![]() ![]() Some children with SVT also learn ways to slow their heart rate. A child will only require treatment if arrhythmia episodes are long or frequent.Ī child may take medication to control their SVT. SVT is not life threatening for most children and usually does not require treatment. When SVT disrupts the SA node’s impulses, it can cause a child to develop a faster heart rate than normal. The SA node sets the normal rhythm and rate of the heart. ![]() These abnormal electrical signals interfere with the sinoatrial (SA) node’s electrical impulses. SVT occurs when electrical signals in the upper chambers, or atria, of the heart fire abnormally. Sinus tachycardia commonly occurs alongside a fever, excitement, or exercise. It is common in children and usually does not require treatment. Sinus tachycardia is a regular increase in a child’s heart rate. The two main types of tachycardia that affect children are sinus tachycardia and supraventricular tachycardia (SVT). There are a variety of different types of tachycardia. Tachycardia is the name for a heartbeat that is too fast. There is often no known cause for these contractions, and they usually go away without any treatment. Premature contractions are common in children and teenagers. Premature beats that start in the lower chambers are called premature ventricular contractions. Premature beats start in the heart’s upper chambers and are called premature atrial contractions. If a contraction in a chamber of the heart happens prematurely, it often causes a pause, which causes the next beat to be more forceful.Ī more forceful beat can often feel like the heart has skipped a beat. Premature contractions, sometimes called extra contractions, can cause a child to have an irregular heart rhythm. However, some children may experience fainting, an irregular heart rate, and a fluttering sensation in the chest. People with LQTS can experience an irregular heartbeat in response to emotional stress, sudden surprise, or exercise.Ĭhildren with LQTS may show no symptoms at all. LQTS can trigger dangerous heart rhythms.Ī child will often inherit LQTS, meaning they are born with the disorder and live with it for their whole life. This can affect a child’s heartbeat by upsetting the careful timing of each beat. In LQTS, the ventricles, which are the heart’s lower chambers, take too long to contract and release. Long QT syndrome (LQTS) is a disorder of the heart’s electrical system. Share on Pinterest Bjarte Rettedal/Getty Imagesīelow are some types of arrhythmia that can affect children. ![]()
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