Microbial profile and antibiotic sensitivity pattern in bile cultures from endoscopic retrograde cholangiography patients

Table 1 Main indications for cholangiographic intervention in the study population n (%)

Diagnosis
Choledocholithiasis	75 (83)
Pancreatic cancer	6 (7)
Papilla cancer	4 (4)
Cholangiocellular cancer	2 (2)
Chronic pancreatitis	1 (1)
Bile leakage	1 (1)
Benign stricture	1 (1)
Fasciola hepatica	1 (1)

Table 2 Distribution of different organisms in positive bile cultures n (%)

Bacteria
Escherichia coli	13 (28.2)
Pseudomonas	8 (17.3)
Stenotrophomonas maltophilia	7 (15.2)
Enterococcus faecium	4 (8.6)
Enterobacter cloacae	3 (6.5)
Enterobacter aerogenes	1 (2.1)
Citrobacter freundii	2 (4.2)
Staphylococcus aureus	1 (2.1)
Streptococcus acidominimus	1 (2.1)
Achromobacter species	1 (2.1)
Pentoniphilicus asaccharolyticus	1 (2.1)
Lactobacillus gasseri	1 (2.1)
Bifidobacterium	1 (2.1)
Provotella disiens	1 (2.1)
Chryseobacterium meningosepticum	1 (2.1)

Table 3 Results of antibiotic susceptibility tests

Antibiotic	Susceptibility (%)
Meropenem	86
Amikacin	86
Imipenem	79
Piperacillin/tazobactam	61
Gentamicin	53
Ciprofloxacin	52
Levofloxacin	51
Ceftazidime	46
Ampicillin	21
Cefotaxime	14
Ampicillin/sulbactam	11