BIDIRECTIONAL TACHYCARDIA

Bidirectional ventricular tachycardia.

Bidirectional ventricular tachycardia?

A 65-year-old woman was admitted to the hospital because of a syncopal episode with documented transient complete atrioventricular block. A DDD pacemaker was implanted. Post implantation, the patient was diagnosed with bidirectional ventricular tachycardia. Analysis of the arrhythmia and differential diagnosis is performed.

Papillary Muscle Ventricular Tachycardia Masquerading as Bidirectional Ventricular Tachycardia

Introduction: Bidirectional ventricular tachycardia (VT) is a rare type of VT that appears in digoxin toxicity and young patients with catecholaminergic polymorphic VT (CPVT). The occurrence of bidirectional VT originating from the papillary muscle has not been reported in the literature. Case Presentation: A 38-year-old female presented with long standing palpitation lasting several months. Pa...

Bidirectional Ventricular Tachycardia: A Hallmark of Catecholaminergic Polymorphic Ventricular Tachycardia

Catecholaminergic polymorphic ventricular tachycardia is a familial cardiac arrhythmia that is related to RYR2 or CASQ2 gene mutation. It occurs in patients with structurally normal heart and causes exercise-emotion triggered syncope and sudden cardiac death. We present a 13 year-old girl with recurrent episodes of exercise-related syncope and prior history of sudden death in a first degree rel...

His bundle electrogram during bidirectional tachycardia.

The case is reported of a 66-year-old woman with bidirectional tachycardia caused by digitalis intoxication. His bundle records demonstrated the presence of two foci, one junctional and the other a fascicular one.