Document Detail

Mayer waves in dogs with total artificial heart.
MedLine Citation:
PMID:  1428208     Owner:  NLM     Status:  MEDLINE    
To assess the effect of a total artificial heart (TAH) on the autonomic nervous system a power spectral analysis of the hemodynamics in a TAH animal was done by the maximum entropy method. Two pneumatically driven sac-type ventricular assist devices were implanted as total biventricular bypass (BVB) in adult mongrel dogs to compare the differences between natural heart and TAH. Once the BVB was pumping, the natural heart was electrically fibrillated to constitute the BVB-type TAH model. In the arterial pressure waveform in animals with TAH, respiratory waves were not changed (97.7 +/- 24.6%) though Mayer waves were significantly decreased (47.5 +/- 22.6%) compared with the animal with a natural heart. These results suggest that prosthetic hemodynamics in the TAH animal affect fluctuations in the cardiovascular system.
T Yambe; S Nitta; Y Katahira; T Sonobe; S Naganuma; Y Kakinuma; S Kobayashi; M Tanaka; M Miura; N Sato
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The International journal of artificial organs     Volume:  15     ISSN:  0391-3988     ISO Abbreviation:  Int J Artif Organs     Publication Date:  1992 Oct 
Date Detail:
Created Date:  1992-12-22     Completed Date:  1992-12-22     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7802649     Medline TA:  Int J Artif Organs     Country:  ITALY    
Other Details:
Languages:  eng     Pagination:  601-5     Citation Subset:  IM    
Department of Medical Engineering and Cardiology, School of Medicine, Tohoku University, Sendai, Japan.
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MeSH Terms
Autonomic Nervous System / physiology
Blood Pressure / physiology*
Heart, Artificial*
Respiration / physiology*

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