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Contributors to cardiac invalidism after acute myocardial infarction
1Clinical Research Department, Sharp Memorial Hospital, San Diego, CA 92123.
Insights
Social support and neuroticism predict cardiac invalidism after myocardial infarction. Health perception influences return to work, not illness severity. Optimal support is key for recovery.
Area of Science:
- Cardiology
- Psychology
Background:
- Cardiac invalidism is a recognized phenomenon, yet its contributing factors remain understudied.
- Understanding psychological and social predictors is crucial for patient recovery post-myocardial infarction.
Purpose of the Study:
- To identify predictors of cardiac invalidism and return to work in patients after their first acute myocardial infarction.
- To investigate the role of social support, psychological factors, and illness severity in post-myocardial infarction recovery.
Main Methods:
- Longitudinal study of 111 patients post-myocardial infarction, assessed at 1 and 4 months.
- Utilized standardized instruments to measure social support, self-esteem, health perceptions, emotional distress, dependency, and neuroticism.
- Assessed illness severity using Coronary Prognostic Index, Specific Activity Survey, and treadmill testing.
Main Results:
- Neuroticism and social support were significant predictors of cardiac invalidism at 4 months.
- Illness severity did not predict cardiac invalidism or return to work.
- Health perception was the sole significant predictor of return to work.
Conclusions:
- Social support and psychological factors, particularly neuroticism, are more influential than illness severity in cardiac invalidism.
- Health perception is vital for patients returning to work after myocardial infarction.
- Tailoring social support, especially providing more than initially perceived as adequate, positively impacts psychological outcomes.
Abstract:
Cardiac invalidism is a term used repeatedly in the literature during the past few decades, but little attention has been given to studying the variables contributing to this phenomenon. Data were collected from 111 patients with first acute myocardial infarction. Patients were visited at home 1 month and 4 months after hospital discharge. Social support, self-esteem, health perceptions, emotional distress, interpersonal dependency, and neuroticism were measured using standardized instruments. Illness severity was determined using the Coronary Prognostic Index, the Specific Activity Survey, and treadmill testing results. Neuroticism and social support were significant predictors of cardiac invalidism 4 months after myocardial infarction. Illness severity was not a significant predictor of cardiac invalidism or return to work. The only significant predictor of return to work was health perception. Patients receiving more support than desired experienced less cardiac invalidism after acute myocardial infarction. Physicians are encouraged not to assume that patients with large infarcts will become cardiac invalids. Psychologic recovery may require more than 4 months for many patients, but positive messages regarding patient health can influence such outcomes. Families and friends should be taught to provide appropriate types and amounts of support. The amount of support typically thought to be adequate may not be sufficient. Patients who initially receive more support than desired experience the best psychologic outcomes. High levels of support need not continue indefinitely.