System and method for assessing pulmonary performance through transthoracic impedance monitoring
First Claim
1. A system for assessing pulmonary performance through transthoracic impedance monitoring, comprising:
- an implantable medical device to directly collect transthoracic impedance measures;
a correlation component to correlate the transthoracic impedance measures to pulmonary functional measures relative to performance of at least one respiration cycle and to group the transthoracic impedance measures into at least one measures set corresponding to one of an inspiratory phase and an expiratory phase; and
an analysis component to evaluate the pulmonary functional measures which were determined from the at least one transthoracic impedance measures set to identify a respiratory pattern relative to the inspiratory phase or the expiratory phase to represent pulmonary performance, comprising;
a trending subcomponent to evaluate a trend in changes in the respiratory pattern relative to at least one previous respiratory pattern;
a monitoring subcomponent to monitor the trend and the changes; and
an alert subcomponent to compare the trends to thresholds and to generate an alert upon sufficient deviation from the thresholds.
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Abstract
A system and method for assessing pulmonary performance through transthoracic impedance monitoring is described. Transthoracic impedance measures are directly collected through an implantable medical device. The transthoracic impedance measures are correlated to pulmonary functional measures relative to performance of at least one respiration cycle. The transthoracic impedance measures are grouped into at least one measures set corresponding to one of an inspiratory phase and an expiratory phase. The at least one transthoracic impedance measures set are evaluated to identify a respiratory pattern relative to the inspiratory phase or the expiratory phase to represent pulmonary performance.
232 Citations
29 Claims
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1. A system for assessing pulmonary performance through transthoracic impedance monitoring, comprising:
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an implantable medical device to directly collect transthoracic impedance measures; a correlation component to correlate the transthoracic impedance measures to pulmonary functional measures relative to performance of at least one respiration cycle and to group the transthoracic impedance measures into at least one measures set corresponding to one of an inspiratory phase and an expiratory phase; and an analysis component to evaluate the pulmonary functional measures which were determined from the at least one transthoracic impedance measures set to identify a respiratory pattern relative to the inspiratory phase or the expiratory phase to represent pulmonary performance, comprising; a trending subcomponent to evaluate a trend in changes in the respiratory pattern relative to at least one previous respiratory pattern; a monitoring subcomponent to monitor the trend and the changes; and an alert subcomponent to compare the trends to thresholds and to generate an alert upon sufficient deviation from the thresholds. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for assessing pulmonary performance through transthoracic impedance monitoring, comprising:
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directly collecting transthoracic impedance measures through an implantable medical device; correlating the transthoracic impedance measures to pulmonary functional measures relative to performance of at least one respiration cycle; grouping the transthoracic impedance measures into at least one measures set corresponding to one of an inspiratory phase and an expiratory phase; and evaluating the pulmonary functional measures which were determined from the at least one transthoracic impedance measures set to identify a respiratory pattern relative to the inspiratory phase or the expiratory phase to represent pulmonary performance, comprising; evaluating a trend in changes in the respiratory pattern relative to at least one previous respiratory pattern; monitoring the trend and the changes; comparing the trends to thresholds; and generating an alert upon sufficient deviation from the thresholds. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. An apparatus for assessing pulmonary performance through transthoracic impedance monitoring, comprising:
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means for directly collecting transthoracic impedance measures through an implantable medical device; means for correlating the transthoracic impedance measures to pulmonary functional measures relative to performance of at least one respiration cycle; means for grouping the transthoracic impedance measures into at least one measures set corresponding to one of an inspiratory phase and an expiratory phase; and means for evaluating the pulmonary functional measures which were determined from the at least one transthoracic impedance measures set to identify a respiratory pattern relative to the inspiratory phase or the expiratory phase to represent pulmonary performance, comprising; means for evaluating a trend in changes in the respiratory pattern relative to at least one previous respiratory pattern; means for monitoring the trend and the changes; means for comparing the trends to thresholds; and means for generating an alert upon sufficient deviation from the thresholds.
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Specification