ArticleClinical autonomic research : official journal of the Clinical Autonomic Research Society2026
Vagus nerve stimulation and pulmonary outcomes: a scoping review of preclinical and clinical evidence.
Article in Clinical autonomic research : official journal of the Clinical Autonomic Research Society, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
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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.
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Authors and funding
3 authors.
Funding
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Abstract
backgroundVagus nerve stimulation (VNS) is a neuromodulatory intervention with antiinflammatory and autonomic regulatory properties. Although its clinical applications have primarily been explored in neurological disorders, its potential role in pulmonary and respiratory outcomes across preclinical and clinical settings remains incompletely characterized and dispersed across different study domains. This scoping review aimed to map the available evidence on the effects of VNS on the pulmonary and respiratory systems, with particular emphasis on inflammatory and autonomic mechanisms.
methodsThis scoping review was conducted in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR) guidelines. Three reviewers systematically searched PubMed, Web of Science, and the Cochrane Library for studies published between January 2020 and February 2026. Original preclinical and clinical studies investigating invasive or noninvasive VNS and reporting pulmonary, respiratory physiology, autonomic, or inflammatory outcomes were included.
resultsA total of 159 records were identified, of which 12 studies met the inclusion criteria. The evidence base was predominantly preclinical. In animal studies, invasive cervical VNS was frequently associated with reductions in pulmonary inflammation, histopathological lung injury, and proinflammatory cytokine expression. Clinical studies were limited and heterogeneous, but generally indicated variable modulation of autonomic function, including changes in parasympathetic activity, as well as heterogeneous effects on systemic inflammatory markers and limited respiratory outcomes.
conclusionsCurrent evidence suggests that VNS may modulate pulmonary inflammatory responses in preclinical models. However, clinical evidence remains limited and heterogeneous, particularly regarding autonomic and respiratory outcomes. Well-designed clinical trials using standardized stimulation protocols and predefined respiratory end points are needed to clarify its therapeutic potential in respiratory disorders.
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Registered trials
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