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Related Experiment Videos

Auditory function after spinal anesthesia

L P Wang1, M Magnusson, J Lundberg

  • 1Department of Anesthesiology and Intensive Care, Lund University Hospital, Sweden.

Regional Anesthesia
|May 1, 1993
PubMed
Summary
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Spinal anesthesia with 26-gauge needles generally does not affect hearing, though rare cases of transient hearing loss can occur. Minor hearing changes are not a significant concern with this needle size.

Area of Science:

  • Anesthesiology
  • Otolaryngology
  • Neurosurgery

Background:

  • Spinal anesthesia is commonly used for lower abdominal surgeries.
  • Potential auditory side effects from dural puncture or fluid absorption are a concern.

Purpose of the Study:

  • To investigate the impact of 26-gauge spinal needles on patient hearing.
  • To assess auditory function following spinal anesthesia.

Main Methods:

  • Prospective study of 18 male patients undergoing transurethral procedures.
  • Auditory function assessed via pure tone, Bekesy, and speech audiometry pre- and post-operatively.
  • Serum electrolyte and osmolarity levels measured; cranial nerve function examined postoperatively.

Main Results:

Related Experiment Videos

  • No significant mean change in hearing ability was observed across groups.
  • One patient experienced severe, transient low-frequency hearing loss and postdural puncture headache.
  • A significant decrease in serum osmolarity was noted in the epidural TURP group.

Conclusions:

  • 26-gauge spinal needles are generally safe regarding hearing.
  • Transient severe hearing loss remains a possibility, albeit rare.
  • Minor hearing impairment is not a typical complication with this needle size.