Description

Dhawan et al developed a score for evaluating a patient with Wilson's disease and fulminant hepatitis. This is a revision to the modified score of Nazer et al. The authors are from King's College Hospital in London.


 

Patient selection: a child with Wilson's disease and fulminant hepatitis

 

Parameters:

(1) serum total bilirubin in µmol/L

(2) serum AST in IU/L

(3) INR (International Normalized Ratio)

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

(5) serum albumin in g/L

 

Parameter

Finding

Points

serum total bilirubin

<= 100 µmol/L

0

 

101 to 150 µmol/L

1

 

151 to 200 µmol/L

2

 

201 to 300 µmol/L

3

 

> 300

4

serum AST

<= 100

0

 

101 to 150 IU/L

1

 

151 to 300 IU/L

2

 

301 to 400 IU/L

3

 

> 400 IU/L

4

INR

< 1.3

0

 

1.3 to 1.6

1

 

1.7 to 1.9

2

 

2.0 to 2.4

3

 

> 2.4

4

white blood cell count

<= 6.7

0

 

6.8 to 8.3

1

 

8.4 to 10.3

2

 

10.4 to 15.3

3

 

> 15.3

4

serum albumin

> 44 g/L

0

 

34 to 44 g/L

1

 

25 to 33 g/L

2

 

21 to 24 g/L

3

 

< 21 g/L

4

 

where:

• The changes are assumed to be due to the liver disease and not another cause.

 

total score =

= SUM(points for all 5 parameters)

 

Interpretation:

• minimum score: 0

• maximum score: 20

• The higher the score the more severe the liver disease.

• A score >= 11 indicates a high risk of mortality without a liver transplantation.

 

Performance:

• A score >= 11 had a sensitivity of 93% and specificity of 97%. The positive predictive value was 92% and the negative predictive value was 97%.

 


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