Laparoscopic-assisted vs open transhiatal gastrectomy for Siewert type II adenocarcinoma of the esophagogastric junction: A retrospective cohort study

Table 2 Perioperative outcomes (mean ± SD)/median (interquartile range)

	LTG, n = 382	OTG, n = 196	P value
Operation time in min	230.14 ± 58.92	198.4 ± 56.76	< 0.001
Blood loss in m	200.42 ± 304.34	275.77 ± 384.72	0.010
Length of abdominal incision in cm	9.66 ± 1.73	18.12 ± 3.92	< 0.001
Length of proximal margin in cm	1.15 ± 0.72	1.16 ± 0.77	0.986
R-status, n (%)			0.879
R0	380 (99.5)	194 (99.0)
R1/2	2 (0.5)	2 (1.0)
Number of harvested LNs	28.81 ± 12.16	26.20 ± 12.23	0.015
Number of positive LNs	3.72 ± 6.33	3.61 ± 5.30	0.842
Time to liquid diet in d	3.65 ± 2.56	4.62 ± 2.49	< 0.001
Time to first flatus or defecation in d	3.87 ± 2.17	5.62 ± 2.35	< 0.001
Time to ambulation in d	2.93 ± 2.04	4.13 ± 2.55	< 0.001
Postoperative hospitalization in d	9 (8, 11)	10 (9, 12)	< 0.001a
Postoperative complication, n (%)	19 (5.0)	9 (4.6)	0.840
Clavien–Dindo ≥ IIIa	18 (4.7)	8 (4.1)	0.729
Anastomotic leakage	13 (3.4)	5 (2.6)	0.577
Abdominal abscess	2 (0.5)	1 (0.5)	1.000
Anastomotic stenosis	2 (0.5)	1 (0.5)	1.000
Pneumonia	0	1 (0.5)	0.339b
Arrhythmia	1 (0.3)	0	1.000b
Wound infection	1 (0.3)	1 (0.5)	1.000b
Mortality	0	0

^aMann-Whitney U test.

^bFisher’s test.

LNs: Lymph nodes; LTG: Laparoscopic-assisted transhiatal gastrectomy; OTG: Open transhiatal gastrectomy.