caa a22 4500 397496052 CHVBK 20180308164521.0 cr unu---uuuuu 161202e199510 xx s 000 0 eng 10.1016/S1010-7940(05)80006-5 doi (NATIONALLICENCE)oxford-10.1016/S1010-7940(05)80006-5 Free-hand sewn allografts, stentless (Prima Edwards) and stented (CESA) porcine bioprostheses. A comparative hemodynamic study [Elektronische Daten] In a retrospective, non-randomized study, the clinical and hemodynamicproperties of 50 consecutively implanted hand-sewn allografts (group I), 50stentless bioprostheses (group II) and 50 stented bioprostheses (group III)were compared. Preoperative hemodynamic and clinical data were identical inthe three groups, except for age (group I: 54.4 +/- 8.7, group II: 67.0 +/-5.1, group III: 70.0 +/- 5.1). Peak and mean gradients and flowcharacteristics with echo Doppler were performed at 1 week, 6 and 12months. For the 21, 23 and 25 diameter prostheses, group differencesbetween groups II and III in peak and mean gradients were not significantafter 1 week and 1 year. In all groups, allografts had significantly lowergradients. Regurgitation (I-II) was present after 1 week and 1 year ingroup I: in 17/48 and 22/42 patients respectively, in group II 7/49 and11/44 patients and in group III: in 1/49 and 2/44 patients. Early mortalityand morbidity were comparable in all groups. Allografts have superiorhemodynamic properties. Differences in gradients in groups II and III werenot significant, though differences in technique allowed the implantationof a larger bioprostheses in group II. Regurgitation was most prominent inthe allograft group. Immediate postoperative results were not influenced bythe type of prosthesis. © Springer-Verlag European Journal of Cardio-Thoracic Surgery Elsevier Science B.V. 9/10(1995-10), 562-566 1010-7940 9:10<562 1995 9 ejcts https://doi.org/10.1016/S1010-7940(05)80006-5 text/html Onlinezugriff via DOI 1 abstract jats NATIONALLICENCE 856 40 https://doi.org/10.1016/S1010-7940(05)80006-5 text/html Onlinezugriff via DOI NATIONALLICENCE 773 0- European Journal of Cardio-Thoracic Surgery Elsevier Science B.V 9/10(1995-10), 562-566 1010-7940 9:10<562 1995 9 ejcts Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford