Takotsubo cardiomyopathy and new-onset right bundle branch block in uncomplicated right ventricle pacing: Cause or coincidence?

Abstract

Normally in the right ventricular (RV) paced rhythm, the electrocardiogram pattern will be of left bundle branch block (LBBB) pattern. A small percentage of patients can have right bundle branch block (RBBB) pattern in uncomplicated RV pacing. We are reporting here a rare occurrence of a new-onset RBBB in an RV paced patient which was coinciding with the onset of takotsubo cardiomyopathy following pulse generator re-implantation procedure.

Keywords

• left bundle branch block in right ventricle pacing
• right bundle branch block in right ventricle pacing
• stress cardiomyopathy
• takotsubo cardiomyopathy