exchange transfusion

ex·change transfusion iks-'chānj- n simultaneous withdrawal of the recipient's blood and transfusion with the donor's blood esp. in the treatment of erythroblastosis

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a technique for treating haemolytic disease in newborn infants. Using a syringe with a three-way tap, blood is withdrawn from the baby (via the umbilical vein), ejected, and replaced by an equal amount of donor blood compatible with the mother's blood, without detaching the syringe. By many repetitions of this exchange, red blood cells liable to be destroyed and bilirubin released from those already destroyed are removed, while keeping the baby's blood volume and number of red cells constant. Exchange transfusion can also be used in sickle-cell disease, as a temporary treatment during a crisis, or in neonatal jaundice.

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exsanguination transfusion repetitive withdrawal of small amounts of blood and replacement with donor blood, until a large proportion of the blood volume has been exchanged; used primarily in newborn infants with erythroblastosis fetalis and sometimes in patients with various other blood conditions. Called also replacement t. and substitution t.

Medical dictionary. 2011.

Look at other dictionaries:

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  • exchange transfusion — a technique for treating haemolytic disease in newborn infants. Using a syringe with a three way tap, blood is withdrawn from the baby (via the umbilical vein), ejected, and replaced by an equal amount of donor blood compatible with the mother s… …   The new mediacal dictionary

  • exchange transfusion — noun slow removal of a person s blood and its replacement with equal amounts of a donor s blood • Hypernyms: ↑transfusion, ↑blood transfusion …   Useful english dictionary

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  • transfusion — Transfer of blood or blood component from one individual (donor) to another individual (receptor). [L. transfundo, pp. fusus, to pour from one vessel to another] drip t. t. slow enough to measure by drops. exchange t. removal o …   Medical dictionary

  • Transfusion transmitted infection — A Transfusion transmitted infection (TTI) is a virus, parasite, or other potential pathogen that can be transmitted in donated blood through a transfusion to a recipient. The term is usually limited to known pathogens, but also sometimes includes …   Wikipedia

  • exchange — [c]/əksˈtʃeɪndʒ / (say uhks chaynj), /ɛk / (say ek ) verb (exchanged, exchanging) –verb (t) 1. to part with for some equivalent; give up (something) for something else. 2. to replace by another or something else; change for another: to exchange a …   Australian English dictionary

  • transfusion — (Roget s IV) n. Syn. transfer, transference, transmission, blood exchange, bleeding; see also exchange 1 , phlebotomy …   English dictionary for students

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