To compare the curative effect of transverse colon resection and extended colon resection in the treatment of transverse colon cancer, and to find a suitable surgical method to provide reference for clinical treatment.

The clinicopathological data of patients with transverse colon cancer who received surgical treatment in the gastrointestinal surgery department of Guangdong Provincial People's Hospital from January 2006 to December 2019 were collected. Analyze the differences in surgical survival and clinical indicators between the two groups.

A total of 366 patients were included, including 58 cases of transverse colon resection and 308 cases of extended colon resection. There was no significant difference in 5-year overall survival rate and 5-year disease-free survival rate between the transverse colon resection group and the extended colon resection group (all P＞0.05).There was no significant difference in the 5-year overall survival rate between the transverse colon resection group and the extended colon resection group in patients with TNM stage I, II and III (all P＞0.05).The amount of intraoperative bleeding in the transverse colon resection group was less than that in the extended colon resection group [(55.0±29.0) mL, (96.9±28.3) mL], and the number of lymph nodes cleared in the transverse colon resection group was less than that in the extended colon resection group [(19.5±8.4), (23.1±11.4)], which were statistically significant (all P＜0.05).The results of univariate analysis showed that postoperative T stage, postoperative N stage, vascular cancer thrombus invasion, postoperative chemotherapy, surgical approach, tumor gross classification, and tumor differentiation were risk factors affecting patient prognosis (all P＜0.05).The inclusion of single factor risk factors in multivariate analysis showed that postoperative T stage, postoperative N stage, vascular tumor thrombus invasion, postoperative chemotherapy, surgical approach, tumor gross classification, and tumor differentiation were all independent risk factors affecting patient survival and prognosis (all P＜0.05).

Transverse colectomy has the same long-term prognosis as extended colectomy in the treatment of patients with transverse colon cancer. Transverse colectomy does not increase the risk of postoperative complications. Transverse colectomy can be safely used in patients with transverse colon cancer.