Note the gradual onset of the junctional mechanism as the sinus cycle length increases from 635-670 milliseconds while the ectopic rhythm usurps ... The right atrial electrogram tag identifies ...

Atrial fibrillation, or A-fib, is an irregular heart rhythm that increases a person's risk of stroke, heart failure and even premature death. While many risk factors contribute to A-fib ...

Harbaugh has what's called an atrial flutter, which is a type of arrhythmia ... "Did an [electrocardiogram], and they said it was back to the sinus rhythm," Harbaugh told reporters.