Effects of Transcutaneous Vagal Nerve Stimulation on Hemodynamics Parameters

NCT ID: NCT03000842

Last Updated: 2016-12-22

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

28 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-01-31

Study Completion Date

2017-06-30

Brief Summary

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The vagal stimulation is a promising therapy for a lot of disorders as well as hemodynamic regulatory way. In order to minimize the harm of a surgery chip implantation, actually it was developing a non-invasive device that is able to stimulate the auricular branch of vagal nerve. It has been shown that trans-auricular vagal stimulation (tVNS) causes direct stimulation of the vagal nerve. However, there are still no strong evidences about it actions regarding the autonomic modulation. The aim of this study is to evaluate effects of tVNS on heart rate, blood pressure and the autonomic control in healthy and hypertensive subjects, at rest and after orthostatic position

Detailed Description

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Conditions

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Hypertension

Keywords

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autonomic control transcutaneous vagal nerve stimulation transauricular vagal nerve stimulation

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

SINGLE

Investigators

Study Groups

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Healthy Subjects

transcutaneous vagal nerve stimulation

Group Type EXPERIMENTAL

transcutaneous vagal nerve stimulation on

Intervention Type DEVICE

electrical current on positioned in the ear to estimate vagal branch of auricular nerve

transcutaneous vagal nerve stimulation off

Intervention Type DEVICE

an electrical current off positioned in the ear to estimate vagal branch of auricular nerve

Hypertensive Subjects

transcutaneous vagal nerve stimulation

Group Type EXPERIMENTAL

transcutaneous vagal nerve stimulation on

Intervention Type DEVICE

electrical current on positioned in the ear to estimate vagal branch of auricular nerve

transcutaneous vagal nerve stimulation off

Intervention Type DEVICE

an electrical current off positioned in the ear to estimate vagal branch of auricular nerve

Interventions

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transcutaneous vagal nerve stimulation on

electrical current on positioned in the ear to estimate vagal branch of auricular nerve

Intervention Type DEVICE

transcutaneous vagal nerve stimulation off

an electrical current off positioned in the ear to estimate vagal branch of auricular nerve

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* healthy volunteers
* sign the consent term


* hypertensive diagnosis (with or without anti-hypertensive drugs treatment) or
* ambulatory blood pressure monitoring (ABPM) \>130/85
* sign the consent term

Exclusion Criteria

* smokers
* alcoholism
* drug treatment
* skin lesion in the ear region
* chronic or acute diseases
* pregnancy
* be participating in another research protocol
* high performance athletes
* recent surgery
* vaso-vagal syndrome


* smokers
* alcoholism
* beta-blockers treatment
* skin lesion in the ear region
* associated diseases
* pregnancy
* be participating in another research protocol
* high performance athletes
* recent surgery
* vaso-vagal syndrome
Minimum Eligible Age

18 Years

Maximum Eligible Age

59 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Instituto de Cardiologia do Rio Grande do Sul

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Other Identifiers

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5260/16

Identifier Type: -

Identifier Source: org_study_id