What is the failure rate of bypass?

What is the outlook for recovery after a bypass? 

The outlook is very good. About 500,000 of these operations are performed every year in the United States alone. If, after surgery, the heart attack survivor adopts the right lifestyle and takes medication (if needed), bypasses have a high rate of success.

what is the failure rate of bypass

The rate of failure is very low: about 4 percent of the implanted blood vessels close each year. Failures increase to about 6 percent a year after six years.

If you do not change your lifestyle continuing smoking being he extreme case a new bypass may be necessary after a few years. With each successive bypass the rate of success declines. This makes sense as the heart has already been altered by the first surgery, by a bypass in place that has failed. The picture gets more and more complex for the surgeon with every operation.

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