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Left atrial structure and function among different subtypes of atrial fibrillation: an echocardiographic substudy of the AMIO-CAT trial

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@article{3d9b594b3672472b9d512c324a888e3e,
title = "Left atrial structure and function among different subtypes of atrial fibrillation: an echocardiographic substudy of the AMIO-CAT trial",
abstract = "AIMS : Little is known about cardiac structure and function among atrial fibrillation (AF) subtypes; paroxysmal AF vs. persistent AF (PxAF), and across AF burden. We sought to assess differences in left atrial (LA) measures by AF subtype and burden.METHODS AND RESULTS : This was a cross-sectional echocardiographic substudy of a randomized trial of AF patients scheduled for catheter ablation. Patients had an echocardiogram performed 0-90 days prior to study inclusion. We performed conventional echocardiographic measures, left ventricular (LV) and LA speckle tracking. Measures were compared between AF subtype and burden (0%, 0-99%, and 99-100%) determined by 72-h Holter monitoring. Of 212 patients, 107 had paroxysmal AF and 105 had PxAF. Those with PxAF had significantly reduced systolic function (LV ejection fraction: 48% vs. 53%; P < 0.001), larger end-systolic and end-diastolic LA volumes (LAVi and LAEDVi), reduced LA emptying fraction (LAEF: 29% vs. 36%, P < 0.001), and reduced LA strain (LAs) (LAs: 20% vs. 26%, P < 0.001). LA measures remained significantly lower in PxAF after multivariable adjustments. All LA measures and measures of systolic function were significantly impaired in patients with 99-100% AF burden, whereas all measures were similar between the other groups (LAVi: 40mL/m2 vs. 33mL/m2 vs. 34mL/m2; LAEDVi: 31mL/m2 vs. 21mL/m2 vs. 22mL/m2, LA emptying fraction: 23% vs. 35% vs. 36%, LAs: 16% vs. 25% vs. 25%, for 99-100%, 0-99%, and 0% AF, respectively, P < 0.001 for all). These differences were consistent after multivariable adjustments.CONCLUSION : LA mechanics differ between AF subtype and burden and these characteristics influence the clinical interpretation of these measures.",
author = "Olsen, {Flemming Javier} and Stine Darkner and Xu Chen and Steen Pehrson and Arne Johannessen and Jim Hansen and Gunnar Gislason and Svendsen, {Jesper Hastrup} and Tor Biering-S{\o}rensen",
note = "Published on behalf of the European Society of Cardiology. All rights reserved. {\textcopyright} The Author(s) 2020. For permissions, please email: journals.permissions@oup.com.",
year = "2020",
month = dec,
day = "1",
doi = "10.1093/ehjci/jeaa222",
language = "English",
volume = "21",
pages = "1386--1394",
journal = "European Heart Journal Cardiovascular Imaging",
issn = "1525-2167",
publisher = "Oxford University Press",
number = "12",

}

RIS

TY - JOUR

T1 - Left atrial structure and function among different subtypes of atrial fibrillation

T2 - an echocardiographic substudy of the AMIO-CAT trial

AU - Olsen, Flemming Javier

AU - Darkner, Stine

AU - Chen, Xu

AU - Pehrson, Steen

AU - Johannessen, Arne

AU - Hansen, Jim

AU - Gislason, Gunnar

AU - Svendsen, Jesper Hastrup

AU - Biering-Sørensen, Tor

N1 - Published on behalf of the European Society of Cardiology. All rights reserved. © The Author(s) 2020. For permissions, please email: journals.permissions@oup.com.

PY - 2020/12/1

Y1 - 2020/12/1

N2 - AIMS : Little is known about cardiac structure and function among atrial fibrillation (AF) subtypes; paroxysmal AF vs. persistent AF (PxAF), and across AF burden. We sought to assess differences in left atrial (LA) measures by AF subtype and burden.METHODS AND RESULTS : This was a cross-sectional echocardiographic substudy of a randomized trial of AF patients scheduled for catheter ablation. Patients had an echocardiogram performed 0-90 days prior to study inclusion. We performed conventional echocardiographic measures, left ventricular (LV) and LA speckle tracking. Measures were compared between AF subtype and burden (0%, 0-99%, and 99-100%) determined by 72-h Holter monitoring. Of 212 patients, 107 had paroxysmal AF and 105 had PxAF. Those with PxAF had significantly reduced systolic function (LV ejection fraction: 48% vs. 53%; P < 0.001), larger end-systolic and end-diastolic LA volumes (LAVi and LAEDVi), reduced LA emptying fraction (LAEF: 29% vs. 36%, P < 0.001), and reduced LA strain (LAs) (LAs: 20% vs. 26%, P < 0.001). LA measures remained significantly lower in PxAF after multivariable adjustments. All LA measures and measures of systolic function were significantly impaired in patients with 99-100% AF burden, whereas all measures were similar between the other groups (LAVi: 40mL/m2 vs. 33mL/m2 vs. 34mL/m2; LAEDVi: 31mL/m2 vs. 21mL/m2 vs. 22mL/m2, LA emptying fraction: 23% vs. 35% vs. 36%, LAs: 16% vs. 25% vs. 25%, for 99-100%, 0-99%, and 0% AF, respectively, P < 0.001 for all). These differences were consistent after multivariable adjustments.CONCLUSION : LA mechanics differ between AF subtype and burden and these characteristics influence the clinical interpretation of these measures.

AB - AIMS : Little is known about cardiac structure and function among atrial fibrillation (AF) subtypes; paroxysmal AF vs. persistent AF (PxAF), and across AF burden. We sought to assess differences in left atrial (LA) measures by AF subtype and burden.METHODS AND RESULTS : This was a cross-sectional echocardiographic substudy of a randomized trial of AF patients scheduled for catheter ablation. Patients had an echocardiogram performed 0-90 days prior to study inclusion. We performed conventional echocardiographic measures, left ventricular (LV) and LA speckle tracking. Measures were compared between AF subtype and burden (0%, 0-99%, and 99-100%) determined by 72-h Holter monitoring. Of 212 patients, 107 had paroxysmal AF and 105 had PxAF. Those with PxAF had significantly reduced systolic function (LV ejection fraction: 48% vs. 53%; P < 0.001), larger end-systolic and end-diastolic LA volumes (LAVi and LAEDVi), reduced LA emptying fraction (LAEF: 29% vs. 36%, P < 0.001), and reduced LA strain (LAs) (LAs: 20% vs. 26%, P < 0.001). LA measures remained significantly lower in PxAF after multivariable adjustments. All LA measures and measures of systolic function were significantly impaired in patients with 99-100% AF burden, whereas all measures were similar between the other groups (LAVi: 40mL/m2 vs. 33mL/m2 vs. 34mL/m2; LAEDVi: 31mL/m2 vs. 21mL/m2 vs. 22mL/m2, LA emptying fraction: 23% vs. 35% vs. 36%, LAs: 16% vs. 25% vs. 25%, for 99-100%, 0-99%, and 0% AF, respectively, P < 0.001 for all). These differences were consistent after multivariable adjustments.CONCLUSION : LA mechanics differ between AF subtype and burden and these characteristics influence the clinical interpretation of these measures.

U2 - 10.1093/ehjci/jeaa222

DO - 10.1093/ehjci/jeaa222

M3 - Journal article

C2 - 32783051

VL - 21

SP - 1386

EP - 1394

JO - European Heart Journal Cardiovascular Imaging

JF - European Heart Journal Cardiovascular Imaging

SN - 1525-2167

IS - 12

ER -

ID: 61391579