Unique characterization of complex endocarditic vegetations using 3D TOE

in Echo Research and Practice

Correspondence: Muhammad Khan, Email: Muhammad.Khan@uhcw.nhs.uk

A 31-year old male was admitted with suspected infective endocarditis given intravenous drug use, lung and cerebral abscesses and Staphyloccus aureus bacteraemia. TTE imaging was limited given supine positioning and mechanical ventilation but suggested a posterior mitral valve leaflet (PMVL) mass. Three-dimensional TOE provided uniquely detailed assessment of two complex infective masses. The attachment of the presumed P2 mass on TTE was indeterminant even on 2D-TOE, appearing attached to the PMVL or AMVL depending on rotational view. 3D-TOE imaging and subsequent multiplanar and volumerendered reconstruction revealed this to be a complex, large vegetation attached to the anterior aspect of the anterolateral commissure with mobile heads prolapsing into the left atrium and causing mild mitral regurgitation through a small basal perforation. The second mass was a filamentous vegetation attached to the LVOT, prolapsing towards but not contacting the aortic valve.Comprehensive assessment of complex vegetations is crucial for optimal surgical planning. 3D-TOE allows rapid, accurate, unique assessment of such masses through unlimited multiplanar reconstructions, volume rendered real-time imaging and colour full-volume regurgitation assessment which may not always possible on 2D-TTE or 2D-TOE. 3D imaging should be routinely used in TOE and in particular in suspected endocarditis.

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    British Society of Echocardiography

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