Subclavian Artery Occlusion Syndrome

The circulation specialist —the angiologist or the vascular surgeon— is the one who studies subclavian artery occlusion, a reduction or blockage of flow in the artery that carries blood to the arm and part of the head. This artery arises near the heart, which is why the cardiologist may also take part in its evaluation.

Possible manifestations: a feeling of tiredness or coldness in an arm when exerting it, differences in pulse or pressure between the two sides and, at times, dizziness.

Common causes: it is usually related to the progressive hardening of the arteries and, less frequently, to compression or inflammation of the vessels.

When to seek attention? In the presence of persistent discomfort in the arm or notable differences between the two sides of the body, it is advisable for a professional to review the case and guide the next steps.