nonfunctional evaluation in pulmonary rehabilitation
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Nonfunctional Evaluation In Pulmonary Rehabilitation. Tudor Toma, MD. PhD. Homerton University Hospital London, UK. Pulmonary Rehabilitation. Aims: To reduce symptoms Reduce disability Reduce handicap Improve quality of life. Why Non Functional Evaluation?. - PowerPoint PPT PresentationTRANSCRIPT
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Nonfunctional Evaluation InPulmonary Rehabilitation
Nonfunctional Evaluation InPulmonary Rehabilitation
Tudor Toma, MD. PhD.
Homerton University Hospital
London, UK
Tudor Toma, MD. PhD.
Homerton University Hospital
London, UK
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Pulmonary RehabilitationPulmonary Rehabilitation
Aims:
• To reduce symptoms
• Reduce disability
• Reduce handicap
• Improve quality of life
Aims:
• To reduce symptoms
• Reduce disability
• Reduce handicap
• Improve quality of life
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Why Non Functional Evaluation?Why Non Functional Evaluation?
Poor association between pulmonary function and symptoms.
Poor association between pulmonary function and symptoms.
Mahler DA et al. Dyspnoea. NY, Futura Publishing Company, Inc. 1990
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Minimal Outcomes For Evaluation*Minimal Outcomes For Evaluation*
• Dyspnoea
• Exercise ability
• Health status
• Activity level
• Dyspnoea
• Exercise ability
• Health status
• Activity level
* According to ATS & BTS statements on pulmonary rehabilitation
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Other areas for evaluationOther areas for evaluation
• Dysfunction of peripheral and respiratory muscles.
• Anxiety and depression.
• Abnormalities of nutrition and body composition.
• Dysfunction of peripheral and respiratory muscles.
• Anxiety and depression.
• Abnormalities of nutrition and body composition.
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DyspnoeaDyspnoea
During daily activities.• Medical Research Council (MRC) dyspnoea questionnaire.• The Baseline and Transitional Dyspnoea Indexes (BDI and
TDI).• The dyspnoea component of the Chronic Respiratory
Disease Questionnaire.• The University of California San Diego Shortness of
Breath Questionnaire (UCSD-SOBQ).• The Pulmonary Functional Status and Dyspnoea
Questionnaire (PFSDQ).
During daily activities.• Medical Research Council (MRC) dyspnoea questionnaire.• The Baseline and Transitional Dyspnoea Indexes (BDI and
TDI).• The dyspnoea component of the Chronic Respiratory
Disease Questionnaire.• The University of California San Diego Shortness of
Breath Questionnaire (UCSD-SOBQ).• The Pulmonary Functional Status and Dyspnoea
Questionnaire (PFSDQ).
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Medical Research Council Dyspnoea Scale
Medical Research Council Dyspnoea Scale
1. Not troubled by breathlessness except on strenuous exercise
2. Short of breath when hurrying or walking up a slight hill3. Walks slower than contemporaries on the level because of
breathlessness, or has to stop for breath when walking at own pace
4. Stops for breath after about 100 m or after a few minutes on the level
5. Too breathless to leave the house, or breathless when dressing or undressing
1. Not troubled by breathlessness except on strenuous exercise
2. Short of breath when hurrying or walking up a slight hill3. Walks slower than contemporaries on the level because of
breathlessness, or has to stop for breath when walking at own pace
4. Stops for breath after about 100 m or after a few minutes on the level
5. Too breathless to leave the house, or breathless when dressing or undressing
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DyspnoeaDyspnoea
Baseline Dyspnoea Index (BDI)
• 0-4 with a focal score which is the sum from:– Functional impairment
– Magnitude of task
– Magnitude of effort
Baseline Dyspnoea Index (BDI)
• 0-4 with a focal score which is the sum from:– Functional impairment
– Magnitude of task
– Magnitude of effort
Transitional Dyspnoea Indexes (TDI)
• Changes from -3 to 3.• Responds to therapeutic
interventions.
Transitional Dyspnoea Indexes (TDI)
• Changes from -3 to 3.• Responds to therapeutic
interventions.
