Cardiac Surgery Transfusion Risk Understanding Scoring Tool (TRUST)

Description

Alghamdi et al developed the Transfusion Risk Understanding Scoring Tool (TRUST) for identifying cardiac surgery patients who may need blood transfusion. This can help identify patients who may be candidates for preventive measures to reduce the need for transfusion. The authors are from the University of Toronto.

Parameters:

(1) age

(2) gender

(3) preoperative hemoglobin

(4) body weight in kilograms

(5) elective surgery

(6) serum creatinine

(7) history of previous cardiac surgery

(8) surgical task (isolated vs nonisolated)

Parameter	Finding	Points
age of the patient in years	<= 65 years	0
	> 65 years	1
gender	male	0
	female	1
hemoglobin	>= 13.5 g/dL	0
	< 13.5 g/dL	1
body weight in kilograms	>=77 kilograms	0
	< 77 grams	1
elective surgery	yes	0
	no (nonelective)	1
serum creatinine	<= 1.36 mg/dL (120 µmol/L)	0
	> 1.36 mg/dL (120 µmol/L)	1
history of previous cardiac surgery	no	0
	yes	1
surgical task	isolated	0
	nonisolated (CABG + valve replacement, etc	1

total score =

= SUM(points for all 8 parameters)

Interpretation:

• minimum score: 0

• maximum score: 8

• The higher the score the greater the probability of requiring a blood transfusion.

Total Score	Risk Group	Probability of Transfusion
0	baseline risk	< 20%
1	low risk	20 - 39%
2	intermediate risk	40 - 59%
3	high risk	60 - 79%
4 to 8	very high risk	80 - 100%

X =

= (0.8377 * (total score)) - 1.9503

probability of blood transfusion =

= 1 / (1 + EXP((-1) * X))

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Description

Specialty

Objective

ICD-10

Cardiac Surgery Patient Transfusion Risk Understanding Scoring Tool (TRUST)

Purpose: To evaluate a cardiac surgery patient for the risk of needing a blood transfusion using the Transfusion Risk Understanding Scoring Tool (TRUST).

Description

Specialty

Objective

ICD-10