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High prevalence of liddle syndrome phenotype among hypertensive US Veterans in Northwest Louisiana.
MedLine Citation:
PMID:  21054772     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
Liddle syndrome (LS) is an autosomal dominant disorder due to a gain-of-function mutation in the epithelial Na(+) channel and is perceived to be a rare condition. A cross-sectional study of 149 hypertensive patients with hypokalemia (<4 mmol/dL) or elevated serum bicarbonate (>25 mmol/dL) was conducted at a Veterans' Administration Medical Center Hypertension Clinic in Shreveport, LA. Data on demographics, blood pressure, and select blood tests were collected and expressed as percentages for categoric variables and as mean ± standard deviation (SD) for continuous variables. Patients were diagnosed with likely LS when the plasma renin activity (PRA) was <0.35 μU/mL/h and the aldosterone was <15 ng/dL and likely primary hyperaldosteronism (PHA) with PRA <0.35 μU/mL/h and aldosterone level >15 ng/dL. The cohort included predominantly elderly (67.1±13.4 years), male (96%), and Caucasian (57%) patients. The average blood pressure was 143.8/79.8 mm Hg±27.11/15.20 with 3.03±1.63 antihypertensive drugs. Based on the above criteria, 9 patients (6%) satisfied the criteria for likely LS and 10 patients (6.7%) were diagnosed with likely PHA. In this hypothesis-generating study, the authors detected an unusually high prevalence of biochemical abnormalities compatible with likely LS syndrome from Northwestern Louisiana, approaching that of likely PHA.
Authors:
Mihály Tapolyai; Aşkin Uysal; Neville R Dossabhoy; Lajos Zsom; Tibor Szarvas; Zsolt Lengvárszky; Tibor Fülöp
Publication Detail:
Type:  Journal Article     Date:  2010-08-20
Journal Detail:
Title:  Journal of clinical hypertension (Greenwich, Conn.)     Volume:  12     ISSN:  1751-7176     ISO Abbreviation:  J Clin Hypertens (Greenwich)     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-11-08     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100888554     Medline TA:  J Clin Hypertens (Greenwich)     Country:  United States    
Other Details:
Languages:  eng     Pagination:  856-60     Citation Subset:  IM    
Copyright Information:
© 2010 Wiley Periodicals, Inc.
Affiliation:
Department of Internal Medicine, Louisiana State University Health Sciences Center, Shreveport, LA, USA.
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