NDLI: Contribution of Splanchnic and Musculocutaneous Vascular Compartments to the Formation of Blood Flow Volume in the Vena Cava Posterior during Catecholamine Treatment

Content Provider	Springer Nature Link
Author	Samoilenko, A. V. Yurov, A. Yu. Tkachenko, B. I.
Copyright Year	2011
Abstract	Studies by electromagnetic flowmetry in acute experiments on cats under conditions of the open thoracic cage and artificial ventilation of the lungs showed that 64% of venous return via the vena cava posterior was realized at the expense of the splanchnic and 36% due to the musculocutaneous vessels (abdominal basin of the caudal vein). Epinephrine (20 μg/kg) increased the contribution of the splanchnic venous blood flow to the increase in the blood flow in the vena cava posterior and reduced the contribution of the musculocutaneous veins throughout the entire duration of systemic reactions: 84% of the blood flow increase in the vena cava posterior was due to the splanchnic and just 16% due to the musculocutaneous blood flow. Norepinephrine (10 μg/kg) resulted in a phase-wise involvement of the studied compartments in blood flow increase in the vena cava posterior. During the initial period of systemic reactions (coinciding with the maximum systemic BP rise) the contribution of the musculocutaneous compartment was 13% higher, while later (by the time of the maximum elevation of venous blood flow in the studied compartments) the contribution of splanchnic veins predominated constituting 89% of venous blood flow in the vena cava posterior. These results indicate that venous blood flow increase in the splanchnic vessels largely determined the formation of changes in the vena cava posterior blood flow in response to catecholamines.
Starting Page	385
Ending Page	388
Page Count	4
File Format	PDF
ISSN	00074888
Journal	Bulletin of Experimental Biology and Medicine
Volume Number	151
Issue Number	4
e-ISSN	15738221
Language	English
Publisher	Springer US
Publisher Date	2011-08-17
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	vena cava posterior blood flow splanchnic and musculocutaneous venous blood flow catecholamines Laboratory Medicine Internal Medicine Pathology Biomedicine general Cell Biology
Content Type	Text
Resource Type	Article
Subject	Medicine Biochemistry, Genetics and Molecular Biology

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