Method and apparatus for assessing cardiovascular performance

Details Method and apparatus for assessing cardiovascular performance Method and apparatus for assessing cardiovascular performance

1994-11-01

1997-06-03

Sykes, Angela D.

Surgery

Truss

Pad

128670, 128677, 128683, A61B 5029

Patent

active

056344678

ABSTRACT:
A method of assessing the cardiovascular performance of a subject, by: applying periodically, in synchronism with every n.sup.th heart cardiac cycle wherein "n" is at least two, external pressure pulsations on a peripheral organ of the subject sufficient to alter ventricular loading; acquiring data representative of the ventricular pressure, and data representative of the ventricular volume, of the subject's heart over a plurality of heart cardiac cycles; and utilizing such data for assessing the cardiovascular performance of the subject. Ventricular loading may be altered by impeding ventricular ejection (changing afterload), and/or by altering venous return to the heart (changing preload).

REFERENCES:
patent: 4137910 (1979-02-01), Murphy
patent: 4877035 (1989-10-01), Bogen et al.
patent: 5199438 (1993-04-01), Pearlman
patent: 5241965 (1993-09-01), Mick
patent: 5445159 (1995-08-01), Cheng

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