Stented Pericardial Valves
This valve, made of bovine pericardium has excellent hemodynamics and durability. It reportedly compares favourably with the stentless valves.23,27
Jamieson et al. report a freedom from valve-related mortality of 84.9% ± 1.7% in 1,430 patients during a 15-year study period. Roselli et al. report a structural deterioration rate of 74% after a 19-year follow-up period and cite calcification as the most common reason for valve failure.
Stentless valves have larger effective orifice areas than stented ones primarily due to the absence of the stent and sewing cuff. This larger effective orifice allows more room for blood flow.
Geriatrics and Aging. 2006;9(10):691-696. © 2006 1453987 Ontario, Ltd.
Cite this: Prosthetic Heart Valves, Part I: Identification and Potential Complications - Medscape - Jan 11, 2006.