An appraisal of blood salvage techniques in vascular and cardiac operations

Area of Science:

• Cardiovascular Surgery
• Transfusion Medicine

Background:

• Cardiac surgery often necessitates blood transfusions.
• Homologous blood transfusions carry inherent risks.

Purpose of the Study:

• To compare the efficacy of intraoperative blood salvage and reinfusion versus traditional homologous blood use in cardiac operations.
• To evaluate the impact of blood salvage on transfusion requirements and patient outcomes.

Main Methods:

• Three patient groups were studied: Group 1 (homologous blood only), Group 2 (intraoperative and postoperative salvage), and Group 3 (intraoperative and continuous postoperative salvage).
• Transfusion volumes, hospital stays, blood chemistry, and costs were analyzed.
• Red blood cell (RBC) survival was assessed in Group 3.

Main Results:

• Patients undergoing blood salvage (Groups 2 and 3) required significantly less whole blood and packed RBCs compared to Group 1.
• Average reductions were approximately one-third for whole blood and one-fourth for packed RBCs.
• Hospital stays, blood chemistry, and costs remained comparable across all groups.

Conclusions:

• Intraoperative blood salvage and reinfusion is a safe and practical method for reducing homologous blood use in cardiac surgery.
• Available technology supports the effective implementation of blood salvage techniques.
• This approach offers substantial savings in blood product utilization without compromising patient outcomes or increasing costs.