Document Detail


Holter-type impedance cardiography device. A system for continuous and non-invasive monitoring of cardiac haemodynamics.
MedLine Citation:
PMID:  15457280     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Impedance cardiography (ICG) enables the non-invasive, reproducible, beat-to-beat estimation of stroke volume (SV) changes, and the measurement of the absolute values of the ejection time (ET) and pre-ejection period (PEP), which allows the indirect evaluation of cardiac contractility. The miniaturised, Holter-type impedance cardiography device with built-in one channel of ECG called ReoMonitor, was constructed. The system allows the long-term, beat-to-beat, automatic evaluation of SV, ET, PEP and heart rate. The measurements obtained by ReoMonitor were verified using on echocardiographic method in supine and tilted positions. A high correlation coefficient (r=0.83) was calculated between the measurements collected using both methods. Speech or vigorous movement distinctly lowered the percentage of properly recognised cardiac cycles (during daytime: 20-80%, during the night: 75-90%). However, during exercise testing on a cycloergometer the quality of recordings was good. The following clinical applications of a system are presented: a) evaluation of hemodynamical abnormalities caused by arrhythmia events, b) vasovagal syncope diagnosis, and c) optimisation of atrio-ventricular delay during dual-chamber pacing.
Authors:
Gerard Cybulski; Edward Koźluk; Ewa Michalak; Wiktor Niewiadomski; Agnieszka Piatkowska
Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Kardiologia polska     Volume:  61     ISSN:  0022-9032     ISO Abbreviation:  Kardiol Pol     Publication Date:  2004 Aug 
Date Detail:
Created Date:  2004-09-30     Completed Date:  2004-12-09     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0376352     Medline TA:  Kardiol Pol     Country:  Poland    
Other Details:
Languages:  eng     Pagination:  138-46     Citation Subset:  IM    
Affiliation:
Polish Academy of Sciences, Medical Research Centre, Department of Applied Physiology, Warsaw, Poland.
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MeSH Terms
Descriptor/Qualifier:
Arrhythmias, Cardiac / physiopathology
Cardiography, Impedance / instrumentation*,  methods*
Echocardiography
Humans
Stroke Volume
Syncope, Vasovagal / physiopathology
Systole

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