Arteriovenous Malformation (AVM)
An arteriovenous malformation (AVM) is an abnormal connection between arteries and veins, bypassing normal capillaries. Brain AVMs can cause bleeding (hemorrhagic stroke), seizures, or headaches.
Table of Contents
Quick Facts
- ICD-10: Q27.30 (brain Q28.2)
- Most concerning location: Brain
- Risk: Hemorrhage, seizures
Symptoms (Brain AVM)
- Often no symptoms until rupture
- Severe headache
- Seizures
- Weakness, numbness, or vision changes
- Trouble speaking
- Sudden severe headache may signal rupture (emergency)
Diagnosis
- CT or MRI imaging
- Cerebral angiography (gold standard for brain AVMs)
Treatment
- Observation for small or low-risk AVMs
- Surgical removal
- Endovascular embolization
- Stereotactic radiosurgery
- Often combined approaches
Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about a medical condition. If you are experiencing a medical emergency, call your local emergency number immediately.
References
- American Stroke Association. AVM Patient Information.