marlene bagatto - phonakpro · pdf filevanier canada graduate scholarship to marlene bagatto...
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Marlene Bagatto The University of Western Ontario, London, Canada
European Pediatric Amplification Conference
Istanbul, Turkey
November 15, 2011
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Acknowledgements Funding Sources:
Canadian Institutes of Health Research Vanier Canada Graduate Scholarship to Marlene Bagatto 220811CGV-
204713-174463
Frederick Banting and Charles Best Canada Graduate Scholarship to Sheila Moodie 200710CGD-188113-171346
Ontario Research Fund, Early Researcher Award to Susan Scollie
Collaborators:
Ontario Ministry of Children and Youth Services Infant Hearing Program
Richard Seewald, Doreen Bartlett, Linda Miller, Anita Kothari
Martyn Hyde
April Malandrino, Christine Brown, Frances Richert, Debbie Clench
Kelley Keene and Mary Powell
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Acknowledgements Network of Pediatric Audiologists of Canada (Sheila Moodie):
Children’s Hospital of Eastern Ontario, Ottawa, ON H.A. Leeper Speech & Hearing Clinic, University of Western Ontario,
London, ON Ear & Hearing Clinic, Kitchener, ON Glenrose Rehabilitation Hospital, Edmonton, AB Hospital for Sick Children, Toronto, ON Hamilton Health Sciences, Audiology, Hamilton, ON Vancouver Coastal Health, Vancouver Community Audiology Centre,
Vancouver, BC Montreal Children’s Hospital - McGill University Health Centre,
Montreal, QC Fraser Health Authority, Langley Public Health, Langley, BC Nova Scotia Hearing & Speech Centres, Halifax/Truro, NS Humber River Regional Hospital, Toronto, ON Deer Lodge Hearing Centre, Winnipeg, MB Central Speech and Hearing Clinic, Winnipeg, MB
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HEARING AIDVERIFICATION
ELECTROACOUSTICPRESCRIPTION
AUDIOMETRICASSESSMENT
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EVALUATION OFAUDITORY
PERFORMANCE
HEARING AIDVERIFICATION
ELECTROACOUSTICPRESCRIPTION
AUDIOMETRICASSESSMENT
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OUTCOME EVALUATION
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EVALUATION OFAUDITORY
PERFORMANCE
HEARING AIDVERIFICATION
ELECTROACOUSTICPRESCRIPTION
AUDIOMETRICASSESSMENT
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Version 1.0
Marlene Bagatto, Sheila Moodie, Susan Scollie
2010
Version 1.0
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Target Population: Infants & young
children who wear hearing aids
Considerations for Outcome Evaluation
Good Statistical Properties
Purpose: Measure the impact of the hearing aid fitting
Clinically Feasible
Administration & Interpretation: By
Audiologist
Clinically Meaningful
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Community of Practice (Sheila Moodie)
Soliciting opinions and experiences from end-users is recommended when developing outcome evaluation tools and clinical practice guidelines (Graham et al, 2000; Andresen, 2000)
Network of Pediatric Audiologists of Canada Opinions were gathered regarding clinical relevance,
quality, feasibility, utility, executability, acceptability, and comparative value of each tool
Modifications made where possible
Provided information about barriers and facilitators to implementation
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Creating a Balance (modified from Bhattacharyya, O. 2010)
ACTIONABLE EVIDENCE-BASED
Clear
Specific
Complex
Rigid
CLINICAL UPTAKE
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UWO PedAMP Development Avoid tools that:
are too lengthy or complicated rely on information or scoring by other professionals (e.g., standard language measures)
May be implemented in other parts of the Early Hearing Detection and Intervention (EHDI) program
Include tools that: have good statistical properties have good clinical feasibility and utility support family-centered practice help you collaborate better with others
Maximize efficiency and interpretation through:
Visual tools to permit rapid scoring Data to support interpretation
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Purpose of the UWO PedAMP Intended to be used with children with permanent
childhood hearing impairment (PCHI) from birth to 6 years who may or may not wear hearing aids
Consists of several outcome evaluation tools that aim to measure auditory-related outcomes in infants and young children including the following dimensions:
Subjective assessment of early auditory development
Subjective ratings of auditory performance in daily life
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Contents of the UWO PedAMP Ontario Infant Hearing Program (OIHP) Amplification
Benefit Questionnaire
Hearing Aid Fitting Summary
Aided Speech Intelligibility Index (SII) Normative Values
LittlEARS Auditory Questionnaire (Tsiakpini et al, 2004)
Parent’s Evaluation of Aural/Oral Performance of Children (PEACH) (Ching & Hill, 2005)
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Initial Assessment
Prefitting Initial Fitting
30 Day Recheck
3 month Recheck
6 month Recheck
Yearly
Rechecks
Event Driven
Hearing Aid Fitting Details
× × ×
IHP Hearing Aid Benefit × × × ×
LittlEARS
Establish Unaided Baseline: Administer at one of these
appointments
If score ≥27,
stop LittlEARS,
use PEACH.
