The Passy Muir Swallowing Self Training Device
PMSST
Passy-Muir Swallowing Self Training Device to Enhance Recovery Post Stroke
1 other identifier
observational
13
1 country
1
Brief Summary
This is a device evaluation study to determine the optimal stimulation characteristics for using vibrotactile stimulation as a sensory triggering device for self retraining in patients with chronic moderate to severe dysphagia. Stimulation characteristics to be tested are frequency of vibration, pressure between the device and the skin, mode of vibration (pulsed or continuous).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for all trials
Started Jan 2013
Typical duration for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 1, 2013
CompletedFirst Submitted
Initial submission to the registry
January 8, 2013
CompletedFirst Posted
Study publicly available on registry
January 10, 2013
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 22, 2016
CompletedStudy Completion
Last participant's last visit for all outcomes
February 22, 2016
CompletedResults Posted
Study results publicly available
November 14, 2017
CompletedNovember 14, 2017
September 1, 2017
3.1 years
January 8, 2013
May 20, 2017
October 17, 2017
Conditions
Keywords
Outcome Measures
Primary Outcomes (5)
Change in Swallow Frequency 30 Hz
Change in number of swallows per minute during stimulation minus swallows per minute during sham (wearing the device but no stimulation)
During one session within 1 hour
Change in Swallow Frequency 70 Hz
Change in number of swallows per minute during stimulation minus swallows per minute during sham (wearing the device but no stimulation)
During one session within 1 hour
Change in Swallow Frequency 110 Hz
Change in number of swallows per minute during stimulation minus swallows per minute during sham (wearing the device but no stimulation)
During one session within 1 hour
Change in Swallow Frequency 150 Hz
Change in number of swallows per minute during stimulation minus swallows per minute during sham (wearing the device but no stimulation)
During one session within 1 hour
Change in Swallowing Frequency 70 & 110 Hz
Change in number of swallows per minute during stimulation minus swallows per minute during sham (wearing the device but no stimulation)
During one session within 1 hour
Secondary Outcomes (15)
Change in Urge to Swallow After 30 Hz Stimulation
During one session within 1 hour
Change in Urge to Swallow 70 Hz
During one session within 1 hour
Change in VAS Urge to Swallow 110 Hz
During one session within 1 hour
Change in VAS Urge to Swallow 150 Hz
During one session within 1 hour
Change in VAS Urge to Swallow 70 & 110 Hz
During one session within 1 hour
- +10 more secondary outcomes
Study Arms (1)
Vibrotactile Stimulation in Dysphagia
A Vibrotactile stimulation device will be evaluated in patients with chronic moderate to severe dysphagia for more than 6 months post onset due to stroke or following radiation treatment for head and neck cancer to assess which frequency, mode, pressure characteristics are most helpful in increasing the rate of swallowing, increasing the urge to swallow, assisting with the initiation of swallowing and not affecting discomfort.
Interventions
Comparison of the effects of different vibratory characteristics on the frequency of swallowing, time of initiation of swallowing with stimulation and urge to swallow. Will compare frequency of vibration, mode of vibration, pressure of device against neck, and duration of vibration. Each session will last no more than 1 hour with short breaks. Each participant can volunteer for up to three nonconsecutive sessions.
Eligibility Criteria
Participants who have swallowing problems secondary to a stroke or following radiation for the treatment of head and neck cancer
You may qualify if:
- Stroke or post radiation for the treatment of head and neck cancer
- Dysphagia with a score of 2 or greater on the Penetration/Aspiration Scale OR a Mann Assessment of Swallowing Ability ordinal risk rating of "probable" or "definite"
You may not qualify if:
- Neck injury
- Epilepsy
- Neurological disorder other than stroke
- Psychiatric illness other than depression
- Uncontrolled gastroesophageal reflux disease
- Inability to communicate secondary to significant speech or language problems
- Inability to maintain alertness for 1 hour
- Significant health concerns that would put the participant at risk
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- James Madison Universitylead
- Passy Muir Inc.collaborator
Study Sites (1)
James Madison University and Rockingham Memorial Hospital
Harrisonburg, Virginia, 22801, United States
Related Publications (2)
Theurer JA, Bihari F, Barr AM, Martin RE. Oropharyngeal stimulation with air-pulse trains increases swallowing frequency in healthy adults. Dysphagia. 2005 Fall;20(4):254-60. doi: 10.1007/s00455-005-0021-1.
PMID: 16633868RESULTTheurer JA, Czachorowski KA, Martin LP, Martin RE. Effects of oropharyngeal air-pulse stimulation on swallowing in healthy older adults. Dysphagia. 2009 Sep;24(3):302-13. doi: 10.1007/s00455-009-9207-2. Epub 2009 Apr 24.
PMID: 19390893RESULT
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Limitations and Caveats
Recruitment was lower than anticipated, we were only able to recruit 12 participants rather than the 15 needed Participants found it burdensome to travel to the testing facility when there was no possible benefit to them for participation
Results Point of Contact
- Title
- Christy Ludlow
- Organization
- James Madison University
Study Officials
- PRINCIPAL INVESTIGATOR
Christy L Ludlow, PhD
James Madison University
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
January 8, 2013
First Posted
January 10, 2013
Study Start
January 1, 2013
Primary Completion
February 22, 2016
Study Completion
February 22, 2016
Last Updated
November 14, 2017
Results First Posted
November 14, 2017
Record last verified: 2017-09
Data Sharing
- IPD Sharing
- Will not share