Combination of feedback on mechanical and electrical resynchronization to select therapy parameters
AssigneeMedtronic, Inc.
InventorSubham Ghosh
Life of this patent
Estimating the term…
Abstract
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.
Claims22
A method for selecting a pacing therapy site, comprising:
- extracting from a signal of mechanical heart activity a change from a baseline mechanical activity during pacing at each of a plurality of pacing sites along a heart chamber;
- extracting from a signal of electrical heart activity a change from a baseline electrical activity during pacing at 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.
A medical device system for selecting a pacing therapy site, comprising:
- a plurality of electrodes for producing a signal of electrical heart activity and for delivering cardiac pacing pulses to a plurality of pacing sites along a heart chamber;
- a sensor for producing a signal of mechanical heart activity;
- a processor means for extracting from the signal of mechanical heart activity a change from a baseline mechanical activity during pacing at each of the plurality of pacing sites and for extracting from the signal of electrical heart activity a change from a baseline electrical activity during pacing at each of the plurality of pacing sites;
- a processor sorting means for sorting the plurality of pacing sites 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;
- and
- a processor selecting means for selecting a pacing site from the plurality of pacing sites as a common pacing site between the first order and the second order.
A non-transitory, computer-readable storage medium comprising instructions that, when executed, cause a processor included in a medical device system to:
- extract from a signal of mechanical heart activity a change from a baseline mechanical activity during pacing at each of a plurality of pacing sites along a heart chamber;
- extract from a signal of electrical heart activity a change from a baseline electrical activity during pacing at each of the plurality of pacing sites in the heart chamber;
- sort the plurality of pacing sites 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;
- and
- select a pacing site from the plurality of pacing sites as a common pacing site between the first order and the second order.
An apparatus for selecting a pacing therapy site, comprising:
- processing means extracting from a signal of mechanical heart activity a change from a baseline mechanical activity during pacing at each of a plurality of pacing sites along a heart chamber;
- processing means for extracting from a signal of electrical heart activity a change from a baseline electrical activity during pacing at each of the plurality of pacing sites along the heart chamber;
- sorting means for sorting the plurality of pacing sites in a first order based upon the changes in mechanical heart activity;
- sorting means for sorting the plurality of pacing sites in a second order based upon the changes in electrical heart activity;
- and
- processing means selecting a pacing site from the plurality of pacing sites as a common pacing site between the first order and the second order.
Dependencies are inferred from the claim text.