Ignite Creation Date:
2024-05-05 @ 11:41 AM
Last Modification Date:
2024-10-26 @ 9:11 AM
Study NCT ID:
NCT00104000
Status:
COMPLETED
Last Update Posted:
2008-03-04
First Post:
2005-02-17
Brief Title:
Effect of Surface Electrical Stimulation on Movement of the Larynx
Sponsor:
National Institute of Neurological Disorders and Stroke NINDS
Organization:
National Institutes of Health Clinical Center CC
Study Overview
Official Title:
The Effect of Surface Electrical Stimulation on Hyo-Laryngeal Movement in Healthy Individuals at Rest and During Swallow
Status:
COMPLETED
Status Verified Date:
2006-01
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
This study will examine whether surface electrical stimulation on the skin of the throat will 1 move the larynx voice box 2 move the vocal folds in the larynx and 3 cause less movement of the larynx when applied during swallowing It is important that the larynx moves up and forward while swallowing so that food does not go into the airway A device called VitalStim Registered Trademark which provides electrical stimulation to the skin on the neck and under the chin is widely used to treat people who have problems swallowing This study will determine if VitalStim can move the voice box or the vocal folds in the larynx This information is important for patients who have long-term problems raising or closing their larynxes when they swallow
Healthy volunteers between 20 and 60 years of age may be eligible for this study Candidates are screened with a medical history physical examination electrocardiogram and nasoendoscopy For the latter procedure the inside of the subjects nose is sprayed with a decongestant opening the nasal passages A small flexible tube called a nasoendoscope is passed through the nose to the back of the throat The scope allows observation of the larynx while the subject speaks sings whistles and makes prolonged vowel sounds
Participants are familiarized with the VitalStim device before beginning the experimental procedures The device consists of two sets of electrodes and a stimulation unit The electrodes are placed on the neck and under the chin Stimulation causes different sensations according to the intensity level They include tinglingcrawling vibrating warmburning and grabbing Subjects then undergo the following procedures
Nasoendoscopy with muscle stimulation The inside of the nose is sprayed with a decongestant and the nasoendoscope is passed through one nostril to the back of the throat Electrodes are placed on the throat area and under the chin Stimulation is delivered 10 times at various places on the neck and under the chin while the subject sits quietly This test shows if the vocal folds in the voice box move with surface electrical stimulation
Videofluoroscopy with muscle stimulation at rest and during swallowing This is an x-ray study of the head and neck during swallowing and at rest to determine how stimulation affects the level of the voice box in the neck Electrodes are placed under the chin and on the throat The subject swallows 5 milliliters of barium a contrast material that can be seen easily on x-ray The x-ray machine is turned on for a few seconds at a time during each swallow of the barium and another 10 times while the subject is remaining still without swallowing
Healthy volunteers between 20 and 60 years of age may be eligible for this study Candidates are screened with a medical history physical examination electrocardiogram and nasoendoscopy For the latter procedure the inside of the subjects nose is sprayed with a decongestant opening the nasal passages A small flexible tube called a nasoendoscope is passed through the nose to the back of the throat The scope allows observation of the larynx while the subject speaks sings whistles and makes prolonged vowel sounds
Participants are familiarized with the VitalStim device before beginning the experimental procedures The device consists of two sets of electrodes and a stimulation unit The electrodes are placed on the neck and under the chin Stimulation causes different sensations according to the intensity level They include tinglingcrawling vibrating warmburning and grabbing Subjects then undergo the following procedures
Nasoendoscopy with muscle stimulation The inside of the nose is sprayed with a decongestant and the nasoendoscope is passed through one nostril to the back of the throat Electrodes are placed on the throat area and under the chin Stimulation is delivered 10 times at various places on the neck and under the chin while the subject sits quietly This test shows if the vocal folds in the voice box move with surface electrical stimulation
Videofluoroscopy with muscle stimulation at rest and during swallowing This is an x-ray study of the head and neck during swallowing and at rest to determine how stimulation affects the level of the voice box in the neck Electrodes are placed under the chin and on the throat The subject swallows 5 milliliters of barium a contrast material that can be seen easily on x-ray The x-ray machine is turned on for a few seconds at a time during each swallow of the barium and another 10 times while the subject is remaining still without swallowing
Detailed Description:
Objectives
The purpose of the current study is to determine whether
1 Surface electrical stimulation at rest using various electrode placements produces different hyo-laryngeal movements of in healthy adult humans
2 One surface electrical stimulation array placement 3b reduces hyo-larynegeal movement in healthy humans during swallowing
Study Population healthy adults
Design This study will employ a repeated measures design Surface electrodes will be used to stimulate submental and laryngeal muscles either alone or in combination both at rest and during swallowing while using videofluoroscopy and nasolaryngoscopy to record hyo-laryngeal movement
Outcome Measures Kinematic analyses of hyo-laryngeal movements using image processing and marking from video-recordings will quantify movement with stimulation
The purpose of the current study is to determine whether
1 Surface electrical stimulation at rest using various electrode placements produces different hyo-laryngeal movements of in healthy adult humans
2 One surface electrical stimulation array placement 3b reduces hyo-larynegeal movement in healthy humans during swallowing
Study Population healthy adults
Design This study will employ a repeated measures design Surface electrodes will be used to stimulate submental and laryngeal muscles either alone or in combination both at rest and during swallowing while using videofluoroscopy and nasolaryngoscopy to record hyo-laryngeal movement
Outcome Measures Kinematic analyses of hyo-laryngeal movements using image processing and marking from video-recordings will quantify movement with stimulation
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
None
Secondary IDs
| Secondary ID | Type | Domain | Link |
|---|---|---|---|
| 05-N-0099 | None | None | None |