Evidence map›Paper›PMID 21174107›Full record

SynthesisInternational journal of colorectal disease2011

Laparoscopic-assisted versus open surgery for rectal cancer: a meta-analysis of randomized controlled trials on oncologic adequacy of resection and long-term oncologic outcomes.

Mei-Jin Huang, Jing-Lin Liang, Hui Wang, Liang Kang, Yan-Hong Deng, Jian-Ping Wang

Abstract readComparative StudyMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in International journal of colorectal disease, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers, 9 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed, 9 pooled it
5.8field-weighted citation impact, top 3% 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

52 citing papers in PubMed, 9 syntheses or guidelines pooled it, 121 citations in OpenAlex.

  1. Pooled it
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  3. Short-Term Outcomes of Single-Incision Versus Conventional Laparoscopic Surgery for Colorectal Diseases: Meta-Analysis of Randomized and Prospective Evidence.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2017
    Pooled it
  4. Pooled it
  5. Robotic versus laparoscopic total mesorectal excision for rectal cancer: a meta-analysis of eight studies.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2015
    Pooled it
  6. Laparoscopic versus open total mesorectal excision for rectal cancer.The Cochrane database of systematic reviews · 2014
    Pooled it
  7. Laparoscopic versus open surgery following neoadjuvant chemoradiotherapy for rectal cancer: a systematic review and meta-analysis.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2014
    Pooled it
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  16. Urogenital dysfunction in patients after miniinvasive restorative low anterior resection with total mesorectal excision.Wideochirurgia i inne techniki maloinwazyjne = Videosurgery and other miniinvasive techniques · 2022
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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 2 institutions in 1 country.

Mei-Jin HuangDepartment of Colorectal Surgery, The Sixth Affiliated Hospital (Guangdong Gastrointestinal Hospital), Sun Yat-sen University, Guangzhou 510655, People's Republic of China.
Jing-Lin Liang
Hui Wang
Liang Kang
Yan-Hong Deng
Jian-Ping Wang
Sun Yat-sen University · CNSixth Affiliated Hospital of Sun Yat-sen University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWhether laparoscopic-assisted surgery (LS) can achieve the same oncologic outcomes compared with open surgery (OS) for rectal cancer remains controversial. The aim of this meta-analysis of randomized controlled trials (RCTs) is to compare oncologic adequacy of resection and long-term oncologic outcomes of LS with OS in the treatment of rectal cancer.

methodsLiterature searches of electronic databases (Pubmed, Embase, Web of Science, and Cochrane Library) and manual searches were performed to identify RCTs comparing values of oncologic adequacy of resection, recurrence, and survival following LS and OS.

resultsSix RCTs enrolling 1,033 participants were included in the meta-analysis. LS was associated with similar number of lymph nodes harvested and a similar distal tumor-free margin. LS was associated with a slightly high circumferential resection margin (CRM) positive rate with no significant difference (7.94% vs. 5.37%; risk ratio [RR], 1.13; P = 0.63). There was no significant difference between the two groups in local recurrence (RR, 0.55; P = 0.21). The 3-year overall survival advantage for LS over OS was not statistically significantly different (hazard ratio [HR], 0.76; P = 0.11). The 3-year disease-free survival was not significantly different between the two groups (HR, 1.16; P = 0.64).

conclusionsThe meta-analysis suggests that there are no differences between laparoscopic-assisted and open surgery in terms of number of lymph nodes harvested, involvement of CRM, local recurrence, 3-year overall survival, and disease-free survival for rectal cancer. However, more high-quality studies are needed for further analysis due to the small number of included studies.

Indexed as

LaparoscopyRandomized Controlled Trials as TopicHumansLymph NodesNeoplasm Recurrence, LocalRectal NeoplasmsSurvival AnalysisTime FactorsTreatment Outcome

Identifiers

PMID21174107
OpenAlexW2033016420

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.