Transesophageal Echocardiography in Ischemic Stroke With Atrial Fibrillation

Background To clarify differences in clinical significance of intracardiac thrombi in nonvalvular atrial fibrillation‐associated stroke as identified by transesophageal echocardiography (TEE) and transthoracic echocardiography (TTE). Methods and Results Using patient data on nonvalvular atrial fibri...

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Main Authors: Kanta Tanaka, Masatoshi Koga, Keon‐Joo Lee, Beom Joon Kim, Tadataka Mizoguchi, Eun Lyeong Park, Juneyoung Lee, Sohei Yoshimura, Jae‐Kwan Cha, Byung‐Chul Lee, Junpei Koge, Hee‐Joon Bae, Kazunori Toyoda
Format: Article
Language:English
Published: Wiley 2021-11-01
Series:Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Subjects:
Online Access:https://www.ahajournals.org/doi/10.1161/JAHA.121.022242
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author Kanta Tanaka
Masatoshi Koga
Keon‐Joo Lee
Beom Joon Kim
Tadataka Mizoguchi
Eun Lyeong Park
Juneyoung Lee
Sohei Yoshimura
Jae‐Kwan Cha
Byung‐Chul Lee
Junpei Koge
Hee‐Joon Bae
Kazunori Toyoda
author_facet Kanta Tanaka
Masatoshi Koga
Keon‐Joo Lee
Beom Joon Kim
Tadataka Mizoguchi
Eun Lyeong Park
Juneyoung Lee
Sohei Yoshimura
Jae‐Kwan Cha
Byung‐Chul Lee
Junpei Koge
Hee‐Joon Bae
Kazunori Toyoda
author_sort Kanta Tanaka
collection DOAJ
description Background To clarify differences in clinical significance of intracardiac thrombi in nonvalvular atrial fibrillation‐associated stroke as identified by transesophageal echocardiography (TEE) and transthoracic echocardiography (TTE). Methods and Results Using patient data on nonvalvular atrial fibrillation‐associated ischemic stroke between 2011 and 2014 from 15 South Korean stroke centers (n=4841) and 18 Japanese centers (n=1192), implementation rates of TEE/TTE, and detection rates of intracardiac thrombi at each center were correlated. The primary outcome was recurrent ischemic stroke at 1 year after the onset. A total of 5648 patients (median age, 75 years; 2650 women) were analyzed. Intracardiac thrombi were detected in 75 patients (1.3%) overall. Thrombi were detected in 7.8% of patients with TEE (either TEE alone or TEE+TTE: n=679) and in 0.6% of those with TTE alone (n=3572). Thrombus detection rates varied between 0% and 14.3% among centers. As TEE implementation rates at each center increased from 0% to 56.7%, thrombus detection rates increased linearly (detection rate [%]=0.11×TEE rate [%]+1.09 [linear regression], P<0.01). TTE implementation rates (32.3%–100%) were not associated with thrombus detection rates (P=0.53). Intracardiac thrombi were associated with risk of recurrent ischemic stroke overall (adjusted hazard ratio [aHR] 2.35, 95% CI, 1.07–5.16). Thrombus‐associated ischemic stroke risk was high in patients with TEE (aHR, 3.13; 95% CI, 1.17–8.35), but not in those with TTE alone (aHR, 0.89; 95% CI, 0.12–6.51). Conclusions Our data suggest clinical relevance of TEE for accurate detection and risk stratification of intracardiac thrombi in nonvalvular atrial fibrillation‐associated stroke. Registration URL: https://www.clinicaltrials.gov; Unique identifier: NCT01581502.
