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Thoracic outlet syndrome (TOS) is a condition in which there is compression of the nerves, arteries, or veins in the superior thoracic aperture, the passageway from the lower neck to the armpit, also known as the thoracic outlet. [1] There are three main types: neurogenic, venous, and arterial. [1]
thoracic outlet syndrome Wright's test is a clinical sign in which the radial pulse weakens or disappears when the arm is abducted and externally rotated . [ 1 ] [ 2 ] It occurs in some patients with thoracic outlet syndrome .
The most significant impact of magnetic resonance neurography is on the evaluation of the large proximal nerve elements such as the brachial plexus (the nerves between the cervical spine and the underarm that innervate shoulder, arm and hand), [9] the lumbosacral plexus (nerves between the lumbosacral spine and legs), the sciatic nerve in the pelvis, [10] as well as other nerves such as the ...
Thrombolysis is typically performed prior to first rib resection for venous thoracic outlet syndrome. First rib resection is indicated for venous , arterial , and neurogenic TOS. [ 1 ] In all cases, the goal of the operation is to increase the dynamic space between the chest wall and the clavicle , through which the subclavian vein, artery, and ...
Pectoralis minor syndrome (PMS) is a condition related to thoracic outlet syndrome (TOS) that results from the pectoralis minor muscle being too tight. [1] PMS results from the brachial plexus being compressed under the pectoralis minor [2] while TOS involves compression of the bundle above the clavicle. In most patients, the nerves are ...
The superior thoracic aperture is essentially a hole surrounded by a bony ring, through which several vital structures pass. It is bounded by: the first thoracic vertebra (T1) posteriorly; the first pair of ribs laterally, forming lateral C-shaped curves posterior to anterior; and the costal cartilage of the first rib and the superior border of the manubrium anteriorly.
Magnetic resonance angiography (MRA) is a group of techniques based on magnetic resonance imaging (MRI) to image blood vessels. Magnetic resonance angiography is used to generate images of arteries (and less commonly veins) in order to evaluate them for stenosis (abnormal narrowing), occlusions, aneurysms (vessel wall dilatations, at risk of rupture) or other abnormalities.
The treatment of each peripheral nerve entrapment has its own history, making any single narrative incomplete. [49] The symptoms of nerve injury in the early 1900s were called nerve palsy (today neuropathy or neuritis are more common terms). [50] The concept of injuries causing nerve palsy was understood at that time. [49]