29/10/2025
CAUSES OF CORONARY ARTERY DISEASES
Development of atherosclerosis Enlarge
A buildup of fatty plaques in the arteries (atherosclerosis) is the most common cause of coronary artery disease. Risk factors include a poor diet, lack of exercise, obesity and smoking. Healthy lifestyle choices can help lower the risk of atherosclerosis.
Causes of irregular heartbeats (arrhythmias)
Common causes of arrhythmias or conditions that can lead to them include:
Cardiomyopathy Coronary artery disease Diabetes Drug misuse Emotional stress Excessive use of alcohol or caffeine Heart problem present at birth (congenital heart defects)High blood pressurebSmoking Heart valve disease Use of certain medications, including those bought without a prescription, and herbs and supplements Causes of congenital heart defects
A congenital heart defect develops while a baby is growing in the womb. A congenital heart defect forms as the baby's heart develops, about a month after conception. Congenital heart defects change the flow of blood in the heart. Some medical conditions, medications and genes increase the risk of congenital heart defects.
Causes of a thickened or enlarged heart muscle (cardiomyopathy)
The cause of cardiomyopathy depends on the type:
Dilated cardiomyopathy. The cause of this most common type of cardiomyopathy often is unknown. It may be passed down through families (inherited). Dilated cardiomyopathy typically starts in the heart's main pumping chamber (left ventricle). Many things can cause damage to the left ventricle, including heart attacks, infections, toxins and some drugs, including cancer medicines.Hypertrophic cardiomyopathy. This type is usually passed down through families (inherited).
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