This study characterized cerebral blood flow (CBF) responses in the middle cerebral artery
to P CO2ranging from 30 to 60 mmHg (1 mmHg= 133.322 Pa) during hypoxia (50 mmHg) …

The ventilatory response to carbon dioxide (CO2) measured by the steady-state method is
lower than that measured by Read's rebreathing method. A change in end-tidal PCO2 …

New Findings What is the central question of this study? The relationship between changes
in cerebral blood flow and arterial carbon dioxide tension is used to assess cerebrovascular …

The potential differences in cerebrovascular responses between the anterior and posterior
circulations to changes in CO 2 are unclear in humans. Using transcranial Doppler …

It is well established that the ventilatory response to carbon dioxide (CO2) measured by
modified rebreathing (SrVE) is closer to that measured by the steady-state method (SsVE) …

Non‐technical summary Two mechanisms control brain blood flow by changing blood
vessel diameter: autoregulation maintains flow in the face of perfusion pressure changes …

We retrospectively examined arterial and endtidal estimations of CO2 tension used to
calculate cerebrovascular reactivity in 68 anesthetized patients. CBF was measured using …

New Findings What is the central question of this study? There is an interaction between the
regulatory systems of respiration and cerebral blood flow, because the mediator (CO2) is the …

Cerebral blood flow (CBF) was measured by 133Xe clearance simultaneously with the
velocity of blood flow through the left middle cerebral artery (MCA) over a wide range of …

This study examined cerebrovascular reactivity and ventilation during step changes in CO2
in humans. We hypothesized that:(1) end‐tidal P (P) would overestimate arterial P (P) during …