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Aural suction without vertigo.

A R Nicolaides1, R F Gray

  • 1Department of Otolaryngology, Addenbrooke's Hospital, Cambridge, UK.

Clinical Otolaryngology and Allied Sciences
|April 1, 1990
PubMed
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Maintaining a constant temperature in the mastoid cavity during aural suction prevents vertigo. Controlled humidified air at 38°C eliminated vertigo and nystagmus in patients undergoing the procedure.

Area of Science:

  • Otolaryngology
  • Neuroscience

Background:

  • Aural suction can induce vertigo and nystagmus.
  • Temperature fluctuations in the mastoid cavity are implicated in this phenomenon.

Purpose of the Study:

  • To investigate the effect of controlled mastoid cavity temperature on vertigo induced by aural suction.
  • To determine if maintaining a constant temperature prevents vertigo and nystagmus.

Main Methods:

  • Aural suction was performed on 24 patients.
  • In one condition, humidified air at 38°C was used to maintain constant mastoid cavity temperature.
  • In a control condition, temperature was not controlled during suction.

Main Results:

  • When mastoid cavity temperature was controlled, it dropped by a maximum of 0.2°C, and no patients experienced vertigo or nystagmus.

Related Experiment Videos

  • Without temperature control, the cavity temperature dropped by an average of 8.9°C, inducing vertigo and nystagmus in 18 patients.

    • Conclusions:

    • Maintaining a constant temperature in the mastoid cavity during aural suction effectively prevents vertigo and nystagmus.
    • Thermoregulation of the mastoid cavity is crucial for preventing iatrogenic vertigo during otologic procedures.