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Chloral hydrate and middle ear pressure.

K J Abdul-Baqi1

  • 1University of Jordan, Amman.

The Journal of Laryngology and Otology
|June 1, 1991
PubMed
Summary

Choral hydrate hypnosis significantly increases middle ear pressure in children, with effects reversing post-hypnosis. Tympanic membrane compliance varied by sex.

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Area of Science:

  • Otolaryngology
  • Pediatric Medicine
  • Pharmacology

Background:

  • Middle ear pressure and tympanic membrane compliance are key indicators of middle ear health.
  • Understanding factors influencing these parameters is crucial for diagnosing and managing middle ear conditions in children.

Purpose of the Study:

  • To investigate the effects of oral choral hydrate hypnosis on middle ear pressure and tympanic membrane compliance in infants and young children.
  • To assess the reversibility of any observed changes.

Main Methods:

  • Middle ear pressure and tympanic membrane compliance were measured using tympanometry in 34 children (66 ears) with normal middle ears.
  • Measurements were taken before and 40-60 minutes after oral administration of choral hydrate.

Main Results:

  • A significant increase in middle ear pressure was observed in all subjects following choral hydrate administration, ranging from +19 to +219 mm H2O.
  • Middle ear pressure returned to pre-hypnotic levels after recovery.
  • Tympanic membrane compliance showed a significant increase in males but a non-significant decrease in females.

Conclusions:

  • Oral choral hydrate hypnosis temporarily elevates middle ear pressure in children.
  • The observed changes in middle ear pressure are reversible.
  • Sex-specific differences in tympanic membrane compliance response to choral hydrate warrant further investigation.

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