Alterations in arterial oxygen and carbon dioxide influence cerebrovascular resistance and
therefore cerebral blood flow (CBF), but the magnitude of these CBF responses have not …

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

Internal carotid blood flow, taken as an index of cerebral blood flow (CBF); arterial pressure;
and respiratory O2 and CO2 concentrations, were measured in halothane (1%) …

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) …

Materials and methods Cerebral blood flow velocity was recorded by means of transcranial
Doppler in both middle cerebral arteries (MCAv left and right). The mean arterial pressure …

It is has been demonstrated that clinical outcome following head injury is correlated with the
reactivity of the cerebrovasculature to carbon dioxide changes. Since CBF measurements …

✓ Cerebral blood flow (CBF) was measured in 39 men at normocapnia and after 5% CO 2
inhalation using the xenon-133 technique. Twenty-three patients had unilateral carotid …

Key points• Arterial CO2 serves as a mediator of cerebral blood flow, and its relative
influence on the regulation of cerebral blood flow is defined as cerebral CO2 reactivity.• …

The response of cerebral blood flow to changes in the arterial carbon dioxide partial
pressure (ie, carbon dioxide reactivity) has been evaluated as a parameter of cerebral …

A proportion of individuals with carotid artery stenosis show a reduced cerebrovascular
reserve as measured by a reduced cerebral arterial vasodilatory response to carbon …