Table 2.

Surgical information and pathological characteristics of patients with pancreatic head cancer.

	D Group	V Group
Characteristics	n = 42	n = 59	P value
Surgical information
Standard lymphadenectomy	27 (64.3%)	34 (57.6%)	.500
Extended lymphadenectomy	15 (35.7%)	25 (42.4%)	.500
Blood lose, mL	650 (200–2100)	730 (200–2250)	.887
Blood transfusion	7 (16.7%)	12 (20.3%)	.642
Postoperative complications∗	12 (28.6%)	18 (30.5%)	.461
Positive surgical margin†	3 (7.1%)	2 (3.4%)	.647
Postoperative chemotherapy	15 (35,7%)	19 (32.2%)	.713
Tumor factors
Tumor size, cm‡	3.15 ± 0.83	2.72 ± 0.66	.005
Vascular invasion positive	14 (33.3%)	22 (37.3%)	.683
Perineural invasion positive	37 (88.1%)	52 (88.1%)	.995
Lymph node invasion positive	24 (57.1%)	31 (52.5%)	.647
LN8, LN12 invasion positive	19 (45.2%)	6 (10.2%)	.001
LN14 invasion positive	2 (4.8%)	19 (32.2%)	.002
LN16 invasion positive	12 (28.6%)	13 (22.0%)	.453
Bile duct invasion positive	33 (78.6%)	35 (59.3%)	.042
Duodenal invasion positive	30 (71.4%)	26 (44.1%)	.006
Serosal infiltration positive	28 (66.7%)	47 (79.7%)	.141
Pathological UICC stage			.504
Ia	2 (4.8%)	1 (1.7%)
Ib	12 (28.6%)	25 (42.4%)
IIa	3 (7.1%)	2 (3.4%)
IIb	15 (35.7%)	21 (35.6%)
III	10 (23.8%)	10 (16.9%)