So disappointing for you, but going for the styloidectomy sounds like it was needed, & like you say scar tissue was removed so the op wasn’t a waste of time.
I was warned of possible effects from stenting, but luckily didn’t need it…however several members have posted research articles which mention successful styloidectomy & venoplasty/ stenting at the same time giving very good results. Here’s a link to one @TheDude posted:
DA ZHOU et al. (2018) - Understanding jugular venous outflow disturbance - General / Research Papers - Living with Eagle
There are other papers I think too which you could look at. Not sure about others having stenting done- @Chromechaser66 had stents without styloidectomy & that didn’t work, another member had stents but regrowth mangled them…
It’s something which does need careful thought as they can’t be removed, but equally staying on blood thinners isn’t great either. Sending you a hug 
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