SVT may cause sweating, lightheadedness, and dizziness. In some cases, people report shortness of breath (dyspnea) or chest discomfort. V-tach usually arises from an underlying structural heart ...

Supraventricular tachycardia is a term used to describe any heart rhythm that is greater than 100 beats per minute originating from above the AV node (the atrium). The term “SVT” can be ...