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 select how you would like to proceed. Keep the current affiliation with [InstitutionA] and continue with the Access profile sign in process Switch affiliation to [InstitutionB] and continue with the Access profile sign in process 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 Error: Incorrect UserName or Password Username Error: Please enter User Name Password Error: Please enter Password Sign in Forgot Password? Forgot Username? Sign in via OpenAthens Sign in via Shibboleth You already have access! Please proceed to your institution's subscription. Create a free profile for additional features.