Sökning: "hjärt"

Visar resultat 11 - 15 av 249 avhandlingar innehållade ordet hjärt.

  1. 11. Regulation of vascular function by fluid mechanical forces. Development of a new vascular experimental platform for integrative physiological and molecular biological studies of living conduit vessels

    Författare :Li-Ming Gan; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; perfusion model; endothelium; smooth muscle cells; shear stress; pressure; nitric oxide; endothelin-1; vascular endothelial growth factor; c-jun; c-fos; real-time PCR; NO probe.;

    Sammanfattning : The vascular endothelium is a multifunctional interface between blood flow and target organs and is continuously exposed to fluid mechanical forces such as shear stress, compressive, and tensile forces. Both in vivo and in vitro data indicate that biomechanical forces exert important modulating effects on key vascular functions. LÄS MER

  3. 12. Autonomic function and myocardial repolarisation. Studies in renal diseases and in spinal cord injury

    Författare :Sinsia Gao; Göteborgs universitet; []
    Nyckelord :vagus; sympathetic nervous system; repolarisation; baroreflex; reproducibility; agreement; hypertension; spinal cord injury; autonomic dysreflexia; renal failure.;

    Sammanfattning : Both experimental and clinical evidence indicates that cardiac parasympathetic markers such as baroreflex sensitivity (BRS) and heart rate variability (HRV) have significant prognostic value. Furthermore, increased myocardial repolarisation lability reflected by increased QT variability index (QTVI) has been identified as a predictor for sudden cardiac death. LÄS MER

  4. 13. Timing of valve replacement in aortic stenosis. Clinical, diagnostic and prognostic factors of importance

    Författare :Peter Gjertsson; Göteborgs universitet; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  5. 14. Noninvasive characterization of patients with monomorphic ventricular tachycardia and ventricular fibrillation using the signal-averaged electrocardiogram. A study on late potentials and spectral turbulence in patients with ischemic heart disease and in healthy subjects

    Författare :Christer Gottfridsson; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; signal-averaged ECG; ventricular tachycardia; ventricular fibrillation; late potentials; spectral turbulence; bundle branch block;

    Sammanfattning : Many people die suddenly from sustained ventricular tachyarrhythmias caused by ischemic heart disease, and the sudden death may be the first presentation of heart disease. If the patients at risk of ventricular tachyarrhythmia could be identified, some patients may be saved. LÄS MER

  7. 15. Endogenous tissue-type plasminogen activator andendothelial function in vivo. A clinical perspective

    Författare :Thorarinn Gudnason; Göteborgs universitet; []
    Nyckelord :tissue-type plasminogen activator; endothelial function; age; vasodilation; chronic heart failure; coronary artery disease; local regulation; perfused-forearm model;

    Sammanfattning : Endogenous fibrinolysis is initiated by the glycoprotein tissue-type plasminogen activator (tPA), which is released from the vascular endothelium. Plasminogen activator inhibitor type 1 (PAI-1) is the main inhibitor of tPA. LÄS MER