Evidence map›Paper›PMID 35844000›Full record

SynthesisEuropean journal of medical research2022

Outcomes of laparoscopic versus open total gastrectomy with D2 lymphadenectomy for gastric cancer: a systematic review and meta-analysis.

Yongpu Yang, Yuyan Chen, Yilin Hu, Ying Feng, Qinsheng Mao, Wanjiang Xue

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in European journal of medical research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 10% 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

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

  1. Pooled it
  2. Article
  3. Review
  4. The effectiveness of individualized thirst management in patients with postoperative thirst for gastric cancer.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. 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
  13. Article
  14. Article
  15. Article
  16. 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

6 authors at 2 institutions in 1 country.

Yongpu Yang *Department of Gastro intestinal Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China.
Yuyan Chen *Department of Gastro intestinal Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China.
Yilin HuDepartment of Gastro intestinal Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China.
Ying FengDepartment of Gastro intestinal Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China.
Qinsheng MaoDepartment of Gastro intestinal Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China.
Wanjiang XueDepartment of Gastro intestinal Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China. xuewanjiang@ntu.edu.cn.
Affiliated Hospital of Nantong University · CNNantong University · CN

Funding

National Natural Science Foundation of China 81672409
6 · The paper itself

Abstract

backgroundThe effectiveness of laparoscopic total gastrectomy with D2 lymphadenectomy (LTGD2) remains controversial. This meta-analysis compares surgical and survival outcomes of LTGD2 and open total gastrectomy with D2 lymphadenectomy (OTGD2) for gastric cancer.

methodsControlled studies comparing LTGD2 and OTGD2 published before November 2021 were retrieved via database searches. We compared intraoperative outcomes, pathological data, postoperative outcomes, 5-year disease-free survival (DFS), and overall survival (OS).

results17 studies were included, containing 4742 patients. Compared with OTGD2, the LTGD2 group had less blood loss (mean difference [MD] = - 122.48; 95% CI: - 187.60, - 57.37; P = 0.0002), fewer analgesic medication (MD = -2.48; 95% CI: - 2.69, - 2.27; P < 0.00001), earlier first flatus (MD = - 1.03; 95% CI: - 1.80, - 0.26; P = 0.009), earlier initial food intake (MD = - 0.89; 95% CI: - 1.09, - 0.68; P < 0.00001) and shorter hospital stay (MD = - 3.24; 95% CI: - 3.75, - 2.73; P < 0.00001). The LTGD2 group had lower postoperative total complication ratio (OR = 0.76; 95% CI: 0.62, 0.92; P = 0.006), incision (OR = 0.50; 95% CI:0.31, 0.79; P = 0.003) and pulmonary (OR = 0.57; 95% CI: 0.34, 0.96; P = 0.03) complication rates, but similar rates of other complications and mortality. Total number of dissected lymph nodes were similar, but the number of No. 10 dissected nodes was less with LTGD2 (MD = - 0.31; 95% CI: - 0.46, - 0.16; P < 0.0001). There was no difference in 5-year OS (P = 0.19) and DFS (P = 0.34) between LTGD2 and OTGD2 groups.

conclusionsLTGD2 produces small trauma, fast postoperative recovery and small length of hospital stays than OTGD2, and had similar long-term clinical efficacy as OTGD2. However, these results still need further high-quality prospective randomized controlled trials confirmation.

Indexed as

LaparoscopyStomach NeoplasmsGastrectomyHumansLymph Node ExcisionPostoperative ComplicationsProspective StudiesTreatment OutcomeD2 lymphadenectomyGastric cancerLaparoscopic total gastrectomyMeta-analysisSurgical outcomesSurvival outcomes

Identifiers

PMID35844000
PMCPMC9290297
OpenAlexW4285731031

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.