SVT is the most common heart rhythm problem in children. It occurs in as many as 1 in 250 otherwise healthy children.
Sometimes, SVT goes away on its own early in life. If your child has SVT after age 1, the chance that it will go away on its own is low.
Short episodes usually don’t bother the person much. But if the fast heartbeat continues too long, the heart can become fatigued, which can be dangerous.
Tests for a heart rhythm problem usually happen after your child (or a caregiver) notices a fast heartbeat. There are many different causes of a fast heartbeat. It is important to have a heart doctor (cardiologist) confirm the diagnosis of SVT and discuss treatment options.
Children with SVT don’t always need treatment. In general, those with SVT that doesn’t happen often and is well tolerated may simply need to be monitored. Those with more symptoms may take medicines that can decrease the frequency of episodes. There are also procedures that, in most cases, can cure the rhythm problem.