Bundle branch reentry tachycardia

Bundle branch reentry ventricular tachycardia, a unique form of reentrant ventricular tachycardia involving the His–Purkinje system, occurs in patients with cardiomyopathy and His–Purkinje conduction disease. It responds poorly to pharmacological therapy and can be cured effectively with catheter ablation. However, even after ablation, patients may remain at risk for total mortality and sudden cardiac death and may require further therapies including cardiac resynchronization therapy defibrillators.