Document Detail


Add-on amlodipine improves arterial function and structure in hypertensive patients treated with an angiotensin receptor blocker.
MedLine Citation:
PMID:  17414228     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The present study was designed to determine whether adding amlodipine further improved functional and structural cardiovascular damage in hypertensive patients whose blood pressure was already well controlled with an angiotensin II type 1 receptor blocker (ARB). The cardiothoracic ratio on chest radiographs, level of urinary albumin excretion, pulse wave velocity (PWV), intima-media thickness (IMT) of the carotid arteries, and 24 hour ambulatory blood pressure (BP) were evaluated before and 12 months after the start of add-on of amlodipine or placebo in 50 hypertensive patients being treated with an ARB. The add-on amlodipine therapy significantly improved the PWV from 1689 +/- 61 to 1447 +/- 47 cm/s and the IMT from 0.88 +/- 0.08 to 0.75 +/- 0.06 mm in the hypertensive patients treated with an ARB without altering their mean 24 hour ambulatory BP values, but did not alter the cardiothoracic ratio or urinary albumin excretion. Amlodipine also significantly decreased the variability of ambulatory BP, but the decrease did not significantly contribute to the changes in PWV or IMT. Thus, the add-on low-dose amlodipine therapy had benefits in terms of the vascular function and vascular structure of hypertensive patients treated with an ARB that were independent of its depressor effects. The antiatherogenic pleiotropic properties of amlodipine have a preventive effect on the progression of arterial stiffness in hypertensive patients treated with an ARB.
Authors:
Atsuhiro Ichihara; Yuki Kaneshiro; Mariyo Sakoda; Tomoko Takemitsu; Hiroshi Itoh
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of cardiovascular pharmacology     Volume:  49     ISSN:  0160-2446     ISO Abbreviation:  J. Cardiovasc. Pharmacol.     Publication Date:  2007 Mar 
Date Detail:
Created Date:  2007-04-06     Completed Date:  2007-05-08     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7902492     Medline TA:  J Cardiovasc Pharmacol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  161-6     Citation Subset:  IM    
Affiliation:
Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan. atzichi@sc.itc.keio.ac.jp
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MeSH Terms
Descriptor/Qualifier:
Albuminuria / drug therapy
Amlodipine / therapeutic use*
Angiotensin II Type 1 Receptor Blockers / therapeutic use*
Antihypertensive Agents / therapeutic use*
Blood Pressure / drug effects
Blood Pressure Monitoring, Ambulatory
Carotid Arteries / drug effects*,  pathology
Drug Therapy, Combination
Female
Humans
Hypertension / drug therapy*
Male
Middle Aged
Pulsatile Flow
Radiography, Thoracic
Tunica Intima / drug effects
Tunica Media / drug effects
Chemical
Reg. No./Substance:
0/Angiotensin II Type 1 Receptor Blockers; 0/Antihypertensive Agents; 88150-42-9/Amlodipine

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


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