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Age-Dependent Prevalence of Cardioembolic Sources Detected by TEE: Diagnostic and Therapeutic Implications.
MedLine Citation:
PMID:  11174998     Owner:  NLM     Status:  Publisher    
To define the prevalence of cardioembolic sources found by transesophageal echocardiography (TEE) in different age groups of patients with and without cryptogenic systemic embolism, TEE risk factors for cardiogenic embolism were identified from 341 consecutive patients referred for TEE. One hundred and thirty-five had cryptogenic cerebral or systemic peripheral embolic events (CEE) and 206 other indications for TEE (CTR). Cardioembolic sources were found in 40% of CEE and in 29% of CTR (P < 0.02). Specifically, left atrial (LA) thrombi (P < 0.0001), atrial septal aneurysm with right-to-left shunt (P < 0.002), and atherosclerotic aortic plaques (P < 0.02) were more frequent. The prevalence of potential cardioembolic sources was significantly higher in patients >/= 70-years old than in younger patients (P < 0.03), specifically LA thrombi (P < 0.004) and atherosclerotic aortic plaques (P < 0.0001). In patients >/= 70-years old, potential cardioembolic sources were found in 63% and in 40% in CEE and CTR (P = 0.073), respectively. However, LA thrombi were more frequent in CEE (P < 0.003). Thus, potential cardioembolic sources observed by TEE are found more frequently in patients >/= 70-years old than in younger patients. LA thrombi were more frequent in CEE than in CTR patients >/= 70-years old. In patients >/= 70-years old with CEE who are eligible for an anticoagulant regimen, a search for potential cardioembolic sources by TEE should be considered.
Peter T. Buser; Michel Zuber; Peter Rickenbacher; Paul Erne; Hans-Rudolf Jenzer; Dieter Burckhardt
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Publication Detail:
Journal Detail:
Title:  Echocardiography (Mount Kisco, N.Y.)     Volume:  14     ISSN:  1540-8175     ISO Abbreviation:  Echocardiography     Publication Date:  1997 Nov 
Date Detail:
Created Date:  2001-Feb-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8511187     Medline TA:  Echocardiography     Country:  -    
Other Details:
Languages:  ENG     Pagination:  597-606     Citation Subset:  -    
Division of Cardiology, Department of Internal Medicine, University Hospital, Petersgraben 4, CH-4031 Basel, Switzerland.
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