Document Detail


Increased plasma aldosterone-to-renin ratio is associated with impaired left ventricular longitudinal functional reserve in patients with uncomplicated hypertension.
MedLine Citation:
PMID:  17869062     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Relative aldosterone excess is associated with endothelial dysfunction and higher incidence of end organ damage. We sought to investigate whether plasma aldosterone-to-renin ratio (ARR) is associated with left ventricular (LV) longitudinal function reserve to exercise in patients with controlled hypertension. In the patients with controlled and uncomplicated hypertension without overt LV hypertrophy, plasma aldosterone concentrations (ng/dL) and renin activities (ng/mL/h) were measured. Then 28 consecutive patients with higher ARR (group II, ARR > or = 30, 55 +/- 10 years) and 56 age- and sex-matched patients with lower ARR (group I, ARR < 30) underwent supine bicycle exercise echocardiography. Despite similar 24-hour blood pressure, LV mass index was significantly higher in group II (91.1 +/- 16.4 vs 101.7 +/- 18.2 g/m(2), P = .008). Early diastolic and systolic mitral annular velocity (E' and S', cm/s) at 50-W exercise was significantly lower in group II compared with group I (9.91 +/- 1.66 vs 8.67 +/- 1.65 cm/s, P = .002; 9.52 +/- 1.71 vs 8.46 +/- 1.79, P = .010, respectively) despite similar resting values. Longitudinal diastolic functional reserve at 25-W and 50-W exercise, defined as DeltaE' (change from resting E', cm/s) of group II was significantly lower than that of group I (2.60 +/- 1.42 vs 1.85 +/- 1.44 cm/s, P = .016; 3.40 +/- 1.48 vs 2.36 +/- 1.43 cm/s, P = .003, respectively). In conclusion, in patients with hypertension without overt LV hypertrophy, increased ARR is associated with increased LV mass, and impaired LV longitudinal functional reserve during exercise.
Authors:
Eui-Young Choi; Jong-Won Ha; Se-Jung Yoon; Chi-Young Shim; Hye-Sun Seo; Sungha Park; Young-Guk Ko; Seok-Min Kang; Donghoon Choi; Se-Joong Rim; Yangsoo Jang; Namsik Chung
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-09-14
Journal Detail:
Title:  Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography     Volume:  21     ISSN:  1097-6795     ISO Abbreviation:  J Am Soc Echocardiogr     Publication Date:  2008 Mar 
Date Detail:
Created Date:  2008-03-03     Completed Date:  2008-03-26     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8801388     Medline TA:  J Am Soc Echocardiogr     Country:  United States    
Other Details:
Languages:  eng     Pagination:  251-6     Citation Subset:  IM    
Affiliation:
Cardiology Division, Yonsei Cardiovascular Center and Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, South Korea.
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MeSH Terms
Descriptor/Qualifier:
Aldosterone / blood*
Exercise Test
Female
Fractional Flow Reserve, Myocardial*
Humans
Hypertension / blood*,  complications,  ultrasonography*
Male
Middle Aged
Renin / blood*
Ventricular Dysfunction, Left / blood*,  complications,  ultrasonography*
Chemical
Reg. No./Substance:
52-39-1/Aldosterone; EC 3.4.23.15/Renin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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