CONFIGURABLE INTERMITTENT PACING THERAPY
First Claim
1. An apparatus comprising:
- at least one implantable cardiac depolarization sensing circuit, configured to obtain a sensed depolarization signal from a ventricle;
an electrical stimulation circuit, configured to provide pacing electrical stimulation energy to at least one implantable ventricular electrode; and
a pacing mode controller communicatively coupled to the cardiac depolarization sensing circuit and the electrical stimulation circuit, wherein the pacing mode controller is configured to;
deliver pacing therapy according to a first mode, wherein the first mode is a normal operating mode;
deliver pacing therapy according to a second pacing mode, wherein the second pacing mode increases mechanical stress on at least a particular portion of the ventricle as compared to the pacing therapy delivered during the first pacing mode;
deliver pacing therapy according to a third pacing mode, wherein the third pacing mode increases mechanical stress on at least a particular portion of the ventricle as compared to the pacing therapy delivered during the first pacing mode; and
alternate between the second and third pacing modes when switched from the normal operating mode to a stress augmentation mode.
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Abstract
This document discusses, among other things, an apparatus comprising at least one implantable cardiac depolarization sensing circuit, an electrical stimulation circuit, and a pacing mode controller. The implantable cardiac depolarization sensing circuit is configured to obtain a sensed depolarization signal from a ventricle and the electrical stimulation circuit is configured to provide pacing electrical stimulation energy to at least one implantable ventricular electrode. The pacing mode controller delivers pacing therapy according to a first pacing mode that is a normal operating mode, and delivers pacing therapy according to second and third pacing modes. The second and third pacing modes increase mechanical stress on at least a particular portion of the ventricle as compared to the pacing therapy delivered during the first pacing mode. The pacing mode controller alternates between the second and third pacing modes when switched from the normal operating mode to a stress augmentation mode.
123 Citations
32 Claims
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1. An apparatus comprising:
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at least one implantable cardiac depolarization sensing circuit, configured to obtain a sensed depolarization signal from a ventricle; an electrical stimulation circuit, configured to provide pacing electrical stimulation energy to at least one implantable ventricular electrode; and a pacing mode controller communicatively coupled to the cardiac depolarization sensing circuit and the electrical stimulation circuit, wherein the pacing mode controller is configured to; deliver pacing therapy according to a first mode, wherein the first mode is a normal operating mode; deliver pacing therapy according to a second pacing mode, wherein the second pacing mode increases mechanical stress on at least a particular portion of the ventricle as compared to the pacing therapy delivered during the first pacing mode; deliver pacing therapy according to a third pacing mode, wherein the third pacing mode increases mechanical stress on at least a particular portion of the ventricle as compared to the pacing therapy delivered during the first pacing mode; and alternate between the second and third pacing modes when switched from the normal operating mode to a stress augmentation mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method comprising:
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delivering pacing therapy according to a first pacing mode using an implantable device, wherein the first pacing mode is a normal operating mode; delivering pacing therapy according to a second pacing mode, wherein the second pacing mode increases mechanical stress on at least a particular portion of the ventricle as compared to the pacing therapy delivered during the first pacing mode; delivering pacing therapy according to a third pacing mode, wherein the third pacing mode increases mechanical stress on at least a particular portion of the ventricle as compared to the pacing therapy delivered during the first pacing mode; and alternating between the second and third pacing modes, when switched from the normal operating mode to a stress augmentation mode. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. An apparatus comprising:
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an implantable cardiac depolarization sensing circuit, configured to obtain a sensed depolarization signal from a ventricle; an electrical stimulation circuit, configured to provide pacing electrical stimulation energy to at least one implantable ventricular electrode and to at least one implantable atrial electrode; and a pacing mode controller communicatively coupled to the cardiac depolarization sensing circuit and the electrical stimulation circuit, wherein the pacing mode controller is configured to; deliver pacing therapy according to a second pacing mode, wherein the second pacing mode increases mechanical stress on at least a particular portion of the ventricle as compared to the pacing therapy delivered during the first pacing mode, wherein the second pacing mode includes pacing at least one ventricle (V), without timing the pacing of the at least one ventricle from an atrial cardiac event, when a V-V interval exceeds a specified ventricular interval; deliver pacing therapy according to a third pacing mode, wherein the third pacing mode increases mechanical stress on at least a particular portion of the ventricle as compared to the pacing therapy delivered during the first pacing mode, wherein the third pacing mode includes pacing an atrium and, in response thereto, triggering pacing of at least one ventricle after expiration of a specified fixed or dynamic AV delay without regard to any intrinsic cardiac depolarization event occurring in the ventricle; alternate between the second and third pacing modes when switched from the normal operating mode to a stress augmentation mode; and wherein the pacing mode controller is configured to deliver a programmable number of stress augmentation mode sessions as a stress augmentation burst and to deliver a programmable number of stress augmentation bursts per day.
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Specification