Blamey et al identified clinical and laboratory factors associated with gallstone pancreatitis. This can help separate patients with gallstones from those with nongallstone pancreatitis. The authors are from the Royal Infirmary and Glasgow University in Glasgow.
Parameters:
(1) gender
(2) age
(3) serum amylase
(4) serum ALT
(5) serum alkaline phosphatase
|
Parameter |
Finding |
Points |
|
gender |
male |
0 |
|
|
female |
1 |
|
age |
< 50 years of age |
0 |
|
|
>= 50 years of age |
1 |
|
serum amylase |
< 4,000 IU/L |
0 |
|
|
>= 4,000 IU/L |
1 |
|
serum ALT |
< 100 IU/L |
0 |
|
|
>= 100 IU/L |
1 |
|
serum alkaline phosphatase |
< 300 IU/L |
0 |
|
|
>= 300 IU/L |
1 |
simple score =
= SUM(points for the 5 risk factors)
Interpretation:
• minimum total score: 0
• maximum total score: 5
• The higher the score the greater the probability of gallstone pancreatitis.
|
number of risk factors |
Group A |
Prospective Group |
|
0 |
5% |
0% |
|
1 |
4% |
11% |
|
2 |
55% |
55% |
|
3 |
86% |
82% |
|
4 |
95% |
88% |
|
5 |
100% |
100% |
from Tables 3 and 5
Probability of Gallstones Based on Individual Risk Factors
|
Gender |
Age |
Amylase |
ALT |
Alk Phos |
Probability Gallstones |
|
0 |
0 |
0 |
0 |
0 |
0.02 |
|
0 |
0 |
0 |
0 |
1 |
0.08 |
|
0 |
0 |
0 |
1 |
0 |
0.10 |
|
0 |
0 |
0 |
1 |
1 |
0.34 |
|
0 |
0 |
1 |
0 |
0 |
0.06 |
|
0 |
0 |
1 |
0 |
1 |
0.24 |
|
0 |
0 |
1 |
1 |
0 |
0.29 |
|
0 |
0 |
1 |
1 |
1 |
0.66 |
|
0 |
1 |
0 |
0 |
0 |
0.19 |
|
0 |
1 |
0 |
0 |
1 |
0.52 |
|
0 |
1 |
0 |
1 |
0 |
0.58 |
|
0 |
1 |
0 |
1 |
1 |
0.87 |
|
0 |
1 |
1 |
0 |
0 |
0.46 |
|
0 |
1 |
1 |
0 |
1 |
0.80 |
|
0 |
1 |
1 |
1 |
0 |
0.84 |
|
0 |
1 |
1 |
1 |
1 |
0.96 |
|
1 |
0 |
0 |
0 |
0 |
0.16 |
|
1 |
0 |
0 |
0 |
1 |
0.48 |
|
1 |
0 |
0 |
1 |
0 |
0.54 |
|
1 |
0 |
0 |
1 |
1 |
0.85 |
|
1 |
0 |
1 |
0 |
0 |
0.42 |
|
1 |
0 |
1 |
0 |
1 |
0.77 |
|
1 |
0 |
1 |
1 |
0 |
0.81 |
|
1 |
0 |
1 |
1 |
1 |
0.95 |
|
1 |
1 |
0 |
0 |
0 |
0.72 |
|
1 |
1 |
0 |
0 |
1 |
0.92 |
|
1 |
1 |
0 |
1 |
0 |
0.94 |
|
1 |
1 |
0 |
1 |
1 |
0.99 |
|
1 |
1 |
1 |
0 |
0 |
0.90 |
|
1 |
1 |
1 |
0 |
1 |
0.98 |
|
1 |
1 |
1 |
1 |
0 |
0.98 |
|
1 |
1 |
1 |
1 |
1 |
0.996 |
from Table 2, page 576
Limitations:
• The laboratory methods (amylase, ALT and alkaline phosphatase) will usually be different between institutions and the cut-off points may need to be adjusted. The methods and reference ranges were not given.
Purpose: To evaluate a patient with acute pancreatitis for the probability of gallstone disease using the score of Blamey et al.
Specialty: Gastroenterology
Objective: severity, prognosis, stage
ICD-10: K85.1, K85.2,
