To find out how well your heart is working, your doctor may ask you to have an electrocardiogram (ECG). Learn more about it and why you may need an ECG.
Long QT syndrome
Long QT syndrome (LQTS) is a disorder of the heart's electrical system that can cause fast, chaotic heartbeats, called arrhythmias.
An angiogram is a test used to help detect abnormal blood vessels, clots and other problems. Learn more about angiograms including what to expect.
Aortic valve replacement
The aortic valves in the heart keep blood flowing in the correct direction. Learn how to prepare for an aortic valve replacement and what to expect.
This condition can disrupt the rhythm of your heart. It can cause palpitations, fainting or, in serious cases, cardiac arrest.
Pericarditis is inflammation of the thin sheath around your heart. It can lead to problems ranging from swelling to a serious drop in blood pressure.
Costochondritis is an inflammation in the cartilage that joins your ribs to your breastbone. If you have costochondritis, learn how you can reduce the pain.
Heart murmurs are extra sounds made by the heart. Some heart murmurs are serious, some are not — here's what you need to know.
Children with Noonan syndrome may have odd facial features, restricted growth and heart defects, but most, with therapy, go on to lead normal lives.
Cardiac enzyme tests can check whether the heart muscle is damaged, and indicate if a person has had a heart attack.