Three-point transfusion risk score in hepatectomy

Area of Science:

• Hepatobiliary Surgery
• Transfusion Medicine
• Surgical Risk Assessment

Background:

• Perioperative red blood cell transfusions are common in hepatectomy, affecting up to 23% of patients.
• Existing transfusion risk scores aim to predict this risk.
• Evaluating these scores and developing a simpler alternative is crucial for clinical practice.

Purpose of the Study:

• To evaluate the performance of existing transfusion risk scores in a multicentre hepatectomy cohort.
• To compare these scores with a newly developed simplified transfusion risk score.
• To determine if a simplified score can accurately predict transfusion risk without sacrificing predictive ability.

Main Methods:

• A multicentre database of 1287 hepatectomy patients (2008-2012) was analyzed.
• External validity of existing scores was assessed using discrimination (AUC) and calibration.
• A novel three-point risk score was developed using common variables and its performance evaluated.

Main Results:

• 341 patients (26.5%) received red blood cell transfusions.
• Existing scores showed similar discriminative ability (AUC 0.66-0.68) with good calibration.
• The new three-point score (hemoglobin ≤12.5 g/dL, primary liver malignancy, major resection) demonstrated comparable performance (AUC 0.66).

Conclusions:

• A simplified three-point transfusion risk score effectively assesses perioperative transfusion risk in hepatectomy.
• This score offers a practical tool for clinicians, simplifying risk assessment.
• The simplified score achieves similar predictive accuracy to existing, more complex models.