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  • Open Surgical

Thoracic Outlet Syndrome Surgery

Thoracic Outlet Syndrome Surgery in Sarasota & Bradenton

Arm Pain, Swelling, or Clots in a Young, Active Person? The Answer May Be in the Outlet.

Thoracic outlet syndrome (TOS) occurs when nerves, arteries, or veins become compressed in the thoracic outlet — the space between the collarbone and the first rib. Compression in this narrow passageway can cause a range of symptoms depending on which structures are affected, from arm pain and numbness to blood clots and impaired circulation.

TOS has three forms: neurogenic (nerve compression, the most common), venous (subclavian vein compression, causing swelling and clotting), and arterial (subclavian artery compression, the least common but most serious). Vascular Wellness Institute surgeons manage arterial and venous TOS — the vascular forms of this condition.

Venous TOS (Paget-Schroetter Syndrome)

Venous TOS — also called Paget-Schroetter syndrome or effort thrombosis — typically occurs in young, active individuals and athletes who engage in repetitive overhead arm activity. Compression of the subclavian vein causes clotting (deep vein thrombosis) in the arm, presenting with sudden arm swelling, heaviness, and discoloration. Treatment involves catheter-directed thrombolysis to dissolve the clot, followed by first-rib resection to decompress the thoracic outlet and prevent recurrence.

Arterial TOS

Arterial TOS is caused by compression of the subclavian artery, often in the setting of a cervical rib (an extra rib above the first rib) or an abnormal first rib. Chronic compression can damage the artery wall, leading to aneurysm formation, clot formation, and embolization to the hand and fingers. Treatment involves first-rib resection — and, if the artery has been damaged, arterial reconstruction.

Thoracic Outlet Decompression

The surgical treatment for vascular TOS is thoracic outlet decompression — most commonly first-rib resection, performed through an incision in the axilla (armpit) or above the collarbone. Removing the first rib widens the thoracic outlet and relieves the compression responsible for vascular symptoms. Recovery typically involves a hospital stay of one to two days and several weeks of activity restrictions.

Anesthesia Type

General

Typical Duration

2–3 hrs

Performed At

Hospital, Outpatient Surgery Center

Recovery Time

3–5 days

Hospital Stay​

1–2 nights

Frequently Asked Questions

  • How is thoracic outlet syndrome diagnosed? +

    Diagnosis begins with a detailed history and physical examination, including provocative maneuvers. Imaging — including chest X-ray to identify cervical ribs, CT angiography, venography, or duplex ultrasound — is used to confirm vascular compression. The diagnostic workup often involves collaboration between vascular surgery, physical medicine, and neurology.

  • Is surgery always necessary for TOS? +

    For venous and arterial TOS, surgery is typically necessary to decompress the thoracic outlet and prevent recurrent clotting or arterial damage. For neurogenic TOS, conservative management — physical therapy and activity modification — is tried first, and surgery is considered for patients who fail to improve.

  • What is a cervical rib and why does it matter? +

    A cervical rib is an extra rib that arises from the seventh cervical vertebra in the neck, above the normal first rib. It is a congenital anomaly present in about 0.5 to 1 percent of the population. When present, it narrows the thoracic outlet and significantly increases the risk of arterial TOS. It is typically identified on chest X-ray.

  • Who is most affected by venous TOS? +

    Venous TOS most commonly affects young, otherwise healthy individuals — particularly overhead athletes such as baseball players, swimmers, and weightlifters. It can also occur in non-athletes with repetitive overhead work. Sudden arm swelling, pain, and bluish discoloration in a young person after exertion should prompt urgent vascular evaluation.

  • What happens if venous TOS is not treated? +

    Untreated subclavian vein thrombosis can lead to chronic arm swelling, venous hypertension, and post-thrombotic syndrome — persistent arm heaviness and discomfort. Without decompression of the thoracic outlet, the risk of recurrent clotting is high. Early diagnosis and treatment — thrombolysis followed by surgery — produces the best long-term outcomes.