Tissue valves and conduits
Freestyle™ aortic root bioprosthesis
Tissue valves and conduits
Freestyle™ aortic root bioprosthesis
The Freestyle™ aortic root bioprosthesis emulates the native aortic valve, designed for hemodynamics and durability.
Description
Our most physiologic valve
Every aspect of the Freestyle™ bioprosthesis is meant to closely emulate the native aortic valve and offer comparable benefits. It is a great choice for many patients, including patients with challenging anatomy because it is a full root bioprosethesis. Additionally, Freestyle has shown excellent hemodynamics, durability, and patient outcomes.1,2
Features
Durability
Published clinical experience demonstrates impressive long-term performance in many age groups.1 Additional factors that may contribute to durability are:
- Proprietary AOA™ anti-calcification tissue treatment designed to reduce calcification and protect the tissue†
- Physiologic fixation process that reduces the stress applied to the leaflets during fixation
AOA™ anti-calcification tissue treatment
† No clinical data is available which evaluates the long-term impact of the physiologic fixation process or the impact of AOA™ treatment in patients.
Stentless design
By closely mimicking human physiology, the Freestyle™ valve offers excellent hemodynamics and long-term durability.
Excellent clinical performance
- Very low rates of SVD, including a rate of freedom from explant due to SVD‡ of 83% at 15 years1
- Single-digit gradients out to 10 years2
‡ Failure of any component of the bioprosthesis causing stenosis or insufficiency. Excluded is endocarditis and/or thrombosed bioprosthetic valve as cause of dysfunction.
Maximum blood flow
The Freestyle™ valve provides industry leading hemodynamic performance. Studies have shown Freestyle™, with it’s stentless design, has significantly better hemodynamic performance than stented or mechanical aortic surgical valves.3,4 Hemodynamic results with Freestyle™ have shown:
- Larger post-operative effective orifice areas (EOA) than stented or mechanical valves3
- Stable, single digit gradients and large EOAs at 10 years1
Advanced tissue fixation
Our exclusive physiologic fixation process mitigates biomechanical failures and is engineered for long-term valve durability by:
- Improving preservation of valve structure and leaflet function, allowing it to function like a native valve
- Allowing leaflets to remain soft and flexible, which protects the tissue from cyclic fatigue
- Leaflets float at net zero pressure
- Roots are pressured at 40 mmHg with glutaraldehyde
Surgical valve replacement risks may include infection, surgical complications, stroke, endocarditis, and death.
Ordering information
Related links
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- Freestyle™ aortic root bioprosthesis 15-year clinical compendium, UC201606746EN.
- Klautz RJM, Rao, V, Reardon MJ, et al. Examining the typical hemodynamic performance of nearly 3000 modern surgical aortic bioprostheses. Eur J Cardiothorac Surg. 2024 May 3;65(5):ezae 122.
- Perez de Arenaza D, Lees B, Flather M, et al. Randomized comparison of stentless versus stented valves for aortic stenosis: effects on left ventricular mass. Circulation. 2005;112(17):2696–2702.
- Silberman S, Shaheen J, Merin O, et al. Exercise hemodynamics of aortic prostheses: comparison between stentless bioprostheses and mechanical valves. Ann Thorac Surg. 2001;72(4):1217–1221.