I’m very sorry that your decompression surgery didn’t do what you/we hoped for you & you’re looking at potentially needing another major surgery.
I did a search for posts re: venous sinus stenting on our forum & only found one discussion from 2021 started by another patient of Dr. Hepworth’s. I don’t think it will be super helpful, but you can read it to see if there’s any new information to glean.
I recall that @Eagle1 ended up being diagnosed w/ SCDS (Semicircular Canal Dehiscence Syndrome) from the high IH she had & was referred to a doctor at UCLA Med Ctr, but I don’t remember if she ever posted after that.