@imali Welcome to connect . We aren't Dr.s but try to help with what we can. In 1996 I had a triple by pass due to cholesterol it was necessary to have this done to all 3 arteries but have not had your dilemma Ask yourselve if I only have the one done then later on will I have to have this procedure done all over again ? Do I want to put my body through this again. Or just have them all done at once? But Im sure you have . Good luck with your decision . You and the Dr are the only one who can decide .