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Effect of age on long-term prognosis of patients with myocardial infarction

R Castelló1, E Alegría, A Merino

  • 1Cardiovascular Department, University Clinic, Pamplona, Spain.

International Journal of Cardiology
|August 1, 1988
PubMed

Insights

Elderly patients with acute myocardial infarction face higher in-hospital mortality and complications like heart failure. However, age alone doesn't determine risk; clinical factors are key for stratifying elderly cardiac patients.

Area of Science:

  • Cardiology
  • Geriatric Medicine
  • Internal Medicine

Background:

  • Acute myocardial infarction (AMI) affects both younger and older populations.
  • Understanding prognostic factors in elderly AMI patients is crucial for risk stratification and management.
  • Previous studies suggest elderly patients may have poorer outcomes, but data on risk factor prevalence and specific complications are varied.

Purpose of the Study:

  • To compare the characteristics and outcomes of acute myocardial infarction in patients under and over 65 years old.
  • To identify factors influencing in-hospital and late mortality in elderly patients experiencing AMI.
  • To determine if age is an independent prognostic factor for survival after AMI.

Main Methods:

  • Retrospective study of 181 patients under 65 and 129 patients over 65 with acute myocardial infarction.
  • Analysis of coronary risk factors, previous cardiac events, and acute phase complications.
  • Comparison of in-hospital mortality, late mortality, and 5-year survival rates between age groups.

Main Results:

  • Elderly patients exhibited higher rates of congestive heart failure (51.4% vs 32.6%) and complete heart block (17.1% vs 7.2%) during AMI.
  • In-hospital mortality was significantly higher in the elderly group (34% vs 16%).
  • Age did not impact survival in Killip class I patients, but significantly reduced life expectancy in elderly patients with Killip class > II.

Conclusions:

  • Elderly patients with AMI are not a homogeneous high-risk group; clinical variables identify subsets.
  • Age is an independent prognostic factor for late mortality, particularly when heart failure is present.
  • Clinical assessment during the acute phase is vital for predicting outcomes in older adults post-myocardial infarction.

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