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Chinese Journal of Colorectal Diseases(Electronic Edition) ›› 2024, Vol. 13 ›› Issue (03): 197-204. doi: 10.3877/cma.j.issn.2095-3224.2024.03.004

• Original Article • Previous Articles    

Prognostic factors analysis for long-term survival after radical surgery for primary rectal cancer with beyond mesorectal excision

Jinzhu Zhang1, Shiwen Mei1, Jinfeng Sun2, Gang Hu1, Wenlong Qiu1, Guoli Li2, Xin Wang3, Xishan Wang1,(), Jianqiang Tang1,()   

  1. 1. Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
    2. Department of Anorectal Surgery, Chifeng Municipal Hospital, Chifeng 024000, China
    3. Department of General Surgery, Peking University First Hospital, Beijing 100034, China
  • Received:2023-06-07 Online:2024-06-25 Published:2024-07-04
  • Contact: Xishan Wang, Jianqiang Tang

Abstract:

Objective

To explore the risk factors affecting the long-term survival of patients with primary colorectal cancer undergoing beyond mesorectal excision.

Methods

A retrospective analysis was performed on clinical data of patients with locally advanced primary colorectal cancer who underwent radical surgery between January 2010 and December 2021 at Cancer Hospital of Chinese Academy of Medical Sciences, Peking University First Hospital, and Chifeng Municipal Hospital in China. Cox multivariate regression analysis was used to analyze the risk factors that affect their overall survival time and progression-free survival time.

Results

A total of 557 patients with locally advanced primary colorectal cancer who met the inclusion and exclusion criteria were included. The overall survival rates at 1 year, 3 years, and 5 years were 90.9%, 74.7%, and 63.2%, respectively, while the disease-free survival rates at 1 year, 3 years, and 5 years were 83.7%, 66.9%, and 62.2%, respectively. Cox regression analysis identified age >60 (OS: HR=1.980, P<0.001; DFS: HR=1.429, P=0.019), neoadjuvant chemoradiotherapy (OS: HR=1.639, P=0.005; DFS: HR=1.845, P<0.001), cancer invasion (OS: HR=1.418, P=0.028; DFS: HR=1.690, P=0.001), lymph node metastasis (OS: HR=1.773, P<0.001; DFS: HR=2.347, P<0.001), and non-R0 resection (OS: HR=2.138, P=0.004; DFS: HR=2.944, P<0.001) as independent risk factors affecting overall survival and disease-free survival of patients (P<0.05).

Conclusion

Age over 60, neoadjuvant chemotherapy, cancer invasion, lymph node metastasis and non-R0 resection are associated with poor prognosis in patients with locally advanced colorectal cancer.

Key words: Colorectal neoplasms, Locally advanced colorectal cancer, Disease free survival, Overall survival

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