[Thoracic outlet syndrome].

The thoracic outlet syndrome is a polymorphic clinical entity, whose nature is essentially anatomic, caused by the chronic compression of the neurovascular structures that are originated in the chest or neck and course to the upper extremity. According to the most affected structure, they can be classified as neurologic, arterial or venous syndromes, that may cause discomfort, pain and disability, sometimes definite and irreparable. Thoracic outlet syndrome are often difficult to recognize in clinical practice and it is important to emphasize some peculiar symptoms or signs that each syndrome may present, through specific maneuvers or adequate complementary studies. The great majority of patients may improve with physical therapy or postural correction, and a minority is indicated for surgical therapy. The main features of the diverse thoracic outlet syndromes, their clinical presentation, diagnosis, conventional and surgical management, surgical access, complications and prognosis are described and discussed in this paper dedicated to a complete review of the entity.