In vivo haemodynamic evaluation of the Hall-Kaster central flow prosthetic heart valve.

Autor: Semb BK, Aasen A, Woxholt G, Resch F, Refsum AM, Frøysaker T, Nitter-Hauge S, Stadsklev K, Lilleaasen P
Jazyk: angličtina
Zdroj: Scandinavian journal of clinical and laboratory investigation [Scand J Clin Lab Invest] 1979 Dec; Vol. 39 (8), pp. 731-6.
DOI: 10.3109/00365517909108164
Abstrakt: The first in vivo haemodynamic observations of the recently developed Hall-Kaster central flow prosthetic heart valve are reported. Haemodynamic evaluation of valve function was performed both in acute and chronic experiments following implantation of the Hall-Kaster prosthesis in the mitral position in dogs. These studies showed a low transvalvular pressure gradient, an effective opening angle of about 70 degrees and good diastolic flow through both the large and small orifices of the prosthesis. A slow rotational movement was depicted by the disc during opening and closure.
Databáze: MEDLINE