Author(s)

Kenji Sadamatsu, Keiki Yoshida, Yuya Yoshidomi, Yasuaki Koga, Kaori Amari, Tomotake Tokunou

Department of Cardiology, Saga-ken Medical Centre Koseikan, Saga, Japan.

Purpose: The aim of this study was to determine the influence of lesion preparation using the dual wire scoring balloon on stent expansion and long-term outcomes. Methods: Forty-six consecutive de novo lesions treated with a single >2.5 mm drug-eluting stent under intravascular ultrasound guidance, using two implantation strategies, were randomly assigned to: 1) pre-dilation with a non-compliant balloon (NC group; n = 23) or 2) pre-dilation with a dual wire scoring balloon (DS group; n = 23). Results: Although the balloon size and the maximal dilation pressure for pre-dilatation was larger (3.33 ± 0.28 vs 3.09 ± 0.33 mm, p = 0.01) and higher (11.6 ± 3.2 vs 8.6 ± 2.7 atm, p < 0.01) in the NC group than the DS group, there were no significant differences in the stent expansion. Quantitative coronary angiography at the follow-up demonstrated a smaller in-stent late loss (0.71 ± 0.63 mm vs 0.23 ± 0.52 mm, p = 0.03) in the DS group. During the long-term follow-up, there were no significant differences in the major adverse cardiac event rates. Conclusions: Lesion preparation with a dual wire scoring balloon prior to drug-eluting stent implantation might therefore be a more feasible strategy than that using a non-compliant balloon.

Intravascular Ultrasound; Stent; Coronary Artery Disease; Restenosis; Angioplasty

Sadamatsu, K. , Yoshida, K. , Yoshidomi, Y. , Koga, Y. , Amari, K. and Tokunou, T. (2013) Comparison of pre-dilation with a non-compliant balloon versus a dual wire scoring balloon for coronary stenting. World Journal of Cardiovascular Diseases, 3, 395-400. doi: 10.4236/wjcd.2013.36061.