@gloaming I have had the opportunity to see a consultant surgeon this morning He is in full agreement with your valued analysis. The way forward he has taken is to order a new Angiogram from his recommended cardiologist, as there may be further deterioration in the last year to the right side as well. Then to proceed with surgery to correct any and all problems. (Without insurance they will not do robotic surgery any more and the fee is beyond my means) He did say I am fit enough overall and he anticipates no problems. I am on the list for bye pass surgery, Many Thanks for your input which the surgeon was eager to read