Key result
Complete supraannular placement of the bovine Magna prosthesis resulted in lower mean pressure gradients (11.82 vs 16.04 mm Hg) compared to the Mosaic prosthesis in small annuli at 6 months.
Why the study?
Does the choice of bioprosthesis affect hemodynamics and patient-prosthesis mismatch in patients undergoing complete supraannular aortic valve replacement?
Observational (n=336)
Does the choice of bioprosthesis affect hemodynamics and patient-prosthesis mismatch in patients undergoing complete supraannular aortic valve replacement?
Complete supraannular placement of aortic bioprostheses does not entirely prevent high pressure gradients or patient-prosthesis mismatch, but bovine prostheses like the Magna may offer superior hemodynamic performance.
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Magna may be considered over Mosaic for lower gradients in small annuli; leaves open effects on mismatch and clinical outcomes.
Ruzicka et al. (2009) conducted an observational in Aortic valve replacement (n=336). Supraannular bioprostheses (Magna, Mosaic, Ultra, Epic, Soprano) vs. Compared against each other was evaluated on Hemodynamics including mean pressure gradients, effective orifice areas, and incidence of patient-prosthesis mismatch. Complete supraannular placement of the bovine Magna prosthesis resulted in lower mean pressure gradients (11.82 vs 16.04 mm Hg) compared to the Mosaic prosthesis in small annuli at 6 months.
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