Antibiotics in a person with heart murmurs is a topic which many people debate. I would recommend you run this by your primary care doctor
. He or she may be able to help clarify as they will know the exact nature of the heart murmur and the need for antibiotics.
A heart murmur if often (although not always) caused by an abnormal heart valve. There are many types of abnormal heart valves.
In many procedures, especially in oral procedures like a root canal
, the normal bacteria that live in the mouth are disrupted and can enter the blood stream. This happens often, maybe even everytime you brush your teeth. The problem is that during a procedure there is a significant amount of bacteria in the blood. In people with an abnormal heart valve, the bacteria can "stick" to the abnormal heart valve and cause a serious infection known as endocarditis.
Ten years ago we were far more aggressive with antibiotics in people with heart murmurs. Since then we've learned that there are only a few types of murmurs that actually require antibiotics. Please talk to your primary doctor about the type of murmur you have and if you need antibiotics. Good luck.