June 23, 2009 (Boston, Massachusetts) — Prolongation of the PR interval in the ambulatory setting is associated with increased risks of atrial fibrillation, pacemaker implantation, and all-cause ...

BOSTON – A common electrocardiogram (ECG) finding that has largely been considered insignificant may actually signal an increased risk of atrial fibrillation (a chronic heart rhythm disturbance), the ...

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 duration ...

Enlarge Source: Learn the Heart Which of the following does the above ECG represent? The ECG shows sinus tachycardia at about 110 beats per minute with a prolonged PR of 0.22 seconds: first-degree ...

This ECG shows sinus bradycardia at 55 beats per minute with a prolonged PR interval, about 0.24 sec, consistent with first-degree atrioventricular block. The QRS duration is top normal at 0.12 sec ...

Figure 2 shows a regular rhythm at a rate of 90 beats/min. The QRS complex duration is increased (0.14 sec), and there is a morphology of a right bundle branch block with an RSR' morphology in lead V1 ...

A common electrocardiogram finding that has largely been considered insignificant may actually signal an increased risk of atrial fibrillation, the future need for a permanent pacemaker and an ...