The Heart Rhythm Society brings you an online dictionary of common medical terms related to heart, and rhythm problems.
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What is Cardiac Resynchronization Therapy?
Cardiac Resynchronization Therapy (CRT) can relieve CHF symptoms by improving the timing of the heart’s contractions, or beats, which protects patients from abnormally slow and fast heart rhythms. While not all patients will qualify for or benefit from CRT, some patients may have features visible on their electrocardiogram (ECG or EKG) indicating that they may improve with CRT.
What is Cardioversion?
Cardioversion is a corrective procedure where an electrical shock is delivered to the heart to convert, or change, an abnormal heart rhythm back to normal sinus rhythm.
What is Electrophysiology?
Electrophysiology is a subspecialty branch of cardiology. An electrophysiologist (EP) is highly trained in the management of electrical properties of the heart, and is the most knowledgeable doctor to deal with the many often complex options for treating heart beat, or heart rhythm, disorders.
What is Tachycardia?
Tachycardia is an abnormally fast heart rhythm, or tachycardia can prove dangerous because the racing interferes with the heart’s ability to contract properly. As a result, a victim may suffer a range of symptoms, from lightheadedness to sudden cardiac arrest.