High-density mapping of de novo focal atrial tachycardias using a new software: Protected low-voltage areas by zones of conduction delay

Konstantinos P. Letsas; Michael Efremidis; George Bazoukis; Stylianos Dragasis; Athanasia Megarisiotou; Panagiotis Mililis; Athanasios Saplaouras; Konstantinos Vlachos; Dimitrios Asvestas; Kosmas Valkanas; Gary Tse; Antonios Sideris

doi:10.1002/joa3.12380

High-density mapping of de novo focal atrial tachycardias using a new software: Protected low-voltage areas by zones of conduction delay

Konstantinos P. Letsas
, Michael Efremidis
, George Bazoukis
, Stylianos Dragasis
, Athanasia Megarisiotou
, Panagiotis Mililis
, Athanasios Saplaouras
, Konstantinos Vlachos
, Dimitrios Asvestas
, Kosmas Valkanas
, Gary Tse
, Antonios Sideris

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

1 Citation (Scopus)

Abstract

Background: The pathophysiological mechanism of focal atrial tachycardias (AT) remains obscure. Methods: Fifteen patients (6 males, age 45 ± 18) with focal AT underwent high-density activation mapping using a new software called extended early-meets-late (EEML). Results: Irrespective of the arrhythmia mechanism, low bipolar voltage fractionated signals (0.14 ± 0.10 mV) were seen at the earliest activation site. The mean low-voltage area (LVA) at the earliest activation site was 3.2 ± 1.0 cm². EEML mapping revealed zones of conduction delay at the borders of LVAs. Conclusions: LVAs protected by zones of slow conduction appears to play an important role in the initiation and maintenance of focal ATs.

Original language	English
Pages (from-to)	785-788
Number of pages	4
Journal	Journal of Arrhythmia
Volume	36
Issue number	4
DOIs	https://doi.org/10.1002/joa3.12380
Publication status	Published - 1 Aug 2020
Externally published	Yes

Keywords

ablation
electroanatomical mapping
focal atrial tachycardia

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10.1002/joa3.12380

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Letsas, K. P., Efremidis, M., Bazoukis, G., Dragasis, S., Megarisiotou, A., Mililis, P., Saplaouras, A., Vlachos, K., Asvestas, D., Valkanas, K., Tse, G., & Sideris, A. (2020). High-density mapping of de novo focal atrial tachycardias using a new software: Protected low-voltage areas by zones of conduction delay. Journal of Arrhythmia, 36(4), 785-788. https://doi.org/10.1002/joa3.12380

@article{ce73cd3a27534ad581d506e1c12130a9,

title = "High-density mapping of de novo focal atrial tachycardias using a new software: Protected low-voltage areas by zones of conduction delay",

abstract = "Background: The pathophysiological mechanism of focal atrial tachycardias (AT) remains obscure. Methods: Fifteen patients (6 males, age 45 ± 18) with focal AT underwent high-density activation mapping using a new software called extended early-meets-late (EEML). Results: Irrespective of the arrhythmia mechanism, low bipolar voltage fractionated signals (0.14 ± 0.10 mV) were seen at the earliest activation site. The mean low-voltage area (LVA) at the earliest activation site was 3.2 ± 1.0 cm2. EEML mapping revealed zones of conduction delay at the borders of LVAs. Conclusions: LVAs protected by zones of slow conduction appears to play an important role in the initiation and maintenance of focal ATs.",

keywords = "ablation, electroanatomical mapping, focal atrial tachycardia",

author = "Letsas, \{Konstantinos P.\} and Michael Efremidis and George Bazoukis and Stylianos Dragasis and Athanasia Megarisiotou and Panagiotis Mililis and Athanasios Saplaouras and Konstantinos Vlachos and Dimitrios Asvestas and Kosmas Valkanas and Gary Tse and Antonios Sideris",

note = "Publisher Copyright: {\textcopyright} 2020 The Authors. Journal of Arrhythmia published by John Wiley \& Sons Australia, Ltd on behalf of the Japanese Heart Rhythm Society.",

year = "2020",

month = aug,

day = "1",

doi = "10.1002/joa3.12380",

language = "English",

volume = "36",

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Letsas, KP, Efremidis, M, Bazoukis, G, Dragasis, S, Megarisiotou, A, Mililis, P, Saplaouras, A, Vlachos, K, Asvestas, D, Valkanas, K, Tse, G & Sideris, A 2020, 'High-density mapping of de novo focal atrial tachycardias using a new software: Protected low-voltage areas by zones of conduction delay', Journal of Arrhythmia, vol. 36, no. 4, pp. 785-788. https://doi.org/10.1002/joa3.12380

TY - JOUR

T1 - High-density mapping of de novo focal atrial tachycardias using a new software

T2 - Protected low-voltage areas by zones of conduction delay

AU - Letsas, Konstantinos P.

AU - Efremidis, Michael

AU - Bazoukis, George

AU - Dragasis, Stylianos

AU - Megarisiotou, Athanasia

AU - Mililis, Panagiotis

AU - Saplaouras, Athanasios

AU - Vlachos, Konstantinos

AU - Asvestas, Dimitrios

AU - Valkanas, Kosmas

AU - Tse, Gary

AU - Sideris, Antonios

PY - 2020/8/1

Y1 - 2020/8/1

N2 - Background: The pathophysiological mechanism of focal atrial tachycardias (AT) remains obscure. Methods: Fifteen patients (6 males, age 45 ± 18) with focal AT underwent high-density activation mapping using a new software called extended early-meets-late (EEML). Results: Irrespective of the arrhythmia mechanism, low bipolar voltage fractionated signals (0.14 ± 0.10 mV) were seen at the earliest activation site. The mean low-voltage area (LVA) at the earliest activation site was 3.2 ± 1.0 cm2. EEML mapping revealed zones of conduction delay at the borders of LVAs. Conclusions: LVAs protected by zones of slow conduction appears to play an important role in the initiation and maintenance of focal ATs.

AB - Background: The pathophysiological mechanism of focal atrial tachycardias (AT) remains obscure. Methods: Fifteen patients (6 males, age 45 ± 18) with focal AT underwent high-density activation mapping using a new software called extended early-meets-late (EEML). Results: Irrespective of the arrhythmia mechanism, low bipolar voltage fractionated signals (0.14 ± 0.10 mV) were seen at the earliest activation site. The mean low-voltage area (LVA) at the earliest activation site was 3.2 ± 1.0 cm2. EEML mapping revealed zones of conduction delay at the borders of LVAs. Conclusions: LVAs protected by zones of slow conduction appears to play an important role in the initiation and maintenance of focal ATs.

KW - ablation

KW - electroanatomical mapping

KW - focal atrial tachycardia

UR - https://www.scopus.com/pages/publications/85086358304

U2 - 10.1002/joa3.12380

DO - 10.1002/joa3.12380

M3 - Article

AN - SCOPUS:85086358304

SN - 1880-4276

VL - 36

SP - 785

EP - 788

JO - Journal of Arrhythmia

JF - Journal of Arrhythmia

IS - 4

ER -

High-density mapping of de novo focal atrial tachycardias using a new software: Protected low-voltage areas by zones of conduction delay

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