[Interdisciplinarity, Evidence and Relevance of Classification for Care in Thoracic Outlet Syndrome].

Thoracic Outlet Syndrome (TOS) refers to the compression of the neurovascular structures at the thoracic outlet. Its incidence is estimated at 2-3 cases per 100000 individuals per year. Patients are frequently affected by pain and/or functional impairment. The diagnostic and therapeutic process typically involves multiple medical specialties. Diagnosis is primarily clinical and requires the exclusion of differential diagnoses. Additional diagnostic modalities, such as ultrasound, MRI, angiography, or electroneurography, may provide supportive information. Depending on the treating discipline, different classifications and therapeutic strategies are applied. The availability of high-quality studies on treatment remains limited, although evidence has improved in recent years. To date, no standardised, interdisciplinary guidelines for the diagnosis and management of Thoracic Outlet Syndrome have been established.