The regular arrhythmia occurring at the beginning of the electrocardiogram was identified as ventricular bigeminy ... sinus depolarization would suppress it 2,3. Figure 2: An ECG obtained from ...

This ECG is challenging. The rhythm starts as normal sinus rhythm with a right bundle ... The rhythm is either ventricular tachycardia or supraventricular tachycardia with aberrancy.

There are only a few sinus rhythm QRS complexes available to examine on this ECG. Using lead V1 an incomplete ... of polymorphic (meaning many shapes) ventricular tachycardia.