In this blog, we shortly present the reflections which lead to the selection of a suitable sensor system for the MedGUIDE solution. The first selection criteria is, which data is required in order to identify medication side-effects. The table below shows a list of common side-effect in dementia drugs as well as behavior based measurable changes or side-effects.
|Medication side effect||Measurable behavior change of side effect|
|Nausea, vomiting, diarrhoea||Increased number and duration of toilet usage|
|Loss of appetite||Reduced fridge usage, reduced time spent in kitchen at meal times|
|Muscle pain||Reduced mobility indoors, longer time spent in bed, less outgoing behaviour|
|Sleep problems||Increased bed exits during night, interrupted sleep, reduced global sleep quantity|
|Feeling tired||Increased daytime sleeping in bed, decreased mobility indoor|
|Headaches||Increased daytime sleeping in bed, decreased mobility indoor|
|Dizziness and feeling faint||Increased time staying in bed, decreased mobility indoor|
Based on these considerations, the following broad activities of daily living (ADL) were chosen to be able to detect the above changes, and corresponding medication side-effects.
|Sleeping||Time spent asleep, including day-time naps|
|Total hygiene||Time spent using the bathroom and toilet|
|Community mobility||Time spent outside the home, for instance visiting a day care center|
|Feeding||Events of food intake|
|Functional mobility||Indoor mobility and activity|
This list of activities of daily living lead to the selection of a sensor network composed only of ambient sensors, requiring no interaction or wearing. The chosen system is provided by the Swiss company DomoSafety SA (www.domo-safety.com), which is recognized as a leader in the in-home behavior analysis, focusing on elderly care. The MedGUIDE consortium technical partners integrated this sensor system and test-drove it with success in three pilots.