Pacing system and method for cardiac pacing as a function of determined myocardial contractility
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United States of America Patent
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Jun 26, 1990
Issued Date -
N/A
app pub date -
Dec 16, 1987
filing date -
Oct 7, 1985
priority date (Note) -
Expired
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Abstract
A cardiac pacing system and method provides rate control as a function of sensed myocardial contractility. A signal representative of short term, e.g. cycle-to-cycle, heart contractility is derived from a sensor which measures intramyocardial pressure. A microprocessor-band controller provides logic and memory capacity for carrying out a signal processing algorithm for determining and selecting optimum pacing rate as a function of sensed intensity of the active state of the cardiac muscle.
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