What is the role of beta blockers in the treatment of pheochromocytomas?

Updated: Jul 20, 2020
  • Author: Michael A Blake, MBBCh, MRCPI, FRCR; Chief Editor: George T Griffing, MD  more...
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Initiate a beta blocker only after adequate alpha blockade (usually, 2 days). If beta blockade is started prematurely, unopposed alpha stimulation could precipitate a hypertensive crisis. Administer the last doses of oral alpha and beta blockers on the morning of surgery.

No distinction is found in hypertensive episodes during surgery for pheochromocytoma associated with MEN 2 and non-MEN–associated pheochromocytoma. Therefore, pretreatment using alpha and beta-adrenergic blockers remains a standard of care in both groups of patients. [61]

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