Please provide your email address to receive an email when new articles are posted on . A fast-acting nasal spray was safe and effective for patients self-treating for repeated episodes of paroxysmal ...

A 29-year-old woman has a known history of palpitations from a diagnosis of supraventricular tachycardia that usually terminates when she performs a Valsalva maneuver. Today, she presents to the ...

I'm lying on my back with my legs in the air and thumb in my mouth, blowing out hard. But it's not working. My heart is still going a million miles an hour. I'd experienced episodes of rapid heartbeat ...

A 31-year-old woman with no significant medical history presents with intermittent heart palpitations, dizziness, shortness of breath, and fatigue provoked by exercise. Can you make the diagnosis? A ...

This ECG has a narrow QRS complex initally, then a fast heart rate, regular rhythm and no identifiable P wave activity which suddenly turns to a wide complex in a left bundle branch block pattern. The ...

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 ...