Mine was not coil but stent, similar procedure through embolization. My first follow up was an angiogram, and I believe I had another one about a year later, MRAs after that until about 3 years later when the surgeon told me that the stent was not working fully as expected and he recommended a second embolization to place a second stent inside the first one, He did another angiogram prior to the surgery and again I believe one about 6 months after. After that again MRAs.

My brother had a ruptured brain aneurysm that was emergency repaired with a coil. His was in Canada and all his follow ups were MRAs or MRIs . Two years after his first rupture and about 5 months after his MRA/I check up, his aneurysm ruptured again, this time he was lucky to survive (I understand mortality after second rupture is high) but was left with some disability.

When I compare my follow up protocol with his, I can’t stop thinking that if he had been followed up with at least one angiogram this probably would not have happened