Angina and angioplasty

I am a 66 yr old male with dilated cardiomyopathy and had bypass surgury 7 years ago.  The diagnosis was made with the aid of xray and echo.  I feel good, play tennis a couple of days a week and golf a couple of days as well.  I suffer from shortness of breath now and then after some exertion but not during the nightime.  There is no swelling of the feet or other symtoms (symptoms).
I recently had a pacemaker installed due to passing out as I settled into bed at night.  I suffer from angina at the onset of exercise and sometimes for no apparent reason after awakening during the night. I am presently on coumidin and accupril.
Can angioplasty be performed on a patient that has had a bypass?
Is coreg appropriate at this time in my treatment?

[CCF CARDIO MD - DLB]

Dear Donald

Patients with prior bypass surgery can still have angioplasty, either on their native coronary arteries or on the bypass grafts. Coreg is a useful medication for patients with heart failure, but it can be tricky to dose it safely.

I hope this has been useful. I wish you the best of luck.