Prospective study of scoring system in selective intraoperative cholangiography during laparoscopic cholecystectomy

Table 1 Factors predicting choledocholithiasis in 264 patients

Factor	No of cases with choledocholithiasis (54 cases)	No of cases without choledocholithiasis (210 cases)	Percentage (%)	P
Sex
Male	27	40	40	< 0.05
Female	27	170	14
Age
< 55ys	34	112	23
≥ 55ys	20	98	17	< 0.05
Pancreatitis
Present	15	30	33	> 0.05
Absent	39	180	18
Jaundice
Present	10	22	31	> 0.05
Absent	44	188	19
Transaminase
Normal	31	201	13
Elevated	23	9	72	< 0.05
Alkaline phosphatase
Normal	36	189	16
Elevated	18	21	46	< 0.05
Bilirubin
Normal	31	205	13
Elevated	23	5	82	< 0.05
CBD diameter on US
≤ 8 mm	33	204	14
> 8 mm	21	6	78	< 0.05

Table 2 Scoring system of predicting choledocholithiasis

Factor	Criteria	Score
Sex	Female	0
	Male	1
Transaminase	Normal	0
	Elevated	2
Alkaline phosphatase	Normal	0
	Elevated	2
Bilirubin	Normal	0
	Elevated	3
CBD diameter on US	≤ 8 mm	0
	> 8 mm	3
Total		11

Table 3 Results of scores in 184 patients before LC

	Score
	0	1	2	3	4	5	6	7	8	9	10	11
No of patients	107	49	6	3	1	2	1	3	2	2	2	6

Table 4 Relationship between scoring results and choledoch-olithiasis in 184 patients undergoing LC

Score	No of patients with choledocholithiasis	No of patients without choledocholithiasis	Percentage
< 3	3	159	1.9
≥ 3a	17	5	77.3

^aP < 0.05 vs score of less than 3.