Short-term outcomes of robot-assisted minimally invasive esophagectomy for esophageal cancer: a propensity score matched analysis

Table 2 Postoperative outcomes of propensity score-unmatched and matched patients

Postoperative outcomes	Before matching			After matching
Postoperative outcomes	RAMIE (n = 27)	VAMIE (n = 88)	P value	RAMIE (n = 27)	VAMIE (n = 27)	P value
Operation time (minutes)	349 ± 45	294 ± 52	< 0.001	349 ± 45	285 ± 66	< 0.001
Blood loss (mL)	118 ± 71	165 ± 107	0.030*	119 ± 72	158 ± 82	0.062*
Number of harvested LNs	20 ± 7	18 ± 6	0.214*	20 ± 7	19 ± 5	0.420*
Postoperative hospital stay (day)	13.8 ± 2.0	14.1 ± 4.2	0.548*	13.8 ± 2.0	12.8 ± 2.7	0.128
Overall complication (at least one) [n (%)]	10 (37.0)	37(42.0)	0.643	10 (37.0)	9 (33.3)	0.776
RLN injury [n (%)]	4 (14.8)	14 (15.9)	0.891	4 (14.8)	3 (11.1)	1.000†
Pulmonary complication [n (%)]	5 (18.5)	16 (18.2)	0.968	5 (18.5)	2 (7.4)	0.224
Arrhythmia [n (%)]	1 (3.7)	8 (9.1)	0.362	1 (3.7)	0	1.000†
Anastomotic leak [n (%)]	3 (11.1)	9 (10.2)	0.763	3 (11.1)	1 (3.7)	0.351†
Chylothorax [n (%)]	0	1 (1.1)	1.000†	0	1 (3.7)	1.000†
Bleeding [n (%)]	1 (3.7)	2 (2.3)	0.556†	1 (3.7)	1 (3.7)	1.000†
Delayed gastric emptying [n (%)]	1 (3.7)	7 (8.0)	0.448	1 (3.7)	0	1.000†
90-day mortality [n (%)]	0	2 (2.3)	1.000†	0	1 (3.7)	1.000†

Data were presented as mean ± standard deviation for continuous variables or number (%) for categorical data
*Mann-Whitney U test; †Fisher’s exact test
RAMIE robot-assisted minimally invasive esophagectomy, VAMIE video-assisted minimally invasive esophagectomy, RLN recurrent laryngeal nerve

ISSN: 1749-8090