Method and apparatus for reducing early recurrence of atrial fibrillation with defibrillation shock therapy
First Claim
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1. A method for delivering atrial defibrillation therapy, comprising:
- detecting an episode of atrial fibrillation;
sensing ventricular depolarizations (R waves);
delivering a first ventricular pacing pulse after a sensed R wave; and
delivering an atrial defibrillation shock without an accompanying second ventricular pacing pulse at a specified time after the first ventricular pacing pulse but inhibiting the atrial defibrillation shock if a second R wave subsequent to the first ventricular pacing pulse occurs before the specified time.
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Abstract
An apparatus and method for delivering electrical shock therapy in order to treat atrial tachyarrhythmias such as fibrillation in which atrial defibrillation pulses are delivered within a maximum pre-shock R—R synchronization interval. The method has been found to reduce the incidence of early recurrence of atrial fibrillation (ERAF).
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Citations
12 Claims
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1. A method for delivering atrial defibrillation therapy, comprising:
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detecting an episode of atrial fibrillation;
sensing ventricular depolarizations (R waves);
delivering a first ventricular pacing pulse after a sensed R wave; and
delivering an atrial defibrillation shock without an accompanying second ventricular pacing pulse at a specified time after the first ventricular pacing pulse but inhibiting the atrial defibrillation shock if a second R wave subsequent to the first ventricular pacing pulse occurs before the specified time. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for delivering atrial defibrillation therapy to an atrium, comprising:
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sensing channels for sensing atrial and ventricular depolarizations (R waves);
a ventricular pacing channel for delivering ventricular pacing pulses;
an atrial defibrillation pulse generator and electrodes disposed in proximity to the atrium; and
a controller for detecting atrial fibrillation and for controlling delivery of atrial defibrillation shocks and ventricular pacing pulses, wherein, upon detection of atrial fibrillation, the controller is configured to;
deliver a first ventricular pacing pulse after a sensed R wave; and
deliver an atrial defibrillation shock without an accompanying second ventricular pacing pulse at a specified time after the first ventricular pacing pulse but inhibit the atrial defibrillation shock if an R wave subsequent to the first ventricular pacing pulse occurs before the specified time. - View Dependent Claims (9, 10, 11, 12)
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Specification