Intracoronary Stenting for Restenosis: Long-Term Follow-up: A Single Center Experience

Area of Science:

• Cardiovascular Medicine
• Interventional Cardiology
• Biomedical Engineering

Background:

• Restenosis following angioplasty is a significant clinical challenge.
• Coronary artery stenting has emerged as a treatment option for restenosis.
• Evaluating the long-term efficacy and safety of coronary stenting is crucial.

Purpose of the Study:

• To assess the long-term outcomes of coronary stent implantation for treating restenosis.
• To evaluate the safety and effectiveness of stenting in native coronary arteries and venous grafts.

Main Methods:

• A cohort of 106 patients received 113 coronary stents (Wallstents, Palmaz-Schatz, Wiktor) for restenosis.
• Stents were implanted in native coronary arteries (86 cases) and venous grafts (20 cases).
• Clinical and angiographic follow-up was conducted at 6 months, and long-term follow-up extended to an estimated 104 months.

Main Results:

• Stent implantation successfully increased minimal lumen diameter in both native arteries and venous grafts.
• At 6 months, clinical events occurred in 20% of patients (including deaths, myocardial infarctions, and re-angioplasty).
• Long-term follow-up (mean 65 months) showed sustained efficacy, with 70% of patients remaining event-free and a 95% survival rate.

Conclusions:

• Coronary stent implantation is a valid and effective strategy for treating restenosis after conventional balloon angioplasty.
• The procedure demonstrates favorable long-term clinical and angiographic results.
• Stenting offers a durable solution for patients with restenosis in both native coronary arteries and venous grafts.