Document Detail

Method for studying arterial wave transmission effects on left ventricular function.
MedLine Citation:
PMID:  2000959     Owner:  NLM     Status:  MEDLINE    
A technique for studying the real-time effects of arterial wave reflections on the performance of the isolated left ventricle was investigated. Real-time arterial loading of an isolated ferret heart with an asymmetric T-tube wave transmission model was obtained with the use of a multiprocessor computer control system and a volume control linear motor pump. The multiprocessor computer system was programmed to compute the instantaneous aortic flow from the instantaneous ventricular pressure. The time integral of the flow was used as a command to the linear motor pump to control the instantaneous ventricular volume. This loading system allowed the imposition of a wide variety of vascular impedances on the ventricle by changing the parameters of the asymmetric T-tube model.
R D Kirkpatrick; K B Campbell; D L Bell; H Taheri
Related Documents :
10078279 - Small soft left ventricular assist device powered by intraaortic balloon pump console f...
15786009 - Effect of different operative techniques for myocardial revascularisation on hemodynami...
2590329 - Three irrigation systems for motorized arthroscopic surgery: a comparative experimental...
10886069 - Paradoxical effects of viscosity on the ventrassist rotary blood pump.
8204809 - Assisted circulation without systemic heparinization.
1998489 - Comparison of a steady flow pump to a preload responsive pulsatile pump in left atrial-...
2282549 - Clinical use of positive-pressure ventilation in the horse.
7560759 - A causal relationship between fluctuations in thermoregulatory skin perfusion and respi...
1895779 - Elastase activity in bronchoalveolar lavage fluid from oxygen-exposed, pseudomonas-infe...
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  The American journal of physiology     Volume:  260     ISSN:  0002-9513     ISO Abbreviation:  Am. J. Physiol.     Publication Date:  1991 Mar 
Date Detail:
Created Date:  1991-04-11     Completed Date:  1991-04-11     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0370511     Medline TA:  Am J Physiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  H1003-12     Citation Subset:  IM    
Department of Veterinary and Comparative Anatomy, Pharmacology, and Physiology, Washington State University, Pullman 99164-6520.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Arteries / physiology*
Cardiology / instrumentation
Equipment Design
Models, Cardiovascular*
Time Factors
Vascular Resistance
Ventricular Function, Left / physiology*
Grant Support

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

Previous Document:  Accelerator mass spectrometry: application to study of aluminum kinetics in the rat.
Next Document:  Estimated time course of Ca2+ bound to troponin C during relaxation in isolated cardiac muscle.