Types of mechanical aortic valves
[DOC File]Cardiovascular system
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2.2.1 Types of pumps 20. 2.2.2 Cam and Piston 21. 2.3 Methods of Waveform Analysis 22. 2.3.1 FFT 22. ... A piston pump has a piston reciprocating within cylinder and operating port valves which draws fluid in and out of the chamber. The flexible member pump has a flexible member pumping and sealing the fluid. ... Design of a Mechanical Model ...
[DOC File]Design of a Mechanical Model for Pulsatile Aortic Flow
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2 types- mechanical and bioprosthetic. Mechanical- 3 types- leaflet used most often; more durable and rarely require replacement. Disadvantage is that they are noisy and require lifelong anticoagulation with coumadin . If less than 70 years old the patient should be offered mechanical valve replacement
[DOC File]1- Functional anatomy and mechanical properties of heart
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These valves open during ventricular diastole to allow blood to fill the ventricles and close during ventricular systole. Other two valves are called . semilunar valves (aortic and pulmonary valves). These valves open during systole to allow eject blood from the ventricles into the aorta or pulmonary artery and close during diastole. See figure 1.
[DOC File]Your Guide to heart valve surgery
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The aortic and pulmonary valves each consist of three semilunar cusps that resemble pockets projecting into the lumen of aorta and pulmonary trunk. They contain no papillary muscle. During diastole the cusps of these valves become closely approximated to prevent regurgitation of blood from aorta and pulmonary arteries into the ventricles.
[DOC File]Aortic Valve Replacement
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Bileaflet mechanical aortic valves with AF ( 3.0 (2.5-3.5) or 2.5 (2.0-3.0) and aspirin 81 mg qd Caged ball or caged disk in any position ( 3.0 (2.5-3.5) and aspirin 81 mg qd Mechanical valve plus other risk factors or systemic embolism( 3.0 (2.5-3.5) and aspirin 81 mg qd
[DOC File]1- Functional anatomy and mechanical properties of heart
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Aortic valves that are stenotic need to be replaced. Regurgitation or insufficiency: The valve may not close completely causing blood to leak backwards. Aortic valves that are regurgitant usually need to be replaced. Mitral and tricuspid valves that are regurgitant may be repairable, often using a ring or a band.
Aortic valve stenosis - Symptoms and causes - Mayo Clinic
Mechanical aortic valves have an estimated average rate of major thromboembolism of 4 to 8 per 100 patient-years in patients not receiving long-term anticoagulation therapy (145). This risk is reduced to 2.2 per 100 patient-years with anti-platelet therapy, and further reduced to 1 per 100 patient-years with oral anticoagulation (warfarin).
[DOC File]Cardiac Surgery
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The Aortic Semilunar Valve (in between the Left Ventricle and the Aorta). ... the heart, such as rheumatic fever or endocarditis, or from having a heart attack (myocardial infarction). The two main types of disorders of heart valves are Stenosis and Insufficiency. ... It focuses on the mechanical activity of the heart that is coordinated by the ...
[DOC File]Cardiology - Stanford University
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Other two valves are called . semilunar valves (aortic and pulmonary valves). These valves open during systole to allow eject blood from the ventricles into the aorta or pulmonary artery and close during diastole. ... The heart is composed of three major types of cardiac muscle cells: ... The mechanical properties of the heart was studied in ...
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