Laparoscopic spleen-preserving splenic hilar lymphadenectomy in 108 consecutive patients with upper gastric cancer

Table 1 Baseline demographic and clinicopathological characteristics of patients

Characteristic		Value
Gender	Male/female	87/21
Age (yr)		62 ± 9
Tumour size (cm)		5.0 ± 2.6
BMI (kg/m2)		22.1 (14.5-34.5)
Tumour location	Lesser curvature/greater curvature/anterior wall/posterior wall/circumferential involvement	30/21/15/19/23
Pathological type	Differentiated/undifferentiated type	43/65
cT stage	T2/T3	36/72
pT stage	T1/T2/T3/T4a	12/14/73/9
pN stage	N0/N1/N2/N3	31/17/23/37
TNM stage	IA/IB/IIA/IIB/IIIA/IIIB/IIIC	9/8/19/14/23/29/6

Data are expressed as mean ± SD. BMI: Body mass index; cT stage: Clinical tumour stage; pT stage: Pathological tumour stage.

Table 2 Intraoperative and postoperative surgical outcomes

Item	Value
Operation time (min)	169.3 ± 27.1
Blood loss (mL)	46.2 ± 11.3
No. 10 lymphadenectomy (min)	20.0 ± 5.7
No. 10 lymphadenectomy blood loss (mL)	14.3 ± 3.8
Time to first flatus (POD)	3.4 ± 1.1
Time to fluid diet (POD)	4.7 ± 1.6
Time to soft diet (POD)	8.3 ± 4.2
Hospital stay (POD)	11.9 ± 6.0

Data are expressed as mean ± SD. No. 10 lymphadenectomy: Splenic hilar lymphadenectomy; POD: Postoperative days.

Table 3 Intraoperative and postoperative complications

Item	Value	Incidence
Intraoperative complications (n)	4	3.7%
Transverse colon injury	1
Spleen injury	1
Left gastric vein bleeding	1
Gastric short arteries bleeding	1
Postoperative complications (n)	13	12.0%
Pulmonary infection	8
Abdominal infection	2
Anastomotic leakage	1
Intestinal obstruction	1
Chylous fistula	1

Table 4 Lymph nodes dissection results

Item	Value
Total No. of retrieved LNs	4797
Mean No. of retrieved LNs	44.4 ± 17.6
Total No. of retrieved No. 10 LNs	327
Mean No. of retrieved No. 10 LNs	3.0 ± 2.4
Total No. of No. 10 LNs metastasis	3
No. of No. 10 LNs metastasis in pT3	2
No. of No. 10 LNs metastasis in pT4a	1
No. 10 LNs metastasis rate	2.8%
No. 10 LNs metastasis rate in pT3	2.7%
No. 10 LNs metastasis rate in pT4a	11.1%

Data are expressed as mean ± SD. LN: Lymph node; No. 10 LN: Splenic hilar lymph node; pT3: Pathological T3 stage; pT4a: Pathological T4a stage.