Methods and devices for determining heart rate recovery
First Claim
1. In an implantable cardiac device, a method for determining heart rate recovery of a patient during exercise, said method comprising:
- (a) monitoring a changing heart rate of the patient and producing heart rate measurements;
(b) recording a monitored heart rate in the implantable cardiac device as a first heart rate when at least one of the following conditions occurs;
(i) at least one heart rate measurement exceeds a first heart rate measurement threshold and (ii) an activity level of the patient exceeds a first activity threshold;
(c) recording a monitored heart rate in the implantable cardiac device as a second heart rate when at least one of the following conditions occurs;
(i) at least one heart rate measurement falls below a second heart rate measurement threshold and (ii) an activity level of the patient falls below a second activity threshold; and
(d) using the implantable cardiac device to determine a measure of heart rate recovery based on the first heart rate and the second heart rate and storing the measure of heart rate recovery in the implantable cardiac device.
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Accused Products
Abstract
A device, such as an implantable cardiac device, and methods for determining heart rate recovery of a patient after exercise. Specifically, the method includes identifying a first heart rate indicative of exercise, a second heart rate indicative of a slow-down in exercise, and using the first and second heart rates to determine a measure of heart rate recovery. The first heart rate may be identified when a heart rate measurement and/or an activity level exceeds a predetermined threshold. The second heart rate may be identified based when a heart rate measurement and/or the activity level falls below a predetermined threshold. The device includes hardware and/or software for performing the described methods.
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Citations
7 Claims
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1. In an implantable cardiac device, a method for determining heart rate recovery of a patient during exercise, said method comprising:
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(a) monitoring a changing heart rate of the patient and producing heart rate measurements; (b) recording a monitored heart rate in the implantable cardiac device as a first heart rate when at least one of the following conditions occurs;
(i) at least one heart rate measurement exceeds a first heart rate measurement threshold and (ii) an activity level of the patient exceeds a first activity threshold;(c) recording a monitored heart rate in the implantable cardiac device as a second heart rate when at least one of the following conditions occurs;
(i) at least one heart rate measurement falls below a second heart rate measurement threshold and (ii) an activity level of the patient falls below a second activity threshold; and(d) using the implantable cardiac device to determine a measure of heart rate recovery based on the first heart rate and the second heart rate and storing the measure of heart rate recovery in the implantable cardiac device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification