Sökning: "coronary artery blood flow"

Visar resultat 21 - 25 av 45 avhandlingar innehållade orden coronary artery blood flow.

  1. 21. Arterial pulse wave analysis. With special reference to vasoactive and anaesthetic drugs and to heart lung interactions

    Författare :Staffan Söderström; Göteborgs universitet; []
    Nyckelord :pulse; blood pressure physiology; hypertension; aged; vasodilation; ventricular function; left; nitroglycerin; coronary disease; artificial respiration; fentanyl.;

    Sammanfattning : In the young systolic arterial pressures (SAP) are higher in the radial artery than in the proximal aorta. Due to increased large artery stiffness and early pulse wave reflection aortic SAP increases more with age than peripheral SAP. LÄS MER

  3. 22. Studies on arterial endothelial function and intima-media thickness using ultrasound technique

    Författare :Morteza Rohani; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Ultrasound; atherosclerosis; flow mediated dilatation; endothelial function; carotid arteries; thoracic aorta; brachial artery; coronary artery disease; nicotine; snuff; prednisolone; rheumatoid arthritis;

    Sammanfattning : Background: The development of ultrasonographic arterial imaging, high-resolution B-mode ultrasonography, has created a technical basis for a new diagnostic approach to atherosclerotic disease by offering the possibility of accurate and reproducible quantification of the structural and functional changes in the arterial wall. Flow-mediated dilation (FMD) of the brachial artery and carotid intima-media thickness (IMT) have been shown to be good surrogate markers of atherosclerosis. LÄS MER

  4. 23. The importance of endothelin-1 for vascular function in patients with atherosclerosis and healthy controls

    Författare :Felix Böhm; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Acetylcholine; atherosclerosis; blood flow; circulation; coronary disease; endothelin; endothelium; kidney; liver; nitric oxide; patients; receptors; vasoconstriction.;

    Sammanfattning : Background: Atherosclerosis is associated with endothelial dysfunction, which is an early sign with prognostic implications in patients with coronary artery disease. Atherosclerosis is also associated with enhanced expression of the vasoconstrictor peptide endothelin-1 (ET-1). LÄS MER

  5. 24. Electromechanical effects and optimization modalities of cardiac resynchronization therapy

    Författare :Cinzia Valzania; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Cardiac resynchronization therapy; coronary blood flow; dyssynchrony; echocardiography; exercise; heart failure; hemodynamics; intracardiac electrogram; intracardiac impedance; optimization;

    Sammanfattning : Background and aims: Heart failure is a major health care problem, with high morbidity and mortality rates. In recent years, cardiac resynchronization therapy (CRT) has become an established additive treatment for patients with advanced heart failure, left ventricular (LV) dysfunction, and wide QRS complex. LÄS MER

  7. 25. Responsiveness of human circulating phagocytes in relation to the inflammatory condition

    Författare :Lena Wehlin; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :CABG; COPD; CPB; flow cytometry; inflammation; leukocyte; responsiveness;

    Sammanfattning : In the early stages of the inflammatory process, monocytes and granulocytes constitute important effector cells that must function correctly in order to clear infection. By activating leukocytes in vitro it is possible to mimic the in vivo activation of these cells and study their activation potential. LÄS MER