Early endoscopic ultrasonography in acute biliary pancreatitis: A prospective pilot study

Table 1 Characteristics of the 71 patients according to the level of risk for common bile duct stones

Patient features	Risk of common bile duct stones
	Low (n = 21; 29%)	Moderate (n = 26; 37%)	High (n = 24; 34%)
Age (yr, mean ± SD)	59 ± 17	59 ± 17	62 ± 18
Male, n (%)	9 (43)	12 (46)	13 (54)
Bilirubin (mg/dL, mean ± SD)	1.3 ± 0.5	2.1 ± 1.4	5.0 ± 1.7
AST (IU/mL, mean ± SD)	201 ± 186	232 ± 175	237 ± 237
ALT (IU/mL, mean ± SD)	169 ± 182	237 ± 146	302 ± 268
Alkaline phosphatase (U/L, mean ± SD)	341 ± 183	328 ± 192	495 ± 316
GGT (IU/mL, mean ± SD)	306 ± 253	634 ± 167	541 ± 390
Fever	1	1	2
Previous cholecystectomy	1	2	2
Common bile duct dilation	0	14	11
Gallstones on US	13	20	23
Gallstones on EUS in patients negative on US	2	0	0

AST: Aspartate aminotransferase; ALT: Alanine aminotransferase; GGT: γ-glutamyltransferase; US: Ultrasonography; EUS: Endoscopic ultrasonography.