Bidirectional ventricular tachycardia

Rhythm strip showing bidirectional ventricular tachycardia which may be a manifestation of digitalis toxicity. This rare, life-threatening tachyarrhythmia is characterized by beat-to-beat changes in the polarity of consecutive premature ventricular complexes. It may also occur in other settings, including catecholaminergic polymorphic ventricular tachycardia.