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.

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 ...

Wandering atrial pacemaker occurs when multiple areas (ectopic foci) within the atrium generate consecutive action potentials that are all conducted to the ventricles. Thus, each QRS complex will ...

When the ECG pattern is monitored for ischemia ... qualitatively at least, detect ectopy. For clinical purposes, this amount of information is usually sufficient. The practicing physician does ...

For ventricular ectopy, an instantaneous rate of >40–50 ... sinus depolarization would suppress it 2,3. Figure 2: An ECG obtained from a beagle dog 21 days later, showing six rhythm strips ...