Evidence map›Paper›PMID 31586244›Full record

Trial reportSurgical endoscopy2020

Comparison of pathological outcomes after transanal versus laparoscopic total mesorectal excision: a prospective study using data from randomized control trial.

Ziwei Zeng, Shuangling Luo, Junji Chen, Yonghua Cai, Xingwei Zhang, Liang Kang

Registry-linked trialAbstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Surgical endoscopy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02966483 (Transanal Versus Laparoscopic Total Mesorectal Excision for Mid and Low Rectal Cancer), which is not on this map. Cited by 22 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 7 pooled it
–field-weighted citation impact
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.

NCT02966483 narecruitingnot on this map

Transanal Versus Laparoscopic Total Mesorectal Excision for Mid and Low Rectal Cancer (TaLaR): a Multicentre Randomised Clinical Trial

TypeinterventionalSponsorSun Yat-sen UniversityRan2016 to 2026Enrolled1,114ConditionsRectal Neoplasms Malignant, SurgeryArmsTaTME, LpTME
3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 7 syntheses or guidelines pooled it.

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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

6 authors.

Ziwei ZengDepartment of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510655, Guangdong, People's Republic of China.
Shuangling LuoDepartment of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510655, Guangdong, People's Republic of China.
Junji ChenDepartment of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510655, Guangdong, People's Republic of China.
Yonghua CaiDepartment of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510655, Guangdong, People's Republic of China.
Xingwei ZhangDepartment of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510655, Guangdong, People's Republic of China.
Liang KangDepartment of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510655, Guangdong, People's Republic of China. kangl@mail.sysu.edu.cn.ORCID 0000-0001-7062-8280

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionTotal mesorectal excision (TME) is the standard procedure for middle lower rectal cancer, and transanal total mesorectal excision (taTME) was founded as a valid alternative to the open and laparoscopic TME. The quality of the procedure performed is important for prognosis of patients. This study was designed to compare the pathological results of taTME with those of laparoscopic TME (laTME), based on the data from a randomized control trial (RCT: NCT02966483).

methodsBetween April 2016 and November 2018, all rectal cancer patients who underwent taTME or laTME in the Sixth Affiliated Hospital of Sun Yat-sen University (Guangzhou, China) and enrolled in the RCT were included in this study. The data from all participants were prospectively input in a standardized database.

resultsIn total 128 patients were included in the taTME group and 133 patients were included in the laTME group. The demographics and tumor characteristics were not significantly different between the two group. T3 or N0 lesions were most common in both groups. The mesorectum specimen was complete or nearly complete in all patients. The positive distal resection margin (DRM) was detected in 2 (1.5%) cases in the laTME group versus no cases in the taTME group (P = 0.498), and the distance between the tumor and DRM in the taTME group (1.4 ± 1.1) may have the longer tendency than that in the laTME group (1.3 ± 0.9) (P = 0.745). The positive circumferential resection margin was detected in 2 cases in each group (P = 0.674). The median number of resected lymph nodes was 15.0 in taTME group versus 16.0 in the laTME group (P = 0.069).

conclusionThe pathological outcomes between transanal and laparoscopic total mesorectal excision are similar. The rate of positive resection margin could not be significant decreased, nonetheless the decrease trend could be shown.

Indexed as

AdultAgedFemaleHumansLaparoscopyMaleMargins of ExcisionMiddle AgedProctectomyProspective StudiesRectal NeoplasmsRectumTransanal Endoscopic SurgeryCircumferential resection marginDistal resection marginMesorectal resection qualityRectal cancerTotal mesorectal excisionTransanal total mesorectal excision

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Registered trials

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.