[Comparative studies of sudden and non-sudden death due to coronary disease]

Area of Science:

• Cardiology
• Pathology
• Public Health

Background:

• Coronary heart disease (CHD) is a leading cause of mortality worldwide.
• Understanding the differences between acute and non-acute CHD deaths is crucial for targeted prevention and treatment strategies.
• Chronic ischemic heart disease (CIHD) presents with varied clinical manifestations, impacting mortality patterns.

Purpose of the Study:

• To compare the characteristics of patients experiencing acute versus non-acute deaths from coronary heart disease.
• To investigate the demographic and pathological differences between these two groups.
• To identify risk factors associated with sudden cardiac death in CIHD patients.

Main Methods:

• Comparative analysis of patient data from acute and non-acute coronary heart disease death groups.
• Age at death comparison between CHD death groups and non-coronary death controls.
• Analysis of causes of death, including sudden death, acute coronary insufficiency, myocardial infarction, coronary thrombosis, and cardiac rupture.
• Assessment of the frequency of severe coronary arteriosclerosis in different death groups.

Main Results:

• The acute CHD death group had a significantly lower average age at death compared to the non-acute CHD death group.
• No age difference was observed between non-acute CHD deaths and non-coronary deaths.
• Sudden death was the predominant outcome in CIHD patients, especially in males under 50.
• Acute coronary insufficiency was the primary cause of sudden death.
• Acute and recurrent myocardial infarction were common in non-acute coronary deaths.
• Severe coronary arteriosclerosis was significantly more prevalent in the acute CHD death group.

Conclusions:

• Younger individuals are disproportionately affected by acute coronary heart disease deaths.
• Severe coronary arteriosclerosis is a key pathological finding in acute CHD mortality.
• Sudden death, often due to acute coronary insufficiency, is a major concern in CIHD, particularly for younger males.