Evidence map›Paper›PMID 33827589›Full record

ArticleWorld journal of surgical oncology2021

Laparoscopic gastrectomy plus D2 lymphadenectomy is as effective as open surgery in terms of long-term survival: a single-institution study on gastric cancer.

Yawei Wang, Yan Wang, Wang Wu, Xiaofang Lu, Tailai An, Jiling Jiang

Open access · goldAbstract read
In one paragraph

Article in World journal of surgical oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
0.6field-weighted citation impact, top 32% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 5 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

6 authors at 3 institutions in 1 country.

Yawei Wang *The First Department of Surgery, Shenzhen Traditional Chinese Medicine Hospital, Fuhua Road 1, Futian District, Shenzhen, 518020, Guangdong, China.
Yan Wang *Department of Radiology, Shenzhen People's Hospital, Dongmen North Road 1017, Luohu District, Shenzhen, 518020, Guangdong, China.
Wang WuCenter of Digestive Diseases, The Seventh Affiliated Hospital, Sun Yat-sen University, Zhenyuan Road 628, Guangming District, Shenzhen, 518107, Guangdong, China.
Xiaofang LuDepartment of Pathology, The Seventh Affiliated Hospital, Sun Yat-sen University, Zhenyuan Road 628, Guangming District, Shenzhen, 518107, Guangdong, China.
Tailai AnCenter of Digestive Diseases, The Seventh Affiliated Hospital, Sun Yat-sen University, Zhenyuan Road 628, Guangming District, Shenzhen, 518107, Guangdong, China. antailai@mail2.sysu.edu.cn.ORCID http://orcid.org/0000-0003-0666-752X
Jiling JiangThe First Department of Surgery, Shenzhen Traditional Chinese Medicine Hospital, Fuhua Road 1, Futian District, Shenzhen, 518020, Guangdong, China. 405836898@qq.com.
Sun Yat-sen University · CNShenzhen Luohu People's Hospital · CNShenzhen Pingle Orthopedic Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLaparoscopic surgery has been widely accepted to treat early-stage gastric cancer. However, it is still controversial to perform laparoscopic gastrectomy plus D2 lymphadenectomy for locally advanced gastric cancer. We performed the present study to compare the long-term outcomes of patients after laparoscopic or open gastrectomy plus D2 lymphadenectomy.

methodsThe clinicopathological data of 182 gastric cancer patients receiving gastrectomy plus D2 lymphadenectomy between January 2011 and December 2015 at Shenzhen Traditional Chinese Medicine Hospital were retrospectively retrieved. The overall survival (OS) and disease-free survival (DFS) of these 182 patients were compared. Then, the prognostic significance of positive lymph node ratio (LNR) was assessed.

resultsAs a whole, OS (P = 0.789) and DFS (P = 0.672) of patients receiving laparoscopic gastrectomy plus D2 lymphadenectomy were not significantly different from those of patients receiving open surgery. For stage I patients, laparoscopic gastrectomy plus D2 lymphadenectomy was not significantly different from open surgery in terms of OS (P = 0.573) and DFS (P = 0.157). Similarly, for stage II patients, laparoscopic gastrectomy plus D2 lymphadenectomy was not significantly different from open surgery in terms of OS (P = 0.567) and DFS (P = 0.830). For stage III patients, laparoscopic gastrectomy plus D2 lymphadenectomy was not significantly different from open surgery in terms of OS (P = 0.773) and DFS (P = 0.404). Laparoscopic or open gastrectomy plus D2 lymphadenectomy was not proven by Cox regression analysis to be an independent prognostic factor for OS and DFS. High LNR was significantly associated with worse OS (P < 0.001) and DFS (P < 0.001). Surgical type did not significantly affect prognosis of patients with low LNR or survival of patients with high LNR.

conclusionsFor patients with gastric cancer, laparoscopic gastrectomy plus D2 lymphadenectomy was not inferior to open surgery in terms of long-term outcomes. LNR is a useful prognostic marker for GC patients.

Indexed as

LaparoscopyStomach NeoplasmsGastrectomyHumansLymph Node ExcisionPrognosisRetrospective StudiesDisease-free survivalGastric cancerLaparoscopic gastrectomy plus D2 lymphadenectomyOverall survivalPositive lymph node ratio

Identifiers

PMID33827589
PMCPMC8028217
OpenAlexW3145429604

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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.