World J Cardiol. 2013 August 26; 5(8): 313-316.
Published online 2013 August 26. doi: 10.4330/wjc.v5.i8.313.
Longitudinal stent compression of everolimus-eluting stent: A report of 2 cases
Rajesh Vijayvergiya, Alok Kumar, Smit Shrivastava and Naveen K Kamana.
Rajesh Vijayvergiya, Alok Kumar, Smit Shrivastava, Naveen K Kamana, Department of Cardiology, Advanced Cardiac Centre, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
Author contributions: All authors were actively involved in management of the index cases.
Correspondence to: Dr. Rajesh Vijayvergiya, MD, DM, FSCAI, FISES, FACC, Associate Professor, Department of Cardiology, Advanced Cardiac Centre, Post Graduate Institute of Medical Education and Research, Sector 12, Chandigarh 160012, India. rajeshvijay999@hotmail.com
Telephone: +91-172-2756512 Fax: +91-172-2744401
Received March 19, 2013; Revised May 1, 2013; Accepted July 17, 2013;
Abstract
Second generation drug eluting stents (DES) have shown better safety and efficacy in comparison to first generation DES, because of thinner struts, nondurable polymers and coating with better anti-proliferative drugs. The newer DES with cobalt alloy base have demonstrated a greater trackability, deliverability, conformability, flexibility and radio-opacity. However, these thin strut stents have a downside of poor longitudinal axial strength, and therefore get easily deformed/compressed at their end with a slight trauma during exchange of various catheters. We hereby report two cases of “longitudinal stent compression (LSC)” of everolimus-eluting stent, which happened during percutaneous coronary intervention of right coronary artery. Both the cases were successfully managed with non-compliant balloon dilatation. Various reasons for LSC and its management are discussed in the article.
Keywords: Complication, Everolimus-eluting stent, Longitudinal stent compression, Percutaneous coronary intervention, Stent structure, Stent deformation