Evidence map›Paper›PMID 33705401›Full record

SynthesisPloS one2021

Tinnitus treatment by vagus nerve stimulation: A systematic review.

I Stegeman, H M Velde, P A J T Robe, R J Stokroos, A L Smit

Registry-linked trialOpen access · goldAbstract readSystematic Review
In one paragraph

Synthesis in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07711639 (Efficacy of Foot Reflexology and Transcutaneous Auricular Vagus Nerve Stimulation on Tinnitus in Non-Cancer Adult Populations), which is not on this map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
3.3field-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.

NCT07711639 narecruitingnot on this mapstarted 2026, after this paper: background citation

Efficacy of Foot Reflexology and Transcutaneous Auricular Vagus Nerve Stimulation on Tinnitus in Non-Cancer Adult Populations

TypeinterventionalSponsorTzu Chi UniversityRan2026 to 2028Enrolled180ConditionsTinnitusArmsTrue Foot Reflexology, Sham Foot Reflexology, True ta-VNS, Sham ta-VNS, True Auricular Acupressure
3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 43 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Tinnitus in Children.Journal of the Association for Research in Otolaryngology : JARO · 2024
    Review
  9. Article
  10. Review
  11. Review
  12. Review
  13. Article
  14. Recent Updates on Tinnitus Management.Journal of audiology & otology · 2023
    Review
  15. Article
  16. Review
  17. Review
  18. 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

5 authors at 1 institution in 1 country.

I StegemanDepartment of Otorhinolaryngology, Head and Neck Surgery, University Medical Center Utrecht, Utrecht, Netherlands.ORCID 0000-0001-5154-7178
H M VeldeDepartment of Otorhinolaryngology, Head and Neck Surgery, University Medical Center Utrecht, Utrecht, Netherlands.ORCID 0000-0002-9408-5433
P A J T RobeUniversity Medical Center Utrecht Brain Center, University Medical Center Utrecht, Utrecht, Netherlands.ORCID 0000-0001-7845-6196
R J StokroosDepartment of Otorhinolaryngology, Head and Neck Surgery, University Medical Center Utrecht, Utrecht, Netherlands.
A L SmitDepartment of Otorhinolaryngology, Head and Neck Surgery, University Medical Center Utrecht, Utrecht, Netherlands.
University Medical Center Utrecht · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTinnitus is a phantom sensation of sound, which can have a negative impact on quality of life of those affected. No curative treatments are currently known. Neuromodulation by vagus nerve stimulation has emerged as a new treatment option for tinnitus, though till date the effectiveness remains unclear. Therefore, we aim to review the effect of vagus nerve stimulation on tinnitus distress and tinnitus symptom severity in patients with chronic tinnitus.

methodsWe searched Pubmed, Embase and the Cochrane Library systematically for RCTs, observational studies and case studies on the effect of VNS treatment for tinnitus on October 29, 2019. Studies including adult patients with subjective tinnitus, comparing transcutaneous or implantable VNS to placebo or no treatment or before and after application of VNS treatment on tinnitus distress and tinnitus symptom severity measured with a validated questionnaire were eligible. The risk of bias was assessed with the appropriate tool for each type of study.

resultsOur search identified 9 primary studies of which 2 RCTs, 5 cohort studies and 2 case series or reports. 5 studies used transcutaneous VNS treatment and 4 used implanted VNS treatment. 6 studies combined VNS treatment with sound therapy. There was a serious risk of bias in all studies, especially on confounding. Most studies reported a small decrease in tinnitus distress or tinnitus symptom severity.

conclusionDue to methodological limitations and low reporting quality of the included studies, the effect of VNS on tinnitus remains unclear. To draw conclusions for which patient population and to what extent (t)VNS is beneficial in the treatment of tinnitus, a randomised controlled trial should be considered.

Indexed as

Acoustic StimulationFemaleHumansMaleQuality of LifeSoundTinnitusTreatment OutcomeVagus NerveVagus Nerve Stimulation

Identifiers

PMID33705401
PMCPMC7951891
OpenAlexW3135256656

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.