Presentation on theme: "Wendy D. Hanks, Ph.D. Molly A. Kinder, M.S. Gallaudet University"— Presentation transcript:
1Wendy D. Hanks, Ph.D. Molly A. Kinder, M.S. Gallaudet University Tympanometry Protocols Used In Early Intervention Services In the United States: A Pilot Survey of Early Intervention and Pediatric AudiologistsWendy D. Hanks, Ph.D.Molly A. Kinder, M.S.Gallaudet University
2The Purpose What tympanometry protocols are being used? Is the 1000 Hz probe tone in use?Audiologist’s 1000 Hz probe tone knowledge?
3Our Respondents Sent survey via email on: 153 audiologists responded EHDI listserveEducational Audiology Association listserveAAA “SoundOff” listserve153 audiologists responded
4The Survey Began with demographics 13% male; 87% female 35 states, Washington D.C., and the Commonwealth of the Marina Islands represented
5Demographics – Highest Degree Other – 6 Au.D. Students, 2 M.Eds, and 1 M.S.CStriking that majority have the Au.D – when we look at experience too, we see that a majority have 21 or more years experience - thought there would be more MA/MS degrees
6Demographics – Practice Setting Other - medical clinic (2), out-patient clinic (2), private non-profit rehab center (1), HMO audiology clinic (1), outreach clinic (1), multi-specialty clinic (2), public health clinic (1), school for the deaf (2), outpatient rehab clinic (4), government facility (4), mobile outpatient clinic (1), title V state agency (1), non-profit hearing and speech center (1), early intervention program (1), non-profit private pre-school (1), university hospital (1), state hospital (1), children's clinic for rehab services (1), and pediatric hospital (1).
121000 Hz TympanometryNumber of audiologist who use the 1000 Hz probe tone for screening and diagnostic modesCorrelates with equipment data – most used equipment has only diagnostic capabilityHope that this and more data will show a need for more screening equipment/screening use of 1000 Hz so may be the babies won’t have to referred for a full diagnositic
20Parameters used to Determine if Tympanogram is Normal
21Norms UsedASHA does not include 1000 Hz tympanometry in guidelines; Jerger types not classified for 1000 Hz tympsKei and Marglois are only ones that have specific 1000 Hz calculated norms
22Current Studies and Data In 2003, two studies published with normative data for 1000 Hz tympanometryKei et al., 2003SAA compensated at +200 daPaRefer if SAA less than .39 mlMargolis et al., 2003SAA compensated at -400 da PaRefer if SAA less than .6 ml
231000 Hz Tympanometry Knowledge Other - These responses included: NCHAM courses (3 respondents), equipment manufacturer (3 respondents), in school (2 respondents), clinical experience/discussions (2 respondents), only use 226 or 678 (1), "don't know enough about benefits" (1), Capstone project work (1) and Audiology Online (1 respondent).
241000 Hz Probe Tone UseOther - do not screen/test infants (2), do not have 1000 Hz capability (6), not used (1), when child is less than 6 months old (2), with infants (1), and for failed newborn hearing screening (1).
25Is 1000 Hz Tympanometry Useful With Children 0-6 Months? Why those 2 people who said no is not known, did not ask why they did not feel it was not useful
26Additional Information 26 of 153 respondents 1000 Hz tympanometry is crucial/important in the testing of young children (6)Do not have the capability of 1000 Hz probe tone (7)Interpretation of 1000 Hz can be difficult (4)The protocol for using immittance was described (3)1000 Hz data is needed (2)Use 1000 Hz as a cross check only (1)226 Hz can be used reliably with the infants population (1)“Could not answer all the technical questions (1)"I work part-time and don't see many children (1).“Please add any additional information that you feel is important in the use of tympanometry in the 0-3 year old population?”
27Conclusions – Further study of this topic is needed More training on the appropriate use of tympanometry is needed1000 Hz tympanometry normative data should be used consistently