The rhythm is either ventricular tachycardia or supraventricular tachycardia ... This is not obvious on the 12-lead ECG tracing, although the heart rate during the tachycardia is almost exactly ...

Bidirectional ventricular tachycardia is quite rare, but pathognomonic for digoxin toxicity. This ECG has two distinct ... pattern since they are upright in lead V1. One of the QRS complexes ...

As noted above, the precordial leads are unreliable, compromising by their inclusion calculations deriving from the set of 12 ECG leads. It appears, therefore, that using sums of data from the six ...

CV evaluation included history, PE, 12-lead and exercise ECG ... and systemic hypertension in 11 (4%). In addition, ventricular (polymorphic, couplets or non-sustained ventricular tachycardia) or ...