Stent implantation is a minimally invasive, non-surgical procedure performed to open narrowed coronary arteries, which carry oxygen-rich blood to the heart, and to optimize blood flow. This procedure is typically carried out in conjunction with balloon angioplasty. During the procedure, a thin catheter is inserted through a blood vessel in the groin or arm. The catheter is carefully advanced to the narrowed arterial segment, and a balloon at its tip is inflated to widen the vessel pathway. Subsequently, a mesh-like stent is expanded to the appropriate vessel diameter and permanently placed within the arterial wall. The stent ensures the vessel remains open, sustaining blood flow, and integrates with the vessel tissue over time. The balloon is then deflated, and the catheter is withdrawn. The access site is usually closed with a small suture or a special bandage. Stent implantation is a preferred treatment method typically chosen when narrowing or blockage is detected in one or two coronary arteries. In more complex cases involving more than two coronary arteries, alternative treatment options such as coronary artery bypass surgery may be considered.