This ectopic focus becomes the predominant pacemaker ... Brief atrial tachycardia is seen very commonly on ambulatory ECG monitoring in the elderly and is frequently asymptomatic.

The ECG will show a premature, ectopic P wave occuring and then no QRS complex afterwards. When this occurs in a pattern of bigeminy, the interpreter may be fooled into thinking that sinus ...

ECG plays an important role in detection of several ... higher automaticity – ectopic beats; and re-entry – atrial tachyarrhythmia; and higher vulnerability to arrhythmia – heart rate ...