ORIGINAL ARTICLES   

Minerva Cardioangiologica 2013 June;61(3):313-22

Copyright © 2013 EDIZIONI MINERVA MEDICA

language: English

Early vascular healing with biodegradable polymer coated sirolimus-eluting coronary stent implantation: assessed by optical coherence tomography results at 4-month follow-up

Abhyankar A. ¹, Prajapati J. ², Reddy S. ³, Reddy S. ⁴ ✉

¹ Shree B.D. Mehta Mahavir Heart Institute Athwagate, Surat, India; ² U.N. Mehta Institute of Cardiology and Research Centre Ahmedabad, India; ³ Sunshine Hospitals, Penderghast Road, Secunderabad, India; ⁴ Malla Reddy Narayana Hrudayalaya Hospital, Jeedimetla, Hyderabad, India

Aim: The aim of this study was to evaluate the strut apposition and neointimal coverage of Supralimus-Core stent struts at 4 months after implantation using optical coherence tomography (OCT).
Methods: The Supralimus-Core OCT study is a retrospective, single-center study evaluating strut apposition and neointimal coverage with OCT at 4 months after stent implantation. A total of 12 patients, who had 15 stents implanted were included in the study. The OCT was obtained using a C7-XR FD-OCT (frequency-domain OCT) intravascular imaging system. Strut apposition, neointimal hyperplasia (NIH) thickness and stent coverage on each stent strut were evaluated.
Results: A total of 2870 struts and 1950 frames were analyzed from 15 stents. Average stent length was 29.3 mm. Average reference vessel diameter was 2.64 mm. Among 12 patients, 3 (25.0%) patients were with diabetes, 4 (26.7%) type B2 and 10 (66.7%) type C lesions. The apposed and covered struts were 2787 (97.11%), whereas malapposed and covered struts were 3 (0.10%), apposed and uncovered 49 (1.71%) and malapposed and uncovered 31 (1.08%). Mean NIH thickness was 155.1±55.2 µm.
Conclusion: The present study suggests that Supralimus-Core stent has a favorable vascular healing pattern at 4 months after stent implantation in terms of stent-strut coverage and strut apposition. This information indicates that the Supralimus-Core stent is a promising solution for decreasing late stent restenosis and preventing stent thrombosis.