View All Issues
Effects of Pressure Sweep Factors on Acoustic Immittance Measures in Ears with Normal/Low and High Acoustic Admittance | Journal of All India Institute of Speech and Hearing

Journal of All India Institute of Speech and Hearing

ISSN


ISSN


Advance Search
Information
Vol 39 No 1 (2020)
Hearing

Effects of Pressure Sweep Factors on Acoustic Immittance Measures in Ears with Normal/Low and High Acoustic Admittance

PDF
  • Kishore Tanniru,
  • Arunraj Karuppannan,
  • Gowtham H.S,
  • Adel ljadaan
Published September 1, 2020
Keywords
  • Middleear, Tympanometric peak pressure, Admittance/Compliance, Acoustic reflex 2
How to Cite
Kishore Tanniru, Arunraj Karuppannan, H.S, G., & Adel ljadaan. (2020). Effects of Pressure Sweep Factors on Acoustic Immittance Measures in Ears with Normal/Low and High Acoustic Admittance. Journal of All India Institute of Speech and Hearing, 39(1), 57-64. Retrieved from http://203.129.241.91/jaiish/index.php/aiish/article/view/1296

Abstract

Normal middle-ear function has a tympanometric peak pressure (TPP) of ~0 daPa, with a sharp decline as the air pressure withdraws away from 0 daPa. However, there is no information about variations in the TPP because of changes in pressure sweep direction and sweep rate in ears with different acoustic admittance values. This study investigated the effects of pressure sweep direction and rate on the TPP and acoustic admittance values in individuals with high- and normal-/low acoustic admittance middle-ears (25 ears with healthy middle-ear acoustic admittance [Group I] and 19 ears with high middle-ear acoustic admittance [Group II]). We explored changes in ipsilateral acoustic reflex thresholds (ARTs) monitored with the obtained TPPs. Tympanometry was performed under four experimental conditions in two pressure directions (conventional and reverse) and at two pressure rates (high and low). In addition, we measured ipsilateral ARTs at octave frequencies from 500 to 4000 Hz for the obtained TPPs. We observed significant differences in the TPPs, but not in acoustic admittance measures, in both groups. Analysis of ipsilateral ARTs monitored at different TPPs showed significant differences between the four experimental conditions in Group II at octave frequencies >1000 Hz but not in Group I. Low (better) ARTs were elicited with lower variability at a TPP obtained in the conventional pressure sweep direction but at a low pressure sweep rate of 50 daPa/s. Therefore, tympanometric measurements are suggested to be performed at a low pressure sweep rate and in a conventional pressure sweep direction, especially for people with increased acoustic admittance.

