Thebobo
Lifer
Putting in a pacemaker, which I've assisted in several times, is much less invasive a surgery vs. a CABG in which your chest is literally split wide open, you're essentially killed (heart completely stopped while you're kept alive on a heart bypass machine, which itself can cause serious complications, not to mention post-pump psychosis) then revived, your leg is split open from groin to ankle to harvest the saphenous vein deep inside for the CABG graft(s).
Very, very different surgeries and lengths of recovery. Vastly different.
Sounds like more the a pacemaker
During surgery, one or more flexible, insulated wires (leads or electrodes) are inserted into a major vein under or near your collarbone and guided to your heart with the help of X-ray images. One end of each wire is secured to the appropriate position in your heart, while the other end is attached to the pulse generator, which is usually implanted under the skin beneath your collarbone
nothing about ripping you leg apart.