If score ≥27,
stop LittlEARS,
use PEACH.
If score ≥27,
stop LittlEARS,
use PEACH.
If score ≥27,
stop LittlEARS,
use PEACH.
PEACH × × ×
Appointment Type (Aided)
Ou
tco
me
Eva
luat
ion
To
ol
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OIHP Amplification Benefit Questionnaire
11-item questionnaire jointly developed by the OIHP and Child Amplification Laboratory at UWO
5-point rating scale for parents addressing: Acceptance and use of hearing aids
Auditory performance for different levels of sound
Effectiveness of service delivery
Overall satisfaction
Final question is open-ended asking about how hearing aid services could be improved
Where to find: www.dslio.com
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Clinical Process Outcomes
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Reasons for Tracking Hearing Aid Fitting Details
Good auditory-related outcomes infer good audibility from hearing aids
Important part of outcome evaluation guideline
Clinician can determine whether individual child’s fitting is providing a typical degree of audibility
Provides overall reporting information for the Early Hearing Detection and Intervention (EHDI) program as a whole
Programs need measurable outcomes
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Hearing Aid Fitting Details
Real-Ear-to-Coupler Difference (RECD)
Maximum Power Output (MPO)
Speech Intelligibility Index (SII)
Soft = 55 dB SPL
Average = 65 dB SPL
•Proportion of speech above threshold •Percentage value •Not a speech recognition score
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Aided SII Normative Data
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SII
(%
, 6
5 d
B S
PL
Sp
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ch
)
Pure Tone Average (dB HL)
Average Speech Input (65 dB SPL)
Data courtesy of S.T. Moodie and
Clinician Network
This is the typical fit to targets zone.
This is the under targets
zone.
