Continuous cerebral blood flow autoregulation
monitoring in patients undergoing liver transplantation.
The pathophysiology of PRES is thought to involve disruption to cerebral blood flow autoregulation
, endothelial dysfunction, and vasogenic edema (1).
Zweifel et al., "Real time continuous monitoring of cerebral blood flow autoregulation
using near-infrared spectroscopy in patients undergoing cardiopulmonary bypass," Stroke, vol.
pneumoniae bacteremia on cerebral blood flow autoregulation
in rats," Journal of Cerebral Blood Flow & Metabolism, vol.
During the initial stages of hemorrhagic stroke, including intracerebral hemorrhage (ICH) and subarachnoid hemorrhage (SAH), the reflex mechanisms are activated to protect cerebral perfusion, but secondary dysfunction of cerebral flow autoregulation
will eventually reduce global CBF and the delivery of metabolic substrates, leading to generalized cerebral ischemia, hypoxia, and ultimately, neuronal cell death.
de Riva et al., "The relationship between cerebral blood flow autoregulation
and cerebrovascular pressure reactivity after traumatic brain injury," Neurosurgery, vol.
Elevated SUA can induce renal vasoconstriction and impair autoregulation, which adversely affects renal blood flow autoregulation
and the glomerular filtration rate (GFR).
Propofol total intravenous anesthesia (TIVA) maintains cerebral blood flow autoregulation
and is considered superior to inhalant agents as an anesthetic protocol for patients with intracranial lesions.
 This syndrome is a clinico-neuroimaging entity and is hypothesised to be related to impaired cerebral blood flow autoregulation
that leads to either over- or under-perfusion of the brain.
PRES may be associated with a failure in cerebral blood flow autoregulation
combined with endothelial dysfunction (5).
Retinal blood flow autoregulation
in response to an acute increase in blood pressure.
The cerebral blood flow autoregulation
mechanism is intact CA when PRx is negative.