Evidence map›Paper›PMID 31894481›Full record

ArticleAnnals of surgical oncology2020

Long-Term Survival after Minimally Invasive Versus Open Gastrectomy for Gastric Adenocarcinoma: A Propensity Score-Matched Analysis of Patients in the United States and China.

Jun Lu, Changhwan Yoon, Binbin Xu, Jianwei Xie, Ping Li, Chaohui Zheng, Changming Huang, Sam S Yoon

Open access · greenAbstract readComparative Study
In one paragraph

Article in Annals of surgical oncology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 18% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. A nonrandomized controlled trial: long-term outcomes of LATG/LAPG for cStage I gastric cancer: Japan Clinical Oncology Group Study JCOG1401.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2024
    Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Article
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 3 institutions in 2 countries.

Jun LuDepartment of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, China.
Changhwan YoonDepartment of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
Binbin XuDepartment of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, China.
Jianwei XieDepartment of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, China.
Ping LiDepartment of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, China.
Chaohui ZhengDepartment of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, China.
Changming HuangDepartment of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, China.
Sam S YoonDepartment of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA. yoons@mskcc.org.
Union Hospital · CNFujian Medical University · CNMemorial Sloan Kettering Cancer Center · US

Funding

X-RAY CRYSTALLOGRAPHYP30CA008748 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Nicholas D Socci · 1985 to 2026
$347.4M
Construction Project of Fujian Province Minimally Invasive Medical Centre No. [2017] 171National Nature Science Foundation of China No. 81871899Natural Science Foundation of Fujian Province 2019J01155NCI NIH HHS P30 CA008748
6 · The paper itself

Abstract

backgroundThis study aimed to compare the long-term survival of patients undergoing minimally invasive gastrectomy and those undergoing open gastrectomy for gastric adenocarcinoma (GA) in the United States and China.

methodsData on patients with GA who underwent gastrectomy without neoadjuvant therapy were retrieved from prospectively maintained databases at Memorial Sloan Kettering Cancer Center (MSKCC) and Fujian Medical University Union Hospital (FMUUH). Using propensity score-matching (PSM), equally sized cohorts of patients with similar clinical and pathologic characteristics who underwent minimally invasive versus open gastrectomy were selected. The primary end point of the study was 5-year overall survival (OS).

resultsThe study identified 479 patients who underwent gastrectomy at MSKCC between 2000 and 2012 and 2935 patients who underwent gastrectomy at FMUUH between 2006 and 2014. Of the total 3432 patients, 1355 underwent minimally invasive gastrectomy, and 2059 underwent open gastrectomy. All the patients had at least 5 years of potential follow-up evaluation. Before PSM, most patient characteristics differed significantly between the patients undergoing the two types of surgery. After PSM, each cohort included 889 matched patients, and the actual 5-year OS did not differ significantly between the two cohorts, with an OS rate of 54% after minimally invasive gastrectomy and 50.4% after open gastrectomy (p = 0.205). Subgroup analysis confirmed that survival was similar between surgical cohorts among the patients for each stage of GA and for those undergoing distal versus total/proximal gastrectomy. In the multivariable analysis, surgical approach was not an independent prognostic factor.

conclusionsAfter PSM of U.S. and Chinese patients with GA undergoing gastrectomy, long-term survival did not differ significantly between the patients undergoing minimally invasive gastrectomy and those undergoing open gastrectomy.

Indexed as

AdenocarcinomaChinaFemaleFollow-Up StudiesGastrectomyHumansLaparoscopyLength of StayMaleMiddle AgedMinimally Invasive Surgical ProceduresPrognosisPropensity ScoreRetrospective StudiesRobotic Surgical ProceduresStomach Neoplasms

Identifiers

PMID31894481
PMCPMC7004868
OpenAlexW2998296839

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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.