![]() ![]() Venous (vTOS) from subclavian vein compression: Surgery (if previous measures haven’t been effective).Neurogenic (nTOS) from brachial plexus compression: Treatment depends on which structure is being compressed and the severity of the symptoms. Repetitive motions of the area with raised arms, such as in swimming, tennis, throwing, and carrying heavy objects over your head.Vascular studies (an examination of the arteries and veins).To exclude other possible conditions with overlapping symptoms and diagnose TOS, you may have an electromyography and imaging scans, such as a chest x-ray or MRI (magnetic resonance imaging). Medical tests to diagnose thoracic outlet syndrome Pallor (an unhealthy, pale-looking appearance).Symptoms of arterial (aTOS) from subclavian artery compression may include: ![]() An increased risk of thrombosis in the affected arm.Swelling of the arm on the affected side.Cyanosis (a bluish or purplish skin discolouration).Symptoms of venous (vTOS) from subclavian vein compression may include: Wasting away of the hand muscles (atrophy).Symptoms of neurogenic (nTOS) from brachial plexus compression may include: They can also vary between individuals and be intermittent. Symptoms can vary depending on the type of TOS. If left untreated, certain types of TOS can cause serious blood clots, nerve damage, permanent arm swelling and pain, as well as gangrene from loss of blood flow. The subclavian arteries are two major arteries in the thorax that lie beneath each clavicle (collarbone). Arterial (aTOS) from subclavian artery compression.The subclavian vein is one of the deep veins in your neck. Venous (vTOS) from subclavian vein compression.The brachial plexus is a network of nerves that sends signals to your shoulder, arm and hand from the spinal cord Neurogenic (nTOS) from brachial plexus compression - the most common type of TOS.Thoracic outlet syndrome (TOS) is an umbrella term for conditions that involve the compression of neurovascular structures over the thoracic area, from the lower neck to the armpit.Įach type of TOS is referred to by the structure that is being predominantly affected: Edited by: Carlota Pano What is thoracic outlet syndrome (TOS)? ![]()
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