Patent ID: 8417325
Filing Date: 2013-04-09
Classification: A61B,A61N,G16H

Abstract:
1. A system comprising: a sensor signal processor configured to receive a plurality of electrical sensor signals produced by a plurality of sensors and at least one sensor signal produced by an implantable sensor; a memory, including information indicating a co-morbidity of a subject; a sensor signal selection circuit, in electrical communication with the sensor signal processor, configured to select a sensor signal to monitor from among the plurality of sensor signals, according to an indicated co-morbidity; a threshold adjustment circuit configured to adjust a detection threshold of the selected sensor signal according to the indicated co-morbidity, wherein the threshold adjustment circuit includes a weighting circuit configured to change a weighting that a selected sensor signal is accorded in a HF event determination based on the indicated co-morbidity; and a decision circuit configured to apply the adjusted detection threshold to the selected sensor signal to determine whether an event associated with worsening heart failure (HF) occurred in the subject, and to output an indication of whether the event associated with worsening HF occurred to a user or process.