Premium
A Very Narrow Preexisting Isthmus in a Case with Typical Atrial Flutter
Author(s) -
YAMADA TAKUMI,
MURAKAMI YOSHIMASA,
PLUMB VANCE J.,
KAY G. NEAL
Publication year - 2007
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.1540-8159.2007.00733.x
Subject(s) - medicine , coronary sinus , atrial flutter , inferior vena cava , radiofrequency ablation , ostium , cardiology , ablation , catheter ablation , right atrium , anatomy
A 61‐year‐old woman with typical atrial flutter underwent an electrophysiologic study and radiofrequency catheter ablation. The electroanatomic mapping revealed two contiguous lines of distinct double potentials (DPs) extending anteriorly/posteriorly from the coronary sinus ostium to the inferior vena cava (IVC) border. A large part of the anterior line of the DPs was close and parallel to the tricuspid annulus (TA). An initial discrete radiofrequency application at the very narrow preexisting isthmus between the TA and anterior line of the DPs completed the IVC‐TA isthmus conduction block.