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Factors influenceing long-term prognosis in male patients surviving a first coronary attack
Insights
This study on coronary heart disease survivors found that attack severity impacts long-term survival. Reduced cigarette consumption and lower blood pressure post-myocardial infarction are linked to better outcomes.
Area of Science:
- Cardiology
- Public Health
Background:
- Secondary prevention programs are crucial for patients surviving acute coronary events.
- Long-term outcomes after myocardial infarction require further investigation.
Purpose of the Study:
- To evaluate the 4-year mortality and prognostic factors in men participating in a coronary heart disease secondary prevention program.
- To identify clinical characteristics and lifestyle factors associated with survival after a first myocardial infarction.
Main Methods:
- A cohort of 364 men surviving a first acute coronary insufficiency or myocardial infarction was followed for at least 4 years.
- Data collected included attack severity, cigarette consumption, blood pressure, serum cholesterol, weight, and post-infarction angina.
- Statistical analysis was performed to identify factors associated with 4-year survival.
Main Results:
- The 4-year mortality rate was 13.5% (34 patients), with an excess of deaths in the first year.
- Only the severity of the acute attack was significantly associated with poorer 4-year survival.
- Survivors had significantly lower post-infarction cigarette consumption and lower follow-up blood pressure levels compared to decedents.
Conclusions:
- Attack severity is a key predictor of long-term survival after myocardial infarction.
- Lifestyle modifications, including smoking cessation and blood pressure management, are vital for secondary prevention.
- Serum cholesterol and weight did not significantly impact prognosis in this cohort.
Abstract:
Three hundred and sixty-four men who survived a first episode of acute coronary insufficiency or myocardial infarction for 28 days were admitted to a coronary heart disease secondary programme between 1 January 1961 and 31 December 1971. Of these, 252 have been followed for at least 4 years. The 4-year mortality was 13.5 per cent (34 patients). The average mortality was 3.4 per cent but an excess of deaths occurred during the first year of follow-up. Of 11 characteristics measured during the acute attack, only severity of the attack was significantly associated with poor 4-year survival. Cigarette consumption after infarction was significantly less among those surviving the 4-year period when compared with decedents. Follow-up systolic and diastolic blood pressure levels were significantly lower among decedents. No significant differences were noted in serum cholesterol levels and in mean weight, The presence of post-infarction angina did not affect the prognosis.