Dear Umar Khan,
Supraventricular tachycarda (SVT) occurs when there is an extra electrical pathway that connects the top and the bottom of the heart, so that electricity goes down the normal pathway
, then comes back up the extra pathway
quickly. It causes a fast abnormal heartrate, called a dysrhythmia; SVT is just one of many kinds of dysrhythmias. Although I am not evaluating her myself, so I can’t tell you everything about her prognosis for sure, there are a few things that I can say.