Methods and systems for optimizing cardiac pacing intervals for various physiologic factors
First Claim
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1. A method for performing automatic pacing interval optimization for each of a plurality of different body positions, comprising:
- (a) monitoring a patient'"'"'s body position;
(b) for each of the plurality of different body positions, pacing the patient'"'"'s heart using a plurality of different pacing intervals and measuring a corresponding hemodynamic response for each of the plurality of different pacing interval;
(c) storing information that correlates the body positions, pacing intervals and measures of hemodynamic response; and
(d) determining at least one preferred pacing interval, for each body position, based on the stored information;
wherein steps (a) through (d) are performed by an implantable device without human interaction.
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Abstract
Methods and systems for performing pacing interval optimization are provided. One or more optimum pacing interval is determined for each of a plurality of different ranges of heart rate, different levels of autonomic tone, different body temperature ranges, or combinations thereof. The information (e.g., measures of hemodynamic response) collected to perform pacing interval optimization can be collected and stored in a table over disjoint periods of time. Such measures of hemodynamic performance are preferably relative measures, but can alternatively be absolute measures.
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27 Claims
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1. A method for performing automatic pacing interval optimization for each of a plurality of different body positions, comprising:
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(a) monitoring a patient'"'"'s body position; (b) for each of the plurality of different body positions, pacing the patient'"'"'s heart using a plurality of different pacing intervals and measuring a corresponding hemodynamic response for each of the plurality of different pacing interval; (c) storing information that correlates the body positions, pacing intervals and measures of hemodynamic response; and (d) determining at least one preferred pacing interval, for each body position, based on the stored information; wherein steps (a) through (d) are performed by an implantable device without human interaction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An implantable system for performing automatic pacing interval optimization for each of a plurality of different body positions, comprising:
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means for monitoring a patient'"'"'s body position; means for pacing the patient'"'"'s heart using a plurality of different pacing intervals, for each of the plurality of different body positions; means for measuring hemodynamic response as the patient'"'"'s heart is paced using the plurality of different pacing intervals, for each of the plurality of different body positions; means for storing information that correlates the body positions, pacing intervals and measures of hemodynamic response; and means for determining at least one preferred pacing interval, for each body position, based on the stored information; wherein each said means performs its function without human interaction. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification