Hemiplegia and contralateral upper limb claudication--a case of dual disability from pseudoaneurysm of the brachiocephalic artery: a brief report.

Thromboembolic obstruction of the brachiocephalic artery can have significant functional consequences because it threatens arterial circulation to the right upper limb and right cerebrum. A case is presented of a young man who sustained right basal ganglia infarct 2 mo after suffering multiple gunshot wounds to his chest. The severity of his hemiplegia rendered his left arm nonfunctional. Later, he developed progressive symptoms of right upper limb claudication, making it impossible to perform activities of daily living independently with the hemiplegic technique. Arteriography revealed a pseudoaneurysm near the bifurcation of the brachiocephalic artery; the likely source was thromboembolism to the right common carotid and right subclavian artery. Surgical ligation of the subclavian artery and vascular bypass from the common carotid to the brachial artery restored blood flow to his right upper limb. The arm claudication was relieved, and he was again able to perform activities of daily living independently. This case represents an unusual cause of dual disability with bilateral upper limb dysfunction from a single thromboembolic source. Accurate diagnosis and treatment prevented this patient from developing permanent impairment and restored him to functional independence.