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Audiometric pattern as a predictor of cardiovascular status: development of a model for assessment of risk

David R Friedland1, Christopher Cederberg, Sergey Tarima

  • 1Department of Otolaryngology and Communication Sciences, Medical College of Wisconsin, Milwaukee, Wisconsin 53226, USA. dfriedla@mcw.edu

The Laryngoscope
|February 25, 2009
PubMed

Insights

Low-frequency hearing loss is linked to cardiovascular disease, including stroke and heart attack. An audiogram pattern may serve as a screening tool for individuals at risk of cardiovascular events.

Area of Science:

  • Audiology and Cardiology
  • Preventive Medicine
  • Biostatistics

Background:

  • Cardiovascular disease (CVD) is a leading cause of mortality worldwide.
  • Hearing loss, particularly low-frequency hearing loss, is increasingly recognized as a potential indicator of systemic health issues.
  • The relationship between audiometric patterns and cardiovascular status requires further investigation.

Purpose of the Study:

  • To test the hypothesis that low-frequency hearing loss is associated with underlying cardiovascular disease.
  • To develop and validate a mathematical model using hearing thresholds to predict cardiovascular status.
  • To explore the potential of audiogram patterns as a screening tool for cardiovascular risk.

Main Methods:

  • Retrospective chart review of 1,168 audiology patients to collect audiometric and cardiovascular data.
  • Logistic regression analyses and Mantel-Haenszel statistics were used to assess associations, controlling for age and gender.
  • A derived mathematical formula was applied to a separate prospective cohort of 90 patients.

Main Results:

  • A significant association was found between low-frequency hearing loss and cardiovascular disease and risk factors.
  • Low-frequency presbycusis was significantly associated with intracranial vascular pathology (stroke, transient ischemic attacks), peripheral vascular disease, coronary artery disease, and myocardial infarction, even after controlling for traditional risk factors.
  • A mathematical formula was developed to predict the probability of cardiovascular diseases and events based on audiometric pattern and medical history.

Conclusions:

  • Audiogram patterns, specifically low-frequency hearing loss, correlate strongly with cerebrovascular and peripheral arterial disease.
  • Audiometric assessment may serve as a non-invasive screening test for individuals at risk of cardiovascular events.
  • Patients identified with low-frequency hearing loss should be considered at increased risk for cardiovascular events, warranting further medical evaluation and referral.
Abstract

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