Alterations in atrial perfusion during atrial fibrillation
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Updated: Apr 26, 2026

Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation
Published on: July 20, 2022
Christina F Pacchia1, Derek J Dosdall2, Ravi Ranjan2
1Comprehensive Arrhythmia and Research Management Center, Division of Cardiology, Department of Radiology, University of Utah Health Sciences Center, Salt Lake City, UT, USA christina.pacchia@hsc.utah.edu.
Insights
Altered left atrial (LA) perfusion is linked to atrial fibrillation (AF) and structural changes. Further research is needed to understand the causal link and develop treatments for chronic AF.
Area of Science:
- Cardiology
- Physiology
Background:
- Left atrial (LA) perfusion is critical, with reduced blood flow potentially causing ischaemia and structural remodelling.
- This remodelling is implicated in the self-perpetuation of chronic atrial fibrillation (AF).
Purpose of the Study:
- To comprehensively discuss AF-mediated changes in LA perfusion.
- To explore potential mechanisms of altered coronary flow to the LA in AF.
- To discuss the clinical relevance of LA perfusion changes and highlight future research needs.
Main Methods:
- A comprehensive literature search of Medline, Embase, and Google Scholar databases (1960–February 2014).
- Systematic analysis of reference lists from physiological articles and reviews.
Main Results:
- The association between AF and altered LA perfusion has been studied.
- A direct causal link between perfusion changes and AF has not yet been established.
Conclusions:
- Understanding AF-mediated changes in LA perfusion is crucial for managing the condition.
- Longitudinal studies are needed to elucidate changes in LA perfusion from chronic AF.
- Further research may lead to advancements in effective treatments for AF progression.
Abstract:
Left atrial (LA) perfusion during disease states has been a topic of much interest, because the clinical implications and detrimental effects of lack of blood flow to the atria are numerous. In the chronic setting, changes in perfusion may lead to LA ischaemia and structural remodelling, a factor implicated in the self-perpetuation of chronic atrial fibrillation (AF). The association between AF and altered LA perfusion has been studied, but a direct causal association between perfusion changes and AF has not been established. A comprehensive literature search of Medline, Embase and Google Scholar databases was conducted from 1960 to February 2014. We systematically analysed reference lists of physiological articles and reviews for other possibly relevant studies. The aim of this review is to provide a comprehensive discussion of the AF-mediated changes in LA perfusion and the potential mechanisms underlying the alterations in coronary flow to the LA in this setting. In addition, we discuss the clinical contexts in which changes in LA perfusion may be relevant. Finally, this article highlights the need for longitudinal studies of AF that would elucidate the changes in LA perfusion resulting from chronic AF and lead to advancements in effective treatments to prevent progression of this disease.
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