Addressing recurrent atrial fibrillation
First Claim
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1. A method comprising:
- monitoring for episodes of atrial fibrillation in an evaluation period;
computing a measure of episodes of detected atrial fibrillation in the evaluation period that are followed by detected recurrent episodes of atrial fibrillation;
comparing the measure to a threshold; and
setting an overdrive pacing parameter as a function of the comparison.
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Abstract
Techniques for applying overdrive pacing to one or both atria following termination of an AF episode, to prevent a recurrent AF episode. An implantable medical device such as a pacemaker applies overdrive pacing according to overdrive pacing parameters, and sets the parameters as a function of the response of the patient to overdrive pacing. The parameters may be adjusted upward or downward, so that overdrive pacing may be applied effectively but not over-applied.
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Citations
18 Claims
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1. A method comprising:
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monitoring for episodes of atrial fibrillation in an evaluation period; computing a measure of episodes of detected atrial fibrillation in the evaluation period that are followed by detected recurrent episodes of atrial fibrillation; comparing the measure to a threshold; and setting an overdrive pacing parameter as a function of the comparison. - View Dependent Claims (2, 3, 4, 5)
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6. A computer-readable medium comprising instructions for causing a programmable processor to:
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monitor for episodes of atrial fibrillation in an evaluation period; compute a measure of episodes of detected atrial fibrillation in the evaluation period that are followed by detected recurrent episodes of atrial fibrillation; compare the measure to a threshold; and set an overdrive pacing parameter as a function of the comparison. - View Dependent Claims (7, 8, 9, 10)
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11. An implantable medical device comprising:
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at least one electrode disposed proximate to an atrium of a heart; a pulse generator coupled to the electrode; and a processor to control the pulse generator to deliver overdrive pacing therapy to the atrium via the electrode according to an overdrive pacing parameter following an episode of atrial fibrillation, monitor for episodes of atrial fibrillation in an evaluation period, compute a measure of episodes of detected atrial fibrillation in the evaluation period that are followed by detected recurrent episodes of atrial fibrillation, compare the measure to a threshold and set the overdrive pacing parameter as a function of the comparison. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification