Disease management system for chf patients
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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

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Disease Management System for CHF Patients

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Disease management system for chf patients

Care @ Distance

Disease Management System forCHF 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

Inger Ekman, Associate Professor,Sahlgrenska Akademin, Gothenburg University


Overview

Overview

  • Introduction

  • Purpose of IT-based home care

  • System overview

  • Pre-trial

  • Current work

  • Future plans


Introduction

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

IntroductionPurpose of IT-based home care System overview Pre-trial Current work Future plans


Purpose of it based home care

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 careSystem overview Pre-trial Current work Future plans


Disease management system for chf patients

Patient’s Family

Network

Patient

Patient

Care giver

Database

Introduction Purpose of IT-based home care System overview Pre-trial Current work Future plans


System overview

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


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

Home Client

Introduction Purpose of IT-based home care System overview Pre-trial Current work Future plans


Web portal

Accessible via webbrowser

Examine patient data

Administrate:

Patient data

Equipment

Questionnaires

Create measurement schedules

Web Portal

Introduction Purpose of IT-based home care System overview Pre-trial Current work Future plans


Pre trial

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


Results

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


Results cont

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


Current work

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


Future plans

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 improvements

Introduction Purpose of IT-based home care System overview Pre-trial Current work Future plans


Thank you

Thank you!


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