Document Detail


Continuous ventricular volume assessment for diagnosis and pacemaker control.
MedLine Citation:
PMID:  6209669     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Stroke volume measurements made by a catheter-based, right ventricular, intracardiac impedance system at rest and during upright bicycle ergometry were found to compare favorably with measurements made by acetylene rebreathing (r = 0.96, n = 13) and by radionuclide ventriculography (r = 0.96, n = 13) in a 46-year-old male pacemaker-dependent subject. The impedance information was then used to control the ventricular pacing rate during bicycle exercise, utilizing an algorithm that attempts to maintain a constant stroke volume. This resulted in a 23% increase in cardiac output accompanied by a 70% decrease in stroke volume as compared to the values measured during the same exercise at 70 pulses per minute (ppm).
Authors:
R W Salo; B D Pederson; A L Olive; W C Lincoln; T G Wallner
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Pacing and clinical electrophysiology : PACE     Volume:  7     ISSN:  0147-8389     ISO Abbreviation:  Pacing Clin Electrophysiol     Publication Date:  1984 Nov 
Date Detail:
Created Date:  1985-01-24     Completed Date:  1985-01-24     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7803944     Medline TA:  Pacing Clin Electrophysiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1267-72     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Cardiac Output*
Cardiac Pacing, Artificial / methods
Cardiography, Impedance / methods
Exercise Test
Heart Function Tests / methods
Humans
Male
Middle Aged
Pacemaker, Artificial*
Posture
Stroke Volume*
Time Factors

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


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