Method and system for monitoring heart failure using rate change dynamics
AssigneeMedtronic, Inc.
InventorMalcolm J. Begemann
Life of this patent
Estimating the term…
Abstract
A method of monitoring heart failure is provided. A baseline heart rate change value is determined, wherein the baseline heart rate change value comprises a speed at which a first initial heart rate changes to a second initial heart rate. At least one subsequent heart rate change value is also determined, wherein the subsequent heart rate change value comprises a subsequent speed at which a first subsequent heart rate changes to a second subsequent heart rate. The subsequent heart rate change value is compared to the baseline heart rate change value to obtain at least one heart failure value. Systems and programs for using the method are also provided.
Claims60
A method of monitoring heart failure, comprising:
- measuring a first initial heart rate;
- measuring a second initial heart rate;
- determining a baseline heart rate change value that comprises a speed at which the first initial heart rate changes to the second initial heart rate;
- determining at least one subsequent heart rate change value that comprises a subsequent speed at which a first subsequent heart rate changes to a second subsequent heart rate;
- and
- comparing the subsequent heart rate change value to the baseline heart rate change value to obtain at least one heart failure value.
An implantable medical device, comprising:
- a processor;
- at least one sensing circuit operably connected to the processor;
- at least one sensing electrode operably connected to the processor and adapted for placement within a heart
- wherein
- a first initial heart rate and a second initial heart rate are measured, a baseline heart rate change value is determined for a speed at which the first initial heart rate changes to the second initial heart rate, a subsequent heart rate change value is determined for a subsequent speed at which a first subsequent heart rate changes to a second subsequent heart rate and the subsequent heart rate change value is compared to the baseline heart rate change value to obtain at least one heart failure value.
An implantable medical system, comprising:
- means for measuring a first initial heart rate;
- means for measuring a second initial heart rate;
- means for determining a baseline heart rate change value that comprises a speed at which the first initial heart rate changes to the second initial heart rate;
- means for determining at least one subsequent heart rate change value that comprises a subsequent speed at which a first subsequent heart rate changes to a second subsequent heart rate;
- and
- means for comparing the subsequent heart rate change value to the baseline heart rate change value to obtain at least one heart failure value.
A computer usable medium including a program for monitoring heart failure, comprising:
- computer program code that measures a first initial heart rate;
- computer program code that measures a second initial heart rate;
- computer program code that determines a baseline heart rate change value that comprises a speed at which the first initial heart rate changes to the second initial heart rate;
- computer program code that determines at least one subsequent heart rate change value that comprises a subsequent speed at which a first subsequent heart rate changes to a second subsequent heart rate;
- and
- computer program code that compares the subsequent heart rate change value to the baseline heart rate change value to obtain at least one heart failure value.
Dependencies are inferred from the claim text.