About this trial
To assess the influence of superficial calcium on the early endothelialization (1 month) of the struts of the Xience Skypoint stent (comparing struts with underlying superficial calcium to struts without underlying calcification)
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Patients aged ≥ 18 years old and;
Patients with clinical indication for stent implantation and;
Patients with OCT evaluation that shows the presence of calcified tissue underlying the lumen surface, fulfilling the definition of superficial calcium (The distance from the abluminal point of the calcium to the luminal surface is less than 500 μm, in a perpendicular axis to the vessel luminal surface. When referred to the stent struts it will be assumed that such distance of less than 500 μm will be measured between the centre of the abluminal surface of the strut and the abluminal point of the calcium, in the same perpendicular axis).and;
Patients with good quality baseline OCT evaluation as judged by the investigators and;
Disqualifiers
Patients with current ST-elevation Myocardial Infarction (STEMI).
Patients with non-native lesion: stent restenosis, segment previously treated with drug eluting balloon, arterial or saphenous vein grafts.
Glomerular Filtration Rate (GFR)< 30 ml/min/1.72m2
Contrast allergy
Trial design
Single group
Treatments tested in this trial
Xience Skypoint stent over calcified coronary lesions
DevicePatients with Xience Skypoint stent implanted after OCT assesment of calcification
Treatment groups
Trial outcomes
Primary outcomes
Mean strut coverage thickness of stent
Mean strut coverage thickness (μ) of the stent struts located over superficial calcium will be compared to the mean strut coverage thickness of the struts in the calcium free frames by Optical Coherence Tomography (OCT).
Secondary outcomes
Proportion of covered struts
proportion of covered struts (%) lying over superficial calcium compared to the proportion of covered struts in calcium free frames
Proportion of uncovered struts
Proportion of uncovered struts by OCT at 1 month comparing calcified and non-calcified struts by OCT
Proportion of acute post PCI malapposition struts
Proportion of acute post PCI malapposition comparing calcified and non-calcified struts by OCT
Proportion of malapposed struts
Proportion of malapposed struts comparing calcified and non-calcified struts by OCT at 1 month
Sponsors and contacts
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