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Archives of cardiovascular diseases
Vol 101, N° 2  - février 2008
pp. 126-132
Doi : ACVD-02-2008-101-2-1875-2136-101019-200802442
Transcatheter aortic valve implantation: technical aspects, results and indications
Implantation de valves aortiques par voie percutanée : aspects techniques, résultats et indications
Figure 1

he Cribier-Edwards Bioprosthesis. From top to bottom and left to right: 1. Side and upper view of the stented valve; 2. the bioprosthesis in position at mid-part of the balloon before crimping; 3. the crimping phase; 4. a view of the crimped valve over the balloon
Figure 2

The Retro-Flex catheter. Its distal end can be deflected to help advancing the delivery system within the tortuous arterial access and to centralize the guide wire at the time of native valve crossing.
Figure 3

Effect of rapid pacing (200 beats/min) on aortic blood pressure at the time of balloon inflation for valve delivery.
Figure 4

Three phases of PHV implantation using the retrograde approach. A. the PHV has been advanced over a wire entering the femoral artery and is positioned at the level of the native valve’s calcifications. B. The PHV is delivered by balloon inflation under rapid pacing. C. A supra-aortic angiogram is performed after PHV delivery to assess the degree of paravalvular leak (no regurgitation in this case).
Figure 5

Transvalvular gradient at baseline (left) and after (right) PHV implantation. The lack of gradient after PHV implantation is observed in each case.

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