A Comparison of Two Invagination Techniques for Pancreatojejunostomy after Pancreatoduodenectomy

Table 2

Intraoperative factors, tumor characteristic, and histopathological examination.

Clinical data	ST group (—52)	C group (—52)	value
Method of reconstruction
PPPD	4 (7.7%)	8 (15.4%)
Whipple	48 (92.3%)	44 (84.6%)
Diameter of main pancreatic duct (mm): mean ± SD	Range 1–7	Range 1–9
	2.86 ± 1.27	2.98 ± 1.53
The soft texture of the remnant pancreas	7 (13.5%)	11 (21.2%)
Pancreatic external drainage	30 (57.7%)	23 (44.2%)
Anastomotic procedure time, mean ± SD (min)	14.48 ± 1.95	16.88 ± 2.08
	Range 12–20	Range 13–25
Total operative time, mean ± SD (min)	329.23 ± 54.02	338.75 ± 45.10
	Range 205–480	Range 240–450
Estimated blood loss, mean ± SD (mL)	514.13 ± 150.25	560.38 ± 318.45
	Range 300–1050	Range 300–2500
Histopathological examination
Adenocarcinoma	30 (57.7%)	34 (65.4%)
Intraductal papillary-mucinous carcinoma	0	1 (1.9%)
Intraductal papillary-mucinous neoplasm	2 (3.8%)	4 (7.7%)
Solid pseudopapillary neoplasm	1 (1.9%)	2 (3.8%)
Neuroendocrine tumor	0	1 (1.9%)
Neuroendocrine carcinoma	4 (7.7%)	2 (3.8%)
Tubular adenoma	1 (1.9%)	0
Serous cystadenoma	2 (3.8%)	0
Serous microcystic adenoma	1 (1.9%)	0
Chronic pancreatitis	11 (21.2%)	8 (15.4%)
Metastatic melanoma	1 (1.9%)	0

PPPD: pylorus-preserving pancreaticoduodenectomy; SD: standard deviation; Yates corrected Chi-square test^*, Chi-square test; -square test^#; Mann-Whitney test^±; Student-test^•.