Selective sphincteroplasty of the papilla in cases at risk due to atypical anatomy

Table 1 Indication of hydrostatic balloon dilation

Indication	n	%
Intradiverticular papilla	26	49
Stenosis of previous sphincterotomy	19	35.8
Papilla of small size	4	7.5
Billroth II gastrectomy	3	5.6
Coagulopathy	1	1.9

Table 2 Classification of patients according to the presence, size and number of calculi

Biliary material	n	%
Normal common bile duct	8	15.1
Biliary sludge / microcalculi / calculi ≤ 10 mm	24	45.3
Calculi > 10 mm and ≤ 15 mm	11	20.7
Calculi > 15 mm	10	18.9
Total number of calculi > 10 mm	21	39.6
Total number of cases with 3 or more calculi	14	26.4
Number of cases with calculi > 10 mm or with 3 or more calculi	25	47.2

Table 3 Analysis of the patients with post-dilatation pancreatitis and possible risk factors

Case	Diameter largest calculus	Total number of calculi	Diameter balloon (mm)	Indication	Hospital stay (d)
1	20 mm	19	10	Billroth II	4
2	Microcalculi	Several	10	Intradiverticular	3
3	14.5 mm	3	10	Intradiverticular	3
4	Microcalculi	Several	10	Stenosis	3
5	10.5 mm	Several	10	Intradiverticular	2
6	0	0	10	Intradiverticular	3

Table 4 Complications of sphincterotomy in the literature[2,6]

Complication	Percentage (%)	Surgery (%)	Death
Pancreatitis	1-7	6.3	10-10.9 (0.2% of the total)
Haemorrhage	2.5	22	13 (0.6% of the total)
Perforation	1.3	27	16 (0.2% of the total)
Sepsis	1.7