Evidence map›Paper›PMID 33596860›Full record

Trial reportBMC cancer2021

Long-term oncological outcomes of low anterior resection for rectal cancer with and without preservation of the left colic artery: a retrospective cohort study.

Yuwen Luo, Rongjiang Li, Deqing Wu, Jun Zeng, Junjiang Wang, Xianzhe Chen, Chengzhi Huang, Yong Li, Xueqing Yao

Open access · goldAbstract readClinical TrialComparative Study
In one paragraph

Trial report in BMC cancer, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.5field-weighted citation impact, top 15% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 20 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 1 country.

Yuwen Luo *The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510082, 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 WangThe Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510082, People's Republic of China.
Xianzhe ChenThe Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510082, People's Republic of China.
Chengzhi HuangDepartment of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People's Republic of China.
Yong LiThe Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510082, People's Republic of China.
Xueqing YaoThe Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510082, People's Republic of China. syyaoxueqing@scut.edu.cn.ORCID http://orcid.org/0000-0003-0570-7585
Guangdong Academy of Medical Sciences · CNShenzhen University · CNGuangdong University of Technology · CN

Funding

the Research Fund of CSCO-Hansoh Oncology NO. Y-HS2019/2-050the Research Fund of CSCO-Roche Oncology NO. Y-2019Roche-190the Research Fund of Guangdong General Hospital No. y012015338the Science and Technology Planning Project of Guangdong Province, China No. 2017A030223006, 2016A020215128the Science and Technology Planning Project of Guangzhou, China No. 201704020077the Second Batch of Scientific Research Projects of Dengfeng Plan NO. DFJH201913the Yuexiu Science and Information Center of Guangzhou Scientific Foundation No. 2012‑GX‑046
6 · The paper itself

Abstract

backgroundThere 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.

methodsWe 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.

resultsAltogether, 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).

conclusionsThe 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.

Indexed as

AgedFemaleFollow-Up StudiesHumansLaparoscopyMaleMesenteric Artery, InferiorMiddle AgedProctectomyPrognosisRectal NeoplasmsRetrospective StudiesSurvival RateInferior mesenteric arteryLeft colic arteryLong-term oncologic outcomesRectal cancer

Identifiers

PMID33596860
PMCPMC7890901
OpenAlexW3129766508

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.