Gastrectomy for patients with gastric cancer and non-uremic renal failure

Table 1 Preoperative patients’ characteristics

	G1	G2	P-value
Number	110	37
Sex (male/female)	80/30	27/10	P = 0.98 (χ2)
Age	66.6 ± 9.4	73.2 ± 9.4	P < 0.001
BMI	22.2 ± 3.3	21.5 ± 3.6	P = 0.24
BUN (mg/dL)	13.5 ± 4.0	17.0 ± 4.6	P < 0.001
Cr (mg/dL)	0.7 ± 0.2	0.9 ± 0.2	P < 0.001
Ccr (mL/min)	82.5 ± 15.9	38.1 ± 8.8	P < 0.001

Statistical analyses were performed by Mann-Whitney U test, except sex. χ²: Chi-square test.

Table 2 Surgical procedure n (%)

	G1	G2	P-value
Distal gastrectomy	60 (54.5)	20 (54.1)	0.96
Total gastrectomy	44 (40)	15 (40.5)	0.95
Proximal gastrectomy	0	1 (2.7)	0.08
Remnant gastrectomy	6 (5.5)	0	0.33
Partial gastrectomy	0	1 (2.7)	0.08

Table 3 Extent of lymph nodes dissection n (%)

		G1	G2	P-value
Distal gastrectomy	D0	53.30	45.00	0.24
	D1	38.30	25.00	0.036
	D2	8.30	30.00	< 0.001
Total gastrectomy	D0	25.00	26.70	0.78
	D1	68.20	40.00	< 0.001
	D2	6.80	33.30	< 0.001

Extents of lymph nodes dissection (D0, D1, D2 were according to The 13th Edition, Japanese Classification of Gastric Carcinoma.

Table 4 TNM classification n (%)

	G1	G2
Stage IA	45 (40.9)	7 (18.9)
IB	20 (18.2)	8 (21.6)
Stage II	10 (9.1)	5 (13.5)
Stage IIIA	13 (11.8)	7 (18.9)
IIIB	5 (4.5)	1 (2.7)
Stage IV	17 (15.5)	9 (24.3)

Table 5 Perioperative data

	G1	G2	P-value
Operation time (min)	279 (139-643)	259 (130-521)	0.14
Operative blood loss (mL)	324 (26-2314)	250 (42-3251)	0.0481
Operative urine volume (mL/kg per hour)	0.92 (0.25-7.31)	0.71 (0.17-3.03)	0.17
Postoperative complications (%)	18.2	16.2	0.79
Postoperative hospital stay (d)	15 (11-73)	15 (11-80)	0.78

¹Statistically significant.

Table 6 Postoperative percentile increases in BUN and Cr

	G1	G2	P-value
BUN	19.5% (-55.6-180)	11.5% (-47.6-166.7)	P > 0.05
Cr	9.0% (-20.5-700)	0.0% (-20-42.9)	P > 0.05

Table 7 Postoperative complications

	G1	G2
Pneumonia	6	3
Pancreatitis	4	0
Anastomotic leakage	4	1
Drain infection	3	0
Catheter infection	2	1
Ileus	1	0
Others	3	3