Table 2.

Operative outcomes

	group A	group B	P value
	n = 31	n = 67
Type of pancreaticoduodenectomy
PPPD	18	37	0.44
SSPPD	7	10
PD	6	20
Pancreatic texture
soft	26	47	0.04
hard	5	27
Tumor size (mm)	27.17 ± 12.18	30.59 ± 13.64	0.25
Pancreatic duct diameter (mm)	3.61 ± 3.03	4.03 ± 2.94	0.58
Pancreatic drainage
internal	12	28	0.77
external	19	39
Surgical time (min)	408.1 ± 73.47	461.76 ± 84.98	0.003
Blood loss (ml)	948.58 ± 468	1225.5 ± 925.82	0.12
Blood transfusion (ml)	209.33 ± 425.62	231.64 ± 510.57	0.84
Portal vein resection
Yes	1	8	0.16
No	30	59

PD = pancreaticoduodenectomy; SSPPD = substomach preserving pancreaticoduodenectomy; PPPD = pylorus preserving pancreaticoduodenectomy.