Primary echocardiographic results of the Carpentier–Edwards Perimount Magna

Mizoguchi, Hideaki; Sakaki, Masayuki; Inoue, Kazushige; Kobayashi, Yasuhiko; Iwata, Takashi; Suehiro, Yasuo; Miura, Takuya

doi:10.1007/s10396-012-0347-x

Cited by 2 publications

(1 citation statement)

References 19 publications

(24 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The PERIMOUNT Magna Ease which is a further development of the PERIMOUNT Magna bioprosthesis belongs to the latest generation of aortic valve prostheses. Coming with several enhancements like especially improved hemodynamic performance, it led to a reduction in the incidence of patient-prosthesis mismatch [ 8 – 11 ].…”

Section: Introductionmentioning

confidence: 99%

The Fluid Dynamical Performance of the Carpentier-Edwards PERIMOUNT Magna Ease Prosthesis

Marx

Kowalczyk

Demircioğlu

et al. 2018

BioMed Research International

View full text Add to dashboard Cite

The aim of the present in vitro study was the evaluation of the fluid dynamical performance of the Carpentier-Edwards PERIMOUNT Magna Ease depending on the prosthetic size (21, 23, and 25 mm) and the cardiac output (3.6–6.4 L/min). A self-constructed flow channel in combination with particle image velocimetry (PIV) enabled precise results with high reproducibility, focus on maximal and local peek velocities, strain, and velocity gradients. These flow parameters allow insights into the generation of forces that act on blood cells and the aortic wall. The results showed that the 21 and 23 mm valves have a quite similar performance. Maximal velocities were 3.03 ± 0.1 and 2.87 ± 0.13 m/s; maximal strain Exx, 913.81 ± 173.25 and 896.15 ± 88.16 1/s; maximal velocity gradient Eyx, 1203.14 ± 221.84 1/s and 1200.81 ± 61.83 1/s. The 25 mm size revealed significantly lower values: maximal velocity, 2.47 ± 0.15 m/s; maximal strain Exx, 592.98 ± 155.80 1/s; maximal velocity gradient Eyx, 823.71 ± 38.64 1/s. In summary, the 25 mm Magna Ease was able to create a wider, more homogenous flow with lower peak velocities especially for higher flow rates. Despite the wider flow, the velocity values close to the aortic walls did not exceed the level of the smaller valves.

show abstract

Section: Introductionmentioning

confidence: 99%