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Critical Risk Evaluation by Early Keys (CREEK) Score of Stachon et al for Predicting Mortality for a Patient in the Medical Intensive Care Unit (MICU)

Purpose: To predict mortality for a patient in the medical ICU using the Critical Risk Evaluation by Early Keys (CREEK) score of Stachon et al.

Description

Stachon et al developed the Critical Risk Evaluation by Early Keys (CREEK) Score for predicting mortality for a patient in the medical intensive care unit. This can help to identify a patient who may benefit from more aggressive management (versus a patient who is up the CREEK without a paddle). The authors are from Ruhr University in Bochum, Germany.


Parameters:

(1) ALT in IU/L

(2) total cholesterol in mg/dL

(3) serum creatinine in mg/dL

(4) white blood cell count in 10^9/L

(5) serum sodium in mmol/L

(6) thrombocytosis

(7) thrombocytopenia

(8) BUN in mg/dL

(9) age in years

 

Parameter

Finding

Points

ALT in IU/L

ALT in IU/L

LN(ALT)

cholesterol

cholesterol in mg/dL

ABS((cholesterol) - 225)

creatinine

<= 1.2 mg/dL

0

 

> 1.2 mg/dL

1

WBC

as multiple of 10^9/L

ABS((WBC) - 7.5)

sodium

>= 131 mmol/L

0

 

< 131 mmol/L

1

thrombocytosis

<= 350 * 10^9/L

0

 

> 350 * 10^9/L

1

thrombocytopenia

>= 150 * 10^9/L

0

 

100 to 149 * 10^9/L

1

 

50 to 99 * 10^9/L

2

 

< 50 * 10^9/L

3

BUN

<11 mg/dL

0

 

11 to 20 mg/dL

1

 

21 to 30 mg/dL

2

 

> 30 mg/dL

3

age

age in years

(years)

 

where:

• Several of the parameters are measures of organ failure.

 

X =

= (0.3942 * (points for ALT)) + (0.00999 * (points for cholesterol)) + (0.8133 * (points for creatinine)) + (0.0616 * (points for WBC count)) + (1.0227 * (points for sodium)) + (1.1881 * (points for thrombocytosis)) + (0.7783 * (points for thrombocytopenia)) + (0.3831 * (points for BUN)) + (0.0422 * (points for age)) - 8.6435

 

mortality risk =

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


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Specialty

Objective

ICD-10