Systems and methods for reducing occurrences of atrial arrhythmias
First Claim
1. For use with an implantable system, a method for reducing occurrences of atrial arrhythmias, the method comprising:
- (a) obtaining measures indicative of atrial pressure of a patient;
(b) monitoring for a change in the measures indicative of atrial pressure that is indicative of an increased vulnerability to an atrial arrhythmia wherein monitoring comprises monitoring atrial stretch based on the measures indicative of atrial pressure of the patient and detecting the increased vulnerability to an atrial arrhythmia when the monitored atrial stretch exceeds a corresponding threshold, or a change in the monitored atrial stretch exceeds a corresponding threshold; and
(c) in response to detecting the change in the measures indicative of atrial pressure that is indicative of the increased vulnerability to an atrial arrhythmia,selectively delivering pacing therapy that is adapted to reduce atrial pressure and thereby reduce vulnerability to an atrial arrhythmia, and/oradjusting pacing therapy to reduce atrial pressure and thereby reduce vulnerability to an atrial arrhythmia.
2 Assignments
0 Petitions
Accused Products
Abstract
A method for reducing occurrences of atrial arrhythmias includes obtaining measures indicative of atrial pressure of a patient, and monitoring for a change in the measures indicative of atrial pressure that is indicative of an increased vulnerability to an atrial arrhythmia. In response to detecting the change in the measures indicative of atrial pressure that is indicative of the increased vulnerability to an atrial arrhythmia, pacing therapy that is adapted to reduce atrial pressure and thereby reduce vulnerability to an atrial arrhythmia is selectively delivered. Additionally, or alternatively, pacing therapy is adjusted to reduce atrial pressure and thereby reduce vulnerability to an atrial arrhythmia.
9 Citations
19 Claims
-
1. For use with an implantable system, a method for reducing occurrences of atrial arrhythmias, the method comprising:
-
(a) obtaining measures indicative of atrial pressure of a patient; (b) monitoring for a change in the measures indicative of atrial pressure that is indicative of an increased vulnerability to an atrial arrhythmia wherein monitoring comprises monitoring atrial stretch based on the measures indicative of atrial pressure of the patient and detecting the increased vulnerability to an atrial arrhythmia when the monitored atrial stretch exceeds a corresponding threshold, or a change in the monitored atrial stretch exceeds a corresponding threshold; and (c) in response to detecting the change in the measures indicative of atrial pressure that is indicative of the increased vulnerability to an atrial arrhythmia, selectively delivering pacing therapy that is adapted to reduce atrial pressure and thereby reduce vulnerability to an atrial arrhythmia, and/or adjusting pacing therapy to reduce atrial pressure and thereby reduce vulnerability to an atrial arrhythmia. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. For use with an implantable system, a method for reducing occurrences of atrial arrhythmias, the method comprising:
-
(a) obtaining measures indicative of atrial pressure of a patient; (b) monitoring for a change in the measures indicative of atrial pressure that is indicative of an increased vulnerability to an atrial arrhythmia; and (c) in response to detecting the change in the measures indicative of atrial pressure that is indicative of the increased vulnerability to an atrial arrhythmia, selectively delivering pacing therapy that is adapted to reduce atrial pressure and thereby reduce vulnerability to an atrial arrhythmia, and/or adjusting pacing therapy to reduce atrial pressure and thereby reduce vulnerability to an atrial arrhythmia; wherein step (c) comprises adjusting at least one of atrio-ventricular (AV) delay and interventricular (VV) delay, to increase the filling time in the ventricles, which reduces blood in the atria by increasing a volume of blood being moved out of the atria, and thereby reduces vulnerability to an atrial arrhythmia by reducing atrial stretch.
-
-
10. For use with an implantable system, a method for reducing occurrences of atrial arrhythmias, the method comprising:
-
(a) obtaining measures indicative of atrial pressure of a patient; (b) monitoring for a change in the measures indicative of atrial pressure that is indicative of an increased vulnerability to an atrial arrhythmia; and (c) in response to detecting the change in the measures indicative of atrial pressure that is indicative of the increased vulnerability to an atrial arrhythmia, selectively delivering pacing therapy that is adapted to reduce atrial pressure and thereby reduce vulnerability to an atrial arrhythmia, and/or adjusting pacing therapy to reduce atrial pressure and thereby reduce vulnerability to an atrial arrhythmia; wherein step (c) comprises adjusting timing between pacing at different locations within at least one of the ventricles during delivery of multisite ventricular pacing, to increase the filling time in the ventricles, which reduces blood in the atria by increasing a volume of blood being moved out of the atria, and thereby reduces vulnerability to an atrial arrhythmia by reducing atrial stretch.
