SVTs are usually identified by a burst of rapid heartbeats that may begin and end suddenly. Supraventricular tachycardia (SVT) includes different forms of arrhythmias that begin above the ventricles. Supraventricular arrhythmias, or atrial arrhythmiasĪtrial arrhythmias, also known as supraventricular arrhythmias, begin in the atrium or upper chamber of the heart above the ventricles. This can cause sudden cardiac arrest and death without immediate treatment. When you have this kind of arrhythmia, your ventricles can’t pump blood into your body, and your heart rate drops quickly. These erratic electrical impulses, sometimes triggered by a heart attack, cause your heart’s ventricles to quiver. Ventricular fibrillation (VF) involves sudden, rapid, irregular, and chaotic heartbeats in the ventricle. It may also lead to more serious ventricular arrhythmias, such as ventricular fibrillation. VT is dangerous when it lasts longer than a few seconds. It can cause a heart rate of 100 beats per minute or higher with the rhythm originating in the bottom chamber of the heart. Ventricular tachycardia (VT) typically occurs in people who have had heart disease or heart-related issues, like coronary artery disease or a prior heart attack, but can occur in those with structurally normal hearts. Torsades de Pointes, which is an uncommon but specific type of ventricular tachycardia that can be life threateningīoth ventricular tachycardia and ventricular fibrillation may need to be treated immediately, especially if you have other heart conditions.premature ventricular beats (PVCs), which are extra heartbeats that begin in the ventricles.Types of ventricular arrhythmias can include: Ventricular arrhythmias begins in the ventricles, or the lower chambers, of the heart. However, you may need immediate medical attention if it lasts longer than 30 minutes or is accompanied by chest pain. Typically, if this condition lasts only a few minutes, it may not be serious. Your ventricles may not be able to fill with the necessary amount of blood to pump to the rest of your body. This rapid heartbeat can affect the way your heart pumps blood. Tachycardia occurs when your heart rate speeds up to more than 100 beats per minute. This condition can be present from birth or develop as the result of another condition, such as congenital heart disease or sleep apnea. Sinus arrhythmia is one type of sick sinus syndrome, a group of disorders related to the sinus node. premature heartbeat, in which the heart has an extra beatīradycardia occurs when your heart rate slows to under 60 beats per minute.Ĭonditions that cause a slow heart rate can include:.supraventricular arrhythmia, which begins above the ventricles.ventricular arrhythmia, which begins in the ventricles.tachycardia, in which the heart rate is too fast.
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