How long after cardiac bypass surgery should a patient expect to feel as well as prior to the surgery?

Bypass recovery: This is not an easy answer. In large part, it depends on your overall health and associated diseases (co-morbid conditions) as well as your partcipation and response to rehabilitation and exercise. Generally speaking don't expect too much for a minimum of 6 months but work hard to achieve the best possible lifestyle to accomplish a rapid recovery.

It varies : If the bypass was done after a heart attack it may take a lot longer to recover, whereas if it was an elective procedure then recovery may be possible in 4-6 weeks, especially if followed by good cardiac rehab program.