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Cardiovascular Rhythms in Vasovagal Syncope

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Vasovagal Syncope

Abstract

Vasovagal syncope is a disorder of regulation in which different quantities of neural sympathetic and vagal activities interact, resulting in an unstable autonomic profile before the loss of consciousness. The functional state of the cardiovascular autonomic control is mirrored by the amplitude (power) of the spontaneous fluctuations in RR interval and blood pressure variability and in the pattern of the discharge activity of the post-ganglionic sympathetic fibers (muscle sympathetic nerve activity, MSNA). Power-spectrum and cross-spectrum analysis methodologies enable the identification of the frequency and the quantification of the amplitude of these fluctuations, giving a valuable insight into the autonomic changes preceding vasovagal events which may remain hidden when simple heart rate or blood pressure values are considered.

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Authors and Affiliations

  1. Internal Medicine, Humanitas Clinical and Research Center, Humanitas Research Hospital, Via Manzoni, 56, Rozzano, Milan, 20089, Italy

    Raffaello Furlan MD

  2. Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy

    Raffaello Furlan MD

  3. Unità Sincopi e Disturbi della Postura, Medicina Interna 4, Clinica Medica, Milan, Italy

    Raffaello Furlan MD

  4. Cardiovascular Neuroscience Lab, Department of Biomedical and Clinical Sciences, Internal Medicine II, L. Sacco Hospital, University of Milan, Via G.B. Grassi, 74, Milan, 20157, Italy

    Nicola Montano

  5. IRCCS Galeazzi Orthopedic Institute, Via R. Galeazzi, 4, Milan, 20161, Italy

    Alberto Porta

  6. Department of Biomedical Sciences for Health, University of Milan, Milan, Italy

    Alberto Porta

Authors
  1. Raffaello Furlan MD
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  2. Nicola Montano
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  3. Alberto Porta
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Correspondence to Raffaello Furlan MD .

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Editors and Affiliations

  1. Section of Cardiology, Ospedale Privato Quisisana, Ferrara, Italy

    Paolo Alboni

  2. Department of Medicine - BIOMETRA, Humanitas Research Hospital, Rozzano, Milan, Italy

    Raffaello Furlan

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© 2015 Springer International Publishing Switzerland

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Furlan, R., Montano, N., Porta, A. (2015). Cardiovascular Rhythms in Vasovagal Syncope. In: Alboni, P., Furlan, R. (eds) Vasovagal Syncope. Springer, Cham. https://doi.org/10.1007/978-3-319-09102-0_8

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  • DOI: https://doi.org/10.1007/978-3-319-09102-0_8

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-09101-3

  • Online ISBN: 978-3-319-09102-0

  • eBook Packages: MedicineMedicine (R0)

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