PAT/SVT can be genetic in children. However there are other causes for SVT. You should definitely talk to your physician.
Supraventricular tachycardia (SVT) is often caused by having extra electrical circuits in the heart. It may also be caused by valve disease or blockage of the arteries. Thyroid disease or heart failure may also cause this problem. Other causes may be drinking too much alcohol, smoking, or drinking too much caffeine, such as in coffee or soda.. Using too much cold
medicine may also cause SVT. Stress may cause you to have a SVT attack.
Take care of you.