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Hypotension and sensorineural hearing loss: a possible correlation.

A Pirodda1, G G Ferri, G C Modugno

  • 1Dipartimento di Scienze Chirurgiche ed Anestesiologiche, Universitá degli Studi di Bologna, Italy.

Acta Oto-Laryngologica
|February 25, 2000
PubMed
Summary

Hypotension, or low blood pressure, may contribute to sensorineural hearing loss. This study found a higher incidence of hearing impairment in young adults with hypotension, suggesting a link to cochlear damage.

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Area of Science:

  • Otolaryngology
  • Cardiology
  • Audiology

Background:

  • Hypotension's role in sensorineural hearing loss (SNHL) is not fully understood.
  • Vascular risk factors require careful consideration in SNHL etiology.

Purpose of the Study:

  • To investigate the association between hypotension and SNHL.
  • To determine if low blood pressure is a risk factor for cochlear damage.

Main Methods:

  • A prospective study within the "Brisighella Study" cohort.
  • 20 participants (≤50 years) with hypotension (DBP ≤60 mmHg and/or SBP ≤105 mmHg) underwent audiometric and otological exams.
  • Exclusion of individuals with pre-existing audiological/vestibular/otological conditions.
  • Comparison with 100 age-matched controls from the same region.

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Main Results:

  • A statistically significant higher incidence of SNHL in the hypotension group (7/20) compared to controls (3/100).
  • All affected participants in the study group presented with low-frequency hearing loss.
  • Metabolic parameters in the study group were within normal ranges.

Conclusions:

  • Hypotension may be a contributing factor to cochlear damage and SNHL.
  • Alterations in the vasomotor system associated with hypotension could play a role in hearing impairment.
  • Further research into the vascular mechanisms of SNHL is warranted.