Management of Thoracic Outlet Syndrome
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Definition/Description[edit | edit source]
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Epidemiology/Etiology[edit | edit source]
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Characteristics/Clinical Presentation[edit | edit source]
Signs and symptoms of thoracic outlet syndrome are variable from patient to patient due to the location of nerve and/or vascular involvement. Symptoms range from mild pain and sensory changes to limb threatening complications in severe cases. Patients with thoracic outlet syndrome will most likely present with paresthesia in upper extremity, neck pain, trapezius pain, supraclavicular pain, chest pain, and occipital pain. Patients with upper plexus (C5,6,7) involvement can present with pain in anterior neck from the clavicle up to and including the mandible, ear, and mastoid region. These symptoms can continue into the anterior chest, scapular region, trapezius and into lateral part of the arm continuing all the way to the thumb and index finger. Patients with lower plexus (C8,T1) involvement typically present with symptoms along the medial side of the arm and hand with potential involvement in the anterior shoulder and axillary region. There are four categories of thoracic outlet syndrome and each presents with unique signs and symptoms (see Table 1). Typically thoracic outlet syndrome does not follow a dermatomal or myotomal pattern unless there is nerve root involvement which will be important in determining your PT diagnosis and planning your treatment.
Arterial TOS | Venous TOS | True TOS | Disputed Neurogenic TOS |
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Differential Diagnosis[edit | edit source]
Due the variability of presentation TOS can be difficult to tease out from other pathologies with common presentations. A thorough history and evaluation must be done to determine if the patient’s symptoms are truly TOS. The following pathologies are common differential diagnosis for TOS:
• Carpal tunnel syndrome
• DeQuervain’s tenosynovitis
• Lateral/medial epicondylitis
• Complex regional pain syndrome
• Horner’s Syndrome
• Raynaud’s disease
• Nerve root involvement
Systematic causes of brachial plexus pain include:
• Pancoast’s Syndrome
• Radiation induced brachial plexopathy
• Parsonage Turner Syndrome
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