Automatic and ambulatory monitoring of congestive heart failure patients
First Claim
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1. A method for automatically monitoring congestive heart failure (CHF) in a subject comprising:
- receiving signals, from a sensor, generated by non-invasively monitoring respiratory physiology of the subject, the signals conveying information concerning at least the subject'"'"'s breath rate and volume;
examining, with a processor, the received signals for determination of a minute ventilation (VE) signal and for indications of periodic breathing (PB), wherein the presence or absence of PB is determined through a multi-scale entropy analysis of the received signals and a power spectrum analysis of the VE signal;
indicating the status of CHF in the subject to be of increased severity if indications of PB are found.
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Abstract
This invention provides methods for non-invasively monitoring patients with congestive heart failure (CHF) and for reporting and/or warning of changes in the patients'"'"' status. The methods gather physiological data and combine the data into parameters by which the severity of CHF can be judged. Preferred parameters include periodic breathing and heart rate variability. This invention also provides systems for carrying out these methods which permit patients to engage in their normal daily activities. Preferably, physiological data analysis is performed by a portable electronic unit carried by the patients.
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Citations
16 Claims
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1. A method for automatically monitoring congestive heart failure (CHF) in a subject comprising:
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receiving signals, from a sensor, generated by non-invasively monitoring respiratory physiology of the subject, the signals conveying information concerning at least the subject'"'"'s breath rate and volume; examining, with a processor, the received signals for determination of a minute ventilation (VE) signal and for indications of periodic breathing (PB), wherein the presence or absence of PB is determined through a multi-scale entropy analysis of the received signals and a power spectrum analysis of the VE signal; indicating the status of CHF in the subject to be of increased severity if indications of PB are found. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification