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Related Concept Videos

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Echocardiography plays a role in assessing cardiac health and detecting heart conditions, with various types providing critical insights for diagnosis and treatment.
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Left heart catheterization is an invasive diagnostic procedure used to evaluate the function and structure of the left side of the heart. It is generally performed to diagnose and treat cardiovascular conditions such as valve abnormalities, coronary artery disease, and congenital heart defects.Diagnostic and therapeutic purposesLeft heart catheterization serves various diagnostic and therapeutic purposes, including:Assessing coronary artery bypass grafts.Evaluating coronary artery disease in...
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Related Experiment Video

Updated: Mar 10, 2026

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
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Techniques To Improve Left Atrial Appendage Imaging.

Sahar S Abdelmoneim1, Sharon L Mulvagh2

  • 1Mayo Clinic Cardiovascular Ultrasound Imaging and Hemodynamic Laboratory, Division of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota, United States; Division of Cardiovascular Medicine, Assiut University, Assiut, Egypt.

Journal of Atrial Fibrillation
|December 14, 2016
PubMed
Summary
This summary is machine-generated.

Assessing the left atrial appendage (LAA) is crucial for patients with atrial fibrillation (AF). Advanced imaging techniques, including ultrasound contrast agents, improve LAA evaluation for stroke risk and treatment decisions.

Keywords:
Contrast-Enhanced Pulsed DopplerLeft Atrial AppendageLeft Atrial Appendage ThrombusTransesophageal EchocardiographyUltrasound Contrast Agents

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Area of Science:

  • Cardiology
  • Medical Imaging

Background:

  • The left atrial appendage (LAA) plays a critical role in cardiac function, particularly in patients with atrial fibrillation (AF).
  • AF is a common arrhythmia strongly associated with LAA thrombus formation, a significant risk factor for stroke.
  • Accurate assessment of LAA anatomy and function is vital for managing AF patients.

Approach:

  • Transesophageal echocardiography (TEE) is a primary imaging modality for excluding LAA thrombus before cardioversion.
  • Ultrasound contrast agents (UCAs), typically used with transthoracic echocardiography, can enhance TEE visualization of the LAA.
  • Multimodality imaging integrates various techniques for comprehensive LAA evaluation.

Key Points:

  • TEE is essential for pre-cardioversion LAA thrombus assessment in AF.
  • UCAs can augment TEE for improved LAA visualization and functional assessment.
  • Integrative imaging approaches are valuable for stroke risk stratification and guiding AF management.

Conclusions:

  • Comprehensive LAA assessment using advanced imaging is critical for optimizing AF patient care.
  • Imaging modalities, including TEE with UCAs, aid in decision-making for cardioversion and LAA interventions.
  • Non-invasive visualization techniques are key to understanding LAA's role in AF-related complications.