P waves will not be seen on the ECG in patients with atrial fibrillation. At times, the P wave activity may be observed as “coarse fibrillatory waves,” and the term “coarse atrial ...

When left atrial enlargement occurs, it takes longer for cardiac action potentials to travel through the atrial myocardium; thus, the P wave also lengthens. Therefore, the criteria for diagnosing ...

ECG plays an important role in detection of several stroke risk factors/predictors including atrial fibrillation ... remodeling – Q wave, QRS/QT duration, bundle blocks, P wave duration ...

5,6 It is possible that such cases of SCD could be avoided using electrocardiogram (ECG) for early detection of prolonged P-wave duration ... in patients with atrial fibrillation who are aged ...

These ECG voltage attenuations are of extracardiac mechanism, and impact the amplitude of QRS complexes, P-waves, and T-waves, occasionally resulting also in shortening of the QRS complex and QT ...