Treatment of Thoracic Outlet Syndrome with Subclavian Vein Thrombosis at the Costoclavicular Junction
Venous thoracic outlet syndrome (VTOS) is a distinct and clinically urgent subtype of thoracic outlet syndrome in which the subclavian vein is compressed extrinsically at the costoclavicular junction. This scenario carries its own targeted treatment pathway, separate from neurogenic or arterial variants.
Clinical Scenario
The subclavian vein is abnormal due to extrinsic compression at the costoclavicular junction — or, rarely, the pectoralis minor space. Patients present with signs and symptoms of intermittent compression or partial to complete venous thrombosis: unilateral arm swelling, discoloration, heaviness, or overt subclavian vein thrombosis (effort thrombosis / Paget–Schroetter syndrome).
Treatment Approach (partial overview)
The structured protocol for this presentation centres on catheter-directed axillosubclavian venous thrombolysis — an endovascular approach to restore patency of the obstructed subclavian vein. The complete protocol specifies technique selection, adjunctive procedural steps, and which interventions are contraindicated in this specific anatomical situation.
Treatment Goal
Fully successful thrombolysis with a normal residual vein at rest and with elevation.
References
DOI: 10.1016/j.jvs.2016.04.039
- VTOS is defined as an abnormality of the subclavian vein caused by extrinsic compression at the costoclavicular junction (VTOS) or, rarely, the pectoralis minor space (VPMS).
- Patients have signs and symptoms caused by intermittent compression or partial or complete thrombosis of the subclavian vein at the costoclavicular junction.
- Axillosubclavian venous thrombolysis — Technique: conventional (infusion during 6 to 48 hours) or pharmacomechanical (immediate mechanically aided clot removal).
- Any adjunctive measures used (eg, balloon venoplasty — note that stenting is contraindicated in this situation).
- Fully successful with normal residual vein at rest and elevation.
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