Jim:
Since the citations for other bypasses are relatively recent, take my wife (Please! Bada-bump!).
In late 1996 Shirleen had shoulder/arm pain, jaw pain and a variety of other ailments that in a man would have sent her straight to the OR for a bypass. Since this was a long time ago (medicine-wise), they told her it was work-related stress or some other BS.
Anyway, finally persuaded a heart doc to look around and he booked her into the OR with only three days warning. She had a quintuple in February 1997 and five weeks later we flew to NYC for a long-planned vacation, no problem.
Her current cardiologist thinks she's doing great, 17 years later. This week she's on a business trip to Switzerland and Germany, walking all over the place.
Her only complaint: the scar on her leg still itches.
HTH.
\dmc