The complete circulation:
Closure of a valve prevents back flow.
Heart valves may become faulty. A valve may not:
A patient will not always have symptoms. A scan of the heart can diagnose the problem. When symptoms are present, these are shortness of breath, dizziness, rapid heart rate and chest pain. The problem can lead to heart failure.
If the condition is severe, the patient will require surgery.
Faulty heart valves can be replaced:
The operation is usually successful. Mechanical valves last longer, but blood can clot on them. A patient may need long-term medication that prevents blood clots developing. Biological valves are more likely to wear out.