VitaFlow™ transcatheter valve system in the treatment of severe aortic stenosis: One‐year results of a multicenter study

Abstract

Objective: This study reports the 1-year clinical outcomes of the VitaFlow™ transcatheter aortic valve system in the treatment of severe aortic stenosis.

Comparison of Procedural and 1-Year Clinical Results of Transcatheter Aortic Valve Implantation Using Prostheses with Different Design of Support Frame

“…Venus-A is the first THV that has been certified for clinical use in China, which is designed with a long selfexpandable nitinol stent 10) . In our cohort, 19.0% of the patients who received Venus-A prosthesis required a new PPI, in accordance with the patients with an implanted CoreValve or VitaFlow 11) prosthesis of which support frame is similar to Venus-A. 10) It has been well demonstrated that the incidence of PPI was higher in TAVI patients using Medtronic CoreValve than those using Edwards SAPIEN.…”

“…We observed that the rate of PPI was significantly lower in patients who were treated with J-Valve (4.3%) than in those who were re-ported with Edwards SAPIEN 22,23) or Medtronic Core-Valve 24) or other THVs. 11,25,26) We speculated the reasons for the lower rate of PPI in patients using J-Valve as follows: (1) The connecting sutures between valve body and positioning element 7) can prevent deep positioning of the prosthesis within left ventricular outflow tract during THV In TAVI procedure, this is an effective way to avoid the complete AV block that may directly result from the compression caused by THV devices, 27) leading to a lower incidence of third-degree AV block. (2) The lesser radial force of support frame could reduce excessive compression on calcified aortic valve/annular, which may be FRAME DESIGN OF PROSTHESIS AFFECT TAVI RESULTS another contributing factor to this advantage of J-Valve.…”

“…Edwards SAPIEN 8) prosthetic valve has a similar configuration in the support frame with J-Valve, but it was made of cobalt-chromium alloy and released by balloon dilation. Besides, a long self-expandable nitinol frame was adopted by Medtronic CoreValve 9) or Venus-A 10) or Vi-taFlow 11) and others.…”

Effect of concomitant aortic regurgitation on early hypo‐attenuated leaflet thickening after transcatheter aortic valve replacement in patients with symptomatic severe aortic stenosis

“…Three self‐expanding transcatheter heart valves (THV), CoreValve, Venus A‐valve, 14 VitaFlow valve, 15 as well as Lotus valve were utilized during the study period in our center. A 29/31 mm CoreValve, 29/32 mm Venus A‐valve, 27 mm VitaFlow valve and 25/27 mm Lotus valve were regarded as the large THV sizes.…”

“…Three self-expanding transcatheter heart valves (THV), CoreValve, Venus A-valve, 14 VitaFlow valve, 15…”