How common is secondary hypertension (HTN) due to primary aldosteronism?

Updated: Mar 24, 2020
  • Author: Gabriel I Uwaifo, MD; Chief Editor: Romesh Khardori, MD, PhD, FACP  more...
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Answer

Based on older data, it was originally estimated that primary aldosteronism accounted for less than 1% of all patients with HTN. Subsequent data, however, indicated that it may actually occur in as many as 5-15% of patients with HTN. Primary aldosteronism may occur in an even greater percentage of patients with treatment-resistant HTN and may be considerably underdiagnosed; this is especially true if patients with treatment-refractory HTN are not specifically referred for evaluation to an endocrinologist. (See Epidemiology.)


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