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  • Title: [Adaptation of cerebral blood flow to orthostatic stress in children with neurally mediated syncope].
    Author: Gergont A.
    Journal: Przegl Lek; 2007; 64 Suppl 3():84-6. PubMed ID: 18431923.
    Abstract:
    In the pathogenesis of neurally mediated syncope the key role play autonomic dysregulation of cardiovascular function. The clinical picture of syncope alone may not be sufficient for precise diagnosis, therefore the assessment of hemodynamic changes and cerebral function is necessary. The interdisciplinary management resulted in development of functional methods of examination of cardiovascular responses with special attention to head-up tilt test. The presentation of simultaneous cerebral blood flow monitoring during orthostatic stress resulted in the progress in evaluation of syncope and explanation of pathomechanism. The changes in the velocities in the middle cerebral artery before syncope were detected with Doppler examination. Results of several examinations are however not consistent. The development of new methods of examination of cerebral blood flow as autonomic nervous system as well, since autonomic balance disturbances were detected in children with neurally mediated syncope.
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