Angioplasty is a regularly performed VALID treatment for valid medical issues.
There is no BUSTING except perhaps by the uninformed neurologist on your butt for getting the treatment.
As far as I am aware, medical emergencies are medical emergencies and are treated accordingly. Hospitals that refuse to treat a medical emergency get shut down. If your insurance does not cover a medical emergency, you best get new insurance.
Just my 2cents.

Best,
Rosie
My blog:
http://gothicrosie.wordpress.com/
transverse myelitis May '07 & optic neuritis Oct '07
DXd RRMS Dec. ‘07: No lesions & 3 OG bands
Hubbard MRV scan Jun. ‘10/CCSVI Jul. '10