Coronary atherosclerosis and myocardial infarction in autopsied patients in Gondar, Ethiopia

Area of Science:

• Cardiovascular Pathology
• Epidemiology
• Public Health

Background:

• Atherosclerotic lesions and myocardial infarction (MI) are significant global health concerns.
• Data on the prevalence and progression of coronary artery disease (CAD) in African populations, specifically Ethiopians, is limited.
• Understanding the burden of cardiovascular disease (CVD) in Ethiopia is crucial for public health initiatives.

Purpose of the Study:

• To investigate the prevalence and patterns of atherosclerotic lesions and myocardial infarction in a cohort of Ethiopian patients.
• To determine the age of onset and progression of coronary atherosclerosis in the studied population.
• To discuss the implications of observed cardiovascular disease (CVD) incidence in Ethiopians.

Main Methods:

• Autopsy-based cross-sectional study.
• Examination of 124 Ethiopian patients' hearts for atherosclerotic lesions and myocardial infarction.
• Age-specific analysis of lesion prevalence and progression.

Main Results:

• Aortic lesions were present in 47% and coronary lesions in 21% of cases.
• Myocardial infarction (MI) was identified in 6.5% of patients, with two cases attributed to sudden death.
• Fatty streaks appeared after age 19, increasing with age, while fibrous plaques emerged around age 40, peaking in older age groups.

Conclusions:

• Atherosclerosis and myocardial infarction (MI) are prevalent in Ethiopian patients, indicating a substantial burden of coronary artery disease (CAD).
• The findings suggest a progressive nature of coronary atherosclerosis with age in this population.
• The study underscores the importance of addressing cardiovascular disease (CVD) risk factors and prevention strategies in Ethiopia and among black Africans.