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Preoperative Risk Model of Schumacher et al for Intraoperative Transfusion Requirements for a Patient Undergoing Liver Transplant

Description

Schumacher et al identified preoperative risk factors for a patient undergoing liver transplantation. This can help identify a patient who may have greater intraoperative transfusion requirements. The authors are from Hannover Medical School in Germany.


Patient selection: liver transplant

 

Parameters:

(1) leukocyte count per microliter

(2) platelet count per microliter

(3) serum creatinine concentration in µmol/L

 

Parameter

Finding

Points

leukocyte count

<= 5,200 per µL

0

 

> 5,200 per µL

1

platelet count

>= 91,000 per µL

0

 

< 91,000 per µL

1

serum creatinine

< 77 µmol/L

0

 

>= 77 µmol/L

1

 

total score =

= SUM(points for all 3 parameters)

 

Interpretation:

• minimum score: 0

• maximum score: 3

• A score of 0 or 1 was low risk. A score of 2 or 3 was high risk.

 

 

Low Risk

High Risk

mean RBC transfusion during surgery

6.8

9.3

mean FFP transfusion during surgery

8.6

10.2

mean platelet concentrate transfusion

0.9

1.4

90-day survival

78%

45%

 


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