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Archives of cardiovascular diseases
Volume 106, n° 1
pages 19-26 (janvier 2013)
Doi : 10.1016/j.acvd.2012.09.005
Received : 20 June 2012 ;  accepted : 26 September 2012
Impact of right ventricular outflow tract size and substrate on outcomes of percutaneous pulmonary valve implantation
Impact du diamètre et du type de conduits utilisés pour reconstruire la voie d’éjection droite dans les résultats de la valvulation pulmonaire percutanée
 

Figure 1




Figure 1 : 

Schematic representation of the study design. BMS: bare-metal stent; PPVI: percutaneous pulmonary valve insertion.


Figure 2




Figure 2 : 

Angiographic views showing a patient with a non-expandable conduit following insertion of a Melody® valve. A. Still frame without dye showing the Melody® valve securely fixed by the existence of a metallic ring around the right ventricular outflow tract conduit, limiting its expansion. B. Excellent function of the inserted valve: no leak on angiography. Note the space between the ring and the stent related to the fabric of the prosthetic conduit.


Figure 3




Figure 3 : 

Angiographic views showing a patient with a non-expandable conduit at various stages of a Melody® valve implantation. A. Angiographic view at the beginning of the procedure showing a stenotic extra-anatomic right ventricular outflow tract Gore-Tex conduit. B and C. Angiographic views showing the results after opening with multiple bare-metal stents and insertion of the Melody® valve. The expansion of the stents remains limited.


Figure 4




Figure 4 : 

Angiographic views showing a patient with an expandable conduit (homograft) at various stages of a ®Melody valve implantation. A. Angiographic view at the beginning of the procedure showing a stenotic homograft. B and C. Angiographic views showing the results after prestenting and insertion of the Melody® valve. The stents are fully expanded and valve function is excellent.

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