Source / episode info
- **Episode:**490
- **Title:**Divine Intervention Episode 490: The Clutch TEE Podcast
- **Published:**2023-11-24
- Source:Episode page
One-liner
This episode provides a comprehensive review of Transesophageal Echocardiography (TEE), detailing its indications for evaluating cardioembolic sources of stroke (e.g., AFib/LAA thrombus), assessing aortic dissection stability, diagnosing infective endocarditis, and identifying structural heart defects like PFOs.
High-yield summary
- TEE vs TTE: TEE provides superior visualization by placing the probe in the esophagus, which is anatomically posterior to the left atrium, offering better sensitivity/specificity for cardiac structures (e.g., LAA thrombus).
- Cardioembolic Stroke Workup: If a patient has an embolic stroke (especially with AFib or recent MI), TEE must be performed to evaluate for thrombus formation within the Left Atrial Appendage (LAA) before cardioversion.
- Aortic Dissection Imaging: The choice of imaging depends on hemodynamic stability: Stable patients undergo TEE; Unstable patients require immediate CT-chest angiogram with contrast.
- PFO/ASD/VSD Embolism: A Patent Foramen Ovale (PFO) or other septal defect allows right-to-left shunting, enabling systemic emboli to bypass the lungs and cause cryptogenic stroke (e.g., MCA territory).
- Infective Endocarditis (IE): TEE is indicated for IE after initial blood cultures have been drawn and antibiotics have been initiated, helping assess valve damage and vegetation extent.
Learning objectives
- Differentiate the indications and utility of Transesophageal Echocardiography (TEE) compared to Transthoracic Echocardiography (TTE).
- Apply knowledge of cardiac anatomy to predict the source of systemic emboli from atrial septal defects or PFOs.
- Determine appropriate imaging modalities for acute aortic dissection based on patient hemodynamic stability.
- Outline the necessary workup sequence for suspected infective endocarditis, including timing of TEE relative to antibiotics and cultures.
- Recognize the clinical signs and diagnostic steps required when evaluating a patient with cardioembolic stroke risk (e.g., AFib).
Board exam buzzwords