Abstract
This study compared the diagnostic efficacy of transthoracic echocardiography (TTE)
and transesophageal echocardiography (TEE) for patients with stroke. Examination with
TTE was followed by TEE. Stroke causes were classified according to the Trial of Org
10172 in Acute Stroke Treatment (TOAST) and Causative Classification of Stroke (CCS)
criteria before and after TEE to determined, cryptogenic or unclassified groups. We
identified that 55.1% of patients had a determined etiology for stroke with TTE; adding
TEE to the examinations increased the proportion of patients with determined stroke
etiology to 69.4% (κ= 0.79). TTE alone showed fair agreement with the combined results of TTE and TEE in
determining the cause of stroke in young adults (κ = 0.38). TEE improved the detection of cardio-aortic sources, but had no impact on patients
who had a determined cause for stroke with other examinations. TEE examination was
most useful in young adults with stroke and in patients with an undetermined cause
for stroke despite TTE examination and other standard investigations.
Keywords
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Article info
Publication history
Accepted:
February 8,
2011
Received:
May 19,
2010
Identification
Copyright
© 2011 Elsevier Ltd. Published by Elsevier Inc. All rights reserved.
