Heart rate variability and the dynamic nature of the retinal microvasculature: providing insight into the brain-retina-heart link: the SABPA study
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Abstract
Controversy exists regarding the contribution of
the autonomic nervous system (ANS) to the retinal microvasculature’s autoregulatory capacities. It was demonstrated that mean
retinal vessel responses to systemic sympathetic stimulation were
significantly reduced in sympathectomised eyes. Decreased heartrate-variability (HRV) indicates increased sympathetic nervous
system (SNS) activity and modulation with a shift in the sympathovagal balance towards SNS predominance, vagal withdrawal or
both. Increased SNS activity may precede volume-loadin
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Wentzel, A. et al. 2019. Heart rate variability and the dynamic nature of the retinal microvasculature: providing insight into the brain-retina-heart link: the SABPA study. 3rd Joint Meeting of the European-Society-for-Microcirculation (ESM) and the European-Vascular-Biology-Organization (EVBO), April 2019, Maastricht, Netherlands, Abstract 271. Journal of vascular research, 56 (Suppl 1):125. [https://doi.org/10.1159/000499516]