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Aging and pain perception in ischemic heart disease
P F Miller1, D S Sheps, E E Bragdon
1Division of Cardiology, University of North Carolina School of Medicine, Chapel Hill 27599.
American Heart Journal
|July 1, 1990
Summary
Older adults experience less chest pain during heart ischemia, increasing the risk of silent myocardial ischemia. This study found age independently linked to reduced pain perception in coronary artery disease patients.
Area of Science:
- Cardiology
- Gerontology
- Clinical Medicine
Background:
- Age is a known risk factor for coronary artery disease (CAD).
- The connection between aging and silent myocardial ischemia remains unclear.
- Silent ischemia, lacking typical angina symptoms, poses diagnostic challenges.
Purpose of the Study:
- To investigate the relationship between patient age and the perception of ischemic cardiac pain.
- To determine if age is an independent factor influencing silent myocardial ischemia.
Main Methods:
- Analysis of 35 radionuclide ventriculography studies in patients with documented ischemic CAD.
- Calculation of the pain perception index (PPI) based on ST depression and angina onset times during exercise.
- Statistical correlation analysis between PPI, age, medication, and disease severity.
Main Results:
- A significant positive correlation was found between age and PPI (r = 0.37, p = 0.03).
- Older age was associated with a muted perception of ischemic cardiac pain.
- This association persisted even after controlling for medication and disease severity.
Conclusions:
- Increasing age is an independent risk factor for diminished perception of ischemic cardiac pain.
- This reduced pain perception may contribute to a higher prevalence of silent myocardial ischemia in older individuals.
- Age-related changes in pain signaling warrant further investigation in cardiovascular disease.