Key result
The arterial baroreflex plays an important role in the regulation of cerebral blood flow, primarily through indirect hemodynamic effects such as baroreflex-mediated changes in cardiac output.
The arterial baroreflex plays an underappreciated, indirect role in cerebral blood flow regulation via cardiac output modulation, suggesting that baroreflex dysfunction may contribute to impaired cerebral autoregulation in cardiovascular diseases.
Baroreflex dysfunction may contribute to impaired cerebral autoregulation; hypothesis-generating and should not yet change practice.
The arterial baroreflex plays an essential role in the short-term regulation of arterial blood pressure, and thus helps ensure that the vital organs are adequately perfused. For standing humans, appropriate arterial baroreflex control of cardiac output and vasomotor tone are particularly important for cerebral blood flow regulation. However, the numerous mechanisms implicated in the regulation of the cerebral vasculature (e.g. cerebral autoregulation, carbon dioxide reactivity) mean that the precise nature of the direct and indirect effects of the arterial baroreflex on cerebral blood flow regulation are highly complex and remain incompletely understood. This review paper provides an update on recent insights into the influence of the arterial baroreflex on cerebral circulation.
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Ogoh et al. (2012) conducted a review in Cerebral blood flow regulation. Arterial baroreflex was evaluated. The arterial baroreflex plays an important role in the regulation of cerebral blood flow, primarily through indirect hemodynamic effects such as baroreflex-mediated changes in cardiac output.
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