Evidence map›Paper›PMID 32124047›Full record

SynthesisInternational journal of colorectal disease2020

Meta-analysis of transanal total mesorectal excision versus laparoscopic total mesorectal excision in management of rectal cancer.

Shahin Hajibandeh, Shahab Hajibandeh, Mokhtar Eltair, Anil T George, Vijay Thumbe, Andrew W Torrance, Misra Budhoo, Howard Joy, Rajeev Peravali

Abstract readComparative StudyMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in International journal of colorectal disease, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
2.8field-weighted citation impact, top 7% 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

24 citing papers in PubMed, 2 syntheses or guidelines pooled it, 44 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
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  6. Review
  7. Article
  8. Review
  9. Incidence and Risk Factors of Surgical Complications and Anastomotic Leakage After Transanal Total Mesorectal Excision for Middle and Low Rectal Cancer.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2023
    Article
  10. Article
  11. Meta-analysis of transanalWorld journal of gastrointestinal surgery · 2022
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. The learning curve of transanal total mesorectal excision for rectal cancer is associated with local recurrence: results from a multicentre external audit.Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland · 2021
    Article
  19. Article
  20. 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

9 authors at 2 institutions in 1 country.

Shahin HajibandehDepartment of General Surgery, Sandwell and West Birmingham Hospitals NHS Trust, Birmingham, UK. shahin_hajibandeh@yahoo.com.
Shahab HajibandehDepartment of General Surgery, Glan Clwyd Hospital, Rhyl, Denbighshire, UK.
Mokhtar EltairDepartment of General Surgery, Sandwell and West Birmingham Hospitals NHS Trust, Birmingham, UK.
Anil T GeorgeDepartment of General Surgery, Sandwell and West Birmingham Hospitals NHS Trust, Birmingham, UK.
Vijay ThumbeDepartment of General Surgery, Sandwell and West Birmingham Hospitals NHS Trust, Birmingham, UK.
Andrew W TorranceDepartment of General Surgery, Sandwell and West Birmingham Hospitals NHS Trust, Birmingham, UK.
Misra BudhooDepartment of General Surgery, Sandwell and West Birmingham Hospitals NHS Trust, Birmingham, UK.
Howard JoyDepartment of General Surgery, Sandwell and West Birmingham Hospitals NHS Trust, Birmingham, UK.
Rajeev PeravaliDepartment of General Surgery, Sandwell and West Birmingham Hospitals NHS Trust, Birmingham, UK.
Sandwell & West Birmingham Hospitals NHS Trust · GBGlan Clwyd Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo evaluate comparative outcomes of transanal total mesorectal excision (TaTME) and laparoscopic TME (LaTME) in patients with rectal cancer.

methodsWe systematically searched multiple databases and bibliographic reference lists. A combination of free text and controlled vocabulary search adapted to thesaurus headings, search operators, and limits were applied. Overall intraoperative complications, overall postoperative complications, anastomotic leak, surgical site infections (SSIs), completeness of mesorectal excision, R0 resection, distal (DRM) and circumferential resection margin (CRM), number of harvested lymph nodes, and procedure time were the evaluated outcome parameters.

resultsWe identified 18 comparative studies reporting a total of 2048 patients evaluating outcomes of TaTME (n = 1000) and LaTME (n = 1048) in patients with rectal cancer. TaTME was associated with significantly higher number of R0 resection (OR 1.67, P = 0.01) and harvested lymph nodes (MD 1.08, P = 0.01), and lower rate of positive CRM (OR 0.67, P = 0.04) and conversion to an open procedure (OR 0.17, P < 0.00001) compared with LaTME. However, there was no significant difference in intraoperative complications (OR 1.18, P = 0.54), postoperative complications (OR 0.89, P = 0.24), anastomotic leak (OR 0.88, P = 0.42), SSIs (OR 0.64, P = 0.26), completeness of mesorectal excision (OR 1.43, P = 0.19), DRM (MD 1.87, P = 0.16), CRM (MD 0.36, P = 0.58), and procedure time (MD - 10.87, P = 0.18) between TaTME and LaTME. Moreover, for low rectal tumours, TaTME was associated with significantly lower rate of anastomotic leak and higher number of lymph nodes (MD 2.06, P = 0.002).

conclusionsAlthough the meta-analysis of best available evidence (level 2) demonstrated that TaTME may be associated with better short-term oncological outcomes and similar clinical outcomes compared with LaTME, the differences between the two groups were small questioning their clinical relevance. No solid conclusions can be made due to lack of high quality randomised studies.

Indexed as

LaparoscopyAgedAnal CanalAnastomotic LeakConversion to Open SurgeryFemaleHumansIntraoperative ComplicationsLymph NodesMaleMiddle AgedObservational Studies as TopicPostoperative ComplicationsPublication BiasRectal NeoplasmsRectumLaparoscopicRectal cancerTotal mesorectal excisionTransanal

Identifiers

PMID32124047
OpenAlexW3010190380

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.