• present
  • In the present study we addressed the question of whether in brain areas contralateral to a photochemically induced cortical infarction alteration of excitability can be observed as an indication of the effects of diaschisis. (ahajournals.org)
  • The aim of the present study was to investigate the chronic effects of a unilateral photothrombotic lesion on the electrophysiological properties of the contralateral brain. (ahajournals.org)
  • Cytotoxic edema may be present not only in infarction/ischemia and trauma, but also in status epilepticus, the acute phase of multiple sclerosis , toxic or metabolic leuko-encephalopathy, osmotic myelinolysis, encephalitis, and presumably in the early phase of transneuronal or wallerian degeneration and Creutzfeldt-Jakob disease. (mussenhealth.us)
  • left
  • The longitudinal fissure runs from the brow to the back of the head, and deep within it is a bed of matted white fibers, the corpus callosum , which connects the left and right cerebral hemispheres . (thefreedictionary.com)
  • blood
  • This approach advocates the use of initial monotherapy to reach the desired blood pressure, and the subsequent use of additional drugs with complementary modes of action, until the target BP is achieved. (stanford.edu)
  • Adding to this, Combination Therapy in Hypertension will cover current control rates of blood pressure worldwide, the benefits of monotherapy and combination therapy, examine the effectiveness, risk of adverse effects, compliance, and cost of the available therapies and will also include information on relevant outcome studies. (stanford.edu)
  • These alterations may involve resting blood flow, brain metabolism, and spontaneous or evoked electrophysiological activity of the brain. (ahajournals.org)
  • Vasogenic edema is characterized by dysfunction of the blood-brain barrier, allowing an abnormal passage of proteins, electrolytes and water into the extracellular compartments. (mussenhealth.us)
  • Osmotic and hydrostatic gradients will also cause interstitial edema, increasing the extracellular space as water shifts from blood vessels and/or ventricles. (mussenhealth.us)
  • Vasogenic edema, as shown on this tissue stain of a trauma case (arrows), is the result of plasma leakage through the blood vessel walls. (mussenhealth.us)
  • Venous ischemia at first shows a vasogenic edema due to venous congestion and a breakdown of the normal blood-brain barrier. (mussenhealth.us)
  • increase
  • 15 16 17 In agreement with this, Hossmann et al 18 found an increase of somatosensory evoked potential amplitudes in rat brain in the first 24 hours after middle cerebral artery occlusion. (ahajournals.org)
  • In vasogenic and interstitial edema, electron microscopy has shown an increase of interstitial spaces in white matter amounting to 1000 nm, versus 60 nm in normal white matter .These enlarged extracellular spaces, with free water, may be the dominant source for the total brain water signal, resulting in increased ADC. (mussenhealth.us)
  • The increase in extracellular space osmolarity will result in a marked increase in extracellular water, i.e. vasogenic edema (hematoxylin-eosin stain, original magnification x200). (mussenhealth.us)