Supraventricular tachycardia is a rapid heartbeat that starts in the atria or AV node, and is not usually life threatening.
Common types of supraventricular tachycardia are atrial flutter and atrial fibrillation. It must be corrected immediately, otherwise it may cause low blood pressure, loss of consciousness and even death. Bradycardia is when your heart beats too slowly, generally less than 60 beats per minute. Bradycardia may be normal for you, and can be associated with being physically fit.
However, it can also be caused by many physical disorders, such as sick sinus syndrome and heart block. It can be caused by ageing or by coronary heart disease.
Occasional palpitations during periods of emotional or physical stress are normal and are nothing to worry about. If you have persistent arrhythmias, ask your doctor for a thorough medical examination. Recommended tests include:. Sometimes, the heart is perfectly healthy, but its regular rhythm is interrupted by emotional stress or physical activity levels. This page has been produced in consultation with and approved by:. Aortic stenosis may be congenital present from before birth , but is often diagnosed during teenage years.
Healthy eating and lifestyle changes can help to manage high blood pressure. Hypertension, or high blood pressure, can increase your risk of heart attack, kidney failure and stroke. Heart Foundation of Australia warns of the risk of high blood pressure and tells you what you can do to keep your blood pressure down. CPR is a life-saving skill that everyone should learn from an accredited organisation. Content on this website is provided for information purposes only. These plaques make it difficult for blood to flow and can put pressure on the heart.
Heart surgery Heart surgery is a life-saving operation—it can remove clots and help you get your life back. But, operating on the heart can change the way the heart works, including the way your heart beats. Heart surgery can increase your risk of arrhythmias, so your doctors will often monitor your heart after surgery. This scar tissue can cause the heart to beat irregularly by restricting or changing the heart. After a heart attack , there is also risk of cardiomyopathy or an abnormality of the heart.
With cardiomyopathy , your heart may swell and make it harder to pump blood. Auscultation of cardiac murmurs in adults. Infective endocarditis IE prophylaxis. Mayo Clinic; Heart murmurs. American Heart Association. Geggel RL. Approach to the infant or child with a cardiac murmur. Innocent cardiac murmur child. Nishimura RA, et al. Heart valve disease. Medications for heart valve symptoms.
Options for heart valve repair. Options for heart valve replacement. Options and considerations for heart valve surgery. Sellke FW, et al. Atlas of Cardiac Surgical Techniques.
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