Search for dissertations about: "mechanical heart valves"

Showing result 1 - 5 of 8 swedish dissertations containing the words mechanical heart valves.

  2. 1. Hemocompatibility of materials for use in prosthetic heart valves

    Author : Yanqi Yang; Eric G. Butchart; Linköpings universitet; []
    Keywords : Heart valve prosthesis; mechanical heart valves; bioprosthetic heart valves; biomaterials; hemocompatibility; blood-material interaction; in vivo test; MEDICINE; MEDICIN;

    Abstract : Thromboembolism (valve thrombosis and systemic embolism) is the main drawback of mechanical heart valve prostheses. The patients carrying these valves have to be subjected to life-long anticoagulant therapy to reduce thromboembolism. READ MORE

  4. 2. Prosthetic aortic heart valves

    Author : Natalie Glaser; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Background: Aortic valve replacement (AVR) can be performed with different types of valve prostheses. There is no perfect aortic valve prosthesis, and the prosthetic choice for each patient requires careful consideration. This thesis evaluates mortality, morbidity, and prosthetic valve function after AVR with different aortic valve prostheses. READ MORE

  5. 3. Patient-Specific Finite Element Modeling of the Blood Flow in the Left Ventricle of a Human Heart

    Author : Jeannette Hiromi Spühler; Johan Hoffman; Johan Jansson; Mariano Vazquez; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Finite element method; Arbitrary Lagrangian-Eulerian method; Fluid-Structure interaction; Contact model; parallel algorithm; blood flow; left ventricle; aortic valves; patient-specific heart model;

    Abstract : Heart disease is the leading cause of death in the world. Therefore, numerous studies are undertaken to identify indicators which can be applied to discover cardiac dysfunctions at an early age. READ MORE

  6. 4. Epidemiological studies of bioprosthetic aortic valves

    Author : Michael Dismorr; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Background: The use of bioprosthetic valves is common and offers a prosthetic option that does not require anti-coagulant therapy, but with shorter valve longevity compared to mechanical prostheses. Valve model selection might influence the long-term performance of the prosthesis. READ MORE

  7. 5. Extending MRI to the Quantification of Turbulence Intensity

    Author : Petter Dyverfeldt; Tino Ebbers; Krishna Nayak; Linköpings universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Turbulence intensity; cardiovascular disease; blood flow; hemodynamics; magnetic resonance imaging; generalized phase-contrast MRI; turbulent flow; Medical technology; Medicinsk teknik; Fluid mechanics; Strömningsmekanik;

    Abstract : In cardiovascular medicine, the assessment of blood flow is fundamental to the understanding and detection of disease. Many pharmaceutical, interventional, and surgical treatments impact the flow. The primary purpose of the cardiovascular system is to drive, control and maintain blood flow to all parts of the body. READ MORE