SYSTEM AND METHOD FOR IMPROVING CRT RESPONSE AND IDENTIFYING POTENTIAL NON-RESPONDERS TO CRT THERAPY
First Claim
1. A method comprising:
- selecting an electrode configuration from a plurality of electrode configurations associated with electrodes of an implantable lead;
sensing activity of the right ventricle and the left ventricle;
determining an interval between sensed activity of the right ventricle and sensed activity of the left ventricle; and
determining, based at least in part on the interval, whether the selected electrode configuration is suitable for delivery of cardiac resynchronization therapy.
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Abstract
A method is disclosed that includes selecting an electrode configuration from a plurality of electrode configurations associated with electrodes of an implantable lead, sensing activity of the right ventricle and the left ventricle, determining an interval between sensed activity of the right ventricle and sensed activity of the left ventricle and determining whether the selected electrode configuration is suitable based at least in part on the interval. In one embodiment, an implantable device performs such a method to improve patient response to the CRT therapy, for example, by selecting a different electrode configuration if the current configuration is not suitable. Other exemplary methods, devices, systems, etc., are also disclosed.
127 Citations
18 Claims
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1. A method comprising:
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selecting an electrode configuration from a plurality of electrode configurations associated with electrodes of an implantable lead; sensing activity of the right ventricle and the left ventricle; determining an interval between sensed activity of the right ventricle and sensed activity of the left ventricle; and determining, based at least in part on the interval, whether the selected electrode configuration is suitable for delivery of cardiac resynchronization therapy. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method comprising:
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selecting an electrode configuration from a plurality of electrode configurations associated with a left ventricular lead bearing a plurality of electrodes; acquiring an interventricular conduction delay time; and based at least in part on the interventricular conduction delay time, deciding whether to select a different electrode configuration. - View Dependent Claims (11, 12, 13, 14)
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15. An implantable cardiac therapy system comprising:
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at least one lead configured for implant in a patient and comprising a plurality of left ventricular electrodes and at least one right ventricular electrode; an implantable cardiac therapy device configured to couple to the at least one lead and comprising a controller configured to select an electrode configuration from a plurality of electrode configurations associated with the right ventricular and left ventricular electrodes, to receive sensed activity from the right ventricular and left ventricular electrodes, to determine an interval between sensed activity of the right ventricle and sensed activity of the left ventricle, and to determine, based at least in part on the interval, whether the selected electrode configuration is suitable for delivery of cardiac resynchronization therapy. - View Dependent Claims (16, 17, 18)
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Specification