Method and apparatus to perform electrode combination selection
First Claim
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1. A medical device comprising:
- at least one implantable lead, wherein the at least one implantable lead includes two or more electrodes configured to be adjacent a heart of a patient;
an accelerometer providing an output signal, the accelerometer configured to monitor for stimulation of a phrenic nerve of the patient;
a controller operatively coupled to the at least one implantable lead and the accelerometer, the controller configured to;
deliver stimulation to two or more different electrode configurations, wherein the two or more different electrode configurations each use at least one of the two or more electrodes of the implantable lead;
determine a capture threshold of a heart of the patient for each of the two or more different electrode configurations;
determine an activation threshold of the phrenic nerve of the patient for each of the two or more different electrode configurations using the output signal of the accelerometer; and
outputting a measure related to the capture threshold and a measure of the activation threshold of the phrenic nerve for each of the two or more different electrode configurations.
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Abstract
Approaches for selecting an electrode combination of multi-electrode pacing devices are described. Electrode combination parameters that support cardiac function consistent with a prescribed therapy are evaluated for each of a plurality of electrode combinations. Electrode combination parameters that do not support cardiac function are evaluated for each of the plurality of electrode combinations. An order is determined for the electrode combinations based on the parameter evaluations. An electrode combination is selected based on the order, and therapy is delivered using the selected electrode combination.
600 Citations
20 Claims
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1. A medical device comprising:
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at least one implantable lead, wherein the at least one implantable lead includes two or more electrodes configured to be adjacent a heart of a patient; an accelerometer providing an output signal, the accelerometer configured to monitor for stimulation of a phrenic nerve of the patient; a controller operatively coupled to the at least one implantable lead and the accelerometer, the controller configured to; deliver stimulation to two or more different electrode configurations, wherein the two or more different electrode configurations each use at least one of the two or more electrodes of the implantable lead; determine a capture threshold of a heart of the patient for each of the two or more different electrode configurations; determine an activation threshold of the phrenic nerve of the patient for each of the two or more different electrode configurations using the output signal of the accelerometer; and outputting a measure related to the capture threshold and a measure of the activation threshold of the phrenic nerve for each of the two or more different electrode configurations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A medical device comprising:
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a power supply; a controller powered by the power supply, the controller configured to; deliver stimulation to two or more different electrode configurations of an implantable medical lead that has two or more electrodes, and determine a capture threshold of a heart chamber for each of the two or more different electrode configurations, and determine an activation threshold of a phrenic nerve for each of the two or more different electrode configurations using an output signal of an accelerometer; output an indication of the capture threshold and the activation threshold of the phrenic nerve for each of the two or more different electrode configurations; receive a selection of one of the two or more different electrode configurations, resulting in a selected electrode configuration; and deliver stimulation therapy to the heart chamber of the patient using the selected electrode configuration. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method comprising:
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delivering stimulation to two or more different electrode configurations of an implantable medical lead that has two or more electrodes; in response to the delivered stimulation, determining a capture threshold of a heart chamber for each of the two or more different electrode configurations, and determining an activation threshold of a phrenic nerve for each of the two or more different electrode configurations using an output signal of an accelerometer; determining a relative ranking of the two or more different electrode configurations for delivering stimulation therapy to the heart chamber of the patient based, at least in part, on the capture threshold and the activation threshold of the phrenic nerve for each of the two or more different electrode configurations; allowing selection of a selected electrode configuration from the two or more different electrode configurations; and programming an implantable medical device to deliver stimulation therapy to the heart chamber of the patient using the selected electrode configuration. - View Dependent Claims (20)
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Specification