scholarly journals ACID-BASE CHANGES IN CEREBROSPINAL FLUID AND BLOOD, AND BLOOD VOLUME CHANGES FOLLOWING PROLONGED HYPERVENTILATION IN MAN

1974 ◽  
Vol 46 (5) ◽  
pp. 348-357 ◽  
Author(s):  
M. STIG CHRISTENSEN
Keyword(s):  
Cerebrospinal Fluid ◽  
Blood Volume ◽  
Volume Changes ◽  
Acid Base

scholarly journals Haemodynamic, acid–base and blood volume changes during prolonged low pressure pneumoperitoneum in rabbits

2006 ◽  
Vol 96 (5) ◽  
pp. 563-568 ◽  
Author(s):  
R. Sümpelmann ◽  
T. Schuerholz ◽  
G. Marx ◽  
D. Härtel ◽  
H. Hecker ◽  
...  
Keyword(s):  
Blood Volume ◽  
Low Pressure ◽  
Volume Changes ◽  
Acid Base

Acute hemorrhage in dogs: construction and validation of models to quantify blood loss

1993 ◽  
Vol 74 (2) ◽  
pp. 510-519 ◽  
Author(s):  
Y. Waisman ◽  
P. Q. Eichacker ◽  
S. M. Banks ◽  
W. D. Hoffman ◽  
T. J. MacVittie ◽  
...  
Keyword(s):  
Blood Loss ◽  
Blood Volume ◽  
Linear Regression Analysis ◽  
Base Deficit ◽  
Prediction Errors ◽  
Volume Changes ◽  
Acid Base ◽  
Acute Hemorrhage ◽  
Base Parameters ◽  
Analysis Models

We examined the ability of commonly used clinical parameters to quantify acute hemorrhage in dogs. Eight animals were bled 40 ml/kg body wt over 100 min. Ten hemodynamic and 20 blood laboratory parameters were obtained every 10 min to construct, with use of linear regression analysis, models that quantify blood loss. During model construction, the best indicator of quantity of hemorrhage was arterial base deficit [ABD; coefficient of variation (CV) 35%]. This model was more accurate (P < 0.05) than 27 others (CV range 43 to 63%) and similar to systolic (CV 40%) and mean (CV 40%) arterial pressures. In validation studies in 10 additional animals, our best models based on ABD and systolic and mean arterial pressures each unexpectedly showed a significant (P < 0.05) decrease in accuracy (CV 86, 57, and 60%, respectively) attributable to large baseline (before hemorrhage) variability among animals. To eliminate this variability, models based on changes from baseline measurements were investigated. The best predictor of change in blood volume was change in ABD (CV 27%). This model was significantly (P < 0.05) more accurate than any of 27 others (CV range 36 to 65%) and similar to change in venous base deficit and venous pH (each CV 31%). When validated, acid-base models such as ABD, venous pH, and arterial bicarbonate were the best predictors of volume change (CV range 28 to 40%). With the use of multivariate analysis, pairwise combinations of single parameter models (n = 465) improved prediction errors only minimally. In summary, most commonly used hemodynamic and blood indexes could not be validated as accurate measurements in quantifying hemorrhage. In contrast, changes in acid-base parameters were validated as moderately accurate predictors of blood volume changes and therefore may have utility in the assessment of patients with ongoing hemorrhage.

Prediction of Solute Kinetics, Acid-Base Status, and Blood Volume Changes During Profiled Hemodialysis

10.1114/1.245 ◽  
2000 ◽  
Vol 28 (2) ◽  
pp. 204-216 ◽  
Author(s):  
M. Ursino ◽  
L. Colí ◽  
C. Brighenti ◽  
L. Chiari ◽  
A. De Pascalis ◽  
...  
Keyword(s):  
Blood Volume ◽  
Volume Changes ◽  
Acid Base ◽  
Acid Base Status

Acid-Base Balance in Cerebrospinal Fluid

1965 ◽  
Vol 12 (5) ◽  
pp. 479-496 ◽  
Author(s):  
J. B. POSNER ◽  
A. G. SWANSON ◽  
F. PLUM
Keyword(s):  
Cerebrospinal Fluid ◽  
Acid Base Balance ◽  
Acid Base ◽  
Base Balance

Early MRI blood volume changes in constrictor muscles correlate with post-radiation dysphagia

2020 ◽  
Author(s):  
Michelle L. Mierzwa ◽  
Laila A. Gharzai ◽  
Pin Li ◽  
Joel R. Wilkie ◽  
Peter G. Hawkins ◽  
...  
Keyword(s):  
Blood Volume ◽  
Volume Changes ◽  
Post Radiation

An Electronic Method of Detecting Blood Volume Changes

1965 ◽  
Vol 26 (2) ◽  
pp. 199-203 ◽  
Author(s):  
Rex J. Underwood ◽  
David Gowing
Keyword(s):  
Blood Volume ◽  
Volume Changes ◽  
Electronic Method

Regulation of Acid-Base Equilibrium of Cerebrospinal Fluid

1983 ◽  
pp. 25-42 ◽  
Author(s):  
Isidoor R. Leusen ◽  
Jaak J. Weyne ◽  
Gerard M. Demeester
Keyword(s):  
Cerebrospinal Fluid ◽  
Acid Base ◽  
Base Equilibrium ◽  
Acid Base Equilibrium
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