Evidence map›Paper›PMID 31481120›Full record

SynthesisJournal of otolaryngology - head & neck surgery = Le Journal d'oto-rhino-laryngologie et de chirurgie cervico-faciale2019

Systematic review and meta-analysis of T1 glottic cancer outcomes comparing CO

Michael F Vaculik, Colin A MacKay, S Mark Taylor, Johnathan R B Trites, Robert D Hart, Matthew H Rigby

Open access · goldAbstract readComparative StudyMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Journal of otolaryngology - head & neck surgery = Le Journal d'oto-rhino-laryngologie et de chirurgie cervico-faciale, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
7.6field-weighted citation impact, top 2% 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

35 citing papers in PubMed, 80 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Injection laryngoplasty during transoral laser microsurgery for early glottic cancer: a randomized controlled trial.Journal of otolaryngology - head & neck surgery = Le Journal d'oto-rhino-laryngologie et de chirurgie cervico-faciale · 2022
    Trial
  4. Review
  5. Exploratory assessment of an endolaryngeal surgical model with a novel hyperangulated 3D printed laryngoscope.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2025
    Article
  6. Article
  7. Article
  8. Trends in Treatment Choice for Early Glottic Cancer.Journal of clinical medicine · 2025
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Treatment of Early Glottic cancer with Transoral Laser Microsurgery: An Australian Experience.Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India · 2023
    Article
  16. Multidimensional Voice Assessment After Management of Early Laryngeal Cancer: A Comparative Study.Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India · 2023
    Article
  17. Article
  18. Article
  19. Article
  20. The outcome of early-stage glottic carcinoma patients treated with radiotherapy: Egyptian National Cancer Institute (NCI-Egypt) experience.Reports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology · 2023
    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 1 institution in 1 country.

Michael F VaculikDalhousie Medical School, Dalhousie University, Halifax, Nova Scotia, Canada.
Colin A MacKayDalhousie Division of Otolaryngology - Head and Neck Surgery, Dalhousie University, Suite 3044, Dickson Bldg. 5820 University Avenue, Halifax, NS, B3H 1V9, Canada.
S Mark TaylorDalhousie Division of Otolaryngology - Head and Neck Surgery, Dalhousie University, Suite 3044, Dickson Bldg. 5820 University Avenue, Halifax, NS, B3H 1V9, Canada.
Johnathan R B TritesDalhousie Division of Otolaryngology - Head and Neck Surgery, Dalhousie University, Suite 3044, Dickson Bldg. 5820 University Avenue, Halifax, NS, B3H 1V9, Canada.
Robert D HartDalhousie Division of Otolaryngology - Head and Neck Surgery, Dalhousie University, Suite 3044, Dickson Bldg. 5820 University Avenue, Halifax, NS, B3H 1V9, Canada.
Matthew H RigbyDalhousie Division of Otolaryngology - Head and Neck Surgery, Dalhousie University, Suite 3044, Dickson Bldg. 5820 University Avenue, Halifax, NS, B3H 1V9, Canada. mhrigby@dal.ca.
Dalhousie University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe objective of this study is to compare the oncologic outcomes of CO

methodsA literature search was conducted in the following databases: Medline/PubMed, Web of Science, EMBASE, and the Cochrane Library. Search results were screened, and publications comparing oncologic outcomes of T1N0M0 glottic carcinoma treated with TLM or RT were included. Data was extracted independently by two authors, and publication quality was graded according to the Oxford Centre for Evidence-based Medicine. Meta-analysis was performed for overall survival, disease specific survival, laryngeal preservation, and local control.

resultsSixteen studies were included in the meta-analysis, the majority being retrospective cohort studies with two prospective cohort studies. Included studies were rated as either Level II or III evidence. Meta-analysis favoured treatment with TLM for T1 glottic carcinoma patients for the following outcomes: overall survival (odds ratio [OR], 1.52; 95% confidence interval [CI], 1.07-2.14; P = 0.02), disease specific survival (OR, 2.70; CI, 1.32-5.54; P = 0.007), and laryngeal preservation (OR, 6.31; CI, 3.77-10.56; P < 0.00001). There was no difference in local control between TLM and RT in T1 glottic cancer (OR, 1.19; CI, 0.79-1.81; P = 0.40). DISCUSSION: Our study provides a current and thorough comparison of TLM and RT outcomes in T1 glottic carcinoma. Limitations of our study include lack of randomized control trials, and non-randomized allocation of patients to treatment groups. Our meta-analysis suggests that TLM is the superior modality in terms of overall survival, disease specific survival, and laryngeal preservation. Future prospective randomized controlled studies are required for confirming these findings and developing appropriate clinical practice guidelines. LEVEL OF EVIDENCE: 2A; as per the Centre of Evidence Based Medicine.

Indexed as

Laser TherapyMicrosurgeryGlottisHumansLaryngeal NeoplasmsNatural Orifice Endoscopic SurgerySurvival RateTreatment OutcomeEarly glottic cancerRadiotherapySurvivalTransoral laser microsurgery

Identifiers

PMID31481120
PMCPMC6724253
OpenAlexW2972193436

What OpenQuestion holds

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LicenceCC BY
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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.