Key result
Non-compliant balloon dilatation successfully manages longitudinal everolimus-eluting stent compression in two RCA cases.
Why the study?
Thin strut second generation everolimus-eluting stents have poor longitudinal axial strength and are prone to deformation during catheter exchanges in PCI.
Case Report (n=2)
Highlights the risk of longitudinal stent compression with newer thin-strut everolimus-eluting stents and demonstrates successful management using non-compliant balloon dilatation.
Alerts clinicians to longitudinal compression risk with thin-strut stents; leaves open incidence and prevention strategies.
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.
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Rajesh Vijayvergiya (2013) conducted a case report in Longitudinal stent compression during percutaneous coronary intervention (n=2). Everolimus-eluting stent was evaluated on Longitudinal stent compression and its management. Longitudinal stent compression of everolimus-eluting stents occurred during right coronary artery intervention in two cases, both successfully managed with non-compliant balloon dilatation.
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