PDF

References

  1. Alberti, P. W., & Jerger, J. F. (1974). Probe-tone frequency and the diagnostic value of tympanometry. Archives of Otolaryngology, 99(3), 206-210.
  2. American Speech-Language-Hearing Association. (1988). Tympanometry [relevant paper]. Retrieved from www.asha.org/policy.
  3. Bhatta, R., & Adhikari, P. (2008). Correlation between tympanogram and myringotomy fluid in pediatric patients with otitis media with effusion. International Archieves of Otorhinolaryngology, 12(2), 220-223.
  4. Bian, J. H. (2014). Effects of air pressure change rate in the ear canal on 1000-hz tympanometry: a preliminary report. Paper presented at the 10th Annual Symposium on Graduate Research and Scholarly Projects, Heskett Center, Wichita State University.
  5. Browning, G. G., Swan, I. R., & Gatehouse, S. (1985). The doubtful value of tympanometry in the diagnosis of otosclerosis. Journal of Laryngology and Otology, 99(6), 545-547.
  6. Creten, W. L., & Van Camp, K. J. (1974). Transient and quasi-static tympanometry. Scandinavian Audiology, 3(1), 39-42.
  7. DiGiovanni, J. J., & Ries, D. T. (2007). Stapedial reflex and ears with high static acoustic admittance. American Journal of Audiology, 16(1), 68-74.
  8. Feldman, R. M., Fria, T. J., Palfrey, C. C., & Dellecker, C. M. (1984). Effects of rate of air pressure change on tympanometry. Ear and Hearing, 5(2), 91-95.
  9. Gaihede, M. (1999). Mechanical properties of the middle ear system investigated by its pressure-volume relationship. Introduction to methods and selected preliminary clinical cases. Audiol Neurootology and Neuro-Otology, 4(3-4), 137-141.
  10. Gaihede, M., Bramstoft, M., Thomsen, L. T., & Fogh, A. (2005). Accuracy of tympanometric middle ear pressure determination in secretory otitis media: Dose-dependent overestimation related to the viscosity and amount of middle ear fluid. Otology and Neurotology, 26(1), 5-11.
  11. Hergils, L. G., Magnuson, B., & Falk, B. (1990). Different tympanometric procedures compared with direct pressure measurements in healthy ears. Scandinavian Audiology, 19(3), 183-186.
  12. Kaf, W. A. (2011). Wideband energy reflectance findings in presence of normal tympanogram in children with Down's syndrome. International Journal of Pediatric Otorhinolaryngology, 75(2), 219-226.
  13. Kim, J. S. (2003). Effects of frequency, rate, and direction of stimuli on tympanometric measures. Communication Sciences & Disorders, 8(2), 179-195.
  14. Kobayashi, T., Okitsu, T., & Takasaka, T. (1987). Forward-backward tracing tympanometry. Acta Oto-Laryngologica Supplementum, 435, 100-106.
  15. Koebsell, K. A., & Margolis, R. H. (1986). Tympanometric gradient measured from normal preschool children. Audiology, 25(3), 149-157.
  16. Margolis, R. H., & Heller, J. W. (1987). Screening tympanometry: Criteria for medical referral. Audiology, 26(4), 197-208.
  17. Margolis, R. H., & Smith, P. (1977). Tympanometric asymmetry. Journal of Speech and Hearing Research, 20(3), 437-446.
  18. Martin, F. N., & Coombes, S. (1974). Effects of external ear canal pressure on the middle-ear muscle reflex threshold. Journal of Speech and Hearing Research, 17(3), 526-530.
  19. Moore, B. C. (2012). An Introduction to the Psychology of Hearing (6th ed.). Bingley, UK: Emerald Group Publishing Ltd.
  20. Renvall, U., & Holmquist, J. (1976). Tympanometry revealing middle ear pathology. Annals of Otology, Rhinology, and Laryngology, 85(2 Suppl 25 Pt 2), 209-215.
  21. Rizzo, S., Jr., & Greenberg, H. J. (1979). Influence of ear canal air pressure on acoustic reflex threshold. Journal of the American Auditory Society, 5(1), 21-24.
  22. Shahnaz, N., & Polka, L. (1997). Standard and multifrequency tympanometry in normal and otosclerotic ears. Ear and Hearing, 18(4), 326-341.
  23. Shanks, J. E., & Wilson, R. H. (1986). Effects of direction and rate of ear-canal pressure changes on tympanometric measures. Journal of Speech and Hearing Research, 29(1), 11-19.
  24. Stach, B. A. (1998). Clinical audiology : An introduction. San Diego, Calif.: Singular Publ.
  25. Sun, X. M., Shaver, M. D., & Harader, J. (2013). Tympanometric measures in ears with negative middle ear pressure, and tests of some common assumptions. International Journal of Audiology, 52(5), 333-341.
  26. Therkildsen, A. G., & Gaihede, M. (2005). Accuracy of tympanometric middle ear pressure determination: the role of direction and rate of pressure change with a fast, modern tympanometer. Otology and Neurotology, 26(2), 252-256.
  27. Van Camp, K. J., Creten, W. L., Vanpeperstraete, P. M., & Van de Heyning, P. H. (1980). Tympanometry-detection of middle ear pathologies. Acta Oto-Rhino-Laryngologica Belgica, 34(5), 574-583.
  28. Wilson, R. H., Shanks, J. E., & Kaplan, S. K. (1984). Tympanometric changes at 226 Hz and 678 Hz across 10 trials and for two directions of ear canal pressure change. Journal of Speech and Hearing Research, 27(2), 257-266.