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Clinical Process Outcomes
• RECD
• MPO
• SII
Functional Outcomes
• LittlEARS
• PEACH
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http://www.earfoundation.org.uk/shop/items/98
Other languages direct from MED-EL. Tel: +44 (0) 1226 242 874
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LittlEARS (Tsiakpini et al, 2004)
Goal: to assess auditory development during first 2 years of hearing
Receptive auditory behaviour
Semantic auditory behaviour
Expressive vocal behaviour
Format: 35 yes/no questions listed in developmental order
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LittlEARS Scoring: All ‘yes’ answers are added and compared to
average and minimum values
Normative data collected with 218 German-speaking families (Weichbold et al, 2005)
Reliable
Good internal consistency
Good discriminative ability
Good correlation of overall score and age of child
Validated in 15 languages (Coninx, et al, 2009)
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Bagatto, Brown, Moodie & Scollie, 2011
International Journal of Pediatric Otorhinolaryngology
Volume 75(6): 815-7
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Longitudinal Intervention Study
* Clinicians followed OIHP hearing aid fitting protocol (Bagatto et al, 2010)
Total Sample = 352
Mean age = 21.7 months
Range = 1.3 – 107.1 months
Normal Hearing
= 223
Hearing Loss
= 129
Aided*= 68 Unaided = 61
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Tota
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Age (months)
Analysis 1) Validation: Normal Hearing Children
German Norms Canadian Norms Canadian Raw Data: Typically Developing, ≤ 24 months of age
Quadratic Regression Curves German Norm Curve: N = 218 Canadian Norm Curve: N = 130
Mean age = 8.11 months Age range = 2 to 23 months Standard Deviation = 4.93 Mean score = 18 Score range = 3 to 35 Standard Deviation = 7.83
r = 0.993
Bagatto et al, 2011 Int J Ped Otorhinolaryn
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Results 1) Validation: Normal Hearing Children
German Norms: Average Upper 95 % confidence interval Lower 95 % confidence interval Canadian Raw Data: Typically Developing Premature (chronological age) Medical Issues
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Age (months)
Sensitive to Medical Issues
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LittlEARS Score Sheet (Adapted from MED-EL)
Not Meeting Auditory
Development Milestones
Meeting Auditory
Development Milestones
Extended age range
Norms end at 24 months
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Bagatto, Moodie, Malandrino, Richert, Clench & Scollie
In Press
Trends in Amplification
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Children with Hearing Aids
* Clinicians followed OIHP hearing aid fitting protocol (Bagatto et al, 2010)
Aided* = 68
PTA = 48.41 dB HL
Range = 16.67 to 110 dB HL
Typically Developing
= 23 (33.82%)
Comorbidities
= 22 (32.35%)
Complex Factors
= 23 (33.82%)
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Administration of LittlEARS
43 caregivers; 58 times
Mean age = 27.3 months
Range = 6.9 – 72.7 months
Typically Developing
= 12 (27.9%)
Comorbidities
= 17 (39.5%)
Complex Factors
= 14 (32.6%)
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Age (months)
All Profiles: Aided PCHI
Bagatto et al, In press, Trends in Amplification
German-derived norms
Typically Developing
Mild/Mod Comorbidities
Complex Factors
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Summary: LittlEARS Short questionnaire that parents and clinicians find
feasible to complete
Norms developed from normal hearing children work well
Sensitive to medical issues
Require more data to characterize different patient profiles
Useful for monitoring the progression of auditory behaviours in infants and young children
Normal hearing
PCHI but unaided
PCHI and aided LittlEARS Score ≥ 27
PEACH
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Diary: http://www.nal.gov.au/outcome-measures_tab_peach.shtml
Rating Scale:
http://www.outcomes.nal.gov.au/LOCHI%20assessments.html
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PEACH (Ching & Hill, 2005)
Goal: to evaluate effectiveness of device for infants and children with hearing impairment
Format: 13 item questionnaire assesses
hearing aid use
loudness discomfort
communication in quiet and noise
phone use
responsiveness to environmental sounds
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PEACH Rating Scale 5-point rating scale
Includes most of the scenarios from the Diary
Parents think about their child’s behaviour over the past week in relation to each question
Can be done in one appointment
No follow-up interview by clinician necessary
Percentage scoring
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PEACH Scoring No score sheet provided with PEACH, therefore,
needed to develop one from existing literature and preliminary data
Ching et al, 2005, 2008, NAL/DSL Study 2010 Normal hearing children achieve 90% around age 3
years
Hearing impaired children achieve a range Ching et al, 2005 = 62%
Ching et al, 2008 = 66%
NAL/DSL Study = 80%
Ching, Scollie, Dillon, Seewald, et al., 2010
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PEACH Score Sheet Normal hearing children perform here (90%) by 3
yrs (Ching & Hill, 2005).
