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US 9,002,454 B2Granted
Tracking pacing effectiveness based on waveform features
AssigneeMedtronic, Inc.
InventorsSubham Ghosh, Jeffrey M Gillberg, Aleksandre T Sambelashvili
Life of this patent
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Abstract
Methods and/or devices may be configured to track effectiveness of pacing therapy by monitoring two or more electrical vectors of the patient's heart during pacing therapy and analyzing at least one feature of a morphological waveform within each of the two or more electrical vectors.
Claims20
A system for tracking effectiveness of pacing therapy to a patient:
- a therapy delivery module configured to deliver pacing therapy to a patient's heart;
- sensing apparatus configured to monitor electrical activity of the patient's heart, wherein the sensing apparatus comprises a plurality of electrodes;
- a sensing module coupled to the sensing apparatus and configured to monitor two or more electrical vectors of the patient's heart using the plurality of electrodes of the sensing apparatus during pacing therapy;
- and
- a control module coupled to the therapy delivery module and to the sensing module and configured to:
- initiate the delivery of pacing therapy to the patient's heart over a plurality of heartbeats,
- monitor two or more electrical vectors of the patient's heart during pacing therapy for each paced event of a plurality of paced events occurring over a period of time, wherein monitoring the two or more electrical vectors comprises sensing a morphologic waveform corresponding to the paced event at each electrical vector of the two or more electrical vectors using a different pair of electrodes of the plurality of electrodes,
- analyze whether each paced event of the plurality of paced events has a predetermined level of effectiveness based on at least one feature of the sensed morphologic waveform for each electrical vector of the two or more monitored electrical vectors, and
- track a pacing effectiveness ratio, the pacing effectiveness ratio being the ratio between the amount of paced events over time having a predetermined level of effectiveness and the number of paced events.
6 more elements
A method of tracking effectiveness of pacing therapy provided using an implantable medical device, wherein the method comprises:
- delivering pacing therapy to a patient's heart using one or more pacing electrodes of an implantable medical device, wherein the pacing therapy is delivered over a plurality of heartbeats;
- monitoring two or more electrical vectors of the patient's heart during pacing therapy for each paced event of a plurality of paced events occurring over a period of time, wherein monitoring the two or more electrical vectors comprises sensing a morphologic waveform corresponding to the paced event at each electrical vector of the two or more electrical vectors using a different pair of electrodes of the implantable medical device;
- analyzing, using the implantable medical device, whether each paced event of the plurality of paced events has a predetermined level of effectiveness based on at least one feature of the sensed morphologic waveform for each electrical vector of the two or more monitored electrical vectors;
- and
- tracking, using the implantable medical device, a pacing effectiveness ratio, the pacing effectiveness ratio being the ratio between the amount of paced events over time having a predetermined level of effectiveness and the number of paced events.
2 more elements
Dependencies are inferred from the claim text.