What is a common consequence of untreated unstable angina?

Untreated unstable angina is characterized by increased frequency, duration, and intensity of chest pain, indicating that the heart muscle is not receiving enough blood supply. This condition represents a critical stage in the spectrum of coronary artery disease. Without intervention, the risk of myocardial infarction, or heart attack, significantly increases.

When an individual experiences unstable angina, it often signals that the atherosclerotic plaque in the coronary arteries is either unstable or has ruptured, potentially leading to blood clots. These clots can occlude blood flow to a portion of the heart muscle, resulting in ischemia and, ultimately, myocardial cell death if not promptly treated.

While hypertension, heart failure, and stroke can also occur in patients with coronary artery disease, they are not direct and immediate consequences of untreated unstable angina. Instead, they may develop later as a result of ongoing cardiovascular problems. However, the acute threat posed by untreated unstable angina primarily leads to myocardial infarction if corrective measures are not taken swiftly, such as medication or surgical interventions. Understanding this critical relationship highlights the importance of recognizing and treating unstable angina effectively to prevent severe outcomes.