Document Detail

Thoracic bioimpedance as a basis for pacing control.
MedLine Citation:
PMID:  10372164     Owner:  NLM     Status:  MEDLINE    
Periodic variations of the thoracic bioimpedance due to breathing and heartbeating carry confidential information that is used for pacing rate control in rate-adaptive pacemakers. The respiratory parameters--the respiration rate and tidal volume--are detected from the filtered breathing signal component (0.1 to 1.0 Hz), and are used for fuzzy feed-forward adaptive control of the pacing rate to meet the needs of the organism. The cardiac parameters--the actual heart rate and stroke volume--are measured from the heartbeating signal component (1.0 to 3.0 Hz) and are proposed for feedback correction of the feed-forward control to meet the heart's ability. The problems of electrical bioimpedance measurement and design of the rate-adaptive pacemaker, wherein the intracardiac impedance is used as the main information source for pacing control, are discussed in this paper.
M Min; T Parve; A Kink
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Annals of the New York Academy of Sciences     Volume:  873     ISSN:  0077-8923     ISO Abbreviation:  Ann. N. Y. Acad. Sci.     Publication Date:  1999 Apr 
Date Detail:
Created Date:  1999-07-01     Completed Date:  1999-07-01     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7506858     Medline TA:  Ann N Y Acad Sci     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  155-66     Citation Subset:  IM    
Department of Electronics, Tallinn Technical University, Estonia.
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MeSH Terms
Blood Pressure
Electric Impedance / therapeutic use*
Fuzzy Logic
Heart Rate
Pacemaker, Artificial*
Stroke Volume
Tidal Volume

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

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