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Valvular disease

The private life of tissue valves

Although the majority of implanted valves used in aortic valve surgery are tissue valves (bioprostheses), the mechanisms by which they interact with the host are not well understood. A new study by Flameng et al. gives insight into the structural and functional changes that result from patient–bioprosthesis mismatch.

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Figure 1: Three-dimensional phase-contrast magnetic resonance images across the aortic valve 10 years after autograft, homograft, or bioprosthetic (Medtronic Freestyle®, Medtronic Inc., Minneapolis, MN) aortic root replacement.

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Correspondence to Magdi H. Yacoub.

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Yacoub, M., El-Hamamsy, I. The private life of tissue valves. Nat Rev Cardiol 7, 424–426 (2010). https://doi.org/10.1038/nrcardio.2010.98

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