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Sudden QRS morphology change during ventricular pacing in a scar-related isthmus What is the mechanism?

Abstract：

:We present an example of sudden modification in QRS morphology during ventricular pacing inside a scar-related isthmus. This is explained by a "concealed" sudden block in both the orthodromic and antidromic wavefront directions, allowing then the activation to proceed through a now overt antidromic conduction.

journal_name

J Electrocardiol

journal_title

Journal of electrocardiology

authors

Maury P,Rollin A,Sellal JM,Duparc A,Mondoly P,Cardin C,De Chillou C

doi

10.1016/j.jelectrocard.2016.07.035

subject

Has Abstract

pub_date

2016-01-01 00:00:00

pages

973-976

issue

6

eissn

0022-0736

issn

1532-8430

pii

S0022-0736(16)30113-3

journal_volume

49

pub_type

杂志文章

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