What are the indications for each echocardiography technique in the diagnosis of infective endocarditis (IE)?

Updated: Jan 03, 2019
  • Author: John L Brusch, MD, FACP; Chief Editor: Michael Stuart Bronze, MD  more...
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Answer

In summary, the indications for performing echocardiography with Doppler in patients with IE are to provide a baseline in proven or highly suggestive cases of IE and to provide a means of documenting complications during therapy.

In most cases, TTE is sufficient. TEE is indicated when mechanical prosthetic valves are present; to detect right-sided lesions; and to visualize myocardial abscesses. Because of the endoscopic portion of the test, TEE carries the risk factor of inducing bacteremias. Approximately 15% of cases of IE do not demonstrate any detectable vegetations at the time of the echocardiographic study.


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