AUTOMATIC AND AMBULATORY MONITORING OF CONGESTIVE HEART FAILURE PATIENTS
First Claim
1. A method for automatically monitoring congestive heart failure (CHF) in a subject comprising:
- receiving signals generated by non-invasively monitoring respiratory and cardiac physiology of the subject, the signals conveying information concerning at least the subject'"'"'s breath rate and volume and the subject'"'"'s cardiac rate;
examining the received signals for indications of periodic breathing (PB);
examining the received signals for indications of reduced heart rate variability (HRV); and
indicating the status of CHF in the subject in dependence on the indications of PB and on the indications of HRV.
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Accused Products
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
30 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 generated by non-invasively monitoring respiratory and cardiac physiology of the subject, the signals conveying information concerning at least the subject'"'"'s breath rate and volume and the subject'"'"'s cardiac rate;
examining the received signals for indications of periodic breathing (PB);
examining the received signals for indications of reduced heart rate variability (HRV); and
indicating the status of CHF in the subject in dependence on the indications of PB and on the indications of HRV. - View Dependent Claims (2, 3, 4, 5)
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6. A system for automatically monitoring of congestive heart failure (CHF) in a subject
a wearable item having non-invasive sensors that monitor respiratory and cardiac physiology of the subject and provide signals conveying information concerning at least the subject'"'"'s breath rate and volume and the subject'"'"'s cardiac rate; a computing device operatively coupled to the sensors for examining the sensor signals for indications of periodic breathing (PB);
examining the sensor signals for indications of reduced heart rate variability (HRV); and
indicating the status of CHF in the subject in dependence on the indications of PB and on the indications of HRV. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A method for automatically monitoring congestive heart failure (CHF) in a subject comprising:
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receiving signals 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 the received signals for indications of periodic breathing (PB);
indicating the status of CHF in the subject to be of increased severity if indications of PB are found. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method for automatically monitoring congestive heart failure (CHF) in a subject comprising:
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receiving signals generated by non-invasively monitoring cardiac physiology of the subject, the signals conveying information concerning at least the subject'"'"'s cardiac rate;
examining the received signals for indications of reduced heart rate variability (HRV); and
indicating the status of CHF in the subject to be of increased severity if indications of reduced HRV are found - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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Specification