Abstract
Background
Tremendous efforts have been made to establish the concept of vascular restoration therapy with a fully bioresorbable scaffold for coronary artery disease. With an improved scaffold design and technologies, the novel NeoVas scaffold has shown promising clinical performance at 6 months follow-up.
Objective
The aim of this study was to investigate the 1 year clinical outcomes and multislice computed tomography (MSCT) angiographic results after implantation of the NeoVas scaffold in patients with single de novo coronary artery lesions.
Methods
The NeoVas first-in-man study was a prospective, two-center, single-arm study enrolling 31 patients who were eligible for the treatment. The composite endpoint of target lesion failure (TLF)—defined as cardiac death, target vessel myocardial infarction, and clinically indicated target lesion revascularization (TLR)—was assessed. Of the 31 patients scheduled for 1 year clinical follow-up, 29 patients received MSCT examinations.
Results
At 1 year follow-up, there was only 1 (3.2%) TLF, attributed to 1 patient who suffered ischemia-driven TLR at 181 days postprocedure. No cardiac deaths or scaffold thrombosis were observed. MSCT analysis demonstrated excellent vessel patency, with a median in-scaffold lumen area of 10.6 mm2 (interquartile range [IQR]: 8.2–11.7 mm2) and a minimal lumen diameter of 2.7 mm (IQR: 2.4–3.0 mm).
Conclusions
This study demonstrated the safety and efficacy of the NeoVas scaffold for patients with single de novo coronary artery lesions at 1 year of follow-up. Noninvasive MSCT data confirmed vessel patency and the maintenance of vessel dimensions following implantation of the NeoVas bioresorbable sirolimus-eluting scaffold.
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