Clinical significance of aortic spontaneous echo contrast in patients with nonvalvular atrial fibrillation

Background Little is known about spontaneous echo contrast (SEC) in the descending aorta (DASEC), occurring with or without SEC in the left atrium (LASEC), in the presence of atrial fibrillation (AF). We examined the clinical significance of DASEC, including its relationship with LASEC, in patients...

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Bibliographic Details
Published in:Echocardiography (Mount Kisco, N.Y.) N.Y.), 2024-01, Vol.41 (1), p.e15752-n/a
Main Authors: Hasegawa, Hitomi, Ito, Takahide, Akamatsu, Kanako, Hoshiga, Masaaki
Format: Article
Language:English
Subjects:
Aged
aortic plaque
Atrial Appendage - diagnostic imaging
atrial fibrillation
Atrial Fibrillation - complications
Atrial Fibrillation - diagnostic imaging
Atrial Fibrillation - epidemiology
Clinical Relevance
Echocardiography, Transesophageal
Female
Humans
Risk Factors
spontaneous echo contrast
Stroke Volume
transesophageal echocardiography
Ventricular Function, Left
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Summary:Background Little is known about spontaneous echo contrast (SEC) in the descending aorta (DASEC), occurring with or without SEC in the left atrium (LASEC), in the presence of atrial fibrillation (AF). We examined the clinical significance of DASEC, including its relationship with LASEC, in patients with nonvalvular AF. Methods Among 176 patients, 41 (23%) had DASEC and 51 (29%) had LASEC. The patients were divided into four groups based on the presence/absence of LASEC and DASEC, as Group A: no SEC (n = 107); Group B: only LASEC (n = 28); Group C: only DASEC (n = 18); and Group D: both types of SEC (n = 23). Clinical and echocardiographic parameters were compared between groups, and the possible determinants of DASEC were evaluated. Results Age, sex, and CHA2DS2‐VASc score were similar in the four groups. Group D was more likely to have an increased LA diameter, decreased left ventricular ejection fraction (LVEF), and low LA appendage velocity compared to Group A. Group C had a smaller LA diameter and a higher appendage velocity than Group B. Multivariate logistic regression analysis, with age ≥75 years, female sex, LASEC, LVEF 
ISSN:0742-2822
1540-8175
DOI:10.1111/echo.15752