The tricky thing with angina
is if it has remained stable over a period of time, or if it has worsened. In the first scenario, the common approach is to try to maximize all anti-anginal medications as tolerated by your heart rate
, blood pressure and symptoms. If on the other hand, things feel worse, then more invasive investigations, include an angiogram, might be warranted since you are considered a high risk patient.
Hope that helps
Mayo Clinic Rochester