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Related Experiment Videos

Treadmill scores in elderly men.

Steve Lai1, Amir Kaykha, Takuya Yamazaki

  • 1Veterans Affairs Health Care System, Palo Alto, California 94121, USA. slai1@itsa.ucsf.edu

Journal of the American College of Cardiology
|February 21, 2004
PubMed
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Exercise stress tests aid in diagnosing and predicting coronary artery disease in older adults. New age-specific scores improve prognosis and diagnosis accuracy in the elderly population.

Area of Science:

  • Cardiology
  • Geriatric Medicine
  • Diagnostic Testing

Background:

  • Current exercise testing guidelines lack robust evidence for the elderly due to study limitations.
  • The Duke Treadmill Score's efficacy in elderly risk stratification is questionable.

Purpose of the Study:

  • To evaluate the diagnostic and prognostic utility of exercise testing in elderly individuals with suspected coronary artery disease.
  • To develop and validate new predictive models for cardiovascular outcomes in older adults.

Main Methods:

  • Analysis of routine clinical exercise testing data from a large cohort of male veterans (≥65 and <65 years) with a 6-year follow-up.
  • Inclusion of a subset undergoing coronary angiography for outcome analysis (cardiovascular mortality and angiographic findings).

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Main Results:

  • Exercise-induced ST depression was prognostic for cardiovascular death in both age groups.
  • Peak metabolic equivalents best predicted all-cause mortality across age groups.
  • Novel age-specific prognostic scores demonstrated predictive value for cardiovascular mortality in the elderly.
  • A specific diagnostic score in the elderly angiographic subset outperformed ST measurements alone.

Conclusions:

  • The choice of mortality endpoint influences prognostic variable selection in exercise testing.
  • Exercise test scores offer valuable diagnostic and prognostic information for coronary artery disease in the elderly.
  • Validation of new scores in independent elderly populations is necessary.