Intraoperative cell salvage in revision hip surgery

Area of Science:

• Orthopaedic Surgery
• Transfusion Medicine
• Patient Blood Management

Background:

• Allogeneic blood is a limited resource with inherent risks.
• Intraoperative cell salvage (ICS) is a potential method to reduce allogeneic transfusions in orthopaedic procedures.
• Concerns exist regarding the efficacy and cost-effectiveness of ICS.

Purpose of the Study:

• To evaluate the effectiveness of ICS in reducing allogeneic blood transfusions during revision hip arthroplasty.
• To compare transfusion rates and volumes in patients undergoing revision hip surgery with and without ICS.

Main Methods:

• Retrospective audit of patients undergoing revision hip arthroplasty at Southern General Hospital (SGH) between 2008-2010 who received ICS.
• Comparison with a historical SGH cohort (2006-2008) and a pre-2005 control group without ICS.
• Data collected included hemoglobin fall, re-infused blood volume, and postoperative allogeneic transfusion rates.

Main Results:

• A 55% reduction in postoperative allogeneic transfusion proportion was observed in the 2008-2010 ICS cohort compared to the control group (p < 0.001).
• A 40% reduction was noted compared to the previous ICS group (p < 0.001).
• Mean units transfused per patient decreased from 3.5 (control) to 1.4 (previous ICS) to 0.8 (2008-2010 ICS cohort).

Conclusions:

• Intraoperative cell salvage is effective in reducing the rate and volume of postoperative allogeneic transfusions in revision hip surgery.
• Further research is required to assess the impact of anesthetic techniques on transfusion outcomes.
• ICS demonstrates value in patient blood management for complex hip revision procedures.