Document Detail


Measuring postural changes in blood pressure in the healthy elderly.
MedLine Citation:
PMID:  10362884     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Background The reproducibility of postural changes in blood pressure of a healthy elderly population determined using standard clinical measurements is not known. OBJECTIVE: To assess the differences in reproducibility of postural changes in blood pressure in healthy elderly subjects 1 and 3 min after standing within a day and between visits spaced 6 weeks apart. METHODS: Casual readings of blood pressures of supine and standing subjects were measured twice during the day by the same observer on two occasions 6 weeks apart using a semi-automatic syphgmomanometer. Twenty-two subjects with no known risk factors for orthostatic hypotension (13 men) aged 69+/-3 years (mean+/-SD) with a mean initial screening supine blood pressure of 153+/-19/88+/-11 mmHg were recruited. RESULTS: There were significant differences(P<0.001) between the postural changes both for systolic and for diastolic blood pressure between 1 and 3 min of standing, the largest falls occurring after 1 min of standing, though we found no variation between morning and afternoon measurements and between visits. The coefficients of reproducibility between visits for the postural changes in blood pressure after 1 and 3 min of standing were large both for systolic and for diastolic blood pressure, ranging from 9.8 to 29.3 mmHg. CONCLUSIONS:There was a consistent and significant difference between the postural changes in blood pressure after 1 and 3 min of standing for this healthy elderly population, but there was no significant difference between the postural changes in morning and afternoon measurements and between visits. This marked variability in the postural change in blood pressure with duration of standing must be taken into account when assessing the prevalence of orthostatic hypotension and the effects of treatment in patients with orthostatic falls in blood pressure.
Authors:
J H Youde; B Manktelow; S Ward-Close; J F Potter
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Blood pressure monitoring     Volume:  4     ISSN:  1359-5237     ISO Abbreviation:  Blood Press Monit     Publication Date:  1999 Feb 
Date Detail:
Created Date:  1999-08-31     Completed Date:  1999-08-31     Revised Date:  2010-03-23    
Medline Journal Info:
Nlm Unique ID:  9606438     Medline TA:  Blood Press Monit     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  1-5     Citation Subset:  IM; S    
Affiliation:
Department of Medicine for the Elderly, The Glenfield Hospital, Leicester, UK.
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MeSH Terms
Descriptor/Qualifier:
Aged
Aging / physiology*
Blood Pressure / physiology*
Blood Pressure Determination
Female
Humans
Male
Posture / physiology*
Reference Values
Reproducibility of Results

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


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