Cardiopulmonary functional status assessment via metabolic response detection by implantable cardiac device
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United States of America Patent
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Feb 14, 2012
Grant Date -
Oct 9, 2008
app pub date -
Jun 16, 2008
filing date -
Aug 12, 2004
priority date (Note) -
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Abstract
An implantable cardiac device is configured and programmed to assess a patient's cardiopulmonary function by evaluating the patient's minute ventilation response. Such evaluation may be performed by computing a minute ventilation response slope, defined as the ratio of an incremental change in minute ventilation to an incremental change in measured activity level. The minute ventilation response slope may then be compared with a normal range to assess the patient's functional status.
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