. Other common symptoms can include nausea, vomiting, confusion, loss of consciousness, seizures, and vision changes. Depending on the location of the AVM, other symptoms may be present as well.
How is an AVM rupture treated?
AVM rupture is a medical emergency and requires immediate medical attention. Treatment typically involves surgery to repair the damaged vessels and stop the bleeding. In some cases, radiation therapy or embolization may be used to reduce the risk of future ruptures.