Premium
Alternation of Right Bundle Branch Block with Beats Showing Normal Conduction and with a Less Complete Right Bundle Branch Block Pattern
Author(s) -
VERECKEI ANDRÁS,
TENCZER JÓZSEF,
HICKMAN MICHAEL
Publication year - 2009
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.2009.02468.x
Subject(s) - medicine , right bundle branch block , cardiology , bundle branch block , electrocardiography , bundle , materials science , composite material
We report the case of an 80‐year‐old man with a preexistent right bundle branch block (RBBB) who underwent dobutamine stress echocardiography. As the sinus cycle length gradually decreased during the stress test, he first developed a 2:1 RBBB pattern alternating with beats showing normal conduction and then an alternating 2:1 less complete and more complete RBBB pattern. An elucidation of the potential mechanism of the latter very rare phenomenon is provided.