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 ...

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 ...

Recording an ECG on a previously used tape that is incompletely erased results in the simultaneous registration of two ECGs and potentially the misinterpretation of a "parasystolic" ectopic rhythm ...

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 ...