Document Detail


Different cut-off points of decreased heart rate variability for different groups of cardiac patients.
MedLine Citation:
PMID:  11324376     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Heart rate variability (HRV) differs by the type and stage of the disease, by age, by environment, and so on. Criteria for normal, moderately changed and pathologic values of HRV lack for routine clinical work with different groups of cardiac patients. METHODS: Twelve time and frequency domain HRV variables were analysed from 24-h Holter ECG monitoring in 2578 consecutive patients of both sexes (57% male) aged 15-91 (mean 54 +/- 13) years. Fifty-nine per cent of the patients were hospital out-patients, 15% came from the cardiac unit of an internal medicine department and 26% were undergoing stationary cardiac rehabilitation. Arrhythmias of aetiology other than coronary artery disease predominate in out-patients and coronary artery disease in in-patients. Limits of moderately and pathologically changed values were determined according to biostatistical principles. RESULTS: HRV differed by the age, sex and type of patients (MANOVA P < 0.001). Heart rate and all HRV measures decreased with age. Females had a higher heart rate but more pronounced vagally modulated activity than males. Out-patients had better HRV than in-patients. The cut-off level for a pathologic standard deviation of the normal R-R interval (a measure of overall HRV) ranged from 75 ms in female out-patients to 44 ms in male patients from the cardiac unit. Different cut-points for 12 HRV measures were obtained for 12 sub-groups of patients. CONCLUSION: In view of the HRV differences between different cardiac patients, different limits of normal and decreased HRV are proposed for daily practice.
Authors:
G Milicević; N Lakusić; L Szirovicza; D Cerovec; M Majsec
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of cardiovascular risk     Volume:  8     ISSN:  1350-6277     ISO Abbreviation:  J Cardiovasc Risk     Publication Date:  2001 Apr 
Date Detail:
Created Date:  2001-04-27     Completed Date:  2001-09-20     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9436980     Medline TA:  J Cardiovasc Risk     Country:  England    
Other Details:
Languages:  eng     Pagination:  93-102     Citation Subset:  IM    
Affiliation:
Cardiovascular Laboratory, Krapinske Toplice Hospital, Gajeva 2, HR-49217 Krapinske Toplice, Croatia.
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Aged
Aged, 80 and over
Analysis of Variance
Chi-Square Distribution
Electrocardiography, Ambulatory
Female
Heart Diseases / physiopathology*
Heart Rate / physiology*
Humans
Male
Middle Aged
Reference Values
Risk Factors
Statistics, Nonparametric

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


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