Podcast
Questions and Answers
What is the preferred orientation of monoleaflet valves in the aortic position?
What is the preferred orientation of monoleaflet valves in the aortic position?
What type of flow pattern is characterized by bileaflet mechanical valves?
What type of flow pattern is characterized by bileaflet mechanical valves?
What is the range of the opening angle of the leaflets of bileaflet valves relative to the annulus plane?
What is the range of the opening angle of the leaflets of bileaflet valves relative to the annulus plane?
Which type of valve shows a small amount of normal regurgitation with an approximate volume of 5-9 mL per beat?
Which type of valve shows a small amount of normal regurgitation with an approximate volume of 5-9 mL per beat?
Signup and view all the answers
What is suggested as an optimal orientation for bileaflet valves in the mitral position?
What is suggested as an optimal orientation for bileaflet valves in the mitral position?
Signup and view all the answers
Which type of bileaflet valve does not show a clear advantage in specific leaflet orientation when implanted in the aortic position?
Which type of bileaflet valve does not show a clear advantage in specific leaflet orientation when implanted in the aortic position?
Signup and view all the answers
What is the main mechanism responsible for the thrombogenicity of the Starr-Edwards 1260 valve?
What is the main mechanism responsible for the thrombogenicity of the Starr-Edwards 1260 valve?
Signup and view all the answers
Which component of the Starr-Edwards 1260 valve is primarily visualized on colorflow Doppler imaging?
Which component of the Starr-Edwards 1260 valve is primarily visualized on colorflow Doppler imaging?
Signup and view all the answers
What is the purpose of lateral or central metal struts in monoleaflet or tilting-disk valves?
What is the purpose of lateral or central metal struts in monoleaflet or tilting-disk valves?
Signup and view all the answers
What results from the opening angle of the disk relative to the valve annulus being between 60 to 80 degrees in monoleaflet or tilting-disk valves?
What results from the opening angle of the disk relative to the valve annulus being between 60 to 80 degrees in monoleaflet or tilting-disk valves?
Signup and view all the answers
What distinguishes the flow through the major orifice from that through the minor orifice in monoleaflet or tilting-disk valves?
What distinguishes the flow through the major orifice from that through the minor orifice in monoleaflet or tilting-disk valves?
Signup and view all the answers
Why is the Starr-Edwards 1260 valve no longer implanted despite its relatively good durability?
Why is the Starr-Edwards 1260 valve no longer implanted despite its relatively good durability?
Signup and view all the answers