Telemedicine and Homecare - Aalborg Universitet · • In Denmark 50.000 patients are in AC...
Transcript of Telemedicine and Homecare - Aalborg Universitet · • In Denmark 50.000 patients are in AC...
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Telemedicine and Homecare
Ole Hejlesen
Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
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Various terms with overlapping meanings
• Self-Care, • Self-Management, • Telemedicine, • Home Monitoring, • Home Care, • Pervasive Healthcare,• ……• “the practice of health care at a distance” – ??
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Various actors in various combinations
• Patients, • General practitioners, • District nurses, • Private specialists,• Various hospital clinicians, • ……
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Various degrees of online contact
• One end of the scale: A patient who, after being discharged hospital, has no significant communication with the clinician
• The other end of the scale:A patient who, for example, is discharged with a device which, using a mobile telephone, transfers the patient’s ECG to the hospital for continuous monitoring
• The communication can be one-way – or two-way
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Various degrees of devolution of responsibility
• One end of the scale:For example, the situation where the patient is monitoring the ECG and where the patient is not supposed to make any decisions regarding the treatment
• The other end of the scale:For example, the trained diabetes patient, who in accordance with varying meals etc. has full responsibility of taking the right insulin doses
• May be aided by a decision support system
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Framework for classification
Online contact
Devolution of responsibility
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- various actors in various combinations
• Hospital clinician – patient at home• GP – patient at home• Hospital specialist – GP• Hospital specialist – Hospital clinician• ……
Devolution of responsibility
Devolution of responsibility
Devolution of responsibility
Online contact
Online contact
Online contact
Online contact
Devolution of responsibility
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Hospital clinician – patient at homean inverse correlation ??
ECGmonitoring
Online contact trained
diabetic
Devolution of responsibility
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Example no. 1 – anticoagulation
• In Denmark 50.000 patients are in AC treatment, the number increasing 10-15% per year
• AC treatment is an effective prophylaxis for thromboembolism in high risk patients (e.g. cardiac patients with atrial fibrillation)
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Number Needed to Treat (NNT)* in Various Cardiac Conditions
Abs. NNTred.
AF, primary prevention 5% > 2% 3% 33.3
AF, secondary prevention 12% > 4% 8% 12.5
post AMI 2.4% > 1.1% 1.3% 77
* NNT Definition: No. of pt.s to treat to avoid one event of Intracranial Hemorrhage : 1/abs. reduction %
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Risk of Intracranial Hemorrhage in Outpatients
Adapted from: Adapted from: HylekHylek EM, Singer DE, Ann Int Med 1994;120:897EM, Singer DE, Ann Int Med 1994;120:897--902902
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Lowest Effective Intensity for Warfarin Therapy for Stroke Prevention in AF
Hylek EM, et al. NEJM 1996;335:540-546.HylekHylek EM, et al. NEJM 1996;335:540EM, et al. NEJM 1996;335:540--546.546.
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Low degree of online contact – and high degree of devolution of responsibility
• Aahus University Hospital the first place in Denmark to introduce formal training ofpatients in AC treatment -> ’The Skejby Way’
• Patient self-management• A paper based communication structure• Data manually entered into a database
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High degree of online contact – and low degree of devolution of responsibility
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Hospital clinician – patient at homean inverse correlation ??
SimpleSimon
DSS +training
Online contact The Skejby
Way
Devolution of responsibility
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The Hillingdon algorithm• M = 1 + 0,58 * ln (T / A).
– M is dose-ratio – actual / previous– T is target INR– A is actual INR
• Modified by Dalsgaard:• M = 1 + (0,4 + (1 / (D + 5)) * ln (T / A )
– D is number of days between INR values
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The INR risk function in a DSS
Risk
INR
1 2 3 4 5 6
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Example no. 2 – diabetes home care
DiasNet/MAGNET
Online contact DiasNet
Devolution of responsibility
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DiasNet
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Blood glucose prediction generated by DiasNet
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Effect of changing meals or insulin
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The BG risk function in DiasNet
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DiasNet /MAGNET
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Example no. 3 – diabetic retinopathy Hospital specialist – Hospital clinician
Online contact
TOSCA
Std. ophth.service
Devolution of responsibility
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TOSCA communication structure
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Example no. 4 – lyme borreliosis diagnosis Hospital specialist – General practitioner
Online contact
Borrelia DSS
Std. microbiol.service
Devolution of responsibility
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The most common tick-borne infection
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Clinical findings & lab evidence
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A web based DSS for the GP
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Various terms with overlapping meanings – which one to use?
• Self-Care, • Self-Management, • Telemedicine, • Home Monitoring, • Home Care, • Pervasive Healthcare,• ……• “the practice of health care at a distance” – ??
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Various terms with overlapping meanings – which one to use?
‘The Google Way’
• Self-Care / Selfcare – 1 450 000 hits• Self-Management / Selfmanagement – 840 000 hits• Telemedicine / Tele medicine – 3 550 000 hits• Home Monitoring – 157 000 hits• Home Care / Homecare – 5 200 000 hits• Pervasive Healthcare / Health Care – 5 000 hits