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US 2012/0232604 A1Published application
System to treat av-conducted ventricular tachyarrhythmia
AssigneeCardiac Pacemakers, Inc.
InventorsJulia Moffitt, Andrew P. Kramer, Imad Libbus
Life of this patent
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Abstract
Various aspects of the present subject matter provide devices and methods to treat AV-conducted ventricular tachyarrhythmia (AVCVT). According to various embodiments of the method, an AVCVT is sensed, an IVC-LA fat pad is stimulated when the AVCVT is sensed to block AV conduction, and bradycardia support pacing is provided while the IVC-LA fat pad is stimulated. Other aspects and embodiments are provided herein.
Claims20
An implantable medical device, comprising:
- pacing circuitry configured to provide bradycardia support pacing to maintain a minimum heart rate;
- an atrial rate detector configured to detect detect an atrial rate;
- a neural stimulation circuit configured to apply neural stimulation to an inferior vena cava-left atrium (IVC-LA) fat pad;
- and
- a controller operably connected to the shockable event detector, the shock pulse generator, the pacing circuitry, the atrial rate detector and the neural stimulation circuit, wherein the controller the controller is configured to:
- respond to a detected cardiac event indicated for the electrical shock by controlling the shock pulse generator to electrically shock cardiac tissue;
- and
- control the neural stimulator to deliver neural stimulation to the IVC-LA fat pad on condition that the detected atrial rate exceeds a threshold.
5 more elements
An implantable medical device, comprising:
- pacing circuitry configured to provide bradycardia support pacing to maintain a minimum heart rate;
- an atrial rate detector configured to detect detect an atrial rate;
- a neural stimulation circuit configured to apply neural stimulation to an inferior vena cava-left atrium (IVC-LA) fat pad;
- a controller operably connected to the shockable event detector, the shock pulse generator, the pacing circuitry, the atrial rate detector and the neural stimulation circuit, wherein the controller the controller is configured to:
- respond to a detected cardiac event indicated for the electrical shock by controlling the shock pulse generator to electrically shock cardiac tissue;
- and
- control the neural stimulator to deliver neural stimulation to the IVC-LA fat pad on condition that the detected atrial rate exceeds a threshold;
- a shockable event detector configured to detect a cardiac event indicated for an electrical shock to terminate the cardiac event;
- and
- a shock pulse generator configured to electrically shock cardiac tissue.
7 more elements
An implantable medical device, comprising:
- pacing circuitry configured to provide bradycardia support pacing to maintain a minimum heart rate;
- an atrial rate detector configured to sense an intrinsic signal from a right atrium to detect an atrial rate;
- a ventricular rate detector configured to sense an intrinsic signal from a right ventricle to detect a ventricular rate.
- a neural stimulation circuit configured to apply neural stimulation to an inferior vena cava-left atrium (IVC-LA) fat pad;
- a controller operably connected to the shockable event detector, the shock pulse generator, the pacing circuitry, the atrial rate detector and the neural stimulation circuit, wherein the controller the controller is configured to:
- respond to a detected cardiac event indicated for the electrical shock by controlling the shock pulse generator to electrically shock cardiac tissue;
- control the neural stimulator to deliver neural stimulation to the IVC-LA fat pad on condition that the detected atrial rate exceeds a threshold and the detected ventricular rate follows the detected atrial rate;
- and
- adjust the neural stimulation if the atrial rate is not reduced by the neural stimulation;
- a shockable event detector configured to detect a cardiac event indicated for an electrical shock to terminate the cardiac event;
- and
- a shock pulse generator configured to electrically shock cardiac tissue.
9 more elements
Dependencies are inferred from the claim text.