Reduction of blood usage in open heart surgery

Area of Science:

• Cardiovascular Surgery
• Anesthesiology
• Transfusion Medicine

Background:

• Open-heart surgery necessitates significant blood management due to potential for substantial blood loss.
• Traditional transfusion practices can lead to increased risks and costs.
• Developing effective blood-conserving strategies is crucial for patient outcomes and resource optimization.

Purpose of the Study:

• To evaluate the efficacy of comprehensive blood-conserving methods in adult patients undergoing open-heart surgery.
• To determine the feasibility of minimizing allogeneic blood transfusions in this patient population.
• To assess patient tolerance and recovery with lower intraoperative and postoperative hematocrit levels.

Main Methods:

• Employed a combination of blood conservation techniques: hemodilution, autologous transfusion, intraoperative blood salvage, and meticulous surgical technique to prevent blood loss.
• Managed postoperative anemia proactively.
• Studied a cohort of 142 adult patients undergoing open-heart procedures.

Main Results:

• An average of 2.66 units of blood were transfused per patient during their hospital stay.
• A significant proportion of patients (20 out of 142) received no blood transfusions at all.
• Patients tolerated removal from cardiopulmonary bypass with hematocrit levels in the high teens to low twenties, and showed good postoperative progress with hematocrit readings of 22-25%.

Conclusions:

• Comprehensive blood conservation strategies are highly effective in reducing the need for allogeneic blood transfusions during open-heart surgery.
• Patients can achieve favorable clinical outcomes despite lower hematocrit levels during and after cardiopulmonary bypass.
• These methods offer a viable approach to minimize transfusion-related risks and optimize blood resource utilization in cardiac surgery.