Search for dissertations about: "prosthetic heart valves"

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

  2. 1. 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

  4. 2. 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

  5. 3. 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

  6. 4. Genotypic and phenotypic characterisation of Staphylococcus epidermidis isolated from prosthetic joint infections

    Author : Bengt Hellmark; Bo Söderquist; Magnus Unemo; Åsa Nilsdotter; Tor Monsén; Örebro universitet; []
    Keywords : Staphylococcus epidermidis; prosthetic joint infections; antibiotic susceptibility; virulence factors; epidemiology; MLST; agr; SCCmec; MEDICINE; MEDICIN; Biomedicin; Biomedicine;

    Abstract : Staphylococcus epidermidis has emerged in recent years as an important nosocomial pathogen, especially in infections associated with implanted foreign body materials (e.g., prosthetic joints and heart valves) and in individuals with a compromised immune system (e.g. READ MORE

  7. 5. Noninvasive haemodynamic evaluation of aortic valve prostheses : Doppler echocardiographic studies at rest and during exercise

    Author : Maria J Eriksson; Karolinska Institutet; Karolinska Institutet; []
    Keywords : heart valve prosthesis; aortic valve replacement; Doppler echocardiography; exercise; haemodynamics; valve resistance;

    Abstract : The present series of investigations was designed to supply information on in vivo pressure-flow relationships and to analyse the incidence of regurgitation in different heart valve prostheses in the aortic position. Patients and methods: The study population comprised 185 patients with mechanical Björk-Shiley Monostrut prostheses, 54 patients with Biocor stented porcine bioprostheses, 50 patients with extended Biocor stentless bioprostheses and 59 patients with cryopreserved aortic homografts. READ MORE