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Updated: Jul 15, 2026

Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure
Published on: February 8, 2022
[Echocardiography in stroke patients (with emphasis on cryptogenic stroke)]
1Division of Cardiology, Department of Medicine, Columbia University.
Echocardiography effectively identifies cardioembolic stroke sources, aiding risk stratification and patient management. Transesophageal echocardiography (TEE) is more sensitive than transthoracic echocardiography (TTE) for most cardiac sources.
Area of Science:
- Cardiology
- Neurology
- Medical Imaging
Context:
- Cardioembolic stroke is a significant cause of ischemic stroke.
- Identifying cardiac sources is crucial for appropriate management and secondary prevention.
- Echocardiography is a primary imaging modality for cardiac evaluation.
Purpose:
- To review the utility of echocardiography in identifying cardioembolic sources of stroke.
- To highlight the roles of transthoracic echocardiography (TTE) and transesophageal echocardiography (TEE) in stroke evaluation.
- To emphasize the importance of low threshold for echocardiographic assessment in suspected cardioembolic events.
Summary:
- Echocardiography is vital for detecting potential cardioembolic sources in patients with suspected stroke.
- Transesophageal echocardiography (TEE) demonstrates higher sensitivity and specificity than transthoracic echocardiography (TTE) for most cardiac sources, except mural thrombus where TTE excels.
- Appropriate use of echocardiography aids in risk stratification, management, and treatment of cardioembolic stroke.
Impact:
- Improved diagnostic accuracy for cardioembolic stroke.
- Enhanced risk stratification enabling tailored treatment strategies.
- Potential reduction in stroke recurrence through effective identification and management of cardiac sources.
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