scholarly journals Regional distribution of cardiac output in young lambs: effect of cold exposure and treatment with catecholamines

1972 ◽  
Vol 220 (3) ◽  
pp. 511-528 ◽  
Author(s):  
G. Alexander ◽  
A. W. Bell ◽  
B. P. Setchell
Keyword(s):  
Cardiac Output ◽  
Cold Exposure ◽  
Regional Distribution ◽  
Distribution Of Cardiac Output

DISTRIBUTION OF BLOOD FLOW IN COLD STRESSED PIGLETS

1979 ◽  
Vol 59 (4) ◽  
pp. 721-726 ◽  
Author(s):  
P. E. V. WILLIAMS ◽  
R. O. PARKER ◽  
B. A. YOUNG ◽  
F. X. AHERNE
Keyword(s):  
Blood Flow ◽  
Cardiac Output ◽  
Cold Stress ◽  
Rectal Temperature ◽  
Cold Exposure ◽  
Alimentary Tract ◽  
Distribution Of Cardiac Output

Radioactive ruthenium labelled microspheres 15 ± 3 μm in diameter were used to determine distribution of cardiac output in unfed control (35 °C) and unfed cold stressed (5 °C) piglets 3.5 h of age. The cold stress produced an average 7.1 °C drop in rectal temperature and a redistribution of blood flow. In cold exposed piglets the adrenal fraction of cardiac output was significantly (P < 0.05) lower: 0.56% in the control compared with 0.29% in the cold exposed piglets; however, the relative blood flow to the adrenals was higher than for other tissues. The fractions of cardiac output reaching the psoas and biceps muscles increased (P < 0.05) by 148 and 260%, respectively, during cold exposure, while that reaching the heart, brain, alimentary tract, skin and fat was not significantly (P > 0.05) affected by cold exposure.

The Distribution of Cardiac Output in the Anaesthetized Spontaneously Hypertensive Rat

1978 ◽  
Vol 55 (3) ◽  
pp. 317-320 ◽  
Author(s):  
C. R. Hiley ◽  
M. S. Yates
Keyword(s):  
Skeletal Muscle ◽  
Blood Flow ◽  
Cardiac Output ◽  
Spontaneously Hypertensive Rats ◽  
Spontaneously Hypertensive Rat ◽  
Regional Distribution ◽  
Tissue Blood Flow ◽  
Hypertensive Rats ◽  
Spontaneously Hypertensive ◽  
Distribution Of Cardiac Output

1. Radioactive 15 μm and 50 μm diameter microspheres were used to determine cardiac output, its regional distribution and tissue blood flow in adult normotensive Wistar and Okamoto spontaneously hypertensive rats. 2. Cardiac output in the spontaneously hypertensive rats was the same as in Wistar normotensive rats, but its distribution in the hypertensive rats appeared to differ: there was a significant increase in the proportion of microspheres trapped in the liver whereas fewer were found in the gastrointestinal tract. This indicates that a greater fraction of the cardiac output passes along the hepatic artery and less through the splanchnic bed. 3. Blood flow in skin and skeletal muscle in spontaneously hypertensive rats was approximately 50% of that in Wistar normotensive rats.

The effects of acute and chronic morphine on regional distribution of cardiac output in brain

1985 ◽  
Vol 41 (1) ◽  
pp. 78-80 ◽  
Author(s):  
W. R. Law ◽  
R. F. Ritzmann ◽  
J. M. Lee ◽  
M. A. Kapin ◽  
J. L. Ferguson
Keyword(s):  
Cardiac Output ◽  
Regional Distribution ◽  
Chronic Morphine ◽  
Distribution Of Cardiac Output
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