Effectiveness of a new approach to minimally invasive surgery in palliative treatment of patients with distal malignant biliary obstruction

Table 3 Frequency and types of significant postoperative complications in study groups, n (%)

Indicator	Study group				Pvalue
	EIBJD, n = 34	ЕRBS, n = 32	IETBD, n = 30	PTBD, n = 38
Patients with complications	5 (14.7)	10 (31.3)	13 (43.3)	8 (21.1)	0.053
Number of complications in one patient
No	29 (85.3)	22 (68.8)	17 (56.7)	30 (78.9)	0.072
One	5 (14.7)	7 (21.9)	10 (33.3)	8 (21.1)
Two	0 (0.0)	3 (9.4)	3 (10.0)	0 (0.0)
Type of complication
Cholangitis	3 (8.8)	8 (25.0)	10 (33.3)	9 (13.2)	0.052
Pancreatitis
No	32 (94.1)	28 (87.5)	27 (90.0)	38 (100)	0.121
Mild	2 (5.9)	2 (6.3)	3 (10.0)	0 (0.0)
Moderately severe	0 (0.0)	2 (6.3)	0 (0.0)	0 (0.0)
Cholecystitis	0 (0.0)	0 (0.0)	1 (3.3)	3 (7.9)	0.157
Liver abscess	0 (0.0)	1 (3.1)	2 (6.7)	0 (0.0)	0.217

ERBS: Endoscopic retrograde biliary stenting; IEBJD: Internal-external biliary-jejunal drainage; IETBD: Internal-external transpapillary biliary drainage; PTBD: Percutaneous transhepatic biliary drainage.