Optimal stent expansion by stent balloon multiple inflation at nominal pressure in resistant lesions: a new technique

Introduction: This study aimed to evaluate the effects of four-time inflation of the stent balloon at nominal pressure on optimal stent expansion in resistant lesions

---

Materials and Methods: This interventional study was conducted on 39 patients with coronary artery lesions, in whom Zotarolimus-eluting stents [N=20], Paclitaxel-eluting stents [N=11] and other stents [N=8] were deployed four times at nominal inflation pressure and increased inflation times [5, 15, 30 and 45 seconds]. After the deployments, enhanced stent visualization imaging technique [IC stent] was used to assess stent placement and artery expansion

---

Results: In this study, early success rate was estimated at 79.5% using the enhanced stent visualization imaging technique. In addition, major adverse cardiac event [MACE] was determined at 2.6%. Also, conventional methods resulted in lower success rate and higher MACE in resistant lesions

---

Conclusion: According to the results of this study, four-time stent balloon inflation at nominal pressure could allow adequate stent expansion in resistant lesions leading to lower MACE