Sections View Full Chapter Figures Tables Videos Annotate Full Chapter Figures Tables Videos Supplementary Content ++|PrintValveSizePeak Gradient (mm Hg)Mean Gradient (mm Hg)Peak Velocity (m/s)Pressure Half-Time (ms)Effective Orifice Area (cm2)Biocor2713 ± 1Stentless bioprosthesis2914 ± 2.53111.5 ± 0.53312 ± 0.5Bioflo pericardial2510 ± 26.3 ± 1.52 ± 0.1Stented bioprosthesis279.5 ± 2.65.4 ± 1.22 ± 0.3295 ± 2.83.6 ± 12.4 ± 0.2314.02.02.3Bjork-Shiley231.7115Tilting disc2512 ± 46 ±21.75 ± 0.3899 ± 271.72 ± 0.62710 ± 45 ±21.6 ± 0.4989 ± 281.81 ± 0.54297.83 ± 2.932.83 ± 1.271.37 ± 0.2579 ± 172.1 ± 0.43316 ± 32 ± 1.91.41 ± 0.2670 ± 142.2 ± 0.3Bjork-Shiley monostrut235.01.9Tilting disc2513 ± 2.55.57 ± 2.31.8 ± 0.32712 ± 2.54.53 ± 2.21.7 ± 0.42913 ± 34.26 ± 1.61.6 ± 0.33114 ± 4.54.9 ± 1.61.7 ± 0.3Carbomedics231.9 ± 0.1126 ± 7Bileaflet2510.3 ± 2.33.6 ± 0.61.3 ± 0.193 ± 82.9 ± 0.8278.79 ± 3.463.46 ± 1.031.61 ± 0.389 ± 202.9 ± 0.75298.78 ± 2.93.39 ± 0.971.52 ± 0.388 ± 172.3 ± 0.4318.87 ± 2.343.32 ± 0.871.61 ± 0.2992 ± 242.8 ± 1.14338.8 ± 2.24.8 ± 2.51.5 ± 0.293 ± 12Carpentier- Edwards276 ± 21.7 ± 0.398 ± 28Stented bioprosthesis294.7 ± 21.76 ± 0.2792 ±14314.4 ± 21.54 ± 0.1592 ± 19336 ± 393 ± 12Carpentier- Edwards pericardial273.61.6100Stented Bioprosthesis295.25 ± 2.361.67 ± 0.3110 ± 15314.05 ± 0.831.53 ± 0.190 ± 11331.00.880Duromedics2713 ± 65 ± 31.61 ± 0.475 ± 12Bileaflet2910 ± 43 ± 11.40 ± 0.2585 ± 223110.5 ± 4.333.3 ± 1.361.38 ± 0.2781 ± 123311.22.585Hancock I or not specified2710 ± 45 ± 21.3 ± 0.8Stented bioprosthesis297 ± 32.46 ± 0.79115 ± 201.5 ± 0.2314 ± 0.864.86 ± 1.6995 ± 171.6 ± 0.2333 ± 23.87 ± 290 ± 121.9 ± 0.2Hancock II272.21 ± 0.14Stented bioprosthesis292.77 ± 0.11312.84 ± 0.1333.15 ± 0.22Hancock pericardial292.61 ± 1.391.42 ± 0.14105 ± 36Stented bioprosthesis313.57 ± 1.021.51 ± 0.2781 ... Your Access profile is currently affiliated with '[InstitutionA]' and is in the process of switching affiliations to '[InstitutionB]'. Please click ‘Continue’ to continue the affiliation switch, otherwise click ‘Cancel’ to cancel signing in. Get Free Access Through Your Institution Learn how to see if your library subscribes to McGraw Hill Medical products. Subscribe: Institutional or Individual Sign In Username Error: Please enter User Name Password Error: Please enter Password Forgot Password? Forgot Username? Sign in via OpenAthens Sign in via Shibboleth