Biliary complications associated with weight loss, cholelithiasis and choledocholithiasis

Table 1 Risk factors for biliary complications after bariatric surgery

No.	Identified risk factors
1	Preoperative cholelithiasis
2	Old age
3	Female sex
4	Diabetes mellitus
5	Previous bariatric surgery
6	BMI
7	Significant weight loss in the first six months after surgery
8	Genetic susceptibility
9	Pregnancy
10	Dyslipidemia

BMI: Body mass index.

Table 2 Incidence of the main biliary complications after bariatric surgery

Type of complication	Incidence
Chronic cholecystitis	70.2%
Cholelithiasis	36%
Acute cholecystitis	0.98%-18.1%
Pancreatitis	0.46%-9.4%
Choledocholithiasis	0.2%-5.7%
Biliary colic or dyskinesia	3.86%