scholarly journals AltitudeOmics: Resetting of Cerebrovascular CO2 Reactivity Following Acclimatization to High Altitude

2016 ◽  
Vol 6 ◽  
Author(s):  
Jui-Lin Fan ◽  
Andrew W. Subudhi ◽  
James Duffin ◽  
Andrew T. Lovering ◽  
Robert C. Roach ◽  
...  
Keyword(s):  
High Altitude ◽  
Co2 Reactivity ◽  
Cerebrovascular Co2 Reactivity

The Effect of Nitrous Oxide on Cerebrovascular CO2 Reactivity in Children Anesthetized with Propofol

2002 ◽  
Vol 96 (Sup 2) ◽  
pp. A1257
Author(s):  
Elaine M. Wilson-Smith ◽  
Igor A. Luginbuehl ◽  
Cengiz H. Karsli ◽  
Bruno Bissonnette
Keyword(s):  
Nitrous Oxide ◽  
Co2 Reactivity ◽  
Cerebrovascular Co2 Reactivity

scholarly journals Cerebrovascular CO2 reactivity: role of a cholinergic mechanism modulated by anesthesia.

Stroke ◽  
1978 ◽  
Vol 9 (2) ◽  
pp. 160-165 ◽  
Author(s):  
O U Scremin ◽  
E H Rubinstein ◽  
R R Sonnenschein
Keyword(s):  
Co2 Reactivity ◽  
Cholinergic Mechanism ◽  
Cerebrovascular Co2 Reactivity

Cerebrovascular CO2 reactivity in migraine with aura and without aura. A transcranial doppler study

2009 ◽  
Vol 92 (2) ◽  
pp. 166-169 ◽  
Author(s):  
G. Fiermonte ◽  
F. Pierelli ◽  
F. Pauri ◽  
F. I. I. Cosentino ◽  
R. Soccorsi ◽  
...  
Keyword(s):  
Migraine With Aura ◽  
Transcranial Doppler ◽  
Co2 Reactivity ◽  
Doppler Study ◽  
Cerebrovascular Co2 Reactivity

scholarly journals .ALPHA.-Adrenergic Blockade with Phenoxybenzamine Enhances Cerebrovascular CO2 Reactivity.

1993 ◽  
Vol 42 (2) ◽  
pp. 60-63 ◽  
Author(s):  
Yoshio Izumi ◽  
Yasuo Fukuuchi ◽  
Akira Imai ◽  
Kazuo Isozumi
Keyword(s):  
Adrenergic Blockade ◽  
Co2 Reactivity ◽  
Cerebrovascular Co2 Reactivity

MK-801 does not prevent impaired cerebrovascular reactivity to CO2 during hypoglycemia in piglets

1993 ◽  
Vol 264 (6) ◽  
pp. H2124-H2130
Author(s):  
P. J. St Jacques ◽  
J. R. Kirsch ◽  
M. N. Diringer ◽  
R. J. Traystman
Keyword(s):  
Nmda Receptor ◽  
Time Course ◽  
Nmda Receptor Antagonist ◽  
Cerebrovascular Reactivity ◽  
Co2 Reactivity ◽  
Resistance Change ◽  
Mk 801 ◽  
Cerebrovascular Resistance ◽  
Cerebrovascular Co2 Reactivity ◽  
Made In

We tested the hypothesis that severe insulin-induced hypoglycemia would depress cerebrovascular reactivity to CO2 via a mechanism that could be prevented by administration of the N-methyl-D-aspartate (NMDA) receptor antagonist MK-801 in infant piglets. Cerebral blood flow (CBF) was measured (microspheres) in 2- to 3-wk-old pentobarbital-anesthetized piglets during hypocapnia, normocapnia, and hypercapnia. Repeat CBF measurements were made either 1 (n = 5) or 2 h (n = 6) after insulin (200 U/kg iv) to elicit the time course of altered reactivity to CO2. Repeat CBF measurements were made in a third group (n = 5) 2 h after treatment with insulin and MK-801 (1.5 mg/kg iv bolus, 0.15 mg.kg-1.h-1 iv infusion) to determine whether any alteration in reactivity to CO2 was due to a mechanism involving the NMDA receptor. Cerebrovascular resistance and cerebral O2 consumption (CMRO2) were calculated with each measurement of CBF. Cerebrovascular response to CO2 (change in cerebrovascular resistance/change in arterial CO2 tension) was ablated in the group of piglets exposed to 1 or 2 h of hypoglycemia (preinsulin 1-h group, 0.038 +/- 0.007; preinsulin 2-h group, 0.023 +/- 0.004 mmHg.ml-1.min.100 g.mmHg CO2(-1)). Treatment with MK-801 did not alter normoglycemic CO2 reactivity (preinsulin, 0.032 +/- 0.005 mmHg.ml-1.min.100 g.mmHg CO2(-1)) and did not prevent ablation of cerebrovascular CO2 reactivity during hypoglycemia. CMRO2 was not affected by hypoglycemia in any group.(ABSTRACT TRUNCATED AT 250 WORDS)

The Effects of Fentanyl and Isoflurane on the Cerebrovascular CO2 Reactivity

1995 ◽  
Vol 29 (3) ◽  
pp. 373
Author(s):  
Sung Chang Woo ◽  
Jai Hyun Hwang ◽  
Jong Ho Choi ◽  
Joung Uk Kim ◽  
Sung Kang Cho ◽  
...  
Keyword(s):  
Co2 Reactivity ◽  
Cerebrovascular Co2 Reactivity

Differential cerebrovascular CO2 reactivity in anterior and posterior cerebral circulations

2013 ◽  
Vol 189 (1) ◽  
pp. 76-86 ◽  
Author(s):  
Rachel J. Skow ◽  
Christina M. MacKay ◽  
Michael M. Tymko ◽  
Christopher K. Willie ◽  
Kurt J. Smith ◽  
...  
Keyword(s):  
Co2 Reactivity ◽  
Cerebrovascular Co2 Reactivity
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