Mahler DA et al. The measurement of dyspnoea: contents, interobserver agreement and physiologic correlations of two new clinical indexes. Chest 1984; 85:751-758
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Ries, A. L. et. al. Ann Intern Med 1995;122:823-832
DyspnoeaDyspnoea
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DyspnoeaDyspnoea
• Correlation between measurements tools.• Correlation between measurements tools.
de Torres et al. Chest, 121 (4): 1092. (2002)
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DyspnoeaDyspnoea
Ethnic differences?Ethnic differences?
Grace E. Hardie et al. Word Descriptors Used by African-American and White Asthma Patients During Induced Bronchoconstriction. Chest 2000;117;935-943
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DisabilityDisability
The difficulty for someone to do the things that other people do.
Measured by:
• Treadmill or cycle ergometer exercise test.
• Six minute walk test.
• Shuttle walking test.
The difficulty for someone to do the things that other people do.
Measured by:
• Treadmill or cycle ergometer exercise test.
• Six minute walk test.
• Shuttle walking test.
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DisabilityDisability
Six minute walk test: patients are instructed to walk as far as possible in a corridor or large room at his/her own pace for 6 minutes.– 54 m = clinical significant change.– Biases: practice effect and encouragement.
Strict standardization is essential.
Six minute walk test: patients are instructed to walk as far as possible in a corridor or large room at his/her own pace for 6 minutes.– 54 m = clinical significant change.– Biases: practice effect and encouragement.
Strict standardization is essential.
Steele B. Timed walking test of exercise capacity in chronic cardiopulmonary disease. J Card-pulm Rehabil 1996; 16:25-33
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DisabilityDisability
Six minute walk testSix minute walk test
Ries AL et al. The Effects of Pulmonary Rehabilitation in the National Emphysema Treatment Trial. Chest 2005, 128:3799-3809.
0
5
10
15
20
25
30
35
Total Prior PR No prior PR
Post-Pre (m)
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Health StatusHealth Status
Quality of life• The gap between desires in life and
achievements.
Health status (Health related quality of life)• Quantification of the impact of disease on
daily life and well being in a formal and standardized manner.
Quality of life• The gap between desires in life and
achievements.
Health status (Health related quality of life)• Quantification of the impact of disease on
daily life and well being in a formal and standardized manner.
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Health StatusHealth Status
1. Utility scales:a. Quality of well being scale
b. Sickness Impact Profile
c. Medical Outcomes Study Short Form (SF-36)
2. Disease specific scales:a. St George’s Respiratory Questionnaire
b. Chronic Respiratory Disease Questionnaire
1. Utility scales:a. Quality of well being scale
b. Sickness Impact Profile
c. Medical Outcomes Study Short Form (SF-36)
2. Disease specific scales:a. St George’s Respiratory Questionnaire
b. Chronic Respiratory Disease Questionnaire
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Health StatusHealth Status
St George’s Respiratory Questionnaire• Symptoms: distress due to respiratory
symptoms.• Activity: disturbance of physical activity.• Impacts: overall impact on daily life and well
being.
St George’s Respiratory Questionnaire• Symptoms: distress due to respiratory
symptoms.• Activity: disturbance of physical activity.• Impacts: overall impact on daily life and well
being.
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Health StatusHealth Status
Jones PW et al. A self-complete measure for chronic airflow limitation –the St George’s Respiratory Questionnaire. Am Rev Respir Dis 1992; 145:1321-27.
SGRQ: aggregates changes.SGRQ: aggregates changes.
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Health StatusHealth Status
Modified after Griffiths TL et al. Results at 1 year of outpatient multidisciplinary pulmonary rehabilitation: a randomised controlled trial. Lancet 2000 Jan 29;355(9201):362-8
SGRQ: after PRSGRQ: after PR
Baseline 6 weeks 1 year
0
25
50
75
100ControlRehab
SG
RQ
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Health StatusHealth Status
Troosters T et al. Pulmonary Rehabilitation in Chronic Obstructive Pulmonary Disease. Am J Respir Crit Care Med. 2005 Jul 1;172(1):19-38.
Improvements exceed the minimal clinical important difference.Improvements exceed the minimal clinical important difference.
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Activity LevelActivity Level
Abilities to perform activities of daily living.
Components:• Capacity: what the patient can do.
• Performance: what the patient does.
• Reserve: the difference between capacity and performance.
