Evaluation and Management of Venous Thoracic Outlet Syndrome.

Thoracic Surgery Clinics
Jason R Cook, Robert W Thompson

Abstract

Venous thoracic outlet syndrome (TOS) is uncommon but occurs in young, healthy patients, typically presenting as subclavian vein (SCV) effort thrombosis. Venous TOS arises through chronic repetitive compression injury of the SCV in the costoclavicular space with progressive venous scarring, focal stenosis, and eventual thrombosis. Diagnosis is evident on clinical presentation with sudden spontaneous upper extremity swelling and cyanotic discoloration. Initial treatment includes anticoagulation, venography, and pharmacomechanical thrombolysis. Surgical management using paraclavicular decompression can result in relief from arm swelling, freedom from long-term anticoagulation, and a return to unrestricted upper extremity activity in more than 90% of patients.

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