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).

PACs and PVCs are usually harmless but can ... These devices are worn on the body and record heart rhythms over a long period (days to weeks) while a person goes about their typical day.

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 ...

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".