Evidence map›Paper›PMID 33104915›Full record

ArticleSurgical endoscopy2021

Lymph node dissection around left recurrent laryngeal nerve: robot-assisted vs. video-assisted McKeown esophagectomy for esophageal squamous cell carcinoma.

Xiaofeng Duan, Jie Yue, Chuangui Chen, Lei Gong, Zhao Ma, Xiaobin Shang, Zhentao Yu, Hongjing Jiang

Open access · bronzeAbstract read
In one paragraph

Article in Surgical endoscopy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the 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
3.7field-weighted citation impact, top 6% 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

22 citing papers in PubMed, 7 syntheses or guidelines pooled it, 37 citations in OpenAlex.

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  12. Comparison of COSurgical endoscopy · 2025
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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

8 authors at 1 institution in 1 country.

Xiaofeng DuanDepartment of Minimally Invasive Esophageal Surgery, Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Hospital and Institute, Tiyuanbei, Huanhuxi Rd., Hexi District, Tianjin, 300060, China.ORCID 0000-0002-7018-3928
Jie YueDepartment of Minimally Invasive Esophageal Surgery, Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Hospital and Institute, Tiyuanbei, Huanhuxi Rd., Hexi District, Tianjin, 300060, China.
Chuangui ChenDepartment of Minimally Invasive Esophageal Surgery, Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Hospital and Institute, Tiyuanbei, Huanhuxi Rd., Hexi District, Tianjin, 300060, China.
Lei GongDepartment of Esophageal Cancer, Tianjin Medical University Cancer Hospital and Institute, Tianjin, 300060, China.
Zhao MaDepartment of Minimally Invasive Esophageal Surgery, Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Hospital and Institute, Tiyuanbei, Huanhuxi Rd., Hexi District, Tianjin, 300060, China.
Xiaobin ShangDepartment of Minimally Invasive Esophageal Surgery, Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Hospital and Institute, Tiyuanbei, Huanhuxi Rd., Hexi District, Tianjin, 300060, China.
Zhentao YuDepartment of Esophageal Cancer, Tianjin Medical University Cancer Hospital and Institute, Tianjin, 300060, China.
Hongjing JiangDepartment of Minimally Invasive Esophageal Surgery, Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Hospital and Institute, Tiyuanbei, Huanhuxi Rd., Hexi District, Tianjin, 300060, China. jianghj@vip.163.com.
Tianjin Medical University Cancer Institute and Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis study investigated the advantages of robot-assisted McKeown esophagectomy (RAME) for extensive superior mediastinal lymph node dissection (LND) versus video-assisted McKeown esophagectomy (VAME).

methodsThe cases of 184 consecutive esophageal squamous cell carcinoma (ESCC) patients who underwent minimally invasive McKeown esophagectomy (109 with RAME, 75 with VAME) performed by a single surgical group between June 2017 and December 2019 were retrospectively reviewed.

resultsOverall, 59.8% (110/181) patients (70 treated with RAME, 40 treated with VAME; 64.2% vs. 53.3%, respectively, p = 0.139) underwent complete LND around the left recurrent laryngeal nerve (RLN) by pathological assessment. Cumulative sum plots showed increased numbers of LND around the left RLN (3.6 ± 2.0 vs. 5.4 ± 2.7, p = 0.008) and a decreased incidence of recurrent nerve injury (27.9% vs. 7.4%, p = 0.037) after RAME learning curve. Despite similar overall LND results (30.6 ± 10.2 vs. 28.1 ± 10.2, p > 0.05), RAME yielded more LND (5.4 ± 2.7 vs. 4.4 ± 2.2, p = 0.016) and a greater proportion of lymph node metastases (37.0% vs. 7.5%) around the left RLN but induced a lower proportion of recurrent nerve injuries (7.4% vs. 22.5%, p = 0.178) compared with VAME. Further analysis revealed that the complete LND around the left RLN was associated with recurrent nerve injury in the RAME (20.0% vs. 5.1%, p = 0.035) and VAME (22.5% vs. 5.7%, p = 0.041) groups but did not affect other clinical outcomes including surgical duration, intraoperative blood loss, postoperative intensive care unit stay, hospital stay, and other complications.

conclusionsFor patients with ESCC, RAME has great advantages in LND around the left RLN and recurrent nerve protection after learning curve of robotic esophagectomy.

Indexed as

Esophageal NeoplasmsEsophageal Squamous Cell CarcinomaHead and Neck NeoplasmsRobotic Surgical ProceduresEsophagectomyHumansLymph Node ExcisionRecurrent Laryngeal NerveRecurrent Laryngeal Nerve InjuriesRetrospective StudiesEsophageal squamous cell carcinomaLymph node dissectionMinimally invasive esophagectomyRecurrent laryngeal nerveRobot surgery

Identifiers

PMID33104915
PMCPMC7586865
OpenAlexW3094602174

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.