Hi, @davfr - welcome to Mayo Clinic Connect. I started a brand new discussion and moved your post here, as I thought this topic merited it and others might be interested in discussing dural arteriovenous fistulas (dAVFs) and the treatment suggested by your husband's doctor.

I imagine that experiencing tingling and numbness in the limbs, inability to walk without support, and an affected bladder and bowel are are challenging for your husband and for you.

Here is some Mayo Clinic information on this type of AVF that you may find useful:

- Dural arteriovenous fistulas https://www.mayoclinic.org/diseases-conditions/dural-arteriovenous-fistulas/symptoms-causes/syc-20364280

Are you his caregiver at home, or is he living in a facility outside your home or having skilled nursing come help care for him with his symptoms?