Author + information
- Received November 3, 2010
- Accepted November 16, 2010
- Published online May 1, 2011.
- Nehiro Kuriyama, MD⁎,
- Yoshio Kobayashi, MD†,⁎ (, )
- Masashi Yamaguchi, PhD‡ and
- Yoshisato Shibata, MD⁎
- ↵⁎Reprint requests and correspondence:
Dr. Yoshio Kobayashi, Department of Interventional Cardiology, Chiba University, Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba 260-8670, Japan
A 78-year-old woman with an 80% stenosis with moderate calcification in the mid left circumflex artery (Figs. 1A and 1B) was referred for coronary angioplasty. Delivery of a 28-mm everolimus-eluting stent (EES) was initially attempted. However, it would not advance to the lesion (Fig. 1C). Rotational atherectomy was performed (Fig. 1D). Another 28-mm EES was delivered to the lesion without significant resistance (Fig. 1E). The EES was drawn out to examine damage to its polymer. Another 28-mm EES was deployed. The final angiogram showed a good result (Fig. 1F). Scanning electron microscopy demonstrated damage to the polymer of the EES that would not advance to the lesion (Figs. 2A to 2D). By contrast, there was no damage to the polymer of the EES that was delivered without significant resistance after rotational atherectomy (Fig. 2E).
Even with EES, damage to its polymer may occur when it is delivered through a calcified coronary artery. In this situation, rotational atherectomy may be useful to prevent damage to its polymer.
The authors have reported that they have no relationships to disclose.
- Received November 3, 2010.
- Accepted November 16, 2010.
- American College of Cardiology Foundation