Who is more likely to experience sudden cardiac arrest?

The likelihood of experiencing sudden cardiac arrest is significantly higher in individuals with underlying heart conditions and those who have had previous heart issues. This is primarily due to the fact that these individuals often have pre-existing abnormalities in their cardiovascular system, which can predispose them to life-threatening arrhythmias. Conditions such as coronary artery disease, heart valve disorders, or cardiomyopathy can lead to electrical disturbances in the heart, increasing the risk of sudden cardiac arrest.

While high cholesterol levels, being overweight, and smoking are risk factors that can contribute to heart disease, they do not directly indicate the same level of immediate risk as having a history of heart issues. For individuals with prior heart events, their heart has already shown signs of dysfunction, making them particularly vulnerable to cardiac arrest. Understanding this distinction is essential for recognizing which populations are most at risk and underscores the importance of monitoring and managing heart health proactively.