Brain arteriovenous malformations (BAVM) are a type of abnormal tangle of blood vessels in the brain that can cause brain hemorrhage and epilepsy. They are a rare condition that affects about 0.1-0.2% of the population.
The symptoms of BAVM depend on the size and location of the malformation, but can include headaches, seizures, weakness or numbness in the arms or legs, and problems with vision or speech.
Diagnosis of BAVM is done by CT scan or MRI. Then, for planning treatment Digital Subtraction Angiography is done. Treatment of BAVM depends on the size and location of the malformation, as well as the patient’s symptoms. BAVMs are treated either by surgery, embolization, or radiation therapy. Embolization is treatment option in which this abnormal tangle of blood vessels is blocked, while preserving normal blood vessels.
The prognosis for BAVM depends on many factors such as the size and location of the malformation, the age of the patient, and the presence of other medical conditions. With proper diagnosis and treatment, these patients with BAVM can have good outcomes and lead normal lives.