then the rhythm is referred to as “atrial bigeminy” as seen in this strip above. If a PAC occurs when the AV node has not yet recovered from the refractory period, it will fail to conduct to ...

Bigeminy is an irregular heart rhythm where every normal beat ... and are called premature atrial contractions (PACs). Ventricular bigeminy: The extra beats come from the lower heart chambers ...

Patients requiring a pacemaker often have atrial fibrillation (AF), which increases the risk of thromboembolism and, consequently, the risk of morbidity and mortality. To maintain sinus rhythms ...

resulting in an altered heart beat muscle contraction rhythm. These alterations to heart beat rhythm can include changes in heart rate, irregularity of heart beats, or fibrillation of the heart ...

Irregular heart rhythm -- arrhythmia -- is when your heart doesn't keep up a good beat. Learn what it means here. You may not know what a heart valve is -- until it stops working right.

Thus it must "skip a beat" and it will resume exactly 2 P to P intervals after the last normal sinus beat. When every other QRS complex is a PAC, then the rhythm is referred to as "atrial bigeminy".