Sökning: "intracranial pressure"

Visar resultat 16 - 20 av 71 avhandlingar innehållade orden intracranial pressure.

  1. 16. Influence of middle ear pressure changes on labyrinthine hydrodynamics and hearing physiology

    Författare :Konrad Konradsson; Lund näs- och halssjukdomar Öron-; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; auditive system and speech; audiology; Pressure; Audiometry; Cats; Animal; Cochlea; Cochlear aqueduct; Ear; Eustachian tube; Hearing; Otorinolaryngologi; Human; Labyrinth; Otorhinolaryngology; Meniere s disease; audiologi; hörsel- och talorganen;

    Sammanfattning : Results from experimental studies, as well as clinical studies, are used to elucidate the effects of ambient pressure changes on cochlear hydrodynamics and function. The perilymph pressure changes and the pressure release effects of the cochlear aqueduct (CA) and Eustachian tube (ET) in cats exposed to hypobaric pressure are elucidated. LÄS MER

  3. 17. On the pathophysiology of idiopathic adult hydrosephalus syndrome : energy metabolism, protein patterns, and intracranial pressure

    Författare :Aina Ågren Wilsson; Per Enblad; Umeå universitet; []
    Nyckelord :hydrocephalus; biochemical markers; microdialysis; cerebrospinal fluid; B waves; brain tissue oxygen tension; Neurology; neurologi;

    Sammanfattning : The symptoms in Idiopathic Adult Hydrocephalus Syndrome (IAHS) – gait disturbance, incontinence, and cognitive deficit – correlate anatomically to neuronal dysfunction in periventricular white matter. The pathophysiology is considered to include a cerebrospinal fluid (CSF) hydrodynamic disturbance, including pressure oscillations (“B waves”), in combination with cerebrovascular disease. LÄS MER

  4. 18. Glutamate Turnover and Energy Metabolism in Brain Injury : Clinical and Experimental Studies

    Författare :Carolina Samuelsson; Elisabeth Ronne-Engström; Lars Hillered; Eva Kumlien; Carl-Henrik Nordström; Uppsala universitet; []
    Nyckelord :Neurosciences; glutamate; glutamine; lactate; pyruvate; microdialysis; GLT-1; energy metabolism; intracranial pressure; cerebral perfusion pressure; subarachnoid hemorrhage; ischemia; epilepsy; Neurovetenskap;

    Sammanfattning : During brain activity neurons release the major excitatory transmitter glutamate, which is taken up by astrocytes and converted to glutamine. Glutamine returns to neurons for re-conversion to glutamate. This glutamate-glutamine cycle is energy demanding. LÄS MER

  5. 19. The Neurological Wake-up Test in Neurocritical Care

    Författare :Karin Skoglund; Niklas Marklund; Per Enblad; Tiit Mathiesen; Uppsala universitet; []
    Nyckelord :Intracranial pressure; Cerebral perfusion pressure; Propofol sedation; Wake-up test; stress hormones; intracerebral microdialysis; brain tissue oxygenation; jugular venous oxygenation; Neurokirurgi; Neurosurgery;

    Sammanfattning : The neurological wake-up test, NWT, is a clinical monitoring tool that can be used to evaluate the level of consciousness in patients with traumatic brain injury (TBI) and subarachnoid haemorrhage (SAH) during neurocritical care (NCC). Since patients with severe TBI or SAH are often treated with mechanical ventilation and sedation, the NWT requires that the continuous sedation is interrupted. LÄS MER

  7. 20. Idiopathic Normal Pressure Hydrocephalus : Aspects on Pathophysiology, Clinical Characteristics and Evaluation Methods

    Författare :Fredrik Lundin; Göran Leijon; Carsten Wikkelsø; Bertil Romner; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : Introduction. Idiopathic normal pressure hydrocephalus (iNPH) is a condition with enlargement of the cerebral ventricular system and an intracranial pressure (ICP) within normal limits. LÄS MER