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Score of Huguier et al for Predicting the Probability of Common Duct Stones

Purpose: To evaluate a patient for common bile duct stones using the score of Huguier et al.

Description

Huguier et al developed a score for predicting the probability of common bile duct (CBD) stones in a patient. The score can help the surgeon to decide whether intraoperative cholangiography is indicated. The authors are from Hospital Tenon and Hospital Saint Louis of the University of Paris (VI and VII).


Parameters identified on multivariate analysis:

(1) age of the patient in years

(2) diameter of the common bile duct in mm

(3) diameter of gallstones

(4) previous history of biliary colic

(5) cholecystitis

 

Parameter

Finding

Points

diameter of common bile duct

<= 12 mm

0

 

> 12 mm

31.1

diameter of gallstones

>= 10 mm

0

 

< 10 mm

1.2

history of biliary colic

no

0

 

yes

1

cholecystitis

absent

0

 

present

0.7

 

where:

• I assume that the diameter of the common bile duct refers to the internal diameter.

 

total score =

= (0.04 * (age in years)) + SUM(points for the remaining 4 parameters)

 

Interpretation:

• minimum score: depends on age (in theory 0)

• maximum score: approximately 38

• The higher the score the greater the risk of the patient having common duct stones.

 

Total Score

Probability CBD Stones

< 3.5

2%

3.5 - 5.9

17%

> 5.9

81%

 


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Specialty

Objective

ICD-10