Angioplasty on old occluded right coronary artery

I am 72 yr. old male with occluded right coronary artery and occluded vein graft on RCA from 19 years ago. Two lead Pacemaker 18 months ago due bradycardia. Meds: Lipitor 20mg, aspirin 81mg. Began Coreg 3.125mg and Enalapril 5mg 2 months ago after poor treadmill test. Follow-on Adenosine Nuclear Stress test results: Baseline EKG normal sinus rhythm with RBB block present. Resting BP 110/70 pulse 64bpm. Stress images showed decreased activity in inferior wall extending into the apical as well as septal wall with partial reversibility noted on rest images.  This consistent with inferior apical ischemicdefect encompassing 17% of myocardial mass. No additional ischemia noted. No evidence of transient ischemic dilation present. Gated SPECT images reveal normal left ventricular systolic function and no wall motion abnormalities on rest/stress. Calculated ejection fraction at rest 52%; with stress 56%.
My cardiologist would like to try angioplasty on the old occluded (occluded when 1991 angioplasty went badly and resulted in emergency bypass).  His reasoning is that my heart function has degraded in the last two years and will continue to degrade despite medication, wires and balloons have improved in the last couple of years, the odds on it working may be 50/50 but if it does work I will have better life quality and if it doesn't then nothing is lost.
Do you agree with his ideas? Alternatives? My main concern is of course what can go wrong and what are the odds?
Thank You, Sam"

[Cleveland Clinic]

I agree that you have significant symptoms and significant ischemia which requires either redo CABG or more likely percutaneous coronary intervention to the occluded vein graft tot he Right coronary artery. But you will likely only have one shot at opening this vessel, so my advise would be that you find the best person in the country at opening these chronically occluded vessels. We have someone on faculty who is well known worldwide for his ability to perform these, and if you are at all mobile for the procedure, you should have him, or someone of his caliber try the intervention. His name is Patrick Whitlow,and you can get an appointment with him by calling the main Cleveland Clinic number.