Author + information
- Haibo Jia,
- Ning Li,
- Xuedong Wang,
- Koji Kato,
- Taishi Yonetsu,
- Sining Hu,
- Jinwei Tian,
- Shaosong Zhang,
- Jingbo Hou,
- Bo Yu and
- Ik–Kyung Jang
Percutaneous treatment of chronic total occlusion (CTO) has been increasingly adopted in recent years. However, longer–term vascular response has not been reported.
To investigate vascular response to sirolimus–eluting stent (SES) in CTO by optical coherence tomography.
Fifty nine patients (21 patients/29 stents with CTO and 38/52 with non–CTO lesions) who underwent OCT imaging at 6 months after SES implantation were included in the analysis.
The CTO group, compared to the non–CTO group, had higher incidence of malapposition (27.6% vs. 7.7 %, p= 0.037), uncovered struts (> 3 uncovered cross sections: 46.8% vs. 11.5%, p=0.0007), and protruding struts (71.8% vs. 44.2%, p=0.038). In–stent thrombus was detected in 3 of 32 (9.3%) stents in CTO and 1 of 52 (1.9%) stents in non–CTO lesions (p=0.303). No adverse clinical event occurred in both groups.
CTO lesions are associated with higher incidence of late stent malapposition and tissue protrusion, and lower neointimal coverage at 6 months.
Poster Sessions, Expo North
Saturday, March 09, 2013, 3:45 p.m.–4:30 p.m.
Session Title: Chronic Total Occlusions
Abstract Category: 44. TCT@ACC–i2: Coronary Intervention, CTO
Presentation Number: 2103–235
- 2013 American College of Cardiology Foundation