-
-
11. For use with an implantable system, a method for reducing occurrences of atrial arrhythmias, the method comprising:
-
(a) obtaining measures indicative of atrial stretch of a patient; (b) monitoring for a change in the measures indicative of atrial stretch that is indicative of an increased vulnerability to an atrial arrhythmia; and (c) in response to detecting the change in the measures indicative of atrial stretch that is indicative of the increased vulnerability to an atrial arrhythmia, selectively delivering pacing therapy that is adapted to reduce atrial stretch and thereby reduce vulnerability to an atrial arrhythmia, and/or adjusting pacing therapy to reduce atrial stretch and thereby reduce vulnerability to an atrial arrhythmia. - View Dependent Claims (12)
-
-
13. An implantable system for reducing occurrences of atrial arrhythmias, comprising:
-
a sensor configured to obtain measures indicative of atrial pressure of a patient; a monitor configured to monitor for a change in the measures indicative of atrial pressure that is indicative of an increased vulnerability to an atrial arrhythmia, wherein the monitor is adapted to monitor atrial stretch based on the measures indicative of atrial pressure of the patient, and detect the increased vulnerability to an atrial arrhythmia when the monitored atrial stretch exceeds a corresponding threshold, or a change in the monitored atrial stretch exceeds a corresponding threshold; and a controller configured to control pacing therapy; wherein in response to the monitor detecting the change in the measures indicative of atrial pressure that is indicative of an increased vulnerability to an atrial arrhythmia, the controller is configured to selectively deliver pacing therapy that is adapted to reduce atrial pressure and thereby reduce vulnerability to an atrial arrhythmia, and/or adjust pacing therapy to reduce atrial pressure and thereby reduce vulnerability to an atrial arrhythmia. - View Dependent Claims (14)
-
-
15. An implantable system for reducing occurrences of atrial arrhythmias, comprising:
-
a sensor configured to obtain measures indicative of atrial pressure of a patient; a monitor configured to monitor for a change in the measures indicative of atrial pressure that is indicative of an increased vulnerability to an atrial arrhythmia; and a controller configured to control pacing therapy; wherein in response to the monitor detecting the change in the measures indicative of atrial pressure that is indicative of an increased vulnerability to an atrial arrhythmia, the controller is configured to selectively deliver pacing therapy that is adapted to reduce atrial pressure and thereby reduce vulnerability to an atrial arrhythmia, and/or adjust pacing therapy to reduce atrial pressure and thereby reduce vulnerability to an atrial arrhythmia; wherein in response to the monitor detecting the change in the measures indicative of atrial pressure that is indicative of an increased vulnerability to an atrial arrhythmia, the controller is configured to; selectively deliver pacing to overdrive the sinus rate, which reduces blood volume in the atria, and thereby reduces vulnerability to an atrial arrhythmia by reducing atrial stretch; adjust at least one of atrio-ventricular (AV) delay and interventricular (VV) delay, to increase the filling time in the ventricles, which reduces blood in the atria by increasing a volume of blood being moved out of the atria, and thereby reduces vulnerability to an atrial arrhythmia by reducing atrial stretch; adjust timing between pacing at different locations within at least one of the ventricles during delivery of multisite ventricular pacing, to increase the filling time in the ventricles, which reduces blood in the atria by increasing a volume of blood being moved out of the atria, and thereby reduces vulnerability to an atrial arrhythmia by reducing atrial stretch; and
/orselectively deliver atrial overdrive pacing to reduce occurrences of ectopic atrial activity that might initiate an atrial arrhythmia, and thereby reduces vulnerability to an atrial arrhythmia.
-
-
16. An implantable system for reducing occurrences of atrial arrhythmias, comprising:
-
a sensor configured to obtain measures indicative of atrial stretch of a patient; a monitor configured to monitor for a change in the measures indicative of atrial stretch that is indicative of an increased vulnerability to an atrial arrhythmia; and a controller configured to control pacing therapy; wherein in response to the monitor detecting the change in the measures indicative of atrial stretch that is indicative of an increased vulnerability to an atrial arrhythmia, the controller is configured to selectively deliver pacing therapy that is adapted to reduce atrial pressure and thereby reduce vulnerability to an atrial arrhythmia, and/or adjust pacing therapy to reduce atrial pressure and thereby reduce vulnerability to an atrial arrhythmia. - View Dependent Claims (17, 18, 19)
-
Specification