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Carotid Atherosclerosis Is Associated With Poorer Hearing in Older Adults

Pauline H Croll1, Daniel Bos2, Meike W Vernooij2

  • 1Department of Otorhinolaryngology, Head and Neck Surgery, Erasmus University Medical Center, Rotterdam, the Netherlands; Department of Epidemiology, Erasmus University Medical Center, Rotterdam, the Netherlands; Department of Radiology and Nuclear Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands.

Journal of the American Medical Directors Association
|August 11, 2019
PubMed

Insights

Cardiovascular disease markers, like carotid atherosclerosis, are linked to poorer hearing in older adults, particularly in the right ear. These findings suggest cardiovascular disease prevention strategies may also benefit hearing health.

Area of Science:

  • Audiology
  • Cardiovascular Medicine
  • Gerontology

Background:

  • Cardiovascular disease (CVD) may affect hearing via cochlear nutrient artery narrowing, but population-based evidence is limited.
  • Carotid atherosclerosis serves as a marker for generalized CVD.

Purpose of the Study:

  • To investigate the association between carotid atherosclerosis and hearing loss in a population-based cohort.
  • To determine if markers of generalized CVD correlate with impaired hearing.

Main Methods:

  • A cross-sectional, population-based cohort study involving 3724 participants (mean age 65.5 years).
  • Assessment of carotid atherosclerosis using ultrasound (carotid plaque burden and intima-media thickness [IMT]).
  • Evaluation of hearing loss using pure-tone audiograms.

Main Results:

  • Higher maximum IMT was associated with poorer hearing in the best ear (2.09 dB per 1-mm increase).
  • Increased carotid plaque burden correlated with poorer hearing in the best ear.
  • Right-sided carotid atherosclerosis (IMT and plaque burden) was significantly associated with poorer hearing in the right ear.

Conclusions:

  • Carotid atherosclerosis is linked to poorer hearing in older adults, predominantly affecting the right ear.
  • Cardiovascular disease prevention therapies may offer co-benefits for maintaining inner ear health and preventing hearing loss.
Abstract

Keywords:
Agingcarotid atherosclerosishearing lossintima media thicknessplaque

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