Sökning: "baroreflex"

Visar resultat 1 - 5 av 11 avhandlingar innehållade ordet baroreflex.

  1. 1. Cardiovascular regulation and vascular structure in prehypertension and coronary heart disease

    Författare :Anna Myredal; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Nyckelord :prehypertension; coronary heart disease; repolarization; baroreflex; intima thickness; CABG; non-dippers;

    Sammanfattning : The aim of this thesis was to characterize vascular structure and different aspects of cardiovascular regulation in otherwise healthy subjects with slightly elevated blood pressure and compare to healthy subjects with normotension and also investigate patients with established primary or secondary hypertension and coronary heart disease. Altered cardiac repolarization and arterial baroreflex function has been associated with adverse prognosis and increased risk for ventricular arrhythmias in patients with cardiovascular diseases. LÄS MER

  2. 2. Central nervous modulation of pain - a clinical and experimental study

    Författare :Christopher Lundborg; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Nyckelord :pain; head and neck; cisterna magna; baroreflex; noradrenaline; GDNF; co-cultured astrocytes; naloxon; osteoarthritis; calcium;

    Sammanfattning : This series of studies addresses several conceptual issues in modern pain therapy related to the contemporary understanding of mechanisms and modulators involved in the pain sensation. Novel invasive therapy for severe pain, neurogenic interactions, humoral regulators and cellular responses were studied. LÄS MER

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

    Författare :Sinsia Gao; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    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. 4. Sympathetic function in cardiac disorders.Upon cardio-renal sympathetic activity and effects of nitroglycerin in human heart failure

    Författare :Magnus Petersson; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Nyckelord :heart failure; renovascular hypertension; sympathetic nervous system; noradrenaline; mortality; renal circulation; cardiovascular physiology; baroreflex; nitroglycerin;

    Sammanfattning : This study explores pathophysiological mechanisms and prognostic implications of sympathetic activation in patients with atherosclerotic renovascular hypertension (RVH) and with chronic heart failure (CHF). Hitherto, it is unknown whether cardiac sympathetic activation is present in patients with RVH, the presence of which could relate to the increased cardiovascular mortality observed in this disorder. LÄS MER

  5. 5. Psychomotor and cardiorespiratory functions during inert gas sedation

    Författare :Anders Östlund; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; arterial baroreflex; heart rate; gas density; hyperbaric bradycardia; inert gas; inspiratory loading; narcosis; nitrous oxide; sedation; ventilation;

    Sammanfattning : Relative hypoventilation and bradycardia are commonly observed in both resting and exercising divers. Divers are exposed to a complex environment where there are increases of hydrostatic pressure, gas density and partial pressure of sedating inert gas. LÄS MER