the P wave morphology would be different from the normal sinus P wave morphology. When every other QRS complex is a premature atrial contraction, then the rhythm is referred to as “atrial ...

A premature atrial contraction (PAC ... to the AV node recovering (the AV node is still refractory), a non-sinus P wave will be seen that is not followed by a QRS complex (non-conducted).

A new study has linked prolonged P-wave duration to increased risk for sudden cardiac death (SCD), independent of cardiovascular risk factors and atrial fibrillation. 1 This suggests P-wave ...

The regular arrhythmia occurring at the beginning of the electrocardiogram was identified as ventricular bigeminy. Single ventricular premature complexes (VPCs), as well as pairs and triplets of ...