Non-invasive detection of phrenic nerve stimulation
First Claim
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1. A non-invasive system for detecting phrenic nerve stimulation during pacing therapy comprising:
- external electrode apparatus comprising a plurality of external electrodes configured to be located proximate tissue of a patient; and
computing apparatus coupled to the external electrode apparatus and configured to;
monitor electrical activity using two or more external electrodes of the plurality of external electrodes during delivery of pacing therapy, wherein such monitoring results in two or more electrical signals measured using the two or more external electrodes indicative of whether or not phrenic nerve stimulation occurred as a result of the pacing therapy delivered, anddetermine whether the patient'"'"'s phrenic nerve is stimulated by the pacing therapy based on the monitored electrical activity, wherein determination of whether the patient'"'"'s phrenic nerve is stimulated comprises comparison of each of the electrical signals measured using the two or more external electrodes or a value determined from the electrical signals measured using the two or more external electrodes to a phrenic nerve stimulation threshold.
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Abstract
Systems, methods, and graphical user interfaces are described herein for non-invasively detecting phrenic nerve stimulation during cardiac pacing therapy. Phrenic nerve stimulation information may be generated for one or more electrical pacing vectors at one or more power configurations. The phrenic nerve stimulation information may be displayed to a user for use in configuring and/or evaluating cardiac pacing therapy.
357 Citations
25 Claims
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1. A non-invasive system for detecting phrenic nerve stimulation during pacing therapy comprising:
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external electrode apparatus comprising a plurality of external electrodes configured to be located proximate tissue of a patient; and computing apparatus coupled to the external electrode apparatus and configured to; monitor electrical activity using two or more external electrodes of the plurality of external electrodes during delivery of pacing therapy, wherein such monitoring results in two or more electrical signals measured using the two or more external electrodes indicative of whether or not phrenic nerve stimulation occurred as a result of the pacing therapy delivered, and determine whether the patient'"'"'s phrenic nerve is stimulated by the pacing therapy based on the monitored electrical activity, wherein determination of whether the patient'"'"'s phrenic nerve is stimulated comprises comparison of each of the electrical signals measured using the two or more external electrodes or a value determined from the electrical signals measured using the two or more external electrodes to a phrenic nerve stimulation threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A non-invasive method for detecting phrenic nerve stimulation during pacing therapy comprising:
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monitoring electrical activity using two or more external electrodes of a plurality of external electrodes during delivery of pacing therapy, wherein the plurality of external electrodes located proximate tissue of the patient, and further wherein such monitoring results in two or more electrical signals measured using the two or more external electrodes indicative of whether or not phrenic nerve stimulation occurred as a result of the pacing therapy delivered; and determining whether the patient'"'"'s phrenic nerve is stimulated by the pacing therapy based on the monitored electrical activity, wherein determining whether the patient'"'"'s phrenic nerve is stimulated by the pacing therapy based on the monitored electrical activity comprises comparing each of the electrical signals measured using the two or more external electrodes or a value determined from the electrical signals measured using the two or more external electrodes to a phrenic nerve stimulation threshold. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A non-invasive system for detecting phrenic nerve stimulation during pacing therapy comprising:
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electrode means for monitoring electrical activity of a patient during delivery of pacing therapy, wherein the electrode means comprises two or more external electrodes configured to be located on the anterior torso of the patient; and computing means for determining whether the patient'"'"'s phrenic nerve is stimulated by the pacing therapy based on monitored electrical activity, wherein the electrode means for monitoring electrical activity using the two or more external electrodes results in two or more electrical signals measured using the two or more external electrodes indicative of whether or not phrenic nerve stimulation occurred as a result of the pacing therapy delivered, and wherein the computing means comprises means for determining whether the patient'"'"'s phrenic nerve is stimulated by the pacing therapy based on the monitored electrical activity, wherein the means for determining whether the patient'"'"'s phrenic nerve is stimulated comprises means for comparing each of the electrical signals measured using the two or more external electrodes or a value determined from the electrical signals measured using the two or more external electrodes to a phrenic nerve stimulation threshold.
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15. A non-invasive system for use in detecting phrenic nerve stimulation during pacing therapy using one or more pacing electrodes of a plurality of pacing electrodes defining one or more of electrical pacing vectors, the system comprising:
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external electrode apparatus comprising a plurality of external electrodes configured to be located proximate tissue of a patient; display apparatus comprising a graphical user interface, wherein the graphical user interface is configured to present information for use in assisting a user in at least one of evaluating pacing therapy and configuring pacing therapy; and computing apparatus coupled to the external electrode apparatus and display apparatus and configured to; monitor electrical activity using two or more external electrodes of the plurality of external electrodes during delivery of pacing therapy using each electrical pacing vector of one or more electrical pacing vectors, wherein such monitoring results in two or more electrical signals measured using the two or more external electrodes indicative of whether or not phrenic nerve stimulation occurred as a result of the pacing therapy delivered, determine whether the patient'"'"'s phrenic nerve is stimulated by the pacing therapy delivered using each electrical pacing vector of the one or more electrical pacing vectors based on the monitored electrical activity, wherein determination of whether the patient'"'"'s phrenic nerve is stimulated comprises comparison of each of the electrical signals measured using the two or more external electrodes or a value determined from the electrical signals measured using the two or more external electrodes to a phrenic nerve stimulation threshold, and display, on the graphical user interface, phrenic nerve stimulation information for the one or more electrical pacing vectors for use in assisting a user in at least one of evaluating pacing therapy and configuring pacing therapy. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. A non-invasive system for detecting phrenic nerve stimulation during pacing therapy comprising:
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at least one implantable electrode; external electrode apparatus comprising a plurality of external electrodes configured to be located proximate tissue of a patient; and computing apparatus coupled to the external electrode apparatus and configured to; control delivery of pacing therapy using the at least one implantable electrode, monitor electrical activity using two or more external electrodes of the plurality of external electrodes during delivery of pacing therapy using the at least one implantable electrode, wherein such monitoring results in two or more electrical signals measured using the two or more external electrodes indicative of whether or not phrenic nerve stimulation occurred as a result of the pacing therapy delivered, and determine whether the patient'"'"'s phrenic nerve is stimulated by the delivered pacing therapy based on the two or more electrical signals measured using the two or more external electrodes, wherein the determination of whether the patient'"'"'s phrenic nerve is stimulated comprises comparing the two or more electrical signals measured using the two or more external electrodes or a value determined from the two or more electrical signals measured using the two or more external electrodes to a phrenic nerve stimulation threshold. - View Dependent Claims (24, 25)
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Specification