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Advanced age, low left atrial appendage velocity, and factor V promoter sequence variation as predictors of left atrial thrombosis in patients with nonvalvular atrial fibrillation.

https://arctichealth.org/en/permalink/ahliterature146014
Source
J Thromb Thrombolysis. 2010 Aug;30(2):192-9
Publication Type
Article
Date
Aug-2010
Author
Dmitry A Zateyshchikov
Alexey N Brovkin
Dimitry A Chistiakov
Valery V Nosikov
Author Affiliation
Scientific-Educational Medical Center of the Department of General Management of Russian President, Moscow, Russia.
Source
J Thromb Thrombolysis. 2010 Aug;30(2):192-9
Date
Aug-2010
Language
English
Publication Type
Article
Keywords
Age Factors
Aged
Atrial Appendage - physiopathology - ultrasonography
Atrial Fibrillation - complications - physiopathology - ultrasonography
Atrial Function, Left
Chi-Square Distribution
Cross-Sectional Studies
Echocardiography, Transesophageal
Factor V - genetics
Female
Genetic Predisposition to Disease
Humans
Logistic Models
Male
Middle Aged
Odds Ratio
Polymerase Chain Reaction
Polymorphism, Genetic
Polymorphism, Restriction Fragment Length
Promoter Regions, Genetic
Risk assessment
Risk factors
Russia
Stroke Volume
Thrombosis - etiology - genetics - physiopathology
Ventricular Function, Left
Abstract
Atrial fibrillation (AF) renders individual patients at risk for development of an atrial thrombus. The aim of this study was to determine clinical and echocardiographic factors influencing the risk of left atrial thrombosis (LAT) in patients with persistent nonvalvular AF. Genetic variants encoding haemostatic factors have been also assessed for putative association with LAT. In the cross-sectional study, a total of 212 patients (132 males and 80 females) with nonvalvular persistent AF (duration range 48 h-90 days) have been selected. LAT was visualized by transesophageal echocardiography. The FGB G(-455)A, PAI-1 4G/5G, F5 C(-224)T, and F5 R506Q genetic markers were tested using the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) approach. To reveal independent factors contributing to the thromboembolic risk in AF, a multivariate logistic model was applied. LA thrombi were found in 44 out of 212 subjects (21%). LAT was more frequently observed in patients at age >75 years (P 75 years, LVEF
PubMed ID
20082208 View in PubMed
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