Transcutaneous auricular vagus nerve stimulation for pediatric epilepsy: study protocol for a randomized controlled trial.

Abstract:

BACKGROUND:Recently, clinical observations reported the potential benefit of vagus nerve stimulation (VNS) for pediatric epilepsy. Transcutaneous auricular vagus nerve stimulation (ta-VNS) is a newer non-invasive VNS, making it more accessible for treating pediatric epilepsy, yet there is limited clinical evidence for its effectiveness. METHODS/DESIGN:A three-center, randomized, parallel, controlled trial will be carried out to evaluate whether ta-VNS improves pediatric epilepsy. Pediatric patients aged 2 to 14 years with epilepsy will be recruited and randomly assigned to transcutaneous auricular vagus nerve stimulation (ta-VNS) group, transcutaneous auricular non-vagus nerve stimulation (tan-VNS) group, and control group with a 1:1: sqrt(2) allocation, as per a computer generated randomization schedule stratified by study center using permuted blocks of random sizes. We will use Zelen's design, in which randomization occurs before informed consent. Patients in the stimulation groups will receive tan-VNS or ta-VNS three times a day for 6 months. Patients in the control group will not be provided with any stimulation during the 6 months. The guardians of the patients are required to keep a detailed diary to record the data. Outcome assessment including seizure frequency, electroencephalogram (EEG), heart rate variability (HRV) analysis, quality of life (QOL) and adverse events will be made at baseline and 2, 4 and 6 months after ta-VNS initiation. The seizure frequency and adverse events will be followed up at 1 year and 1.5 years after ta-VNS initiation. DISCUSSION:Results of this trial will help clarify whether ta-VNS treatment is beneficial for pediatric patients, and will make clear whether the anticonvulsive effect of ta-VNS is correlated with the improvement of sympathovagal imbalance. TRIAL REGISTRATION: CLINICAL TRIALS IDENTIFIER:NCT02004340 . Registration date: 13 November 2013.

journal_name

Trials

journal_title

Trials

authors

He W,Wang XY,Zhou L,Li ZM,Jing XH,Lv ZL,Zhao YF,Shi H,Hu L,Su YS,Zhu B

doi

10.1186/s13063-015-0906-8

subject

Has Abstract

pub_date

2015-08-21 00:00:00

pages

371

issn

1745-6215

pii

10.1186/s13063-015-0906-8

journal_volume

16

pub_type

杂志文章,多中心研究,随机对照试验

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