Note that left atrial enlargement is not able to be diagnosed in the presence of atrial fibrillation because this rhythm is defined by erratic atrial activity and no visible P wave on the ECG.

P area and signal-averaged P wave late atrial potential are strong predictors of AF incidence and possibly of stroke incidence. ECG left ventricular hypertrophy is strongly associated with stroke ...

regression of left atrial hypertrophy, or improved intra-atrial conduction, none of which is measurable by echocardiography or the surface ECG. Weight loss produced a dramatic decrease in the ...

When right atrial enlargement occurs, it does not take longer for cardiac action potentials to travel through the atrial myocardium (similar to left atrial ... The ECG criteria for diagnosing ...

A significant and progressive increase in aortic, left and right atrial ... of sudden cardiac death and a normal ECG presented a maximal wall thickness >14 mm. Established upper limits for ...