Apparatus and method for diagnosis of cardiac disease using a respiration monitor
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United States of America Patent
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Sep 24, 2002
Grant Date -
N/A
app pub date -
Aug 1, 2000
filing date -
Aug 1, 2000
priority date (Note) -
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Abstract
The cardiac condition of a patient is determined by a cardiac monitor apparatus using a respiration parameter such as a current respiration signal or a respiration rate. The variability of the respiration parameter is used to generate a signal indicative of the current heart failure status of the patient, and more particularly whether the patient's condition has improved, worsened, or remained unchanged over a predetermined time period. The circuitry for detecting the respiration parameter may be implanted in the patient, for example as part of a pacemaker, while at least some of the analyzing circuitry may be external and remote from the patient. Alternatively the whole device may be implantable.
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