Evidence map›Paper›PMID 42793404›Full record

ReviewBrain sciences2026

Awakening the Vagus: Transcutaneous Auricular Vagus Nerve Stimulation-A Narrative Review.

Lara Portincaso, Gaia Chiara Santi, Nicole Villa, Davide Antonio Di Pietro

Abstract readReview
In one paragraph

Review in Brain sciences, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

4 authors.

Lara PortincasoIstituti Clinici Zucchi, Gruppo San Donato, 20841 Carate Brianza, Monza Brianza, Italy.ORCID 0009-0001-8295-0426
Gaia Chiara SantiNeurorehabilitation Unit of the Institute of Lumezzane, Istituti Clinici Scientifici Maugeri IRCCS, 25065 Lumezzane, Brescia, Italy.ORCID 0000-0002-9253-6122
Nicole VillaNeurorehabilitation Unit of the Institute of Lumezzane, Istituti Clinici Scientifici Maugeri IRCCS, 25065 Lumezzane, Brescia, Italy.ORCID 0009-0001-6045-5213
Davide Antonio Di PietroNeurorehabilitation Unit of the Institute of Lumezzane, Istituti Clinici Scientifici Maugeri IRCCS, 25065 Lumezzane, Brescia, Italy.ORCID 0000-0001-5261-3595

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Disorders of consciousness (DoC), including unresponsive wakefulness syndrome/vegetative state (UWS/VS) and minimally conscious state (MCS), remain a major challenge in clinical neurology. Therapeutic options are limited, and prognosis is often uncertain. Transcutaneous stimulation of the auricular branch of the vagus nerve (taVNS) is a non-invasive neuromodulation technique that has gained increasing interest as a potential strategy to promote recovery of consciousness. This narrative review summarizes the anatomical and functional rationale of taVNS, compares invasive and non-invasive vagus nerve stimulation techniques, reviews the biological mechanisms underlying its effects, discusses established clinical applications, technological innovations, and available clinical trial evidence. Current data suggest that taVNS is safe and well-tolerated, with preliminary evidence of applicability in DoC, particularly in patients with MCS. However, heterogeneity in stimulation protocols and the limited number of large-scale randomized controlled trials highlight the need for further standardized research.

Indexed as

ascending reticular activating systemauricular vagus nerve stimulationdisorders of consciousnessminimally conscious stateneuromodulationnon-invasive brain stimulationthalamocortical connectivityunresponsive wakefulness syndrome

Identifiers

PMID42793404
PMCPMC13604547

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.