scholarly journals Sustained moderate reductions in arterial CO2 after brain trauma Time-course of cerebral blood flow velocity and intracranial pressure

2004 ◽  
Vol 30 (12) ◽  
pp. 2180-2187 ◽  
Author(s):  
Luzius A. Steiner ◽  
Marcella Balestreri ◽  
Andrew J. Johnston ◽  
Marek Czosnyka ◽  
Jonathan P. Coles ◽  
...  
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Intracranial Pressure ◽  
Flow Velocity ◽  
Blood Flow Velocity ◽  
Time Course ◽  
Cerebral Blood Flow Velocity ◽  
Brain Trauma

Suctioning and Cerebral Blood Flow

PEDIATRICS ◽  
1984 ◽  
Vol 73 (5) ◽  
pp. 737-737
Author(s):  
JEFFREY M. PERLMAN ◽  
JOSEPH J. VOLPE
Keyword(s):  
Blood Pressure ◽  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Intracranial Pressure ◽  
Flow Velocity ◽  
Arterial Blood Pressure ◽  
Blood Flow Velocity ◽  
Cerebral Blood Flow Velocity ◽  
Base Line ◽  
Arterial Blood

In Reply.— Marshall misread a critical piece of information in the text. His interpretation of the data would be correct, if the intracranial pressure, arterial blood pressure, and cerebral blood flow velocity changes occurred simultaneously. However, as we stated in the text (see section on "Temporal Features of Changes with Suctioning"), the intracranial pressure fell to base-line values immediately following suctioning, whereas the changes in arterial blood pressure and cerebral blood flow velocity occurred more slowly over an approximately two-minute period.

scholarly journals Therapeutic Indomethacin & Cerebral Blood Flow Velocity (CBFV): Time Course of Change

1999 ◽  
Vol 45 (4, Part 2 of 2) ◽  
pp. 66A-66A
Author(s):  
C Hammerman ◽  
J Glaser ◽  
M Kaplan ◽  
B Ferber ◽  
M S Schimmel ◽  
...  
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Flow Velocity ◽  
Blood Flow Velocity ◽  
Time Course ◽  
Cerebral Blood Flow Velocity

Suctioning in the Preterm Infant: Effects on Cerebral Blood Flow Velocity, Intracranial Pressure, and Arterial Blood Pressure

PEDIATRICS ◽  
1983 ◽  
Vol 72 (3) ◽  
pp. 329-334 ◽  
Author(s):  
Jeffrey M. Perlman ◽  
Joseph J. Volpe
Keyword(s):  
Blood Pressure ◽  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Intracranial Pressure ◽  
Preterm Infant ◽  
Flow Velocity ◽  
Blood Flow Velocity ◽  
Cerebral Blood Flow Velocity ◽  
Systemic Hemodynamic ◽  
Arterial Blood

The relationship of suctioning to changes in the cerebral circulation was studied in 35 premature newborn infants. The objectives of the study were to determine whether important alterations occur in cerebral hemodynamics with suctioning and whether such alterations relate to systemic hemodynamic events. A transcutaneous Doppler technique was used to measure blood flow velocity in the anterior cerebral arteries. A prominent increase in cerebral blood flow velocity was documented in nearly all patients. Accompanying the increase in cerebral flow velocity was a marked increase in blood pressure; thus, the increased cerebral flow velocity appeared to reflect directly changes in systemic hemodynamic events. Also accompanying the increase in cerebral flow velocity was a marked increase in intracranial pressure. These data suggest potentially deleterious effects of suctioning in the preterm infant at risk for the occurrence of intraventricular hemorrhage and raise questions regarding the advisability of routine suctioning of such infants.

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