Combination of feedback on mechanical and electrical resynchronization to select therapy parameters

摘要

A system and method select a pacing site for a cardiac pacing therapy. A change from a baseline mechanical activity is extracted from a signal of mechanical heart activity during pacing at each one of multiple pacing sites along a heart chamber. A change from a baseline electrical activity is extracted from a signal of electrical heart activity during pacing at each of the of pacing sites. The pacing sites are sorted in a first order based upon the changes in mechanical heart activity and in a second order based upon the changes in electrical heart activity. A pacing site is selected from the multiple pacing sites as a common pacing site between the first order and the second order.

主权项

1. A method for selecting a pacing therapy site, comprising:
sensing baseline mechanical heart activity and baseline electrical heart activity; storing the baseline mechanical heart activity and baseline electrical heart activity; sensing mechanical heart activity and electrical heart activity during pacing at each of a plurality of pacing sites along a heart chamber; storing the mechanical heart activity and electrical heart activity; determining a change from the baseline mechanical heart activity to the sensed mechanical activity for each of the plurality of pacing sites along the heart chamber; determining a change from the baseline electrical activity to the sensed electrical heart activity for each of the plurality of pacing sites along the heart chamber; sorting the plurality of pacing sites in a first order based upon the changes in mechanical heart activity; sorting the plurality of pacing sites in a second order based upon the changes in electrical heart activity; and selecting a pacing site from the plurality of pacing sites as a common pacing site between the first order and the second order.