What are the the risks & drawbacks of heart bypass surgery - not the benefits?

See below: Risks include death, stroke, heart attack, kidney failure, respiratory failure, bleeding and infection. Gi or bowel or liver complications are much less frequent but can occur. The drawback is that it is a major operation that may take 2 - 3 months to fully recover from. The good news is that the overwhelming majority of patients do very well with marked improvement in quality of life afterward.

Low risk: For coronary bypass operations:the list includes dying, bleeding and reoperation, infection treated by antibiotics, stroke which is rare unless other risks. Those who need the surgery have higher risks of these items without having an indicated operation. In general the risks added together are less than 2% even in these ill persons.