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Wendy 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 Audiologists. Wendy D. Hanks, Ph.D. Molly A. Kinder, M.S. Gallaudet University. The Purpose. What tympanometry protocols are being used?

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Wendy D. Hanks, Ph.D. Molly A. Kinder, M.S. Gallaudet University

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  1. Tympanometry Protocols Used In Early Intervention Services In the United States: A Pilot Survey of Early Intervention and Pediatric Audiologists Wendy D. Hanks, Ph.D. Molly A. Kinder, M.S. Gallaudet University

  2. The Purpose • What tympanometry protocols are being used? • Is the 1000 Hz probe tone in use? • Audiologist’s 1000 Hz probe tone knowledge?

  3. Our Respondents • Sent survey via email on: • EHDI listserve • Educational Audiology Association listserve • AAA “SoundOff” listserve • 153 audiologists responded

  4. The Survey • Began with demographics • 13% male; 87% female • 35 states, Washington D.C., and the Commonwealth of the Marina Islands represented

  5. Demographics – Highest Degree

  6. Demographics – Practice Setting

  7. Experience with Pediatrics

  8. Experience with 0-3 Year Olds

  9. Experience – How Many Children Per Week?

  10. Equipment Used…

  11. Probe Tones by Age

  12. 1000 Hz Tympanometry

  13. Parameters - Pump Speed

  14. Parameters – Sweep Pressure Direction

  15. Parameters - Starting Pressure

  16. Parameters – Stopping Pressure

  17. Parameters – Use of Tympanometric Width

  18. Parameters – Type of Display Used

  19. Parameters – Type of Immittance Used

  20. Parameters used to Determine if Tympanogram is Normal

  21. Norms Used

  22. Current Studies and Data • In 2003, two studies published with normative data for 1000 Hz tympanometry • Kei et al., 2003 • SAA compensated at +200 daPa • Refer if SAA less than .39 ml • Margolis et al., 2003 • SAA compensated at -400 da Pa • Refer if SAA less than .6 ml

  23. 1000 Hz Tympanometry Knowledge

  24. 1000 Hz Probe Tone Use

  25. Is 1000 Hz Tympanometry Useful With Children 0-6 Months?

  26. 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). Additional Information26 of 153 respondents

  27. Conclusions – • Further study of this topic is needed • More training on the appropriate use of tympanometry is needed • 1000 Hz tympanometry normative data should be used consistently

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