A member asked:

Avm inside spine. c4-c5. it has been bleeding. go in a month to see if stable. how serious is surgery? what's the outcome if left alone?

3 doctors weighed in across 2 answers

Problem with AVMs: Sometimes an AVM can be serious, especially in this location. Can you say if the AVM is in the spinal cord, or the spine? It may be important. An AVM could be clinically quiet and cause no problems. Larger AVMs (more than 4 cm, about 1.7 inches) tend to be a problem. So size is a factor. An AVM that has bled is at risk for bleeding again. It is the bleeding that often causes a problem.

Answered 5/21/2016

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Dr. Philippe Gailloud answered

Specializes in Interventional Radiology

No short answer: There are different types of "spinal AVMs" with different natural histories and treatment options. Treatment may involve surgery or embolization, or a combination of both. Some lesions are better left alone (conservative management). A lesion that has bled needs to be followed closely. Consult a physician with experience in the diagnosis and management of spinal vascular malformations

Answered 2/22/2017

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