A journal article was submitted for review titled: elastic stent recoil in coronary total occlusions: comparison of durable-polymer zotarolimus eluting stent and ultrathin strut bioabsorbable-polymer sirolimus eluting stent.The aim of the article was to compare stent recoil between zotarolimus-eluting stents (zes) and sirolimus-eluting stents (ses).Between january 2017 and november 2019 123 patients with cto undergoing pci were evaluated.128 lesions were treated zes (n=67) and ses (n=61).The patients being treated with the zes stent received resolute onyx drug eluting stents and those receiving ses stents were treated with a non medtronic stent.The lesions treated had chronic total occlusions (ctos) and included moderately and severely calcified lesions with tortuosity in the right coronary artery, left coronary artery, circumflex coronary artery and intermediate branch.Stents were post dilated using nc balloons.32% of the stents was expanded beyond nominal size, but none of them was overexpanded by >20% of the nominal size.Complications that occurred during the zes procedures included: perforation, acute thrombosis, pericardiocentesis and dissection.Stent recoil occurred in both groups but was more frequently observed in the ses group.In the case of stent overexpansion, the resolute onyx stent also showed a lower increase in struts crown angle deformation compared to the ses stent.
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