Relations between left atrial appendage blood flow velocity, spontaneous echocardiographic contrast and thromboembolic risk in vivo

Objectives. The aim of this study was to determine the relations between spontaneous echo contrast, left atrial appendage blood flow velocity and thromboembolism. Background. Left atrial thrombus and spontaneous echo contrast, a putative marker of thromboembolic risk, are frequently located in the l...

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Bibliographic Details
Published in:Journal of the American College of Cardiology 1994-03, Vol.23 (4), p.961-969
Main Authors: Fatkin, Diane, Kelly, Raymond P., Feneley, Michael P.
Format: Article
Language:English
Subjects:
Adult
Aged
Aged, 80 and over
Atrial Fibrillation - complications
Atrial Fibrillation - diagnostic imaging
Atrial Fibrillation - physiopathology
Atrial Function, Left
Blood Flow Velocity
Echocardiography, Transesophageal
Female
Heart Atria - diagnostic imaging
Heart Atria - physiopathology
Heart Diseases - complications
Heart Diseases - diagnostic imaging
Heart Diseases - physiopathology
Humans
Logistic Models
Male
Middle Aged
Risk Factors
Thromboembolism - epidemiology
Thromboembolism - etiology
Thrombosis - complications
Thrombosis - diagnostic imaging
Thrombosis - physiopathology
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Summary:Objectives. The aim of this study was to determine the relations between spontaneous echo contrast, left atrial appendage blood flow velocity and thromboembolism. Background. Left atrial thrombus and spontaneous echo contrast, a putative marker of thromboembolic risk, are frequently located in the left atrial appendage. Measurement of left atrial appendage outflow Doppler velocity by transesophageal echocardiography is a recent technique for assessment of left atrial appendage function, which may be important in thrombus formation. Methods. Transthoracic and transesophageal echocardiographic studies were performed in 140 patients with atrial fibrillation (chronic in 80 patients, paroxysmal in 50 patients, first episode
ISSN:0735-1097
1558-3597
DOI:10.1016/0735-1097(94)90644-0