Evidence map›Paper›PMID 42678457›Full record

Trial reportJournal of robotic surgery2026

KangDuo surgical robot KD-SR-01 versus da Vinci Xi in robot-assisted colorectal cancer resection: oncologic outcomes at three years in a multicenter randomized trial.

Zhanpeng Cen, Zhen Sun, Tianyi Ma, Donglin Du, Lai Xu, Junyang Lu, Zhengqiang Wei, Guiyu Wang, Yi Xiao

Erratum issuedAbstract readMulticenter StudyRandomized Controlled TrialComparative Study
PubMed Publisher
In one paragraph

Trial report in Journal of robotic surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–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.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors.

Zhanpeng CenDivision of Colorectal Surgery, Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1 Shuai Fu Yuan, Dongcheng District, Beijing, 100730, China.ORCID https://orcid.org/0009-0005-3078-1594
Zhen SunDivision of Colorectal Surgery, Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1 Shuai Fu Yuan, Dongcheng District, Beijing, 100730, China.
Tianyi MaDepartment of Colorectal Cancer Surgery, The Second Affiliated Hospital of Harbin Medical University, No. 246 Xuefu Road, Harbin, 150086, Heilongjiang, China.
Donglin DuDepartment of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
Lai XuDivision of Colorectal Surgery, Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1 Shuai Fu Yuan, Dongcheng District, Beijing, 100730, China.
Junyang LuDivision of Colorectal Surgery, Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1 Shuai Fu Yuan, Dongcheng District, Beijing, 100730, China.
Zhengqiang WeiDepartment of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China. 202293@hospital.cqmu.edu.cn.
Guiyu WangDepartment of Colorectal Cancer Surgery, The Second Affiliated Hospital of Harbin Medical University, No. 246 Xuefu Road, Harbin, 150086, Heilongjiang, China. guiywang@163.com.
Yi XiaoDivision of Colorectal Surgery, Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1 Shuai Fu Yuan, Dongcheng District, Beijing, 100730, China. xiaoy@pumch.cn.

Funding

National Key Research and Development Program of China 2023YFC2413400
6 · The paper itself

Abstract

backgroundEarlier results from a multicenter randomized trial showed that colorectal cancer resection with KangDuo surgical robot KD-SR-01 (KD) and da Vinci Xi (DV) had similar perioperative and pathological outcomes, whereas long-term oncologic outcomes remained uncertain.

methodsThree-year follow-up data were analyzed for the full 100-patient cohort of the multicenter randomized trial (KD, n = 50; DV, n = 50). The long-term endpoints were disease-free survival (DFS) and overall survival (OS).

resultsMedian follow-up in both groups was 37 months (interquartile range [IQR], 34-40). Kaplan-Meier-estimated 3-year DFS rates were 85.3% for KD (95% confidence interval [CI], 71.5%-92.7%) and 85.5% for DV (95% CI, 71.9%-92.8%, log-rank P = 0.995). Kaplan-Meier-estimated 3-year OS rates were 100.0% for KD (95% CI, 100.0%-100.0%) and 94.0% for DV (95% CI, 82.4%-98.0%, log-rank P = 0.606). After covariate adjustment, the DFS hazard ratio (HR) comparing KD with DV was 0.918 (95% CI, 0.301-2.798; P = 0.881).

conclusionsAt 3 years, no significant between-group differences in DFS or OS were detected between patients assigned to KD-SR-01 and da Vinci Xi for colorectal cancer resection.

Indexed as

Colorectal NeoplasmsRobotic Surgical ProceduresAgedColorectal Surgical ProceduresDisease-Free SurvivalFemaleFollow-Up StudiesHumansKaplan-Meier EstimateMaleMiddle AgedTreatment OutcomeColorectal cancerDisease-free survivalOverall survivalRobotic surgery

Identifiers

PMID42678457

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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.