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[Myocardial hypertrophy, arterial hypertension and sudden cardiac death]
Insights
Sudden coronary death (SCD) in men aged 30-59 is often linked to increased heart weight and arterial hypertension (AH). These factors, along with conditions like cardiosclerosis and cardiomyopathy, predispose individuals to SCD.
Area of Science:
- Cardiology
- Pathology
- Public Health
Background:
- Sudden coronary death (SCD) is a significant cause of mortality in middle-aged men.
- Identifying predisposing factors for SCD is crucial for preventive strategies.
Purpose of the Study:
- To investigate the association between heart weight, arterial hypertension (AH), and other cardiac conditions in men aged 30-59 experiencing SCD.
- To determine the prevalence of AH and its correlation with myocardial hypertrophy in SCD cases.
Main Methods:
- Retrospective analysis of 721 cases of SCD in men aged 30-59.
- Histomorphometric examination of kidneys in 345 SCD cases to assess arterial hypertension.
- Evaluation of heart weight and presence of myocardial hypertrophy.
Main Results:
- A majority of SCD cases (44.2%) exhibited increased heart weight (≥500g).
- Arterial hypertension (AH) was detected in 41.2% of SCD cases, a significantly higher incidence than in the general population.
- Myocardial hypertrophy in SCD cases without AH was often attributed to postinfarction cardiosclerosis or cardiomyopathy.
Conclusions:
- Increased heart weight and arterial hypertension are significant predisposing factors for sudden coronary death in men aged 30-59.
- Other conditions like cardiosclerosis and cardiomyopathy also contribute to SCD, even in the absence of AH.
Abstract:
721 cases of sudden coronary death (SCD) of men aged 30-59 were studied. It was found out that SCD happened in majority of cases in subjects with increased weight of heart: 44.2% of patients had heart weight of 500 g or more. A special histomorphometric study of kidneys (345 cases of SCD) revealed arterial hypertension (AH) in 41.2% of cases, which far exceeded AH incidence in the population of men of equal age. Nevertheless, not in all cases of SCD was myocardial hypertrophy caused by AH. In patients with no AH myocardial hypertrophy was usually caused by postinfarction cardiosclerosis. In certain cases of SCD without cardiosclerosis accompanied by manifest myocardial hypertrophy there were signs of dilatative or hypertrophic cardiomyopathy. The obtained results suggest that AH and increased weight of heart should be considered factors predisposing to SCD.