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Audiological findings in pregnancy.

G Sennaroglu1, E Belgin

  • 1Department of Otorhinolaryngology, Head and Neck Surgery, Section of Audiology and Speech Pathology, Hacettepe University Medical Faculty, Ankara, Turkey. lsennar@tr.net

The Journal of Laryngology and Otology
|September 6, 2001
PubMed
Summary

Pregnancy can cause temporary low-frequency hearing loss and loudness discomfort, impacting cochlear function. These auditory changes resolve postpartum, indicating they are not pathological.

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Area of Science:

  • Audiology
  • Otorhinolaryngology
  • Obstetrics and Gynecology

Background:

  • Pregnancy involves significant hormonal fluctuations.
  • Potential auditory system changes during pregnancy are not fully understood.

Purpose of the Study:

  • To investigate the relationship between hormonal changes during pregnancy and cochlear function.
  • To assess audiologic and auditory brain stem response (ABR) changes across pregnancy trimesters and postpartum.

Main Methods:

  • Audiologic evaluations including pure-tone audiometry, acoustic immittance, and ABR tests were performed.
  • 20 pregnant women and 18 non-pregnant controls were included.
  • Data were compared across pregnancy trimesters and the postpartum period.

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Main Results:

  • A temporary decrease in hearing sensitivity was observed at low frequencies (125-500 Hz) during pregnancy, resolving postpartum.
  • No significant changes were noted at frequencies above 500 Hz.
  • A statistically significant difference in uncomfortable loudness levels was found between the third trimester and postpartum.

Conclusions:

  • Pregnancy is associated with transient low-frequency hearing loss and loudness tolerance issues, potentially mimicking cochlear pathology.
  • These auditory changes are not pathological and fully reversible postpartum.