Typical Performance
Zone
Possible Review
Indicated
Further Review Indicated
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Administration of PEACH
48 caregivers; 75 times
Mean age = 27.3 months
Range = 6.9 – 72.7 months
Typically Developing
= 16 (33.3%)
Comorbidities
= 14 (29.2%)
Complex Factors
= 18 (37.5%)
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Preliminary Data: Aided PCHI
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Overall Quiet Noise
PE
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co
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• 23 Subjects • Typically developing • Mean Age = 46.91 months • Age Range = 20.63 – 78.40
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CH
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Age (months)
y=e4.51 +(-4.66/x)
y=0.03x+81.67
Typically-Developing Children
Bagatto et al, In press, Trends in Amplification
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Summary: PEACH Assesses functional auditory performance in quiet and
noisy situations Can compare to hearing impaired children who wear
hearing aids using score sheet
Can identify whether child is or is not performing typical auditory behaviours
For example: If noise score is poor, can discuss noise options
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UWO PedAMP within an EHDI Program
Implemented with children who may or may not wear hearing aids
Consists of:
OIHP Amplification Benefit Questionnaire (aided only)
Hearing Aid Fitting Summary (aided only)
LittlEARS Auditory Questionnaire
OR
PEACH Rating Scale
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Importance of Outcome Evaluation Patients
Track and monitor Involve parents – result: good observers Shared language
Audiologists Way to measure impact of hearing aid fitting Improve efficiency and effectiveness of service delivery Improve communication with families and professionals
EHDI Measure how program is doing Helps describe patterns that affect children within the
program
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UWO PedAMP
A guideline consisting of several outcome evaluation tools that aim to measure auditory-related outcomes in infants and young children
Visual tools to permit rapid scoring
Preliminary data to support interpretation
The UWO PedAMP will evolve through clinical implementation
Community of practice is important for success
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References Andresen, E. 2000. Criteria for assessing the tools of disability outcomes research, Arch Phys Med
Rehabil, 81, Suppl. 2, S15-S20.
Bagatto, M, Scollie, S, Hyde, M & Seewald, R. 2010. Protocol for the provision of amplification within the Ontario Infant Hearing Program, Int J Audiol, 49: S70-79.
Ching, T. & Hill, M. 2005. The Parents’ Evaluation of Aural/Oral Performance of Children (PEACH) Diary, Australian Hearing.
Ching, T. & Hill, M. 200). The parents’ evaluation of aural/oral performance of children (PEACH) scale: Normative data, J Am Acad Audiol, 18, 220-235.
Ching, T., Hill, M. & Dillon, H. 2008. Effect of variations in hearing-aid frequency response on real-life functional performance of children with severe or profound hearing loss, Int J Audiol, 47, 461-475.
Ching, T, Scollie, S, Dillon, H, Seewald, R, Britton, L, Steinberg, J, et al, 2010. Evaluation of the NAL-NL1 and the DSL v4.1 prescriptions for children: Paired-comparison intelligibility judgements and functional performance ratings, Int J Audiol, 49: S35-S48.
Graham, I., Logan, J., Harrison, M.B., Straus, S.E., Tetroe, J., Caswell, W., et al. 2006. Lost in knowledge translation: Time for a map? J Contin Educ Health Prof, 26, 13-24.
Tsiakpini, L, Weichbold, V, Kuehn-Inacker, H, Coninx, F, D’Haese, P, Almadin, S. 2004. LittlEARS Auditory Questionnaire, MED-EL, Innsbruck, Austria.
Weichbold, V, Tsiakpini, L, Coninx, F, &D’Haese, P. 2005. Development of a parent questionnaire for assessment of auditory behaviour of infants up to two years of age, Laryngo-Rhino-Otol, 84: 328-334.
Coninx, F, Weichbold, V, Tsiakpini, L, Autrique, E, Bescond, G, Tamas, L. 2009. Validation of the LittlEARS® Auditory Questionnaire in children with normal hearing, Int J Pediatr Otorhi, 73, 1761-1768.