July 18, 2015European Heart Journal - Cardiovascular Imaging
Value of CMR in quantification of paravalvular aortic regurgitation after TAVI
Why the study?
Does CMR using phase-contrast velocity mapping accurately quantify paravalvular aortic regurgitation compared to TTE in patients after TAVI?
Population
30 patients who underwent transcatheter aortic valve implantation without CMR-contraindication
Comparison
Cardiac magnetic resonance using phase-contrast… vs Transthoracic echocardiography and Aortic…
Design
Cohort
Follow-up
5 days after TAVI
Authors
Discussion
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Member takes
Implication
CMR may complement TTE for PAR quantification post-TAVI; leaves open its routine clinical integration.
Structured PICO
Does CMR using phase-contrast velocity mapping accurately quantify paravalvular aortic regurgitation compared to TTE in patients after TAVI?
P
Population
30 patients who underwent transcatheter aortic valve implantation (TAVI) without CMR-contraindication (COREVALVE, n=10; EDWARDS SAPIEN XT, n=20)
I
Intervention
Cardiac magnetic resonance (CMR) using phase-contrast velocity mapping 5 days after TAVI
C
Comparator
Transthoracic echocardiography (TTE) and Aortic regurgitation (AR) index obtained during TAVI
O
Outcome
Paravalvular aortic regurgitation (PAR) severity assessed by regurgitant volume (RV) and regurgitant fraction (RF)surrogate
CMR is a reproducible and accurate method for quantifying paravalvular aortic regurgitation after TAVI, potentially correcting underestimations by TTE.
Cite This Study
Salaün et al. (2015) studied this question.