Document Detail

Prevalence of primary aldosteronism among prehypertensive and stage 1 hypertensive subjects.
MedLine Citation:
PMID:  20927116     Owner:  NLM     Status:  In-Process    
Recent studies have reported a high prevalence of primary aldosteronism among patients with severe hypertension. However, the prevalence of this disease among normotensive and mildly hypertensive patients has not been determined. The aim of this study was to examine the prevalence of primary aldosteronism among prehypertensive and stage 1 hypertensive subjects. A total of 292 adult subjects with hypertension or prehypertension was screened for primary aldosteronism. Subjects with a plasma aldosterone concentration (ng per 100 ml) to plasma renin activity (ng ml(-1) h(-1)) ratio (ARR) above 20 underwent confirmatory captopril suppression testing. A total of 54 subjects (18.5%) had an ARR above 20. A captopril suppression test was performed in 17 of 54 subjects with probable primary aldosteronism. The test confirmed the diagnosis of primary aldosteronism in 11 (64.7%) of 17 patients, giving a least prevalence of 3.8% for this disease. The 11 patients with primary aldosteronism had a mean ± s.d. systolic blood pressure of 139 ± 4 mm Hg, diastolic blood pressure of 95 ± 10 mm Hg and serum potassium of 4.46 ± 0.48 mEq l(-1) at the time of screening test. The prevalence of primary aldosteronism as could be assessed in this study was at least 6.8% in prehypertensive patients, 3.3% in stage 1 hypertensive patients and 3.1% in stage 2 hypertensive patients. In conclusion, this study suggests a high prevalence of primary aldosteronism among prehypertensive and stage 1 hypertensive Japanese patients. Significant numbers of prehypertensive individuals may have subclinical forms of this disease.
Yuji Ito; Ryoyu Takeda; Shigehiro Karashima; Yasuhiro Yamamoto; Takashi Yoneda; Yoshiyu Takeda
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-10-07
Journal Detail:
Title:  Hypertension research : official journal of the Japanese Society of Hypertension     Volume:  34     ISSN:  1348-4214     ISO Abbreviation:  Hypertens. Res.     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2011-01-05     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9307690     Medline TA:  Hypertens Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  98-102     Citation Subset:  IM    
Department of Internal Medicine, Federation of National Public Service Personnel Mutual Aid Associations, KKR Hokuriku Hospital, Kanazawa, Japan.
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MeSH Terms
Comment In:
Hypertens Res. 2011 Jan;34(1):47-8   [PMID:  20962784 ]
Hypertens Res. 2011 Jan;34(1):43-6   [PMID:  20962785 ]

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