Journal of Arrhythmia (Oct 2012)

Atrioventricular reentrant tachycardia with a 2:1 right bundle branch block

  • Jun Kim, MD, PhD,
  • Jeong Su Kim, MD, PhD,
  • Yong Hyun Park, MD, PhD,
  • Gi-Byoung Nam, MD, PhD

DOI
https://doi.org/10.1016/j.joa.2012.07.006
Journal volume & issue
Vol. 28, no. 5
pp. 294 – 296

Abstract

Read online

The phenomenon of a 2:1 bundle branch block is reported during atrioventricular (AV) nodal reentrant tachycardia, sinus tachycardia, atrial fibrillation, and atrial flutter. A 2:1 bundle branch block is attributed to first- and second-degree bundle branch block, linking, electrical alternans, aberrancy, or supernormal conduction. However, the same phenomenon has not been reported in AV reentrant tachycardia. Herein, we report the case of a 52-year-old man presenting with orthodromic atrioventricular reentrant tachycardia with a 2:1 right bundle branch block.

Keywords