You must remember that most people with hepatitis C
live long lives and many dont get any symptoms for decades.Being diagnosed with this problem may even be good for the patient as it may inspire him to change his life style and live a more meaningful and healthier life,both physically and emotionally.
There is no problem in giving the treatment to person who has undergone a bypass surgery
The most important thing is that his cardiac and lung functions are not compromised.
Talk to your doctor regarding the treatment and you can go for it.