My question is whether the abdominal cramps could have caused me to go into AFib. — I.J.M.

This is commonly described as varying RR intervals. This means an ECG showing atrial fibrillation will have no visible P waves and an irregularly irregular QRS complex. The ventricular rate is ...

This ECG shows atrial fibrillation with an uncontrolled ventricular ... These wide QRS complexes show the R is smaller than the R' favoring a rate dependent right bundle branch block ...

Seeing a loved one pass out with their eyes rolled back is a terrifying thing to experience. That minute or two you li ...

and the only way to confirm an atrial fibrillation (AFib) is to get an electrocardiogram (EKG) from a cardiologist. SEE ALSO: A guide to wearable fitness trackers because there are literally too ...

In Friday's Health headlines, it's heart month, and we're talking about AFib, portable EKG devices, and how stress this season can be hard on the heart. In Friday's Health headlines, it's heart ...