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Article |

Symptomatic Hypotension Following the Clonidine Suppression Test for Pheochromocytoma

Bruce D. Given, MD; Terry Taylor, MD; Leonard S. Lilly, MD; Victor J. Dzau, MD
Arch Intern Med. 1983;143(11):2195-2196. doi:10.1001/archinte.1983.00350110185039.
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• A 42-year-old man with generalized atherosclerosis underwent surgery of the left carotid artery with eventual placement of a Dacron graft bypassing the left carotid sinus. Subsequently, symptoms suggestive of pheochromocytoma developed, and 24-hour urine catecholamine levels were elevated. Clonidine testing resulted in suppression of plasma norepinephrine levels but was complicated by severe hypotension and a transient ischemic attack. Baroreceptor dysfunction may have been involved. Caution is advised and recommendations are offered for future usage of the clonidine suppression test.

(Arch Intern Med 1983;143:2195-2196)


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