Reversible cerebral vasoconstriction syndrome (RCVS) is a complex neurovascular disorder
being recognized during the past two decades. It is characterized by multiple abrupt severe …

Cerebral autoregulation (CA) refers to the properties of the brain vascular bed to maintain
cerebral perfusion despite changes in blood pressure (BP). Whereas classic studies have …

Background and Purpose—The relationship between middle cerebral artery (MCA) flow
velocity (CFV) and cerebral blood flow (CBF) is uncertain because of unknown vessel …

Short-term regulation of cerebral blood flow (CBF) is controlled by myogenic, metabolic and
neurogenic mechanisms, which maintain flow within narrow limits, despite large changes in …

Introduction Cerebral autoregulation (CA) is a theoretical construct characterized by the
relationship between mean arterial pressure (MAP) and cerebral blood flow (CBF). We …

The influence of different types of maneuvers that can induce sudden changes of arterial
blood pressure (ABP) on the cerebral blood flow velocity (CBFV) response was studied in 56 …

Previous studies have identified several brain regions involved in the sympathetic response
and its integration with pain, cognition, emotions and memory processes. However, little is …

Brain dysfunction is a frequent complication of sepsis, usually defined as “sepsis-associated
encephalopathy”(SAE). Its pathophysiology is complex and related to numerous processes …

Background and purpose: In humans, activation of the diving reflex by a cold stimulus to the
face results in bradycardia, peripheral vasoconstriction and an increase in blood pressure …

Objectives: Tissue oxygen saturation and peripheral perfusion index are proposed as early
indirect markers of hypovolemia in trauma patients. Hypovolemia is associated with …