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valve tissue mounted within a supporting stent frame. The valve is sewn into a fabric-covered sewing ring, facilitating secure attachment within the patient's aortic annulus during the implantation procedure. The design aims to closely mimic the natural function of the human aortic valve, allowing
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The
Hancock Aortic Tissue Valve is commonly used in patients requiring aortic valve replacement due to conditions such as aortic stenosis or aortic regurgitation. The choice between a mechanical or bioprosthetic valve depends on various factors, including the patient's age, lifestyle, and medical
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Prosthetic heart valves, including the
Hancock Aortic Tissue Valve, are not without drawbacks. Structural degradation is a risk, potentially necessitating reoperation. Studies have indicated the need for ongoing research and improvement in bioprosthetic valve technology to address such concerns
216:. During the procedure, the damaged or diseased native aortic valve is removed, and the prosthetic valve is sutured in its place. The secure attachment of the valve is crucial to ensure proper functionality and prevent complications such as leakage.
150:. In the late 1960s and early 1970s, Warren Hancock, an American engineer, collaborated with the medical community to develop a cutting-edge bioprosthetic heart valve. The valve was first introduced by the American company
405:
194:
Reduced
Anticoagulation Requirement: Unlike mechanical valves, bioprosthetic valves like the Hancock Aortic Tissue Valve may reduce the need for lifelong anticoagulation therapy in some patients.
237:
114:
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Hemodynamic
Performance: The valve's design allows for optimal blood flow, minimizing turbulence and pressure gradients, which is essential for maintaining cardiac function.
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Biocompatibility: The use of porcine tissue enhances the biocompatibility of the valve, reducing the risk of adverse reactions and promoting tissue integration.
154:. The design of the Hancock valve is based on the concept of xenografts, utilizing pig tissue due to its structural similarities to human heart valves.
115:
https://www.medtronic.com/us-en/healthcare-professionals/products/cardiovascular/heart-valves-surgical/hancock-ii-hancock-ii-ultra-bioprostheses.html
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Durability: The
Hancock valve is designed to withstand the rigors of the cardiovascular system, providing long-term durability and reliability.
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to replace a damaged or diseased aortic valve. It is a bioprosthetic valve, meaning it is constructed using biological tissues, specifically
138:(pig) valve tissue. This valve is widely utilized in the field of cardiovascular surgery to restore proper blood flow through the heart.
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355:"Mitral Valve Replacement With the Hancock Stabilized Glutaraldehyde Valve: Clinical and Laboratory Evaluation"
266:"Hancock II bioprosthesis for aortic valve replacement: the gold standard of bioprosthetic valves durability?"
606:"Cardiac rehabilitation for people with heart disease: an overview of Cochrane systematic reviews"
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Rizzoli, Giulio; Bottio, Tomaso; Thiene, Gaetano; Toscano, Giuseppe; Casarotto, Dino (July 2003).
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Dasi, Lakshmi P; Simon, Helene A; Sucosky, Philippe; Yoganathan, Ajit P (February 2009).
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Dasi, Lakshmi P; Simon, Helene A; Sucosky, Philippe; Yoganathan, Ajit P (February 2009).
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Buch, Wally S.; Pipkin, Robert D.; Hancock, Warren D.; Fogarty, Thomas J. (1975-11-01).
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420:"The Mosaic Mitral Valve Bioprosthesis: A Long-Term Clinical and Hemodynamic Follow-Up"
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403:, Hancock, Warren D., "Stent for heart valve", issued 1971-03-16
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316:"The fate of Hancock II porcine valve recipients 25 years after implant"
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Cohen, L. H.; Koster, J. K.; Mee, R. B.; Collins, J. J. (August 1979).
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David, Tirone E.; Armstrong, Susan; Maganti, Manjula (September 2010).
238:"Hancock II and Hancock II Ultra Bioprostheses - Surgical Heart Valves"
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The implantation of the
Hancock Aortic Tissue Valve typically involves
151:
88:
778:
Head, Stuart J.; Çelik, Mevlüt; Kappetein, A. Pieter (2017-07-21).
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Choudhary, Shiv Kumar; Talwar, Sachin; Airan, Balram (2016-04-28).
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for efficient blood flow and minimizing the risk of complications.
500:"Long-term durability of the Hancock II porcine bioprosthesis"
780:"Mechanical versus bioprosthetic aortic valve replacement"
720:"Choice of prosthetic heart valve in a developing country"
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146:The Hancock Aortic Tissue Valve was invented by
604:Anderson, Lindsey; Taylor, Rod S (2014-12-12).
314:Valfrè, Carlo; Ius, Paolo; et al. (2010).
162:The Hancock Aortic Tissue Valve is composed of
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663:"Fluid Mechanics of Artificial Heart Valves"
549:"Fluid Mechanics of Artificial Heart Valves"
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128:prosthetic heart valve
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359:Archives of Surgery
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835:2024-01-05
724:Heart Asia
429:2024-01-05
401:US3570014A
247:2024-01-05
220:References
180:Advantages
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