But for most people with heart problems causing breathlessness, once an accurate diagnosis is made, treatment can be offered which can make a substantial difference to quality of life and the ability to exercise.
A range of problems with the heart can cause shortness of breath. Heart failure - weakness of the muscle of the heart - is a common and very treatable cause. Other causes can include coronary artery disease, as some people experience their ‘angina’ as breathlessness rather than a pain. Heart valve problems can cause breathlessness, and also heart rhythm disorders (arrhythmias).
Investigations needed may include echocardiogram, cardiac catheterisation or ECG monitoring.