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Minimizing perioperative blood loss and transfusions in children

[Réduire les pertes sanguines et les besoins transfusionnels en chirurgie pédiatrique]

Joanne Guay, MD FRCPC^*, Philippe de Moerloose, MD and Dominique Lasne, MD

^* From Departments of Anesthesiology, Maisonneuve-Rosemont Hospital, University of Montreal, Montreal, Quebec, Canada;
University Hospital of Geneva,Geneva, Switzerland; and the
Laboratoire d’hématologie,Hôpital Necker, Paris, France.

Address correspondence to: Dr. Joanne Guay, Department of Anesthesiology, Maisonneuve-Rosemont Hospital, 5415 L’Assomption blvd, Montreal, Quebec H1T 2M4, Canada. Phone: 514-252-3426; Fax: 514-252-3542; E-mail: joanne.guay{at}umontreal.ca

Purpose: To summarize the physiology and pathophysiology relevant to perioperative blood loss in children. Strategies to reduce blood losses are reviewed.

Methods: The literature was reviewed using the electronic library PUBMED and the Cochrane Database of Systematic Reviews. Relevant studies published in English or French with an English abstract are included. The following keywords were used: children, blood transfusion, surgical blood loss, erythropoietin, autologous blood, red blood cell saver, normovolemic hemodilution, desmopressin, aminocaproic acid, tranexamic acid, aprotinin, cardiac surgery, liver transplantation and scoliosis surgery.

Main findings: For patients with idiopathic scoliosis, predonation with or without the addition of erythropoietin is a safe and effective way to avoid the use of allogenic blood products. For open heart procedures: whole blood of less than 48 hr is helpful for children of less than two years of age undergoing complex procedures; tranexamic acid may be helpful for cyanotic heart disease and, to a lesser degree, for reoperations; while anti-kallikrein blood levels of aprotinin may both reduce the need for allogenic blood transfusions and improve postoperative oxygenation in infants.

Conclusion: Reducing perioperative allogenic blood transfusions is possible in pediatric patients provided that prophylactic measures are adapted to age, disease and type of surgery.

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