Drugs Information Online
Drugs and diseases reference index

Drugs and diseases reference index
Search
EN

Definition of «Blood transfusion»

Blood transfusionBlood transfusionBlood transfusionBlood transfusion

Blood transfusion: The transfer of blood or blood components from one person (the donor) into the bloodstream of another person (the recipient). This may be done as a lifesaving maneuver to replace blood cells or blood products lost through bleeding. Transfusion of your own blood (autologous) is the safest method but requires advance planning and not all patients are eligible. Directed donor blood allows the patient to receive blood from known donors. Volunteer donor blood is usually most readily available and, when properly tested has a low incidence of adverse events. Blood conserving techniques are an important aspect of limiting transfusion requirements.

Blood transfusion and blood conservation are complementary activities that constitute the clinical arena of transfusion medicine. A review of transfusion medicine in The New England Journal of Medicine further concludes that:

  • The use of blood transfusion has declined, largely because of concern about the safety of the blood supply.
  • The presence now of a very safe blood supply suggests that outcomes need to be monitored to identify patients in whom transfusion may be underused (as well as overused).
  • No given level of hemoglobin can, it seems, be used as a universal threshold for transfusion.
  • Strategies to avoid blood transfusion will no longer be driven by the known risks, since they are now so low that no alternative is currently as safe as a blood transfusion.
  • Instead, blood conservation will be driven more by issues related to the costs and inventory of blood.

Samuel Pepys recorded the first blood transfusion in his celebrated Diary. On Nov. 14, 1666, Pepys wrote that Richard Lower of the Royal Society made the first direct blood transfusion from the artery of one dog to the vein of another. Mr. Lower used quills to convey the blood.

This feat was dependent upon the discovery made by William Harvey earlier that century of the course of blood in the circulation. Harvey announced his discovery to the College of Physicians in 1616 and published his treatise on it, entitled Exercitato anatomica de motu cordis et sanguinis in animalibus, in 1628.

Sources:

  1. LT Goodnough, ME Brecher, MH Kanter, and JP AuBuchon. Transfusion Medicine. New Engl J Med 1999; 340: 438-447; 525-533.
  2. S Pepys. Diary 1660-1669.

For More Information «Blood transfusion»

  • What is a blood transfusion?

    A blood transfusion is a safe procedure in which blood is given to you through an intravenous (IV) line in one of your blood vessels.

  • Blood Transfusion: Knowing Your Options

    Welcome to the Blood Transfusions: Knowing Your Options Web site. Blood transfusions are a critical part of everyday medical procedures and save millions of lives each ...

  • blood transfusion: Definition from Answers.com

    Library > Miscellaneous > Britannica Concise Encyclopedia Transfer of blood taken from one person into the circulation of another to restore blood volume, increase ...

  • Blood Transfusion Procedure and Blood Type Information by ...

    Learn about blood transfusion risks, and the types such as autologous (your own blood) and donor blood (someone else's blood) and what blood type might be best for your ...

  • Blood Transfusions

    More than 5 million people a year get blood transfusions in the United States. This article for teens explains why people need them and who donates the blood used.

Comment «Blood transfusion»