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Author: Admin | 2025-04-28
This is a procedure in which a cardiologist uses a catheter to burn or freeze part of the inside of the heart.AFib and StrokeAtrial fibrillation is serious because it increases the risk of stroke. If you have ever experienced AFib, you may be able to lower your risk of stroke by taking anticoagulation (blood-thinning) drugs. They may be recommended even if your heart rhythm returns to normal, since the risk of stroke remains. Atrial Flutter Atrial flutter is an arrhythmia that is somewhat similar to AFib, in that it increases the risk of stroke and may require anticoagulation treatment. However, while atrial fibrillation is irregular, atrial flutter is a regular rhythm. This is because an electrical stimulus travels in a circle in the heart's upper chamber and stimulates the heart to contract at a specific rate. Many people with atrial flutter have a heart rate of around 150 bpm. Atrial flutter is often definitively treated with cardiac ablation. Supraventricular Tachycardia Supraventricular tachycardia (SVT) is any heart rhythm that originates above the ventricles. SVT is an umbrella term that technically includes sinus tachycardia, atrial flutter, and atrial fibrillation. However, most of the time when people refer to SVT, they are talking about one of the following arrhythmias:AV nodal reentrant tachycardia (AVNRT)AV reentrant tachycardia (AVRT) These arrhythmias involve abnormalities in the heart's conduction system, such as an "accessory pathway" that allows the electrical conduction to bypass certain areas. These arrhythmias may be treated with medication or cardiac ablation in some cases. Ventricular Tachycardia Ventricular tachycardia (VT or "V-tach") is a serious arrhythmia. In V-tach, the electrical stimulus for the heartbeat is coming from a ventricle (the heart's lower chamber) rather than the upper atria. Sustained VT is life-threatening and can lead to cardiac arrest. This rhythm can be so rapid that the heart is not adequately pumping blood to the brain and other organs. When someone experiences VT, they may not have a pulse and thus will require cardiopulmonary resuscitation (CPR). There are several different types and causes of VT. VT is treated with medications, and in some cases, ablation may be successful. Ventricular Fibrillation Ventricular fibrillation (VF or "VFib") is the most serious rapid heart rhythm. In VF, the heart's electrical system sends out disorganized signals so rapidly that it is unable to beat effectively and is not pumping blood to the rest of the body. The affected person will lose consciousness and have no pulse. People in a VF rhythm require CPR. When to See a Healthcare Provider Tachycardia is considered normal when it occurs during exercise or in response to certain emotions. In some cases, however, a fast heart rate may indicated a serious underlying health condition—such as an
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