Single center experience in selecting the laparoscopic Frey procedure for chronic pancreatitis

Table 1 Demographics and peri-operative characteristics of nine laparoscopic patients

Patient	Sex	Age (yr)	BMI (kg/m2)	Etiology	ASA	VAS	Pancreatitis	M-ANNHEIM	M-ANNHEIM score
1	Male	54	17.8	Alcohol	II	6	No	IIb	9
2	Male	44	20.4	Idiopathic	II	7	No	Ib	7
3	Male	60	18.5	Alcohol	III	7	No	IIb	14
4	Male	52	21.4	Alcohol	III	8	Yes	Ib	10
5	Male	56	19.3	Alcohol	II	7	No	IIb	14
6	Male	46	22.1	Alcohol	II	6	No	Ib	9
7	Male	42	19.7	Alcohol	II	8	No	Ib	9
8	Male	56	21.8	Idiopathic	III	8	No	IIb	14
9	Male	36	22.4	Idiopathic	II	7	No	Ib	9
	Amylase	WBC (× 109/L)	CRP	IL-6	Pancreatic duct (mm)	Stones	Inflammatory mass	History of CP (mo)
1	68	5.1	No	No	8	Yes	No	62
2	48	6.14	No	No	5	No	Yes	42
3	47	4.11	No	No	10	Yes	No	85
4	101	5.3	No	No	8	Yes	No	32
5	78	6.84	No	No	9	Yes	No	76
6	53	4.7	No	No	8	Yes	No	47
7	55	5.1	No	No	9	Yes	No	56
8	66	6.44	No	No	11	Yes	No	80
9	44	5.3	No	No	9	Yes	No	32

M-ANNHEIM: A classification system for chronic pancreatitis, Ib indicates recurrent or chronic abdominal pain without pancreatic insufficiency, IIb indicates isolated exocrine (or endocrine) pancreatic insufficiency with pain; ASA: American Society of Anesthesiologists; VAS: Visual analogue score; WBC: White blood cell; IL: Interleukin; CRP: C-reactive protein; CP: Chronic pancreatitis.

Table 2 Demographics and peri-operative characteristics of 37 open surgery patients

Male/Female	30/7
Age (yr)	45 ± 11 (27-70)
Body mass index	20.6 ± 2.9 (15.4-27.7)
Etiology
Alcohol	26 (70)
Idiopathic	11 (30)
Pancreatic stone	30 (81)
Pancreatic mass	4 (11)
Acute exacerbation	19 (51)
History of diagnosis of CP (mo)	34 ± 17 (9-85)
Amylase elevated over 3 times	4 (11)
Complications due to pancreatitis
Pancreatic pseudocyst	12 (32)
Bile duct stenosis	5 (14)
PPH	1 (3)
Functional insufficiency
IGT/Diabetes mellitus	10 (27)
Malabsorption	1 (3)

CP: Chronic pancreatitis; PPH: Postpancreatectomy hemorrhage; IGT: Impaired glucose tolerance.

Table 3 Postoperative characteristics of nine laparoscopic Frey procedures

Patient	Converted	Operative time (min)	EBL (mL)	Complications	Mortality	LOS	EBL (3-mo)
1	No	370	50	No	No	5	2
2	Yes	-	-	-	-	-	-
3	No	290	60	No	No	7	1
4	No	-	-	-	-	-	-
5	No	310	50	PPH (grade A)	No	11	0
6	No	330	70	No	No	6	2
7	No	350	50	No	No	7	2
8	No	300	40	No	No	5	0
9	No	310	80	No	No	6	1

PPH: Postpancreatectomy hemorrhage; EBL: Estimated intra-operative blood loss.

Table 4 Results of multiple linear regression analysis of 37 open Frey procedures

Risk factors	Standard regression coefficient	P value
Inflammatory mass	0.559	0.00
Acute exacerbation	0.508	0.00