Adson's sign
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| Adson's sign | |
|---|---|
| |
| Synonyms | |
| Pronounce | |
| Specialty | Vascular surgery, Orthopedic surgery |
| Symptoms | Diminished or absent radial pulse |
| Complications | |
| Onset | |
| Duration | |
| Types | |
| Causes | Compression of the subclavian artery |
| Risks | |
| Diagnosis | Physical examination |
| Differential diagnosis | |
| Prevention | |
| Treatment | |
| Medication | |
| Prognosis | |
| Frequency | |
| Deaths | |
This template provides a structured infobox for the medical condition known as Adson's sign, which is used to assess for thoracic outlet syndrome by evaluating the radial pulse when the patient turns their head and inhales deeply.Adson's sign is a medical test used primarily in the diagnosis of thoracic outlet syndrome (TOS). The test is named after American neurologist Alfred Washington Adson.
Procedure[edit | edit source]
The Adson's test is performed by having the patient elevate their chin, turn their head to the side of the symptoms, and take a deep breath and hold it. The physician then takes the radial pulse on the same side. If the pulse disappears or diminishes, this is a positive Adson's sign.
Interpretation[edit | edit source]
A positive Adson's sign suggests that the subclavian artery and/or brachial plexus is being compressed in the scalene triangle, which is a common site of compression in thoracic outlet syndrome.
Limitations[edit | edit source]
The Adson's test has been criticized for its lack of specificity and sensitivity. It is often positive in healthy individuals and can be negative in patients with thoracic outlet syndrome. Therefore, it should not be used as a standalone test for diagnosing TOS.
See also[edit | edit source]
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Contributors: Prab R. Tumpati, MD
