Bidirectional ventricular tachycardia (BVT) is an uncommon type of polymorphic 
ventricular tachycardia (PVT) with alternating polarity of the QRS complex most 
commonly described digitalis toxicity. Recent data has demonstrated the possible 
molecular basis of this electrocardiographic phenomenon. To our knowledge this 
is the first reported case of BVT in a patient with orthotopic cardiac 
transplantation and coronary allograft vasculopathy.