There is considerable utility in the use of transcranial Doppler ultrasound (TCD) to assess
cerebrovascular function. The brain is unique in its high energy and oxygen demand but …

Cerebral autoregulation (CA) is integral to the delicate process of maintaining stable
cerebral perfusion and brain tissue oxygenation against changes in arterial blood pressure …

Ageing is the primary risk factor for cognitive deterioration. Given that the cerebral blood flow
(CBF) or regulation of cerebral circulation is attenuated in the elderly, it could be expected …

We assessed the convergent validity of commonly applied metrics of cerebral autoregulation
(CA) to determine the extent to which the metrics can be used interchangeably. To examine …

The cerebrovasculature dilates or constricts in response to acute blood pressure changes to
stabilize cerebral blood flow across a range of blood pressures. It is unclear, however …

Key points• Cerebral autoregulation maintains cerebral perfusion relatively constant in the
face of slow changes in arterial pressure, but is less effective against more rapid changes (ie …

Cerebral autoregulation refers to the mechanisms that act to keep cerebral blood flow (CBF)
constant during changes in blood pressure. The mechanisms of cerebral autoregulation …

It remains unclear whether orthostatic stress evokes regional differences in cerebral blood
flow. The present study compared blood flow in the internal carotid (ICA) and vertebral …

The functional relationship between dynamic cerebral autoregulation (CA) and arterial
baroreflex sensitivity (BRS) in humans is unknown. Given that adequate cerebral perfusion …

The purpose of the present study was to assess the effect of heat stress-induced changes in
systemic circulation on intra-and extracranial blood flows and its distribution. Twelve healthy …