Atrial Cardiomyopathy: From Diagnosis to Treatment

With a better understanding of the susceptibility to atrial fibrillation (AF) and the thrombogenicity of the left atrium, the concept of atrial cardiomyopathy (ACM) has emerged. The conventional viewpoint holds that AF-associated hemodynamic disturbances and thrombus formation in the left atrial app...

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Main Authors: Zheyu Liu, Tao Liu, Gang Wu
Format: Article
Language:English
Published: IMR Press 2025-01-01
Series:Reviews in Cardiovascular Medicine
Subjects:
Online Access:https://www.imrpress.com/journal/RCM/26/1/10.31083/RCM25124
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author Zheyu Liu
Tao Liu
Gang Wu
author_facet Zheyu Liu
Tao Liu
Gang Wu
author_sort Zheyu Liu
collection DOAJ
description With a better understanding of the susceptibility to atrial fibrillation (AF) and the thrombogenicity of the left atrium, the concept of atrial cardiomyopathy (ACM) has emerged. The conventional viewpoint holds that AF-associated hemodynamic disturbances and thrombus formation in the left atrial appendage are the primary causes of cardiogenic embolism events. However, substantial evidence suggests that the relationship between cardiogenic embolism and AF is not so absolute, and that ACM may be an important, underestimated contributor to cardiogenic embolism events. Chronic inflammation, oxidative stress response, lipid accumulation, and fibrosis leading to ACM form the foundation for AF. Furthermore, persistent AF can exacerbate structural and electrical remodeling, as well as mechanical dysfunction of the atria, creating a vicious cycle. To date, the relationship between ACM, AF, and cardiogenic embolism remains unclear. Additionally, many clinicians still lack a comprehensive understanding of the concept of ACM. In this review, we first appraise the definition of ACM and subsequently summarize the noninvasive and feasible diagnostic techniques and criteria for clinical practice. These include imaging modalities such as echocardiography and cardiac magnetic resonance imaging, as well as electrocardiograms, serum biomarkers, and existing practical diagnostic criteria. Finally, we discuss management strategies for ACM, encompassing “upstream therapy” targeting risk factors, identifying and providing appropriate anticoagulation for patients at high risk of stroke/systemic embolism events, and controlling heart rhythm along with potential atrial substrate improvements.
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spelling doaj-art-5c10753f605a4568a551727d3a1966dc2025-01-25T10:41:19ZengIMR PressReviews in Cardiovascular Medicine1530-65502025-01-012612512410.31083/RCM25124S1530-6550(24)01570-9Atrial Cardiomyopathy: From Diagnosis to TreatmentZheyu Liu0Tao Liu1Gang Wu2Department of Cardiology, Renmin Hospital of Wuhan University, 430060 Wuhan, Hubei, ChinaDepartment of Cardiology, Renmin Hospital of Wuhan University, 430060 Wuhan, Hubei, ChinaDepartment of Cardiology, Renmin Hospital of Wuhan University, 430060 Wuhan, Hubei, ChinaWith a better understanding of the susceptibility to atrial fibrillation (AF) and the thrombogenicity of the left atrium, the concept of atrial cardiomyopathy (ACM) has emerged. The conventional viewpoint holds that AF-associated hemodynamic disturbances and thrombus formation in the left atrial appendage are the primary causes of cardiogenic embolism events. However, substantial evidence suggests that the relationship between cardiogenic embolism and AF is not so absolute, and that ACM may be an important, underestimated contributor to cardiogenic embolism events. Chronic inflammation, oxidative stress response, lipid accumulation, and fibrosis leading to ACM form the foundation for AF. Furthermore, persistent AF can exacerbate structural and electrical remodeling, as well as mechanical dysfunction of the atria, creating a vicious cycle. To date, the relationship between ACM, AF, and cardiogenic embolism remains unclear. Additionally, many clinicians still lack a comprehensive understanding of the concept of ACM. In this review, we first appraise the definition of ACM and subsequently summarize the noninvasive and feasible diagnostic techniques and criteria for clinical practice. These include imaging modalities such as echocardiography and cardiac magnetic resonance imaging, as well as electrocardiograms, serum biomarkers, and existing practical diagnostic criteria. Finally, we discuss management strategies for ACM, encompassing “upstream therapy” targeting risk factors, identifying and providing appropriate anticoagulation for patients at high risk of stroke/systemic embolism events, and controlling heart rhythm along with potential atrial substrate improvements.https://www.imrpress.com/journal/RCM/26/1/10.31083/RCM25124atrial cardiomyopathyatrial fibrillationatrial remodelingcardiogenic embolism
spellingShingle Zheyu Liu
Tao Liu
Gang Wu
Atrial Cardiomyopathy: From Diagnosis to Treatment
Reviews in Cardiovascular Medicine
atrial cardiomyopathy
atrial fibrillation
atrial remodeling
cardiogenic embolism
title Atrial Cardiomyopathy: From Diagnosis to Treatment
title_full Atrial Cardiomyopathy: From Diagnosis to Treatment
title_fullStr Atrial Cardiomyopathy: From Diagnosis to Treatment
title_full_unstemmed Atrial Cardiomyopathy: From Diagnosis to Treatment
title_short Atrial Cardiomyopathy: From Diagnosis to Treatment
title_sort atrial cardiomyopathy from diagnosis to treatment
topic atrial cardiomyopathy
atrial fibrillation
atrial remodeling
cardiogenic embolism
url https://www.imrpress.com/journal/RCM/26/1/10.31083/RCM25124
work_keys_str_mv AT zheyuliu atrialcardiomyopathyfromdiagnosistotreatment
AT taoliu atrialcardiomyopathyfromdiagnosistotreatment
AT gangwu atrialcardiomyopathyfromdiagnosistotreatment