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Luo Y, Li R, Wu D, Zeng J, Wang J, Chen X, Huang C, Li Y, Yao X. Long-term oncological outcomes of low anterior resection for rectal cancer with and without preservation of the left colic artery: a retrospective cohort study. BMC Cancer 2021; 21:171. [PMID: 33596860 PMCID: PMC7890901 DOI: 10.1186/s12885-021-07848-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 01/27/2021] [Indexed: 12/24/2022] Open
Abstract
Background There is uncertainty in the literature about preserving the left colic artery (LCA) during low anterior resection for rectal cancer. We analyzed the effect of preserving the LCA on long-term oncological outcomes. Methods We retrospectively collected clinicopathological and follow-up details of patients who underwent low anterior resection for rectal cancer in the General Surgery Department of Guangdong Provincial People’s Hospital, from January 2014 to December 2015. Cases were divided into low ligation (LL), LCA preserved, or high ligation (HL), LCA not preserved, of the inferior mesenteric artery. The 5-year overall survival (OS) and disease-free survival (DFS) rates were compared between the two groups. Results Altogether, there were 221 and 295 cases in the LL group and HL groups, respectively. Operating time in the LL group was significantly longer than in the HL group (224.7 vs. 211.7 min, p = 0.039). Postoperative 30-day mortality, early complications including anastomotic leakage showed no significant differences between the LL and HL groups (postoperative 30-day mortality, 0.9% LL, 1.4% HL, p = 0.884; early complications, 41.2% LL, 38.3% HL, p = 0.509; anastomotic leakage 8.6% LL, 13.2% HL, p = 0.100). The median follow-up periods were 51.4 (7–61) months in the LL group and 51.2 (8–61) months in the HL group. During follow-up, the percentages of patients who died, had local recurrence, or had metastases were 39.8, 7.7, and 38.5%, respectively, in the LL group and 39, 8.5, and 40%, respectively, in the HL group; these differences were not significant (all p > 0.05). The 5-year OS and DFS were 69.6 and 59.6% in the LL group, respectively, and 69.1 and 56.2% in the HL group, respectively; these differences were not significant (all p > 0.05). After stratification by tumor-node-metastasis stage, the difference between the 5-year OS and DFS for stages I, II, and III cancer were not significant (all p > 0.05). Conclusions The long-term oncological outcomes of LL group are comparable with HL group. LL cannot be supported due to the absence of lower complication rates and the longer operating times.
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Affiliation(s)
- Yuwen Luo
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510082, People's Republic of China.,Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People's Republic of China
| | - Rongjiang Li
- Department of General Surgery, Baoan Central Hospital, The Fifth Affiliated hospital of Shenzhen University, Shenzhen, 518000, People's Republic of China
| | - Deqing Wu
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People's Republic of China
| | - Jun Zeng
- Department of General Surgery, Baoan Central Hospital, The Fifth Affiliated hospital of Shenzhen University, Shenzhen, 518000, People's Republic of China
| | - Junjiang Wang
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510082, People's Republic of China.,Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People's Republic of China
| | - Xianzhe Chen
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510082, People's Republic of China.,Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People's Republic of China
| | - Chengzhi Huang
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People's Republic of China.,School of Medicine, South China University of Technology, Guangzhou, Guangdong, 510006, People's Republic of China
| | - Yong Li
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510082, People's Republic of China.,Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People's Republic of China.,School of Medicine, South China University of Technology, Guangzhou, Guangdong, 510006, People's Republic of China.,School of Biology and Biological Engineering, South China University of Technology, Guangzhou, Guangdong, 510006, People's Republic of China
| | - Xueqing Yao
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510082, People's Republic of China. .,Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People's Republic of China. .,School of Medicine, South China University of Technology, Guangzhou, Guangdong, 510006, People's Republic of China. .,School of Biology and Biological Engineering, South China University of Technology, Guangzhou, Guangdong, 510006, People's Republic of China.
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