What are the effects of alcoholism on a person with quadruple bypass?

Interesting question: In some studies, light to moderate drinking (<7 drinks/week in women. <14 drinks/week in men) has been associated with reduced cardiovascular risk. Anything more increases risk, with binge drinking even worse. You ask about "alcoholism" -- and this exposes a person to direct damage to the heart muscle, not just from nutritional problems. http://www.ncbi.nlm.nih.gov/pubmed?term=9192055.

Not good: Quadruple bypass! i hope you are doing okay. It's best to discuss this question in detail with your cardiologist since he/she is likely aware of all your risks; however, just for the record ongoing substance abuse of any kind including alcoholism and smoking will increase chances of a heart attack.

Multiple: Alcohol elevates liver enzymes which changes metabolism of other drugs. It also has adverse effects on the heart and vessels in multiple ways: by increasing inflammation, direct effects on the heart, increasing body weight and others.

Nothing good!: Alcohol is a risk factor for further blockages in the coronary and brain arteries. Go to AA or talk to an addiction specialist to get help ASAP!