Comparative analysis of two digestive tract reconstruction methods in total laparoscopic radical total gastrectomy

Table 1 Baseline data before and after propensity score matching in the two groups of patients, n (%)

Variables	Before PSM			After PSM
	DTR (n = 35)	RY (n = 42)	P value	DTR (n = 31)	RY (n = 31)	P value
Age (yr)			0.582			1
≤ 60	20 (57.1)	19 (45.2)		16 (51.6)	16 (51.6)
> 60	15 (42.9)	23 (54.8)		15 (48.4)	15 (48.4)
Sex			0.989			1
Female	8 (22.9)	9 (21.4)		7 (22.6)	7 (22.6)
Male	27 (77.1)	33 (78.6)		24 (77.4)	24 (77.4)
BMI			0.932			0.594
18.4-24.2	16 (45.7)	21 (50.0)		16 (51.6)	12 (38.7)
24.3-34.67	19 (54.3)	21 (50.0)		15 (48.4)	19 (61.3)
Tumor location			1			0.968
Upper	20 (57.1)	24 (57.1)		18 (58.1)	17 (54.8)
Middle/lower	15 (42.9)	18 (42.9)		13 (41.9)	14 (45.2)
TNM stage			0.481			0.878
I/II	16 (45.7)	25 (59.5)		16 (51.6)	18 (58.1)
III	19 (54.3)	17 (40.5)		15 (48.4)	13 (41.9)
Longest tumor diameter (cm)			0.707			0.968
0.8-3.9	15 (42.9)	22 (52.4)		15 (48.4)	16 (51.6)
4.0-14.0	20 (57.1)	20 (47.6)		16 (51.6)	15 (48.4)

PSM: Propensity score matching; BMI: Body mass index; TNM: Tumor-node-metastasis; DTR: Double-tract reconstruction; RY: Roux-en-Y reconstruction.

Table 2 Recent clinical outcomes of the two groups of patients

	DTR (n = 31)	RY (n = 31)	P value
Operation time (min)	307.58 ± 65.14	272.45 ± 62.09	0.016a
Blood loss during operation (mL)	47.42 ± 29.77	47.58 ± 29.21	0.971
Number of lymph node dissection	45.16 ± 15.10	47.97 ± 16.84	0.512
The first postoperative exhaust time (d)	3.23 ± 0.72	3.06 ± 1.18	0.158
The first time to eat liquid food after operation (d)	4.45 ± 1.18	6.0 ± 5.18	0.028a
Hospital stay after operation (d)	7.71 ± 2.15	8.87 ± 5.49	0.65
Operative complications			0.079
Grade II
Pneumonia	17	22
Lower limb thrombosis	11	14
Grade III
Abdominal infection	0	2
Anastomotic bleeding	0	1
Esophageal jejunum anastomotic fistula	0	1
White blood cells (109/L)
Preoperative	5.73 ± 1.41	5.22 ± 1.59	0.19
The first day after surgery	11.51 ± 2.81	10.79 ± 3.14	0.344
The third day after surgery	8.24 ± 2.15	7.65 ± 3.13	0.39
The fifth day after surgery	6.86 ± 1.82	7.43 ± 2.15	0.265
Neutrophils (109/L)
Preoperative	3.61 ± 1.38	3.28 ± 1.25	0.32
The first day after surgery	10.01 ± 2.73	9.47 ± 2.89	0.449
The third day after surgery	6.74 ± 1.95	6.29 ± 2.97	0.486
The fifth day after surgery	5.02 ± 1.75	5.68 ± 1.99	0.167
Platelets (109/L)
Preoperative	232.97 ± 63.29	219.65 ± 54.07	0.376
The first day after surgery	198.77 ± 55.44	181.77 ± 51.13	0.214
The third day after surgery	173.45 ± 45.10	152.19 ± 49.45	0.082
The fifth day after surgery	187.94 ± 46.52	174.87 ± 58.41	0.334

^aP < 0.05.

Continuous variables are represented by mean ± SD, and categorical variables are represented by n (%). DTR: Double-tract reconstruction; RY: Roux-en-Y reconstruction.

Table 3 Long-term clinical outcomes of the two groups of patients

	DTR (n = 31)	RY (n = 31)	P value
Food intake ratio (%)	89.61 ± 14.75	80.06 ± 17.60	0.031a
Gallbladder disease, n (%)			0.038a
Positive	2 (6.5)	8 (25.8)
Negative	29 (93.5)	23 (74.2)
Visick grade, n (%)			0.033a
I	18 (61.3)	11 (35.4)
II	12 (35.5)	14 (45.2)
III	1 (3.2)	6 (19.4)
Weight (kg)
Preoperative	71.86 ± 12.77	69.34 ± 13.14	0.447
Pos 1m	63.5 ± 11.73	62.03 ± 11.34	0.618
Pos 3m	59.24 ± 11.74	58.15 ± 10.84	0.704
Pos 6m	57.85 ± 10.25	56.55 ± 10.90	0.631
Hemoglobin (g/L)
Preoperative	134.22 ± 22.05	137.77 ± 18.49	0.495
Pos 1m	123.16 ± 15.84	122.48 ± 12.16	0.849
Pos 3m	118.97 ± 11.39	119.21 ± 8.39	0.925
Pos 6m	119.32 ± 16.68	117.20 ± 11.45	0.561
Prealbumin (mg/L)
Preoperative	270.09 ± 48.0	265.52 ± 41.41	0.689
Pos 1m	213.17 ± 56.55	204.18 ± 41.68	0.479
Pos 3m	202.37 ± 57.15	201.34 ± 44.37	0.937
Pos 6m	203.25 ± 36.66	185.12 ± 45.44	0.089
Albumin (g/L)
Preoperative	42.51 ± 3.35	42.20 ± 2.44	0.672
Pos 1m	40.80 ± 2.31	40.25 ± 2.45	0.368
Pos 3m	40.43 ± 3.21	39.93 ± 2.83	0.521
Pos 6m	40.45 ± 3.91	39.66 ± 4.12	0.44

^aP < 0.05.

Continuous variables are represented by mean ± SD, and categorical variables are represented by n (%). DTR: Double-tract reconstruction; RY: Roux-en-Y reconstruction; Pos 1m: At 1 month after operation; Pos 3m: At 3 months after operation; Pos 6m: At 6 months after operation.