Key result
Parasternal short-axis echocardiographic assessment of paravalvular leakage after CoreValve transcatheter aortic valve implantation is limited by a 14% false negative rate.
Observational (n=554)
No
Transthoracic echocardiographic short-axis analysis of paravalvular leakage after TAVI has significant limitations, including a 14% false-negative rate, which can lead to misestimation of PVL severity.
Short-axis echo may miss paravalvular leakage after CoreValve TAVI; leaves open need for validated multimodal grading.
To make assessment of paravalvular aortic leakage (PVL) after transcatheter aortic valve implantation (TAVI) more uniform the second Valve Academic Research Consortium (VARC) recently updated the echocardiographic criteria for mild, moderate and severe PVL. In the VARC recommendation the assessment of the circumferential extent of PVL in the short-axis view is considered critical. In this paper we will discuss our observational data on the limitations and difficulties of this particular view, that may potentially result in overestimation or underestimation of PVL severity.
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Geleijnse et al. (2015) conducted an observational in Severe aortic stenosis post-TAVI (n=554). CoreValve Revalving System (TAVI) was evaluated on False negative parasternal short-axis imaging for paravalvular leakage. Parasternal short-axis echocardiographic assessment of paravalvular leakage after CoreValve transcatheter aortic valve implantation is limited by a 14% false negative rate.
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