Scope and Contents This film discusses abdominal aortic grafts in dogs; tricuspid mitral Teflon valves and thrombi; atrial patches and thrombi; atrioventricular patches and thrombi; atrioventricular window patches and thrombi; atrioventricular smooth polyurethane patches with Dacron chordae tendineae; selection of chordae tendineae material; construction of and insertion of Seidel's valve; and conclusions on how to avoid thrombosis on artificial valves. This film was made with V. Mirkovitch, M. D.; T. Akutu, M....