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Seminars in Cardiothoracic and Vascular Anesthesia
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*Blood Transfusion and Donation
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Perfusion Approaches to Blood Conservation

Christine McKay, BSc, CPC, CCP

Clinical Perfusion Services, London Health Sciences Centre, London, Ontario, Canada, Chris.Mckay{at}lhsc.on.ca

There are several perfusion techniques that can contribute to blood conservation. Minimizing existing circuit components, using mini-circuits and the maneuver of retrograde autologous priming can be considered steps in prime reduction. Microplegia systems may also reduce systemic as well as cardiac hemodilutional effects. Cell savers can scavenge shed blood, wash the red cells, and may return the red cells to the patient in a concentrated form. When a patient is already hemodiluted, ultrafiltation can be used to hemoconcentrate the patient and to drive their existing hemoglobin levels up. Ultimately, the optimal form of blood conservation comes from team-work, communication, and a combination of efforts.

Key Words: perfusion • blood conservation • prime reduction • hemoconcentration • microplegia

Seminars in Cardiothoracic and Vascular Anesthesia, Vol. 11, No. 4, 252-255 (2007)
DOI: 10.1177/1089253207311158
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