Disease Management System for CHF Patients
14
Department of Signals and Systems Disease Management System for CHF Patients Bengt Arne Sjöqvist, Adj. Professor, Chalmers University of Technology Kaj Lindecrantz, Professor, Borås University College, Borås, Sweden Inger Ekman, Associate Professor, Sahlgrenska Akademin, Gothenburg University Care @ Distance Anna Gund PhD Student, Chalmers University of Technology Gothenburg, Sweden
description
Care @ Distance. Disease Management System for CHF Patients. Anna Gund PhD Student, Chalmers University of Technology Gothenburg, Sweden. Bengt Arne Sjöqvist, Adj. Professor, Chalmers University of Technology Kaj Lindecrantz, Professor, Borås University College, Borås, Sweden - PowerPoint PPT Presentation
Transcript of Disease Management System for CHF Patients
Department of Signals and Systems
Disease Management System forCHF Patients
Bengt Arne Sjöqvist, Adj. Professor, Chalmers University of TechnologyKaj Lindecrantz, Professor, Borås University College, Borås, Sweden
Inger Ekman, Associate Professor, Sahlgrenska Akademin, Gothenburg University
Care @ Distance
Anna GundPhD Student, Chalmers University of Technology
Gothenburg, Sweden
Department of Signals and Systems
Overview
• Introduction• Purpose of IT-based home care• System overview• Pre-trial• Current work• Future plans
Department of Signals and Systems
Introduction
• Congestive Heart Failure– 2% of western population– Most over 60 years of age– Chronic health disorder
• Amount of elderly increasing• Growing expenses• Shrinking resources
Introduction Purpose of IT-based home care System overview Pre-trial Current work Future plans
Department of Signals and Systems
Purpose of IT-based Home Care
• Improved care:– Improved treatment compliance– Better basic data for health related decision-
making– Faster detection of deteriorating health– Easier to see effects of new/changed medication– Patient can stay home for longer periods of time
• Cost Efficient:– Fewer/shorter hospital visits– Fewer acute situations
Introduction Purpose of IT-based home care System overview Pre-trial Current work Future plans
Department of Signals and Systems
Database
Network
Care giver
Patient
Patient’s Family
Patient
Introduction Purpose of IT-based home care System overview Pre-trial Current work Future plans
Department of Signals and Systems
System Overview
• Home client– Placed at patient’s home– Computer with installed software– Physiological sensor equipment
• Web portal– For care givers as well as patient with family– Accessible through internet browser
• Infrastructure– Broadband connection (UMTS)– (Bluetooth between sensor and home client)
Introduction Purpose of IT-based home care System overview Pre-trial Current work Future plans
Department of Signals and Systems
Home Client• Home equipment
– Easy to use– Small intrusion on daily life
• Measurements– Once or several times per day– Body weight– Blood pressure– Pulse– (Electric Bio-Impedance)
• Subjective questions– Fatigue – Dyspnoea
Introduction Purpose of IT-based home care System overview Pre-trial Current work Future plans
Department of Signals and Systems
Web Portal
• Accessible via webbrowser
• Examine patient data• Administrate:
– Patient data– Equipment– Questionnaires
• Create measurement schedules
Introduction Purpose of IT-based home care System overview Pre-trial Current work Future plans
Department of Signals and Systems
Pre-trial• Performed at Östra Hospital, Gothenburg Sweden, spring
2007• Two parts: evaluation of home client and web portal• Home Client
– Objective: evaluation of usability and design– 10 patients, ages 62-87, 4 female 6 male, none to average
computer experience– Tried system once in connection with appointment– Evaluation through observations and questionnaire
• Web portal– Objective: re-design of web portal– Paper prototype– 3 nurses at Östra Hospital– Evaluated through interviews
Introduction Purpose of IT-based home care System overview Pre-trial Current work Future plans
Department of Signals and Systems
Results• Home client
– 8 out of 10 (80%) found the system easy or very easy to use, 2 out of 10 (20%) found the system hard to use
– 6 out of 10 (60%) had difficulties pressing the touch sensitive screen
– 5 out of 10 (50%) had some difficulties with numeric keyboard
– Most problems can most likely be solved with better instructions
– All patients could consider using the system on a daily basis
– Larger and longer trials necessary
Introduction Purpose of IT-based home care System overview Pre-trial Current work Future plans
Department of Signals and Systems
Results cont’
• Web portal– 2 out of 3 found the system intuitively easy to use,
the third thought if would take some time getting used to
– Many comments of details of the pages, such as names on buttons and which information should be entered
– Greatest concern not of usability of system, but of amount of information to be handled
– More tests needed to evaluate over longer periods of time
Introduction Purpose of IT-based home care System overview Pre-trial Current work Future plans
Department of Signals and Systems
Current Work• System verification
– “De-bugging” using healthy volunteers• Preparations for longer trials in home
environment– ~3 patients– 1-3 months
• Improvements on current home client– Web based system, master thesis recently
started• Development of new Web Portal
Introduction Purpose of IT-based home care System overview Pre-trial Current work Future plans
Department of Signals and Systems
Future Plans• Apply EBI (Electric Bio-Impedance)
– ECG– Oedema– Respiration– Etc.
• Develop new sensor techniques– Necessary in order to use EBI in home care
applications– User friendly– Non-invasive, pain free– Wearable electronics / Smart textiles
• More tests and improvementsIntroduction Purpose of IT-based home care System overview Pre-trial Current work Future
plans
Department of Signals and Systems
Thank you!
