Sex and Age Ultrasound Response to Differential Jugular Vein Pressure
1 other identifier
interventional
155
1 country
1
Brief Summary
Clinical trials have suggested that this device is effective in mitigating changes in brain structure and function in athlete populations. The purpose of the current study is to measure the response of the jugular vein to various pressures applied by a generic compression device across various ages and gender. The relative jugular vein response will be measured using ultrasound.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Nov 2016
Typical duration for not_applicable
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
November 1, 2016
CompletedFirst Submitted
Initial submission to the registry
January 10, 2017
CompletedFirst Posted
Study publicly available on registry
January 11, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
June 1, 2019
CompletedResults Posted
Study results publicly available
November 17, 2020
CompletedNovember 17, 2020
October 1, 2020
2.1 years
January 10, 2017
July 28, 2020
October 26, 2020
Conditions
Outcome Measures
Primary Outcomes (1)
Neck Collar Size
measurement of the neck collar size at each pressure level
1 hour
Study Arms (1)
Q- collar
EXPERIMENTALAll subjects will wear 3 sizes of the q-collar and ultrasound images of the jugular vein will be measured with each collar. Also, each subject will wear a pressure collar and ultrasound images of the jugular vein will be captured at each pressure point (0.1-0.5)
Interventions
Eligibility Criteria
You may qualify if:
- Normal healthy volunteer aged 7-60
- Able to provide written consent
- Able to tolerate hypercapnia for 1-2 minutes
You may not qualify if:
- Unable to provide written consent
- History of neurological deficits, previous cerebral infarction, or severe head trauma as indicated through pre-season screening:
- Medical contraindications to restriction of venous outflow via the internal jugular veins (known increased intracerebral pressure, metabolic acidosis or alkalosis)
- Glaucoma (Narrow Angle or Normal Tension)
- Hydrocephalus
- Recent penetrating brain trauma (within 6 months)
- Known carotid hypersensitivity
- Known increased intracranial pressure
- Central vein thrombosis
- Any known airway obstruction
- Any known seizure disorder
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Cincinnati Childrens Hospital Medical Center
Cincinnati, Ohio, 45229, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Kim Foss
- Organization
- Cincinnati Chidren's Hospital
Study Officials
- PRINCIPAL INVESTIGATOR
Gregory D Myer, PhD
Cincinnati Childrens Hospital
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- OTHER
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 10, 2017
First Posted
January 11, 2017
Study Start
November 1, 2016
Primary Completion
December 1, 2018
Study Completion
June 1, 2019
Last Updated
November 17, 2020
Results First Posted
November 17, 2020
Record last verified: 2020-10
Data Sharing
- IPD Sharing
- Will not share