CABG with Diffuse Viens

[thetechman]

Hi

My mother is 58. She is diabetic. We had her Angiography done last month. The cardiologist said she has Double Vessel Coronary Artery Diseases (DVCAD). Her Angiography report is as follows.
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LMS: Normal
LAD: Diffuse critical disease throughout the vessel
LCx Totaly occluded from origin, cross filled from right
RCA: Dominant and Normal
LV Angio: Good LV function
Diagnosis: DVCAD with good LV function
Advice: Cardiac Surgeon opinion for Bypass surgery
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I also met with a cardiac surgeon. He said that veins are diffused and he estimated the risk to 6% in bypass (for normal he says the risk is 3%).  My mother does not have any symptoms of chest pain except she might get high breathing after lunch for a short time once in a month or couple of month.

Now I don't know, What should I do? Should I go for bypass or not? Please help