A 41-year-old female patient presents to your office with a history of recurrent episodes of pain, numbness, and tingling in her left arm and hand. She also reports occasional swelling and cyanosis of her left hand. The patient has a history of a left cervical rib discovered on a previous X-ray. On physical examination, you notice a prominent left cervical rib. What is the most appropriate next step in the management of this patient?