Patent ID: 7742815
Filing Date: 2010-06-22
Classification: A61N

Abstract:
1. A method of administering a cardiac rhythm management therapy to the heart, the method comprising: sensing pulmonary arterial pressure from within the pulmonary artery with an implanted sensor; communicating data representative of the sensed pulmonary arterial pressure from the sensor to an implanted medical device; calculating a current pre-ejection period from the data; comparing the current pre-ejection period to a previously calculated pre-ejection period; and if the current pre-ejection period has changed compared to the previously calculated pre-ejection period, sending a cardiac rhythm management signal to adjust the heart rate, wherein one or more attributes of the cardiac rhythm management signal are based on a pre-programmed relationship between the current pre-ejection period and the cardiac cycle length; and repeating the process until the relationship between the current pre-ejection period and the previously calculated pre-ejection periods is such that no adjustment in the heart rate is necessary.