Tachycardia is when your heart beats faster than normal, even when you’re not doing anything. Junctional tachycardia is a form of supraventricular tachycardia, a type of racing pulse caused by a ...

A young woman in her 20s who was 8 months into her first pregnancy presented with periodic heart palpitations at rest. The patient had been experiencing palpitations that lasted for a few minutes and ...

Peter Spector, M.D.; Nicole Habel, M.D. The first step in an electrophysiologic study is passive observation. One can examine the initiation and termination of tachycardia for clues as to its ...

Ectopic atrial tachycardia affects the upper chambers of the heart, causing a faster-than-usual heart rate. This type of arrhythmia is more common in younger people. You can treat it with medications ...

The electrophysiologic mechanism may be due to either enhanced automaticity or triggered activity. In contrast to the paroxysmal variety, the nonparoxysmal type develops gradually and disappears ...