Evidence map›Paper›PMID 24385025›Full record

SynthesisInternational journal of colorectal disease2014

Oncological superiority of extralevator abdominoperineal resection over conventional abdominoperineal resection: a meta-analysis.

Ao Huang, Hongchao Zhao, Tianlong Ling, Yingjun Quan, Minhua Zheng, Bo Feng

Abstract readMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in International journal of colorectal disease, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 4 pooled it
4.2field-weighted citation impact, top 5% 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

25 citing papers in PubMed, 4 syntheses or guidelines pooled it, 56 citations in OpenAlex.

  1. Pooled it
  2. Rectal Cancer, Version 2.2018, NCCN Clinical Practice Guidelines in Oncology.Journal of the National Comprehensive Cancer Network : JNCCN · 2018
    Guideline
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  10. Review
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  12. Local recurrence after 'standard' abdominoperineal resection: do we really need ELAPE?Annals of the Royal College of Surgeons of England · 2018
    Article
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  19. Observational
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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.

Ao HuangDepartment of Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197, Ruijin 2nd Rd, Shanghai, 20002, People's Republic of China.
Hongchao Zhao
Tianlong Ling
Yingjun Quan
Minhua Zheng
Bo Feng
Ruijin Hospital · CNShanghai Institute of Hematology · CNShanghai Jiao Tong University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe oncological superiority, i.e., lower circumferential resection margin (CRM) involvement, lower intraoperative perforation (IOP), and local recurrence (LR) rates, of extralevator abdominoperineal resection (EAPR) over conventional abdominoperineal resection (APR) for rectal cancer is inconclusive. This meta-analysis systematically compared the rates of CRM involvement, IOP, and LR of rectal cancer patients treated by EAPR and APR, respectively.

methodsAn electronic literature search of MEDLINE, EMBASE, and Cochrane Library through May 2013 was performed by two investigators independently to identify studies evaluating the CRM involvement, IOP, and LR rates of EAPR and APR, and search results were cross-checked to reach a consensus. Data was extracted accordingly. A Mantel-Haenszel random effects model was used to calculate the odds ratio (OR) with 95 % confidence intervals (95 % CI).

resultsSix studies with a total of 881 patients were included. Meta-analysis of CRM involvement and IOP data from all six studies demonstrated significant lower CRM involvement (OR, 0.36; 95%CI, 0.23-0.58; P < 0.0001) and IOP (OR, 0.31; 95%CI, 0.12-0.80; P = 0.02) rates of EAPR. Data from four studies also showed that EAPR was associated with a lower LR rate than APR (OR, 0.27; 95%CI, 0.08-0.95; P = 0.04). No differences of between-study heterogeneity or publication bias were seen in any of the meta-analyses.

conclusionsExtralevator abdominoperineal resection could achieve better CRM involvement outcome and lower IOP and LR rates, demonstrating an oncological superiority over conventional abdominoperineal resection.

Indexed as

AbdomenChemoradiotherapy, AdjuvantHumansIntraoperative ComplicationsNeoadjuvant TherapyNeoplasm Recurrence, LocalPerineumRectal NeoplasmsRectumTreatment Outcome

Identifiers

PMID24385025
OpenAlexW2087678894

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.