Algorithm for automatically checking the pacing safety margin in cardiac pacing systems

摘要

A method for automatically maintaining a desired safety margin associated with a current pacing output of the cardiac pacer to thereby minimize the need for backup pacing and maximize the efficiency of the cardiac pacer circuitry. The method may be implemented in a cardiac pacer to reduce power consumption while assuring therapeutic efficacy. In use, after a preselected lapse of time the pacing output is altered to determine whether the current pacing output should be increased, remain the same, or reduced.