Presence and density of common bile duct microlithiasis in acute biliary pancreatitis

Table 1 System of Juniper and Burson for counting microlithiasis[4]

Number of crystals per one slide	Grading
< 10	+
10-25	++
25-40	+++
> 40	++++

Table 2 Demographic, clinical and biochemical data of all patients with no common bile duct stones on ERCP

		All cases
Number of patients		151
Sex (M:F)		49:102
Age (years) (-x±s)		53.9 (± 15.7)
Number of cases with gallbladder stones		101
Number of cases with prior cholecystectomy		50
Number of cases with Goodman’s criteria of		129
ABP present (at least 1 criterion)
Ciochemical values (range, mean and SD)	Bilirubin (μmol·L-1)	17-30654.57 (± 44.03)
	Alkaline phosphatase (IU·L-1)	57-556216.5 (± 115.3)
	Alanine transaminase (IU·L-1)	16-1335351.2 (± 252.8)

Normal levels of liver enzymes in our lab: -Bilirubin < 17 μmol·L^-1) -Alkaline phosphatase < 110 IU·L^-1) -ALT < 40 IU·L^-1)

Table 3 Demographic, clinical and biochemical features of patients in relation to the diagnosis of common bile duct microcrystals (Fischer’s s exact test or U Mann-Whitney’s test when needed)

Feature	Microcrystals present (n = 118)	Microcrystals absent (n = 33)	P
Women	91	11	0.066
Men	27	22	0.066
Age [years] (mean)	52.4	54.2	0.623
Gallbladder stones present	81	20	0.770
BMI (mean)	27.8	28.7	0.490
Number of cases with Goodman’s criteria of ABP present (at least 1 criterion)	106	23	0.670
Bilirubin [(mol·L-1)] (mean)	54.4	49.3	0.607
Alkaline phosphatase [IU·L-1]](mean)	213.7	178.9	0.148
Alanine transaminase [IU·L-1]] (mean)	350.4	383.4	0.577