RIU 436 Lecture 42: Upper Extremity Arterial Diseases pt 1
18 Aug 2020
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Upper extremity paod (peripheral arterial occlusive disease) < 5%of extremity ischemia are upper ext. Only about 5% have underlying obstructive condition not due to plaque. Episodic digital artery vasospasm related to cold exposure or emotional stress. Associated with underlying condition such as scleroderma or trauma. 6-20% of people in cool damp climates (particularly young females) report symptoms. Intermittent digital ischemia from cold exposure or emotional stimuli- intense pallor-cyanosis- Results in pain and color changes (white, red, blue) Compression of the subclavian neurovascular bundle as it passes through the thoracic outlet. 20% of normal individuals can demonstrate subclavian artery compression with provocative maneuvers. Symptoms- positional changes in the should elicit: And/or artery 1-2% at the thoracic outlet. Hypertrophy of the scalene muscles- more with athletes. Arterial thoracic outlet syndrome occurs primarily in younger patients due to. Results in compression and damage to subclavian artery----- repeated trauma to the subclavian artery can cause:
