Jemisa.
This will depend upon many factors, age , other medical conditions and where the arteries are blocked.
3 considerations.
1) Medical treatment alone.
2) Insertion of stents
3) Vein byepass proceedure.
Medical treatment alone, I would have thought unlikely in this era.
Stents inserted...very popular, no invasive and quick results...overnight stay at most.
Vein graft from the leg to bypass blocked artery, very successful.
I cannot be more specific than that with the information given.