Intermittent left bundle branch block: What is the mechanism?

J Cardiovasc Electrophysiol. 2019 Aug;30(8):1380-1383. doi: 10.1111/jce.13925. Epub 2019 Apr 5.

Abstract

We present an illustrative case of a patient with intermittent left bundle branch block (LBBB) that underwent electrophysiological study with detailed multielectrode recordings of the right and left septum. The case elucidates the nature and location of conduction block and provides further insight into the underlying mechanisms of LBBB.

Keywords: ECG; intrahisian block; left bundle branch block; left ventricular mapping.

Publication types

  • Case Reports

MeSH terms

  • Action Potentials*
  • Bundle of His / physiopathology*
  • Bundle-Branch Block / diagnosis*
  • Bundle-Branch Block / physiopathology
  • Electrocardiography
  • Electrophysiologic Techniques, Cardiac*
  • Female
  • Heart Rate*
  • Humans
  • Middle Aged
  • Predictive Value of Tests
  • Time Factors