APPARATUS AND METHOD FOR PACING MODE SWITCHING DURING ATRIAL TACHYARRHYTHMIAS
First Claim
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1. A method for operating a cardiac pacemaker, comprising:
- sensing atrial depolarizations through an atrial sensing channel;
sensing ventricular depolarizations through one or more ventricular sensing channels;
pacing a ventricle in accordance with a particular primary pacing mode that delivers paces to only one ventricle;
switching the pacemaker to an atrial fibrillation pacing mode upon detection of an atrial tachyarrhythmia, wherein the atrial fibrillation mode includes a biventricular pacing mode that delivers paces to both left and right ventricles.
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Abstract
A method for operating a cardiac pacemaker in which the mode of operation of the pacemaker is altered in response to detecting an episode of atrial tachycardia. In accordance with the invention, the pacemaker'"'"'s pacing mode is altered in a manner that attempts to maintain hemodynamic stability during the atrial tachycardia. Such a mode switch is particularly applicable to pacemaker patients suffering from some degree of congestive heart failure.
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Citations
20 Claims
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1. A method for operating a cardiac pacemaker, comprising:
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sensing atrial depolarizations through an atrial sensing channel;
sensing ventricular depolarizations through one or more ventricular sensing channels;
pacing a ventricle in accordance with a particular primary pacing mode that delivers paces to only one ventricle;
switching the pacemaker to an atrial fibrillation pacing mode upon detection of an atrial tachyarrhythmia, wherein the atrial fibrillation mode includes a biventricular pacing mode that delivers paces to both left and right ventricles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A cardiac pacemaker, comprising:
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an atrial sensing channel for sensing atrial depolarizations;
a ventricular sensing channel for sensing ventricular depolarizations;
right and left pacing channels for delivering paces to the right and left ventricles;
a controller for controlling the delivery of paces in accordance with a primary pacing mode that delivers paces to only one ventricle;
wherein the controller is configured to switch the pacemaker to an atrial fibrillation pacing mode upon detection of an atrial tachyarrhythmia, wherein the atrial fibrillation pacing mode includes a biventricular pacing mode that delivers paces to both left and right ventricles. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification