If it happens as a result of exercise, excitement, or fever, it's usually not a cause for concern and doesn't need treatment. Tachycardia occurs when your heart suddenly starts beating very fast. In some cases, a special procedure called an ablation, which purposely scars the defective part of the heart to prevent it from passing on unwanted signals, may be recommended. Blood thinners and medication to steady the heart rate and rhythm are mainstays of treatment. The condition itself isn't life-threatening, but it increases the risk for stroke by allowing blood to pool and clot in the atria - increasing risk fivefold, says Hugh Calkins, MD, an electrophysiologist and director of the Cardiac Arrhythmia Service at Johns Hopkins Medicine in Baltimore.Ītrial fibrillation risk is lower before age 50 but then steadily increases with age. Atrial fibrillation occurs when the heart's upper chambers (the atria) begin to beat rapidly and irregularly. The most common type of arrhythmia, atrial fibrillation, affects about 2.7 million people in the United States, according to the American Heart Association. Some of these different types of arrhythmias can be incredibly dangerous if not properly treated, while others may be annoying but are not life-threatening. The defective impulses may cause the heart to beat too slowly or too fast, or to beat in a disorganized and chaotic manner. Problems with this electrical system can cause abnormal heart rhythms, or arrhythmias. Your heart relies on electrical impulses to keep it beating at a steady pace.
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