Document Detail


Inappropriateness of ventricular hypertrophy is important as a determinant of BNP but not of diastolic filling in untreated hypertensive patients.
MedLine Citation:
PMID:  19662018     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Echocardiographically determined inappropriateness of left ventricular mass (LVM) is an independent risk factor for cardiovascular events. Although LV hypertrophy is associated with an increase in the plasma brain natriuretic peptide level and decreased LV diastolic filling, it is unknown whether the inappropriateness of LVM affects them. We studied 77 untreated hypertensive patients (49 men, 28 women, aged 59+/-12 years). The plasma brain natriuretic peptide level was measured, in addition to routine echo Doppler indexes of LV geometry and function. The appropriateness of LVM to cardiac workload was evaluated by the ratio of the observed LVM to the value predicted for individual sex, stroke work and height(2.7) (oLVM/pLVM). Multivariate analysis showed that the plasma brain natriuretic peptide level increased with LVM index but decreased when oLVM/pLVM increased. The ratio of the peak early diastolic flow velocity of mitral flow to the peak early diastolic velocity of mitral annulus (E/E') correlated not only with oLVM/pLVM but also with the LVM index (r=0.30, P<0.05; r=0.37, P<0.05, respectively). However, when a multiple stepwise regression analysis was carried out, only LVM index was determined to be a significant correlate of the E/E' ratio, indicating that the inappropriateness of LVM does not affect the E/E' ratio in hypertensive patients. Brain natriuretic peptide levels are influenced not only by the extent of LV hypertrophy but also by the inappropriateness of hypertrophy in untreated hypertensive patients. Diastolic filling is mostly affected by the extent of LV hypertrophy and not by the appropriateness of hypertrophy.
Authors:
Akiko Goda; Shinji Nakao; Takeshi Tsujino; Misato Otsuka; Mika Matsumoto; Chikako Yoshida; Yoshiro Naito; Masaaki Lee-Kawabata; Mitsumasa Ohyanagi; Tohru Masuyama
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Publication Detail:
Type:  Journal Article     Date:  2009-08-07
Journal Detail:
Title:  Hypertension research : official journal of the Japanese Society of Hypertension     Volume:  32     ISSN:  1348-4214     ISO Abbreviation:  Hypertens. Res.     Publication Date:  2009 Oct 
Date Detail:
Created Date:  2009-10-07     Completed Date:  2009-12-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9307690     Medline TA:  Hypertens Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  916-9     Citation Subset:  IM    
Affiliation:
Cardiovascular Division, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan.
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MeSH Terms
Descriptor/Qualifier:
Aged
Algorithms
Blood Pressure / drug effects
Female
Humans
Hypertension / physiopathology*,  ultrasonography
Hypertrophy, Left Ventricular / pathology*,  ultrasonography
Male
Middle Aged
Natriuretic Peptide, Brain / blood*
Regression Analysis
Stroke Volume / drug effects
Chemical
Reg. No./Substance:
114471-18-0/Natriuretic Peptide, Brain

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


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