Locations of High Contact Force During Left Atrial Mapping in Atrial Fibrillation Patients Electrogram Amplitude and Impedance Are Poor Predictors of Electrode-Tissue Contact Force for Ablation of Atrial Fibrillation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023001%3A_____%2F13%3A00058779" target="_blank" >RIV/00023001:_____/13:00058779 - isvavai.cz</a>

Výsledek na webu

<a href="http://circep.ahajournals.org/content/6/4/746" target="_blank" >http://circep.ahajournals.org/content/6/4/746</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1161/CIRCEP.113.978320" target="_blank" >10.1161/CIRCEP.113.978320</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Locations of High Contact Force During Left Atrial Mapping in Atrial Fibrillation Patients Electrogram Amplitude and Impedance Are Poor Predictors of Electrode-Tissue Contact Force for Ablation of Atrial Fibrillation

Popis výsledku v původním jazyce

Background-During radiofrequency ablation, high electrode-tissue contact force (CF) is associated with increased risk of steam pop and perforation. The purpose of this study, in patients undergoing ablation of paroxysmal atrial fibrillation, was to: (1)identify factors producing high CF during left atrial (LA) and pulmonary vein mapping; (2) determine the ability of atrial potential amplitude and impedance to predict CF; and (3) explore the feasibility of controlling radiofrequency power based on CF. Methods and Results-A high-density map of LA/pulmonary veins (median 328 sites) was obtained in 18 patients undergoing atrial fibrillation ablation using a 7.5-Fr irrigated mapping/ablation catheter to measure CF. Average CF was displayed on the 3D map. For 5682 mapped sites, CF ranged 1-144 g (median 8.2 g). High CF (>= 35 g) was observed at only 118/5682 (2%) sites, clustering in 6 LA regions. The most common high CF site (48/113 sites in 17/18 patients) was located at the anterior/righ

Název v anglickém jazyce

Locations of High Contact Force During Left Atrial Mapping in Atrial Fibrillation Patients Electrogram Amplitude and Impedance Are Poor Predictors of Electrode-Tissue Contact Force for Ablation of Atrial Fibrillation

Popis výsledku anglicky

Background-During radiofrequency ablation, high electrode-tissue contact force (CF) is associated with increased risk of steam pop and perforation. The purpose of this study, in patients undergoing ablation of paroxysmal atrial fibrillation, was to: (1)identify factors producing high CF during left atrial (LA) and pulmonary vein mapping; (2) determine the ability of atrial potential amplitude and impedance to predict CF; and (3) explore the feasibility of controlling radiofrequency power based on CF. Methods and Results-A high-density map of LA/pulmonary veins (median 328 sites) was obtained in 18 patients undergoing atrial fibrillation ablation using a 7.5-Fr irrigated mapping/ablation catheter to measure CF. Average CF was displayed on the 3D map. For 5682 mapped sites, CF ranged 1-144 g (median 8.2 g). High CF (>= 35 g) was observed at only 118/5682 (2%) sites, clustering in 6 LA regions. The most common high CF site (48/113 sites in 17/18 patients) was located at the anterior/righ

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

FA - Kardiovaskulární nemoci včetně kardiochirurgie

OECD FORD obor

—

Projekt

—

Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Circulation-Arrhythmia and Electrophysiology

ISSN

1941-3149

e-ISSN

—

Svazek periodika

6

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

746-753

Kód UT WoS článku

000323323900024

EID výsledku v databázi Scopus

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