DocumentCode
3501722
Title
Effect of afterload on the time-course of left ventricular systolic elastance
Author
Berger, D. ; Li, J.K.
Author_Institution
Dept. of Biomed. Eng., Rutgers Univ., Piscataway, NJ, USA
fYear
1990
fDate
26-27 Mar 1990
Firstpage
73
Lastpage
74
Abstract
An elastance-resistance model of the left ventricle is used in conjunction with previously measured left ventricular pressure and outflow to derive elastances under three different loading conditions: control, hypertension, and hypotension. Using various times and time ratios of the elastance curves, it is shown that for decreasing load, elastance increases at a faster rate. This is also shown by normalizing the elastance curves with respect to the maximum elastance (E max) and the time to E max. Possible explanations for these observations are given
Keywords
biomechanics; cardiology; physiological models; afterload; elastance curves; elastance-resistance model; hypertension; hypotension; left ventricular systolic elastance; loading conditions; time ratios; time-course; Animals; Biomedical engineering; Biomedical measurements; Blood; Cardiology; Heart; Hypertension; Laboratories; Pressure control; Pressure measurement;
fLanguage
English
Publisher
ieee
Conference_Titel
Bioengineering Conference, 1990., Proceedings of the 1990 Sixteenth Annual Northeast
Conference_Location
State College, PA
Type
conf
DOI
10.1109/NEBC.1990.66295
Filename
66295
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