To compare the clinical value of laparoscopic SMA with left-sided radical resection of SMV in the treatment of right hemi-intestinal cancer.

A retrospective analysis of 83 cases of right half bowel cancer patients undergoing surgery from August 2017 to November 2019. 40 patients with left side of SMA as medial boundary of intraoperative lymph node dissection were included in the SMA group (40 patients). 43 patients with the left side of SMV as the medial line of lymph node dissection during the operation were included in the SMV group (43 cases). SPSS 25.0 software package was used to proofread the whole group of data, surgical related indicators, lymphatic clearance and other measurement data were described by (±s), and independent t tests were performed; counting data such as complications were described χ² test was performed, P<0.05 was statistically significant.

Compared with the SMV group, operative blood loss, postoperative anal exhaust time, and length of hospital stay in the SMA group were not significantly different from those in the SMV group (P>0.05). The operative time, the drainage volume, drainage placement time, average number of positive lymph nodes and average total number of lymph node dissections in SMA group were longer or more than those in SMV group, and the difference was statistically significant (P<0.05). The total incidence of postoperative complications in SMA group was higher than that in SMV group (42.5% vs. 20.9%), and the difference was statistically significant (P<0.05).

Compared with the left side of SMV, D3 radical resection of right hemi-intestinal cancer with the left side of laparoscopic SMA as the boundary can perform more thorough clearance of the lesion, but there are more postoperative complications, so the clinical selection needs to be careful.