This Journal feature begins with a case vignette highlighting a common clinical problem. Evidence supporting various strategies is then presented, followed by a review of formal guidelines, when they ...

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 ...

We were unable to process your request. Please try again later. If you continue to have this issue please contact customerservice@slackinc.com. Here is a classic ECG case not usually caught on a ...

Please provide your email address to receive an email when new articles are posted on . CHICAGO — A fast-acting nasal spray safely and effectively converted episodes of paroxysmal supraventricular ...

The initial part of the ECG shows a regular rhythm at a rate of 150 beats/min. The QRS complex duration is normal (0.08 sec) with a normal morphology. The axis is normal between 0° and +90° (positive ...

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 ...

735 subjects (548 men) aged from 10 to 98 years old (mean 54 years, SD ± 15) were submitted to a conventional medical examination and spirometry testing prior to a maximal cardiopulmonary exercise ...