When are TEE and TTE contraindicated in the workup 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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Neither TEE nor TTE should be used for screening purposes (ie, patients with fever of unknown origin or those with positive blood culture results and no other signs or symptoms of IE), because nearly 60% of vegetations revealed are sterile. Approximately 15% of positive study results are false-positives because the images are, in reality, not those of vegetations but of thickened valves, nodules, or valvular calcifications.

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