There is an association between intracranial AV malformations and dural AV malformations..these can be anywhere along the dura .the association is low...about .2% from what I have read, though there is not a lot of papers on this. however you don't really know unless you have an MRI. No issues regarding ICP at all, even if the AVM had not been repaired.....I did the spinal, knowing of the association, and one of my partners tried giving me a load of crap.....0.2% association, would have to be at the L4/5 space on top of that, extremely slim chances of hitting one...now an epidural I would not have done without knowing the results of an MRI. I would say though, there was really no contrindication to a general, and she would have been an easy intubation.......