During this procedure, your child is asleep and a flexible, plastic tube is guided into the heart chambers to detect the abnormal electrical pathway with the catheter’s electrodes or sensors. Catheter ablation is a highly successful procedure that can permanently restore the heart’s normal rhythm. Other medications include Digoxin, sodium channel-blockers, or calcium channel-blockers with the same goal to lower the chance of frequent or long episodes of SVT.Ĭatheter ablation. SVT medications such as beta blockers may be recommended to slow your child’s heart rate. If so, our pediatric cardiology team may suggest: Treatment for SVT may only be needed if it the symptoms persist or last a long time. Many irregular heartbeats do not need treatment because the problem may resolve on its own. A push of a button records symptoms in real time. An event monitor can be worn for up to 30 days and it records heart activity when your child experiences symptoms. A Holter Monitor is an ECG/EKG test recorded for 24 or more hours and includes recordings of your child’s heart while at home. A Holter or event monitor is a portable device that records heart activity over an extended period. Our pediatric cardiologists use various tests to diagnosis SVT including electrocardiogram (ECG/EKG), Holter monitor and event monitor.Īn ECG/EKG records the electrical signals in the heart and it provides results as soon as the test is done. The most common symptom is heart palpitations, a fast or pounding heartbeat in your child’s chest.ĭiagnosis of Supraventricular TachycardiaĪt Riley Children’s Health, a pediatric cardiologist will evaluate your child for heart rhythm concerns. Refer to pediatric cardiology if your infant, toddler, or child experiences any of the following tachycardia symptoms causing a fast heart rate. While a high heart rate in children is often the cause of physical activity or illness, a dangerously high heart rate in children (faster than these normal resting heart rates) or tachycardia should be evaluated at a hospital by a pediatric cardiologist. Although SVT is not typically life-threatening, it can cause discomfort, fatigue, dizziness, and shortness of breath.Ī normal heart rate for an infant is 100 to 160 beats per minute while a normal heart rate for children and adults is 60 to 100 beats per minute. When a reaction to stress or other activities causes an irregular heartbeat, this fast heartbeat is called sinus tachycardia.The longer tachycardia occurs, the more tired the heart becomes, which impacts blood flow throughout the body. When a rapid heart rate occurs from time to time it is called paroxysmal supraventricular tachycardia (PSVT). When the normal pathway is disrupted, the heart must work harder to do its job.Ĭhildren may experience a fast heartbeat suddenly, and it may last a few minutes to many hours. This happens when an abnormal electrical pathway exits in the heart and forms a “short circuit.” The short circuit bypasses the normal electrical pathway which causes the heart’s rhythm to beat very rapidly. SVT occurs when a child’s heartbeat does not follow the regular pathway from the atria to the ventricles due to a heart defect or other condition. The top chambers are known as the atria while the lower chambers are called the ventricles.
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