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Triage of Reduced Exercise Tolerance in Frail Elderly (TREE).


- candidate number8084
- NTR NumberNTR2336
- ISRCTNISRCTN wordt niet meer aangevraagd.
- Date ISRCTN created
- date ISRCTN requested
- Date Registered NTR25-mei-2010
- Secondary IDs311040302 ZonMW
- Public TitleTriage of Reduced Exercise Tolerance in Frail Elderly (TREE).
- Scientific TitleTriage of Reduced Exercise Tolerance in Frail Elderly.
- ACRONYMTREE
- hypothesisThe diagnostic triage will be a simple and feasible way to improve the diagnosis and treatment of frail elderly with exercise induced dyspnoea and/or reduced excersie tolerance.
- Healt Condition(s) or Problem(s) studiedHeart failure, COPD
- Inclusion criteria1. Patients aged 65 years and older;
2. Must have a minimum of three chronic or vitality threatening diseases and/or use five or more medical drugs chronically in the last year;
3. Must have dyspnea and/or reduced exercise tolerance (scored by two short questionnaires).
- Exclusion criteria1. Patients with both confirmed COPD and heart failure (lungfunction test performed < 1 year ago and heart failure confirmed by echocardiography);
2. Patients unable or unwilling to sign informed consent.
- mec approval receivedyes
- multicenter trialno
- randomisedyes
- masking/blindingNone
- controlActive
- groupParallel
- Type2 or more arms, randomized
- Studytypeintervention
- planned startdate 1-jun-2010
- planned closingdate1-mrt-2013
- Target number of participants800
- Interventions1. Diagnostic triage strategy (index group) including; electrocardiography, echocardiography, spirmetry and blood testing;
2. Care-as-usual (control group).
- Primary outcome1. Prevalence of latent heart failure and COPD;
2. Difference in prevalence of latent heart failure and COPD between both groups.
- Secondary outcome(Cost-)effectiveness of the diagnostic triage strategy.
- TimepointsPrimary outcomes will be meassured at one time point. Secudary outcomes will be meassured in two time points (in the beginning of the study and after six months).
- Trial web siteN/A
- statusopen: patient inclusion
- CONTACT FOR PUBLIC QUERIES Y. Mourik, van
- CONTACT for SCIENTIFIC QUERIES F.H. Rutten
- Sponsor/Initiator University Medical Center Utrecht (UMCU)
- Funding
(Source(s) of Monetary or Material Support)
ZON-MW, The Netherlands Organization for Health Research and Development
- PublicationsN/A
- Brief summaryBackground of the study:
Many elderly suffer from reduced exercise tolerance or exercise induced shortness of breath (dyspnoea) which causes decreased mobility and restrictions in physical, psychological and social functioning. Patients commonly attribute this symptom to their age, and simply adjust their life style to it. Reduced exercise tolerance/dyspnoe is very common with prevelance rate of 20-60% of those aged 65 years and over. The main causus in the elderly are heart failure and chronic obstructive pulmonary disease (COPD). Both diseases have a high negative impact on the quality of life and are associated with frequent hospital admissions. Over-diagnosis, but more often under-diagnosis of heart failure and COPD is rather common in primary care. Establishing a diagnosis early in the course of the disease is useful because both diseases can be adequately and evidence-based treated. Therefore, an easy diagnostic triage-strategy followed bij direct treatment would be of great importance to asses and treat heart failure and COPD in elderly patient with shortness of breath.

Objective of the study:
Quantify how many frail elderly aged over 65 years with reduced exercise tolerance and/or exercise induced dyspnoea have previously unrecognised COPD and heart failure. Quantify the difference in prevalence of unrecognised COPD and heart failure between those who underwent the diagnostic triage compared to those who received care as usual. Quantify the effect of the diagnostic triage plus the additionally treatment changes on functionality and quality of life after 6 months compared to those who received care as usual. Quantify the cost-effectiveness of the diagnostic triage strategy compared to care as usual.

Study design:
A clustered randomized diagnostic (follow-up) study.

Study population:
First, pre-selection of patients aged over 65 years from 50 general practices is based on frailty. Frailty is based on the next criteria: use 5 or more different types of medical drugs chronically in the last year and/or have 3 or more chronic or vitality threating diseases (such as diabetes mellitus, COPD, heart failure, impaired vision, hard hearingness). This will be done from the electronic medical files of the general practices. These elderly will receive the MRC questionnaire of dyspnoea and three additional questions related tot exercise intolerance. Those with any dyspnoea and/or reduced exercise tolerance will be invited to participate, except those with established heart failure and COPD.

Study parameters/outcome of the study:
Prevalence of latent heart failure and COPD. Difference in prevalence of latent heart failure and COPD between both groups. Differences in functionality and quality of life after 6 months between both groups. Cost-effectiveness and experienced patient burden of the diagnostic triage strategy.
- Main changes (audit trail)
- RECORD25-mei-2010 - 10-jun-2010


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