A very narrow preexisting isthmus in a case with typical atrial flutter

Takumi Yamada; Yoshimasa Murakami; Vance J. Plumb; G. Neal Kay

doi:10.1111/j.1540-8159.2007.00733.x

A very narrow preexisting isthmus in a case with typical atrial flutter

Takumi Yamada, Yoshimasa Murakami, Vance J. Plumb, G. Neal Kay

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English (US)
Pages (from-to)	709-712
Number of pages	4
Journal	PACE - Pacing and Clinical Electrophysiology
Volume	30
Issue number	5
DOIs	https://doi.org/10.1111/j.1540-8159.2007.00733.x
State	Published - May 2007
Externally published	Yes

Keywords

Atrial flutter
Cavo-tricuspid isthmus
Conduction block
Double potential
Radiofrequency catheter ablation

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10.1111/j.1540-8159.2007.00733.x

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abstract = "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.",

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AU - Murakami, Yoshimasa

AU - Plumb, Vance J.

AU - Kay, G. Neal

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AB - 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.

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KW - Cavo-tricuspid isthmus

KW - Conduction block

KW - Double potential

KW - Radiofrequency catheter ablation

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A very narrow preexisting isthmus in a case with typical atrial flutter

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