Document Detail

Left ventricular mass predicts left atrial appendage thrombus in persistent atrial fibrillation.
MedLine Citation:
PMID:  22833549     Owner:  NLM     Status:  Publisher    
AIMS: Atrial fibrillation (AF) can result in the development of left atrial appendage (LAA) thrombi. We sought to examine demographic and echocardiographic predictors of LAA thrombus in patients with persistent AF. METHODS AND RESULTS: One hundred and sixty-five patients in persistent AF (36 with LAA thrombus and 129 without thrombus) were studied. Demographic and cardiovascular risk factors were retrospectively examined. Transthoracic (TTE) and transoesophageal echocardiography (TOE) were performed to assess the size and function of the left ventricle (LV), left atrium (LA), LAA, and spontaneous echo contrast (SEC) in the LA and right atrium (RA). Univariate demographic predictors of LA thrombus included systolic blood pressure, ischaemic heart disease and congestive heart failure. Indexed LV mass and septal E' velocity on TTE and mean LAA emptying velocity and the presence of SEC in both the LA and RA on TOE were predictors of thrombus. In a multiple logistic regression analysis the only independent predictor of thrombus was indexed LV mass (P < 0.001). Receiver operator characteristic curve analysis also demonstrated that indexed LV mass had the highest area under the curve (AUC: 0.98). CONCLUSION: In the present study, increased LV mass was the strongest predictor of LAA thrombus in persistent AF. LA SEC and RA SEC were univariate predictors of LAA thrombus but did not add predictive value to a multivariate model including LV mass. This study highlights the importance of diagnosing and treating LV hypertrophy associated with persistent AF, which may reduce the risk of LAA thrombus and thrombo-embolic stroke.
Anita C Boyd; Tanya McKay; Siroos Nasibi; David A B Richards; Liza Thomas
Related Documents :
3365879 - Thallium-201 scintigraphy perfusion defect with dipyridamole in a patient with a myocar...
9139119 - Dipyridamole scintigraphy and intravascular ultrasound after successful coronary interv...
22233129 - Coronary vasoreactivity in subjects with thyroid autoimmunity and subclinical hypothyro...
8418269 - Human pathologic correlation with pet in ischemic and nonischemic cardiomyopathy.
8412609 - Magnetic resonance imaging of perfusion in the isolated rat heart using spin inversion ...
9138719 - Temporal impairment of microcirculatory perfusion following focal cerebral ischemia in ...
96149 - Echography of splenic infarct in a case of systemic lupus erythematosus.
8136399 - Transesophageal echocardiography as an intraoperative monitor.
2932919 - Hypertrophy and coronary and collateral vascularity in dogs with severe chronic anemia.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-24
Journal Detail:
Title:  European heart journal cardiovascular Imaging     Volume:  -     ISSN:  2047-2412     ISO Abbreviation:  Eur Heart J Cardiovasc Imaging     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101573788     Medline TA:  Eur Heart J Cardiovasc Imaging     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
University of New South Wales, Liverpool Hospital, Sydney, Australia.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Gene therapy/bone marrow transplantation in ADA-deficient mice: roles of enzyme-replacement therapy ...
Next Document:  Pocket-size hand-held cardiac ultrasound as an adjunct to clinical examination in the hands of medic...