Journal
BRAIN STIMULATION
Volume 16, Issue 2, Pages 507-514Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.brs.2023.02.008
Keywords
Transcutaneous auricular vagus nerve; stimulation; Sepsis; Serum cytokine levels; APACHE II score; SOFA score
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This randomized, double-blind, sham-controlled pilot study aimed to explore the efficacy of transcutaneous auricular vagus nerve stimulation (taVNS) on inflammation and disease severity of sepsis patients. The results showed that patients receiving taVNS experienced significant reductions in pro-inflammatory cytokines and increases in anti-inflammatory cytokines. Based on these findings, it can be concluded that taVNS has a significant therapeutic effect on sepsis patients.
Background: Studies have shown that vagus nerve-mediated inflammatory reflex could inhibit cytokine production and inflammation in sepsis animals.Objectives: This study aimed to explore the efficacy of transcutaneous auricular vagus nerve stimulation (taVNS) on inflammation and disease severity of sepsis patients.Methods: A randomized, double-blind, sham-controlled pilot study was performed. Twenty sepsis pa-tients were randomly assigned to receive taVNS or sham stimulation for five consecutive days. Stimu-lation effect was assessed with serum cytokine levels, Acute Physiology and Chronic Health Evaluation (APACHE) II score, and Sequential Organ Failure Assessment (SOFA) score at baseline and on Day 3, Day 5, and Day 7.Results: TaVNS was well tolerated in the study population. Patients receiving taVNS experienced sig-nificant reductions in serum TNF-a and IL-1b levels and increases in IL-4 and IL-10 levels. SOFA scores decreased on Day 5 and Day 7 compared with baseline in the taVNS group. However, no changes were found in sham stimulation group. The changes of cytokine from Day 7 to Day 1 were greater with taVNS than sham stimulation. No differences in the APACHE II score and SOFA score were observed between the two groups.Conclusions: TaVNS resulted in significantly lower serum pro-inflammatory cytokines and higher serum anti-inflammatory cytokines in sepsis patients.(c) 2023 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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