• Capacity utilization: how often performance = capacity.
Abilities to perform activities of daily living.
Components:• Capacity: what the patient can do.
• Performance: what the patient does.
• Reserve: the difference between capacity and performance.
• Capacity utilization: how often performance = capacity.
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Activity LevelActivity Level
Pulmonary Functional Status Scale (PFSS):• 56 item, self-administered, 15 min.• Domains of:
– Functional activity– Dyspnoea– Psychological status
Pulmonary Functional Status Scale (PFSS):• 56 item, self-administered, 15 min.• Domains of:
– Functional activity– Dyspnoea– Psychological status
Bowen JB et al. Functional status and survival following pulmonary rehabilitation. Chest. 2000 Sep;118(3):697-703
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BODE IndexBODE Index
Celli BR. Et al. The body-mass index, airflow obstruction, dyspnea, and exercise capacity index in chronic obstructive pulmonary disease. N Engl J Med. 2004 Mar 4;350(10):1005-12.
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Changes in BODE may reflect the effects of PR.Changes in BODE may reflect the effects of PR.
BODE IndexBODE Index
C. G. Cote1 and B. R. Celli. Pulmonary rehabilitation and the BODE index in COPD. Eur Respir J 2005; 26:630-636
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Other Areas For EvaluationOther Areas For Evaluation
Anxiety and depression.• Centers for Epidemiologic Studies Depression
Scale (CES-D).
Nutrition and body composition.• BMI• Fat free mass
– Bioimpedance analysis.– Dual energy x-ray absorptiometry.
Anxiety and depression.• Centers for Epidemiologic Studies Depression
Scale (CES-D).
Nutrition and body composition.• BMI• Fat free mass
– Bioimpedance analysis.– Dual energy x-ray absorptiometry.
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ConclusionsConclusions
• Non functional assessment is required to capture the effect of intervention.
• Enough tests to keep the staff and patient busy for the whole rehab period.
• Simple instruments are available even for a non English speaking population.
• Non functional assessment is required to capture the effect of intervention.
• Enough tests to keep the staff and patient busy for the whole rehab period.
• Simple instruments are available even for a non English speaking population.
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DisabilityDisability
Six minute walk test: no correlation with FEV1Six minute walk test: no correlation with FEV1
Haggerty M et al. The effects of pulmonary rehabilitation on functional status and exercise tollerance. Am J Respir Crit Care Med 1995; 151: A683
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DisabilityDisability
Shuttle Walking Test: patients walk up and down a 10m at gradually increasing speeds as dictated by a beeping signal.– Incremental → exercise capacity and not
endurance.– Self pacing is eliminated.
Shuttle Walking Test: patients walk up and down a 10m at gradually increasing speeds as dictated by a beeping signal.– Incremental → exercise capacity and not
endurance.– Self pacing is eliminated.
Singh SJ et al. Development of a shuttle walking test of disability in patients with chronic airways obstruction. Thorax 1992; 47: 1019-1024.
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Activity LevelActivity Level
Pulmonary Functional Status and Dyspnoea Questionnaire (PFSDQ):
• 164-item, 20 min self administered questionnaire.
• Activities independently rated both for performance and association with dyspnoea.
• Shorter version PFSDQ-M
Pulmonary Functional Status and Dyspnoea Questionnaire (PFSDQ):
• 164-item, 20 min self administered questionnaire.
• Activities independently rated both for performance and association with dyspnoea.
• Shorter version PFSDQ-M
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Health StatusHealth Status
Jones PW et al. A self-complete measure for chronic airflow limitation –the St George’s Respiratory Questionnaire. Am Rev Respir Dis 1992; 145:1321-27.
SGRQ: no strong relationship with spirometrySGRQ: no strong relationship with spirometry
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Other Areas For EvaluationOther Areas For Evaluation
Anxiety and depression.• Centers for Epidemiologic Studies Depression
Scale (CES-D).
Nutrition and body composition.• BMI• Fat free mass
– Bioimpedance analysis.– Dual energy x-ray absorptiometry.
Anxiety and depression.• Centers for Epidemiologic Studies Depression
Scale (CES-D).
Nutrition and body composition.• BMI• Fat free mass
– Bioimpedance analysis.– Dual energy x-ray absorptiometry.