My husband is a 50 year old, very fit (mountain bikes 4 * 1.5 hours per week, 1* 3 hours and plays squash 2 times) - he is a pilot so regulary does stress ecg's which all showed no problems and superfit. His family has CAD history so he took a preventative CT scan which showed calcium score of 144 and possible 60% blockage. He then went to cardiologist who did ecg with him and said he had no problems and expected everything to be ok - but then when they did angiogram it showed a 80% blockage of LAD as well as 2 other small blockages. The blockage was 33mm which was too long to stent so he said it would be CABG however as he has no symptoms whatsoever - no angina even with heavy excercise he did not do surgery but prescribed aspirin, crestor (he has been on for 10 years) and pritor. I have seen all the studies that indicate no medical reason to do surgery when there are no symptoms - but I am petrified of him having a sudden heart attack - so am wondering if there is a medical reason NOT to do the surgery. He is now taking the medicine, on a low fat diet and has reduced his exercise intensity (was previous going up to 189 on a tough ride although his resting heart rate is low - all with no angina)..... any thoughts? We have got two other opinions one from a CT surgeon who said no operation and one from a physician (plumber type) who basically told us my husband is a timebomb waiting to drop dead unless we do CABG!?!?