Analysis of some parameters of blood homeostasis and their influence on cerebral blood flow in patients with ischemic stroke
Keywords:
ischemic brain damage, main artery of the brain, the linear velocity of bloodstream, parameters of homeostasisAbstract
Totally in 50 patients with acute ischemic stroke were assassed relationes between biochemical parameters of venous blood, some indices of homeostasis and mean blood flow velocities in magistral arteries of brain (ultrasound Dopplerography data). In patients with high arterial systolic and diastolic pressure the mean blood flow velocity was less in all magistral segments . The signs of blood cloting were accompanied with less velocities of blood flow in extracranial segments of carotic and vertebral arteries In patients with elevated level of serum protein more high velocyties in intracranial segments of carotid arteries were noted . Moderate fluctuations of electrolaites and glucose levels in sera did not show any significant changes in cerebral blood velocities. Deviations toward compensated metabolic acidosis were noted in patients with moderate and low blood flow velocities in extracranial segments of carotid and vertebral arteries. Thus, it was established that different segments of cerebral arterial system show different resistance to changes of parameters of homeostasis. This fact could be attended in complex therapy of patients with acute stroke.
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Copyright (c) 2000 Orest Tsimeyko, Marina Globa, Nataliya Gujovska, Galina Yakhnenko
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