Coronary heart disease
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Coronary Heart Disease Overview and Key Risk Factors
Coronary heart disease (CHD), also known as coronary artery disease (CAD), is a condition where plaque builds up in the coronary arteries, narrowing or blocking them and reducing blood flow to the heart muscle. This can lead to chest pain (angina), heart attacks, arrhythmias, and heart failure. CHD is one of the most common and deadly cardiovascular diseases worldwide, with a particularly rapid increase in prevalence in countries like India and the UK, and it remains a leading cause of death globally Kaur2023Dhakal,2024Li2016+3 MORE.
The main risk factors for CHD include high blood pressure, high cholesterol, smoking, diabetes, obesity, lack of exercise, poor diet, and a family history of heart disease. Men, older adults, and smokers are at higher risk, and the disease is more common in these groups. Women tend to develop CHD later in life and often have worse outcomes compared to men, partly due to differences in treatment and presentation Kaur2023Yoon2016Paul1963+1 MORE.
Symptoms and Diagnosis of Coronary Heart Disease
The most common symptom of CHD is chest discomfort or pain (angina), which may radiate to the shoulder, arm, back, neck, or jaw. Other symptoms include shortness of breath, and sometimes, the first sign of CHD can be a heart attack. Some people may not experience any symptoms until a major event occurs. Diagnosis typically involves blood tests to check cholesterol and inflammatory markers, as well as imaging tests like ECGs and angiograms to assess blockages and heart function Dhakal,2024Bill2024Bhosale2022+1 MORE.
The Role of Inflammation and Biomarkers
Inflammation plays a significant role in the development and progression of CHD. Plaques in the arteries are made up of lipids, calcium, and inflammatory cells. When these plaques rupture, they can cause blood clots that block blood flow, leading to heart attacks. Key inflammatory biomarkers used to assess the severity and prognosis of CHD include interleukin-6, C-reactive protein (CRP), complement, CD40, and myeloperoxidase (MPO) Bhosale2022Khamis2016.
Trends in Prevalence and Demographic Differences
Recent studies show that the overall prevalence of CHD in the U.S. has decreased over the past decade, especially among women, older adults, and those without established risk factors. However, the prevalence has not changed significantly among people with specific risk factors like diabetes, hypertension, or high cholesterol. This suggests that while public health efforts have made progress, targeted interventions for high-risk groups are still needed .
Prevention and Management Strategies
Preventing and managing CHD involves addressing modifiable risk factors. A healthy diet, regular exercise, quitting smoking, and controlling blood pressure and cholesterol are essential steps. Treatment may also include medications and procedures such as stent placement or bypass surgery to restore blood flow. Ongoing medical care and lifestyle adjustments are crucial for improving heart health and preventing complications Kaur2023Bill2024Li2016+1 MORE.
Conclusion
Coronary heart disease remains a major global health challenge, driven by lifestyle and genetic risk factors. While progress has been made in reducing overall prevalence, especially in some populations, high-risk groups continue to be affected. Early detection, lifestyle changes, and effective management are key to reducing the burden of CHD and improving outcomes for those at risk.
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