Assessing autonomic activity using baroreflex analysis
First Claim
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1. A method, comprising:
- implantably detecting changes in posture of a patient'"'"'s body;
determining baroreflex responses to the posture changes; and
determining an autonomic tone of the patient based on the baroreflex responses.
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Abstract
A method involves implantably detecting changes in posture of a patient'"'"'s body. Baroreflex responses to the posture changes are determined. An autonomic tone of the patient is determined based on the baroreflex responses. Based on the autonomic tone, various patient susceptibilities to disease may be determined, including susceptibilities to heart disease, arrhythmia, and/or sudden cardiac death.
237 Citations
30 Claims
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1. A method, comprising:
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implantably detecting changes in posture of a patient'"'"'s body;
determining baroreflex responses to the posture changes; and
determining an autonomic tone of the patient based on the baroreflex responses. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An apparatus capable of being implanted in a patient'"'"'s body, comprising:
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a posture sensor;
a heart rate sensor; and
a processor coupled to the posture sensor and the heart rate sensor, the processor configured to, measure the patient'"'"'s heart rate via the cardiac signal sensor;
detect a change in a posture of the patient'"'"'s body via the posture sensor; and
determine an autonomic tone of the patient'"'"'s body based on the patient'"'"'s heart rate measured during a time period corresponding to the change in posture. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A posture sensing system comprising:
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means for detecting a change in posture of a patient'"'"'s body;
means for measuring the patient'"'"'s heart rate during at least one of a first time period before the change in posture, a second time period during the change in posture, and a third time period after the change in posture; and
means for determining an autonomic tone of the patient based on the heart rate measured during the at least one of the first, second, and third time periods. - View Dependent Claims (30)
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Specification