Doctoral Degrees (Cardiothoracic Surgery)

The impact of extended harvesting times on tissue integrity of cryopreserved ovine pulmonary homograts

Bester, Dreyer (University of the Free State, 2017-02)

English: The use of aorta valve homografts in cardiac surgery was pioneered by Donald Ross and Barratt-Boyes (Ross, 1962; Barratt-Boyes, 1964) and today, pulmonary valve homografts remain the valved conduit of choice for ...
Hydrodynamic and coagulation characteristics of a re-engineered mechanical heart valve in an ovine model

Jordaan, Christiaan Johannes (University of the Free State, 2017-01)

Introduction A valve with haemodynamic properties mimicking a natural heart valve and having the durability that will exceed the life expectancy of the recipient patient without requiring lifelong anti-coagulation, would ...