Sökning: "B-waves"

Hittade 4 avhandlingar innehållade ordet B-waves.

  1. 1. Adult hydrocephalus. Intracranial pressure, B-wave and clinical analysis in patients with noncommunicating and communicating hydrocephalus

    Författare :Hannes Stephensen; Göteborgs universitet; []
    Nyckelord :CSF circulation; hydrocephalus; NPH; communicating hydrocephalus; noncommunicating hydrocephalus; aqueduct stenosis; intracranial pressure; B-waves; transmantle pressure gradient; computerised data acquisition; clinical symptoms.;

    Sammanfattning : Aims of present investigations. Adult patients with clinical and radiological findings consistent with normal pressure hydrocephalus (NPH) were studied. LÄS MER

  3. 2. 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. 3. The search for reversibility of Idiopathic normal pressure hydrocephalus : Aspects on intracranial pressure measurments and CSF volume alteration

    Författare :Niklas Lenfeldt; Jan Malm; Anders Eklund; Katrine Riklund-Åhlström; John D. Pickard; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Idiopathic normal pressure hydrocephalus; intracranial pressure; subcortical ischemia; neuronal integrity; cortical activation.; infusion test; cerebrospinal fluid dynamics; outflow resistance; compliance; elastance; proton spectroscopy; functional MRI; external lumbar drainage; Neurology; Neurologi;

    Sammanfattning : BACKGROUND: Idiopathic normal pressure hydrocephalus (INPH) is still a syndrome generating more questions than answers. Today, research focuses mainly on two areas: understanding the pathophysiology – especially how the malfunctioning CSF system affects the brain parenchyma – and finding better methods to select patients benefiting from a shunt operation. LÄS MER

  5. 4. The interaction between the neuroretina and the retinal pigment epithelium : an electrophysiological study of the effects of possible messenger substances and their analogues

    Författare :Ragnheiður Bragadóttir; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : The retinal pigment epithelium (RPE) is of great importance in photoreceptor homeostasis. The photoreceptors are highly specialized cells which cannot survive without the RPE. It has been postulated that messenger substances are involved in the interaction between the RPE and the inner retina. LÄS MER