Heart racing suddenly during workouts or daily activity? Doctors explain supraventricular tachycardia (SVT), its symptoms, causes, and when to seek help.

(RTTNews) - Milestone Pharmaceuticals Inc. (MIST) has received FDA approval for its first commercial product, CARDAMYST nasal spray, for the conversion of acute symptomatic episodes of paroxysmal ...

Atrioventricular (AV) nodal reentrant tachycardia (AVNRT) is an irregular heart rhythm that can cause excessively fast heart rates. Though not usually serious, early diagnosis can help prevent severe ...

AVNRT commonly affects young, healthy women without structural heart disease. 5 Common tachycardic risk factors include drug induction, caffeine, prior history of heart disease, alcohol use, stress, ...