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The pumping of a fluid through a tissue or organ by way of an artery.



a method of passing physiological solutions, blood, blood substitutes, or other fluids through the blood vessels of an organ, a part of the body, or the entire body. Perfusion may be performed on organs completely removed from the body or on organs within the body but isolated from the general vascular system. Widely used in experimental physiology, it permits preservation of the vital activities of organs for a certain period, enabling the study of organ functions and of the effect of hormones, mediators, enzymes, and medicinal substances on physiological systems and the entire body. The method is used in various branches of surgery, including transplantation of organs and tissues. Perfusion of the entire body is used, for example, during heart surgery.

The term “perfusion” also designates the supplying of blood to organs of the body under natural conditions (for example, perfusion of the kidneys, brain, or other organs), which is determined by the state of cardiac activity and local vascular tonus.

References in periodicals archive ?
Therefore, CO was able to adequately perfuse the muscle mass of the arms even in those with larger muscle mass as exercise increased.
Approximately 40 % of fetal cardiac output is devoted to perfuse the placental exchange area.
As a nurse, my job was to drive the blood pressure high enough to perfuse the brain while protecting other vital organs like the heart, lungs, and kidneys.
Blood enters these tissues through vessels called arteries and perfuse to the tissue cells in blood capillaries.
2], EDHF, sGC and HO to perfuse hearts before TGS (50 mg/l) treatment and examined if inhibition of these mediators could block the vasodilative effect of TGS.
Possible complications of the external neck approach include perfuse bleeding, vocal fold deformation, voice impairment and aspiration, nerve damage (especially to the vagus nerve compartments), the development of airway stenosis, and an unsatisfactory aesthetic outcome.
The flap was allowed to perfuse for a brief period of time, usually 20 minutes, before the venous anastomosis was completed, again in end-to-end fashion.
To perfuse the fetal side, the artery and vein of an intact cotyledon were cannulated.
After a short delay of a second or so to allow arterial blood that is tagged in this fashion to perfuse throughout the brain, images are acquired from the imaging slab.
52) They note that under DCD protocols "managing death" is permitted with the objective of preserving organs, coupled with the fact that some anti-coagulants used to perfuse organs could hasten a donor's death.
Eventually, the leg circulation is unable to adequately perfuse and oxygenate metabolically active leg muscles.
Surface water drainage networks perfuse and integrate the landscape, across the whole planet, but they are missing from all global carbon cycling, even from the IPCC (Intergovernmental Panel on Climate Change) reports," said Battin.