Acute and Long-term Clinical Outcomes after Coronary Stenting of CrossFlex, GFX and NIR Stents

ABSTRACT

BACKGROUND AND OBJECTIVES: New coronary stents are displacing for the broader array of lesions, but disagreement remains which device is more advantageous and whether design determines outcomes. The present study investigates the impact of stent design on early and one year outcomes. MATERIALS AND METHODS: A retrospective analysis of 350 patients with 378 lesions (60+/-10 years, 265 male), that underwent 181 CrossFlex, 95 GFX, 102 NIR coronary stentings at Chonnam National University Hospital from January 1996 to December 1999, was performed. Early procedural success rates, major adverse cardiac event (MACE) within one year and follow-up angiographic findings in 227 patients (240 lesions, follow-up duration=8.1+/-5.9 months) were compared among three groups. METHODS: 1) There were no significant differences in the baseline clinical and angiographic characteristics except the lesion length (CrossFlex GFX NIR=11.5+/-5.2 14.5+/-6.7 13.9+/-5.7 mm, p<0.05). 2) There were no significant differences in early angiographic success rates among three groups (CrossFlex 98.9%, GFX 100.0%, NIR 99.0%). 3) There were no significant differences in late luminal loss (CrossFlex GFX NIR=1.03+/-0.69 1.11+/-0.75 1.09+/-0.70 mm, p=NS), restenosis rates (CrossFlex 30.6%, GFX 30.8%, NIR 28.4%, p=NS) and MACE (CrossFlex GFX NIR=27.6% 29.5% 27.5%, p=NS) among three groups. CONCLUSION: Despite different lesions length, the early and late angiographic outcomes, and MACE within one year were not different among three different types of coronary stents.