Obesity and Coronary Heart Disease: Epidemiology, Pathology, and Coronary Artery Imaging

Area of Science:

• Cardiology
• Public Health
• Metabolic Disorders

Background:

• Overweight and obesity are linked to cardiovascular disease (CVD), especially coronary heart disease (CHD).
• Obesity is recognized as an independent risk factor for CVD.
• The metabolic syndrome, characterized by central obesity, shows a strong association with CVD and CHD.

Purpose of the Study:

• To review the association between overweight/obesity and cardiovascular disease (CVD) outcomes.
• To explore the role of obesity in the context of cardiovascular risk factors and metabolic syndrome.
• To examine emerging evidence on the obesity paradox and the impact of physical activity on CVD risk in obese individuals.

Main Methods:

• Review of epidemiologic evidence linking overweight and obesity to CHD.
• Analysis of studies on the metabolic syndrome and its association with CVD.
• Evaluation of recent research on the obesity paradox and cardiorespiratory fitness in relation to CVD mortality.

Main Results:

• Abundant epidemiologic data support a strong association between overweight/obesity and CHD.
• Evidence from postmortem and coronary imaging studies is less conclusive.
• Recent findings suggest an obesity paradox concerning mortality in patients with established CHD.
• Physical activity and cardiorespiratory fitness appear to reduce the adverse cardiovascular effects of obesity.

Conclusions:

• Overweight and obesity are significant contributors to cardiovascular disease (CVD) and coronary heart disease (CHD) risk.
• While obesity is an independent risk factor, physical activity and fitness can attenuate its negative impact.
• Further research is needed on the effects of intentional weight loss on CVD outcomes in overweight and obese populations.