Cardiovascular Medicine Book


Transesophageal Ultrasonography

Aka: Transesophageal Ultrasonography, Transesophageal Echocardiogram
  1. See Also
    1. Transthoracic Echocardiogram
    2. Parasternal Long-Axis Echocardiogram View ( PLAX View)
    3. Parasternal Short-Axis Echocardiogram View (PSAX View)
    4. Subcostal Echocardiogram View (Subxiphoid Echocardiogram View)
    5. Apical Four Chamber Echocardiogram View
    6. Suprasternal Echocardiogram View
    7. Echocardiogram in Congestive Heart Failure
    8. Inferior Vena Cava Ultrasound for Volume Status
    9. Emergency Pericardiocentesis
    10. Pericardial Effusion
    11. Stress Echocardiogram
  2. Indication
    1. Suspected Pulmonary Embolism
      1. Patients too unstable to undergo VQ Scan
    2. Aortic Dissection
      1. Aortic Dissection assessment (consider CT angiogram as alternative)
    3. Thoracic Aortic Aneurysm
  3. Accuracy
    1. Aortic Dissection
      1. Sensitivity: 97%
      2. Specificity: 75-90%
  4. Advantage
    1. Sensitive for hemodynamically significant emboli
    2. Less invasive
    3. Fast
    4. Widely available
  5. Disadvantage
    1. Misses small Pulmonary Emboli (only 13% sensitive)
    2. Requires Sedation and trained technician

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