Complications of chronic pancreatitis prior to and following surgical treatment: A proposal for classification

Table 4 Distribution of complications of chronic pancreatitis according to the used type of surgical procedure prior to surgical treatment, and appearance of new complications during follow-up, in 166 surgically treated patients

Classification	Type of surgical procedure, n (%)
	PD resection, n = 11	DPPHR, n = 34	Distal resection, n = 15	Drainage procedure, n = 93	Palliative procedures, n = 13	Total, n = 166
Complications, n (%)
Pancreatic duct complications	1 (9.1)	1 (2.9)	4 (26.7)	29 (31.2)	-	35 (21.1)
Preoperative cases	1	1	4	28	-	34
New cases, FU	-	-	-	1	-	1
Peripancreatic complications	6 (54.5)	9 (26.5)	-	25 (26.9)	13 (100)1	55 (33.1)
Preoperative cases	6	4	-	17	13	42
New cases, FU	-	5	-	8	-	13
Pancreatic hemorrhages	1 (9.1)	1 (2.9)	9 (60.0)	6 (6.5)	-	17 (10.2)
Preoperative cases	1	1	9	6	-	17
New cases, FU	-	-	-	-	-	-
PEI	8 (72.7)	15 (44.1)	5 (33.3)	46 (49.5)	9 (69.2)	83 (50.0)
Preoperative cases	1	6	3	33	9	52
New cases, FU	7	9	2	13	-	31
T3cDM	3 (27.3)	12 (35.3)	8 (53.3)	39 (41.9)	11 (84.6)	73 (44.0)
Preoperative cases	1	7	2	25	10	45
New cases, FU	2	5	6	14	1	28

¹Three patients had simultaneously two peripancreatic complications. DPPHR: Duodenum-preserving pancreatic head resection; FU: Follow up; PD: Pancreatoduodenal resection; P: Pancreatic; PEI: Pancreatic exocrine insufficiency; T3cDM: Type 3c diabetes mellitus.