What is the primary function of a cardiac stent?

The primary function of a cardiac stent is to open a blockage in the coronary artery. Cardiac stents are small tube-like devices that are inserted into narrowed or blocked coronary arteries, usually following angioplasty, which is a procedure that uses a balloon to widen the artery. The stent remains in place to help keep the artery open, allowing for improved blood flow to the heart muscle.

By preventing the artery from narrowing again, stents help reduce the risk of heart attacks and improve overall heart function. This is particularly crucial for patients suffering from conditions such as coronary artery disease, where the buildup of plaque can obstruct blood flow. The other options, such as increasing heart rate, strengthening heart muscles, or measuring blood pressure, do not align with the specific role of a stent in coronary artery management.