Semb B K, Aasen A, Woxholt G, Resch F, Refsum A M, Frøysaker T, Nitter-Hauge S, Stadsklev K, Lilleaasen P
Scand J Clin Lab Invest. 1979 Dec;39(8):731-6. doi: 10.3109/00365517909108164.
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.
本文报道了对最近研发的霍尔-卡斯特中心血流人工心脏瓣膜进行的首次体内血流动力学观察。在将霍尔-卡斯特人工瓣膜植入犬二尖瓣位置后的急性和慢性实验中，均对瓣膜功能进行了血流动力学评估。这些研究显示，跨瓣膜压力梯度较低，有效开口角度约为70度，且通过人工瓣膜的大、小开口的舒张期血流良好。在瓣膜打开和关闭过程中，圆盘呈现出缓慢的旋转运动。
