Influence of stent design on the immediate and long-term outcome after coronary stent implantation: a comparison of sinusoidal-ring and tube stents

To evaluate the influence of stent design on the immediate and long-term ou tcome after coronary stent implantation, we retrospectively reviewed 151 pa tients (170 lesions) who underwent coronary stent implantation. The patient s were divided into two groups according to the stent design, namely, the s inusoidal-ring group (GFX stent and AVE S670 stent; 64 patients, 66 lesions ) and the tube group (Multi-Link stent and NIR stent; 87 patients, 104 lesi ons). The indication for coronary stent implantation was only provisional a nd additional stenting was considered in the presence of suboptimal results (residual stenosis > 30%) or of a large dissection after balloon angioplas ty. Angiographically confirmed success was achieved in all patients. No maj or adverse cardiac events were documented in either group during the hospit alization period. There were no cases of death nor of Q-wave myocardial inf arction in either group during the follow-up period. The restenosis and tar get lesion revascularization (TLR) rates were 24.1% and 15.3% in the sinuso idal-ring group, and 20.2% and 12.6% in the tube group, respectively. The r estenosis and TLR rates were similar in both groups. In conclusion, an infl uence of stent design on the immediate and long-term outcome after coronary stent implantation was not observed using sinusoidal-ring and tube stents.