Efficacy of laparoscopic low anterior resection for colorectal cancer patients with 3D-vascular reconstruction for left coronary artery preservation

Table 3 Data analysis of surgery and complications (mean ± SD)

Intraoperative and postoperative indicators	3D vascular reconstruction group (n = 72)	Non-3D vascular reconstruction group (n = 74)	χ2	P value
Operation time (min)	162.2 ± 10.8	197.9 ± 19.1	-13.84	0.001
Conversion to laparotomy	0	0
Intraoperative blood loss (mL)	30.4 ± 20.0	61.2 ± 26.4	-7.93	0.001
Anastomotic leak	1 (1.4%)	1 (1.4%)	0.001	0.984
Anastomotic hemorrhage	2 (2.8%)	3 (4.1%)	0.18	0.672
Postoperative hospital stay	6.8 ± 0.7	7.0 ± 0.7	1.48	0.141