Thoracic Outlet Syndrome: Case Reports and Analysis With Ultrasound Imaging
- Conditions
- Thoracic Outlet Syndrome
- Registration Number
- NCT01196637
- Lead Sponsor
- EMG Labs of Arizona Arthritis & Rheumatology Associates
- Brief Summary
Thoracic outlet syndrome is caused by compression of the brachial plexus, in most cases under the pectoralis minor muscle in the infraclavicular region of the shoulder. The hypothesis is that ultrasound imaging can be used to visualize brachial plexus compression and distortion of the pectoralis muscle during arm activity, such as abduction, and that normal subjects will not demonstrate any plexus compression or muscle distortion.
- Detailed Description
Four patients with thoracic outlet syndrome (TOS) underwent clinical exam and nerve testing to prove that they had TOS and no other nerve abnormality. They subsequently had ultrasound imaging of the shoulder (infraclavicular region) at rest and during arm abduction stress testing. Two control subjects had similar clinical exams and nerve testing to prove they did not have TOS, and then underwent similar ultrasound stress testing. The TOS patients demonstrated brachial plexus compression and pectoralis minor muscle distortion during the stress tests, and the normal subjects showed no plexus compression or muscle distortion.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 6
Not provided
Not provided
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Brachial plexus compression on ultrasound imaging in thoracic outlet syndrome patients 4 months
- Secondary Outcome Measures
Name Time Method No brachial plexus compression in normal subjects 4 months
Trial Locations
- Locations (1)
EMG Labs of AARA
🇺🇸Paradise Valley, Arizona, United States