Thoracic outlet syndrome can result due to injury, tumors that press nerves, poor posture that compresses nerves, weight lifting, anatomical defects such as an elongated C7 transverse process, anomalous tissue overgrowth, upper thoracic neurovascular compression, costocoracoid tendon, subclavian muscle hypertrophy and so on. The anatomy of this outlet is compressed of several muscles in the neck region and the first rib under these muscles. Thoracic Outlet Syndrome After an Accident Signs and Symptoms. There are three main types of thoracic outlet syndrome. The diagnosis of thoracic outlet syndrome is often missed even by experienced doctors. Thoracic outlet syndrome is a painful condition that occurs when your collarbone slides forward due to poor muscle control, putting pressure on the nerves between your collarbone and your top rib. Thoracic outlet syndrome is sometimes considered controversial, as symptoms can be vague and similar to other conditions. Symptoms of Thoracic Outlet Syndrome. Taskaynatan MA, Balaban B, Yasar E, et al. History and etymology. If pressure is put on one of the subclavian arteries (located under the collarbone), the arm becomes pale and cool. Also, surgery may not relieve your symptoms, and symptoms may recur. Thoracic Outlet Syndrome (TOS) is a condition, which includes several upper extremity neurological and vascular symptoms. J Musculoskeletal Pain. Symptoms of TOS. The condition develops suddenly, often after unusual and tiring exercise of the arms. FIG 24.1 . One of the reasons is that the symptoms can look a lot like other problems, such as muscle strain. Just my assumption that it's all the blood in the arm. Likes KC, Orlando MS, Salditch Q, … Kerry Katona has been diagnosed with thoracic outlet syndrome Bang Showbiz. 1998:12(3):260-264. If these structures get entrapped it can lead to paresthesia or weakness in the upper limb. Thoracic Outlet Syndrome Causes and Risk Factors. Venous thoracic outlet syndrome: This condition is caused by damage to the major veins in the lower neck and upper chest. It’s important to be evaluated by someone who can distinguish between the various types of thoracic outlet syndrome and rule out other conditions. UP NEXT. Hand Clin. seen in thoracic outlet syndrome, meaning that although you may have signs and symptoms of the injury these injuries may be the true root cause: ulnar nerve compression, median nerve compression, cervical spondylosis, progressive muscular atrophy, myofascial trigger points, double crush syndrome and visceral causes. Thoracic outlet syndrome (TOS) typically presents as upper extremity symptoms caused by compression of the neurovascular structures in the area of the neck above the first rib. There are 4 recognized subtypes of TOS, each with a distinct cause and pattern of symptoms. (Courtesy Joseph E. Muscolino. These symptoms are a result of compression of nerve, blood vessels, or both which run in the Thoracic Outlet. The passageway for these nerves and blood vessels to exit the chest and supply the upper extremities is referred to as the thoracic outlet. An example of such activity is swimming, especially with the freestyle stroke, butterfly stroke, and backstroke. Three structures are at risk: the brachial plexus, the subclavian vein, and the subclavian artery, producing neurogenic (NTOS), venous (VTOS), and arterial (ATOS) thoracic outlet syndromes, respectively. Anything that exerts added pressure onto this area is likely to result in a variety of symptoms in the arm, known as Thoracic Outlet Compression Syndrome (TOCS). The term ‘thoracic outlet syndrome’ describes compression of the neurovascular structures as they exit through the thoracic outlet (cervicothoracobrachial region). 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