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spelling doaj.art-663f422f38aa464e923c30bb630c650e2022-12-22T03:49:08ZengWileyJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease2047-99802021-11-01102210.1161/JAHA.121.022242Transesophageal Echocardiography in Ischemic Stroke With Atrial FibrillationKanta Tanaka0Masatoshi Koga1Keon‐Joo Lee2Beom Joon Kim3Tadataka Mizoguchi4Eun Lyeong Park5Juneyoung Lee6Sohei Yoshimura7Jae‐Kwan Cha8Byung‐Chul Lee9Junpei Koge10Hee‐Joon Bae11Kazunori Toyoda12Department of Cerebrovascular Medicine National Cerebral and Cardiovascular Center Suita JapanDepartment of Cerebrovascular Medicine National Cerebral and Cardiovascular Center Suita JapanDepartment of Neurology Cerebrovascular Center Seoul National University Bundang Hospital Seongnam‐si South KoreaDepartment of Neurology Cerebrovascular Center Seoul National University Bundang Hospital Seongnam‐si South KoreaDepartment of Cerebrovascular Medicine National Cerebral and Cardiovascular Center Suita JapanDepartment of Biostatistics College of Medicine Korea University Seoul South KoreaDepartment of Biostatistics College of Medicine Korea University Seoul South KoreaDepartment of Cerebrovascular Medicine National Cerebral and Cardiovascular Center Suita JapanDepartment of Neurology Dong‐A University Hospital Busan KoreaDepartment of Neurology Hallym University Sacred Heart Hospital Anyang KoreaDepartment of Cerebrovascular Medicine National Cerebral and Cardiovascular Center Suita JapanDepartment of Neurology Cerebrovascular Center Seoul National University Bundang Hospital Seongnam‐si South KoreaDepartment of Cerebrovascular Medicine National Cerebral and Cardiovascular Center Suita JapanBackground To clarify differences in clinical significance of intracardiac thrombi in nonvalvular atrial fibrillation‐associated stroke as identified by transesophageal echocardiography (TEE) and transthoracic echocardiography (TTE). Methods and Results Using patient data on nonvalvular atrial fibrillation‐associated ischemic stroke between 2011 and 2014 from 15 South Korean stroke centers (n=4841) and 18 Japanese centers (n=1192), implementation rates of TEE/TTE, and detection rates of intracardiac thrombi at each center were correlated. The primary outcome was recurrent ischemic stroke at 1 year after the onset. A total of 5648 patients (median age, 75 years; 2650 women) were analyzed. Intracardiac thrombi were detected in 75 patients (1.3%) overall. Thrombi were detected in 7.8% of patients with TEE (either TEE alone or TEE+TTE: n=679) and in 0.6% of those with TTE alone (n=3572). Thrombus detection rates varied between 0% and 14.3% among centers. As TEE implementation rates at each center increased from 0% to 56.7%, thrombus detection rates increased linearly (detection rate [%]=0.11×TEE rate [%]+1.09 [linear regression], P<0.01). TTE implementation rates (32.3%–100%) were not associated with thrombus detection rates (P=0.53). Intracardiac thrombi were associated with risk of recurrent ischemic stroke overall (adjusted hazard ratio [aHR] 2.35, 95% CI, 1.07–5.16). Thrombus‐associated ischemic stroke risk was high in patients with TEE (aHR, 3.13; 95% CI, 1.17–8.35), but not in those with TTE alone (aHR, 0.89; 95% CI, 0.12–6.51). Conclusions Our data suggest clinical relevance of TEE for accurate detection and risk stratification of intracardiac thrombi in nonvalvular atrial fibrillation‐associated stroke. Registration URL: https://www.clinicaltrials.gov; Unique identifier: NCT01581502.https://www.ahajournals.org/doi/10.1161/JAHA.121.022242atrial fibrillationechocardiographystroke
spellingShingle Kanta Tanaka
Masatoshi Koga
Keon‐Joo Lee
Beom Joon Kim
Tadataka Mizoguchi
Eun Lyeong Park
Juneyoung Lee
Sohei Yoshimura
Jae‐Kwan Cha
Byung‐Chul Lee
Junpei Koge
Hee‐Joon Bae
Kazunori Toyoda
Transesophageal Echocardiography in Ischemic Stroke With Atrial Fibrillation
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
atrial fibrillation
echocardiography
stroke
title Transesophageal Echocardiography in Ischemic Stroke With Atrial Fibrillation
title_full Transesophageal Echocardiography in Ischemic Stroke With Atrial Fibrillation
title_fullStr Transesophageal Echocardiography in Ischemic Stroke With Atrial Fibrillation
title_full_unstemmed Transesophageal Echocardiography in Ischemic Stroke With Atrial Fibrillation
title_short Transesophageal Echocardiography in Ischemic Stroke With Atrial Fibrillation
title_sort transesophageal echocardiography in ischemic stroke with atrial fibrillation
topic atrial fibrillation
echocardiography
stroke
url https://www.ahajournals.org/doi/10.1161/JAHA.121.022242
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