Perfusion

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perfusion

[pər′fyü·zhən]
(physiology)
The pumping of a fluid through a tissue or organ by way of an artery.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Perfusion

 

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.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Coronary perfusion pressure and the return of spontaneous circulation in human cardiopulmonary resuscitation.
Choi et al., "Computational analysis of the effect of the type of LVAD flow on coronary perfusion and ventricular afterload," Journal of Physiological Sciences, vol.
Caption: Figure 2: (a) Flow-dependent coronary perfusion pressure and (b) Flow- dependent left ventricular pressure.
Level of NOS in coronary perfusion effluents was determined using an NOS assay kit (Nanjing Jiancheng Bioengineering Institute, Nanjing, China) with a spectrophotometer (Bio-RAD, USA) at 530 nm according to manufacturer's instructions with modifications as described by Ma et al.
Coronary perfusion pressure was measured by attaching the side arm of the aortic cannula to a pressure transducer (Isotec, Hugo Sachs Electronic, March-Hugstetten, Germany).
However, the absence of a decrease in BP and the maintenance of basal coronary perfusion pressure did not significantly alter the occurrence of vascular adaptations to ET.
Monitor the patient closely with end-tidal capnography, Proper compressions restore cerebral and coronary perfusion. Sustained coronary perfusion pres sure is critical to successful defibrillation.
Ischemia induced during stress protocols for echocardiography or myocardial perfusion imaging (MPI) indicates impaired coronary perfusion in the face of increased oxygen demand.
Early CPR, such as to restore coronary perfusion pressure and myocardial blood flow, delays onset of ischaemic myocardial injury and facilitates defibrillation (12).
Secondarily, IABP improves cardiac output, increases coronary perfusion pressures, increases systemic perfusion, reduces mitral regurgitation and reduces afterload, which will subsequently decrease left ventricular workload.
The coronary perfusion pressure (CPP) was monitored with the P23Db Statham transducer connected to a sidearm of an aortic perfusion catheter.

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