Cardiovascular disease--linking pathology and epidemiology

Area of Science:

• Cardiovascular Medicine
• Epidemiology
• Pathology

Background:

• Coronary heart disease (CHD) emerged in the early 20th century, with mortality escalating post-WWI, particularly in the USA.
• Initial research predominantly followed the lipid infiltration hypothesis for atheroma.
• Epidemiological and pathological studies later highlighted the thrombotic component of CHD.

Purpose of the Study:

• To investigate the role of thrombosis in coronary heart disease (CHD) pathology.
• To synthesize findings from epidemiological, pathological, and clinical studies on CHD.
• To evaluate the implications of recognizing the thrombotic component for CHD prevention and treatment.

Main Methods:

• Epidemiological analysis of autopsy records and national necropsy surveys.
• Review of pathological evidence for thrombosis in CHD.
• Integration of findings from clinical trials (e.g., aspirin) and prospective studies on hemostatic function.

Main Results:

• Pathological evidence confirmed thrombosis as a significant contributor to clinical CHD, comparable to atheroma.
• Clinical trials and prospective studies strengthened the understanding of thrombosis' role.
• Warfarin's value in anticoagulation is being re-evaluated for safety and efficacy.

Conclusions:

• Recognizing thrombosis' role impacts pharmacological interventions for CHD more than lifestyle modifications.
• Aspirin and thrombolytic therapy are crucial in acute myocardial infarction; aspirin aids secondary prevention.
• Warfarin's dual effect on vessel wall and lumen occlusion helps reconcile atheroma and thrombosis hypotheses in CHD.