Increased Alveolar-Arterial Oxygen Gradients During Treadmill Walking at Simulated High Altitude1

2015 ◽  
pp. 41-48 ◽  
Author(s):  
J. T. Reeves ◽  
F. Daoud
Keyword(s):  
Treadmill Walking ◽  
Arterial Oxygen ◽  
Oxygen Gradients

Alveolar-arterial oxygen gradients in elderly patients with suspected pulmonary embolism

1993 ◽  
Vol 22 (7) ◽  
pp. 1177-1181 ◽  
Author(s):  
Jeffrey S Jones ◽  
N VanDeelen ◽  
Lynn White ◽  
James Dougherty
Keyword(s):  
Pulmonary Embolism ◽  
Elderly Patients ◽  
Arterial Oxygen ◽  
Suspected Pulmonary Embolism ◽  
Oxygen Gradients

Alveolar-arterial oxygen gradients before extracorporeal life support for severe pediatric respiratory failure

1994 ◽  
Vol 22 (4) ◽  
pp. 620-625 ◽  
Author(s):  
FRANK W. MOLER ◽  
JOHN M. PALMISANO ◽  
JOSEPH R. CUSTER ◽  
JON N. MELIONES ◽  
ROBERT H. BARTLETT
Keyword(s):  
Respiratory Failure ◽  
Life Support ◽  
Extracorporeal Life Support ◽  
Arterial Oxygen ◽  
Oxygen Gradients

Alveolar-Arterial oxygen gradients versus the neonatal pulmonary insufficiency index for prediction of mortality in ECMO candidates

1984 ◽  
Vol 19 (4) ◽  
pp. 380-384 ◽  
Author(s):  
Thomas M. Krummel ◽  
Lazar J. Greenfield ◽  
Barry V. Kirkpatrick ◽  
Dawn G. Mueller ◽  
Kathryn W. Kerkering ◽  
...  
Keyword(s):  
Arterial Oxygen ◽  
Pulmonary Insufficiency ◽  
Prediction Of Mortality ◽  
Oxygen Gradients

scholarly journals Alveolar-arterial oxygen gradients after open intracardiac surgery

1966 ◽  
Vol 51 (5) ◽  
pp. 609-615 ◽  
Author(s):  
Alexander S. Geha ◽  
Alan D. Sessler ◽  
John W. Kirklin
Keyword(s):  
Arterial Oxygen ◽  
Oxygen Gradients ◽  
Intracardiac Surgery

Protection with Antibody to Tumor Necrosis Factor Differs with Similarly Lethal Escherichia coli  versus Staphylococcus aureus  Pneumonia in Rats

2003 ◽  
Vol 99 (1) ◽  
pp. 81-89 ◽  
Author(s):  
Waheedullah Karzai ◽  
Xizhong Cui ◽  
Bjoern Mehlhorn ◽  
Eberhard Straube ◽  
Thomas Hartung ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Tumor Necrosis Factor ◽  
Interleukin 6 ◽  
Tumor Necrosis ◽  
Lung Lavage ◽  
Arterial Oxygen ◽  
E Coli ◽  
Oxygen Gradients ◽  
Necrosis Factor

Background Differing factors may alter the effects of antibody to tumor necrosis factor (TNF) in infection and sepsis. The authors tested whether bacteria type or treatment route alters antibody to TNF in a rat model of bacterial pneumonia. Methods Rats (n = 231) received similarly lethal doses of either intratracheal Escherichia coli or Staphylococcus aureus followed by treatment with either intratracheal or intraperitoneal antibody to TNF or control serum. Animals received antibiotics (cefotiam daily dose, 100 mg/kg) starting 4 h after inoculation and were studied for up to 96 h. Results Compared with S. aureus, E. coli increased serum TNF and interleukin-6 concentrations, lung lavage TNF concentrations, neutrophil counts, and alveolar-to-arterial oxygen gradients and decreased circulating neutrophils and lymphocytes (P > or = 0.05 for all). Compared with controls, with both bacteria, except for lung lavage TNF concentrations (which decreased with intratracheal but not with intraperitoneal antibody to TNF), treatment route did not alter the effects of antibody to TNF on any parameter (P = not significant for all). Antibody to TNF reduced mortality rates (relative risk of death +/- SEM) with both E. coli (-1.6 +/- 0.6; P = 0.006) and S. aureus (-0.5 +/- 0.04; P = 0.185), but these reductions were greater with E. coli than with S. aureus in a trend approaching statistical significance (P = 0.09). Compared with controls, similarly (P = not significant) with both bacteria, antibody to TNF decreased lung lavage and tissue bacteria concentrations (both P < 0.05) and serum TNF concentration (P < 0.09) and increased circulating neutrophils and lymphocytes (both P < or = 0.01). Compared with S. aureus, with E. coli antibody to TNF decreased alveolar-to-arterial oxygen gradients (P = 0.04) and increased serum interleukin-6 concentrations (P = 0.003). Conclusion Antibody to TNF improved host defense and survival rates with both lethal E. coli and S. aureus pneumonia, but protection was greater with E. coli, where TNF concentrations were higher than with S. aureus. The efficacy of antiinflammatory agents in sepsis may be altered by bacteria type.

Alveolar-arterial oxygen gradients

1980 ◽  
Vol 9 (12) ◽  
pp. 648
Author(s):  
Barry E. Brenner
Keyword(s):  
Arterial Oxygen ◽  
Oxygen Gradients
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