Hi
I am afraid you are not going to get a simple yes or no from this site or anywhere else. The FAA will want to see your medical records in some detail - where was the AVM, what actual surgery was involved and what was the outcome on x rays. Then they will want more detail about the affect this had on you postoperatively. Thirdly they will want to examine you very carefully and most likely ask for more tests.
The best advice we can give you is to obtain as many of your medical records as you can and take them to an AME who most likely will refer upwards for advice. This will take some time. I do have some doubt about the outcome simply due to the complexity of an AVM, but I am sure everyone will do their best to help you. All the very best and do post again and let us know how you get on.