Because the atrial rate is so fast, and the action potentials produced are of such low amplitude, P waves will not be seen on the ECG in patients with atrial fibrillation. At times, the P wave ...

The usual way to detect atrial fibrillation is to record the electrocardiogram (ECG) during an episode and check the waveform. But, in the early stages of atrial fibrillation, it is often ...

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

Atrial fibrillation is the most common chronic arrhythmia. It is characterized by erratic atrial electrical activity with atrial rates of 400 to 600 beats per minute. The P wave is absent on the ...