Anna Roszczyk

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BACKGROUND Analysis of pathophysiological mechanisms responsible for vaso-vagal reaction reveals a close relationship between neurocardiogenic syncope and the preceding abnormalities of autonomic nervous system (ANS). Therefore, the interest in the assessment of heart rate variability (HRV) for detecting and establishing therapy in patients with syncope due(More)
BACKGROUND A degree of reduction of heart rate (HR) and blood pressure (BP) values following beta-blocker administration has been shown to indicate beta-blockade effectiveness. Whether this parameter is also useful in the identification of patients with vaso-vagal syncope (VVS) who could benefit from beta-blocker therapy, has not yet been established. AIM(More)
INTRODUCTION The head-up tilt test (TT) performed after sublingual nitroglycerine application (NTG) is a tool that is commonly accepted and widely used in diagnosing patients with unexplained syncope. Although the results of conducted trials suggest advantages related to the protocol of TT with NTG, but data concerning the special diagnostic value of this(More)
UNLABELLED Voluntary character of a choice of statistical methods weakens the reliability of the results of heart rate variability assessment and based on them clinical conclusions. The aim of the study was to estimate reliability of the chosen statistical methods of analysing changes in spectral components during tilt testing (TT). MATERIAL AND METHODS(More)
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