Treatment of a Patient With a Pheochromocytoma

Since Goldenberg, Snyder and Aranow¹reported their experiences using 2-(1-piperidylmethyl)-1,4-benzodioxan (933 F) in the diagnosis of hypertension caused by circulating epinephrine liberated from functioning tumors of the adrenal medulla, many have confirmed their results. Possibility of failure and value of other tests have been reviewed by Roth and Kvale.²It is well known that pheochromocytomas, whether associated with paroxysmal or persistent hypertension, are removed with difficulty because anesthetic agents and operative manipulation often cause excessive elevations or fluctuations of blood pressure and subsequent reduction and shock. The present high surgical mortality rate (3 of 20 operations reported in the literature since 1943, as reviewed by Hatch, Richards and Spiegl³) is attributed to epinephrine intoxication. Injection of epinephrine can cause increase or decrease of blood pressure. Also, tumors may contain epinephrine or non-epinephrine.⁴Behavior of a patient who has a pheochromocytoma with circulating epinephrine and who is