Gomez-Lara, JosepOyarzabal, LoretoOrtega-Paz, LuisBrugaletta, SalvatoreRomaguera, RafaelSalvatella Giralt, NeusRoure, GerardRivero, FernandoFuentes, LaraAlfonso, FernandoOtaegui, ImanolVandeloo, BertVaquerizo Montilla, BeatrizSabaté, ManelComín Colet, JosepGomez-Hospital, Joan-Antoni2022-06-232022-06-232021Gomez-Lara J, Oyarzabal L, Ortega-Paz L, Brugaletta S, Romaguera R, Salvatella N, et al. Coronary endothelium-dependent vasomotor function after drug-eluting stent and bioresorbable scaffold implantation. J Am Heart Assoc. 2021 Nov 16; 10(22): e022123. DOI: 10.1161/JAHA.121.0221232047-9980http://hdl.handle.net/10230/53569Background Early generation drug-eluting stents (DESs) showed a high grade of coronary endothelial dysfunction that was attributed to lack of stent reendothelialization. Endothelium-dependent vasomotor response of current DESs and bioresorbable scaffolds (BRSs) remains unknown. This study sought to assess the device-related endothelial function of current devices and to correlate neointima healing with endothelial function. Methods and Results A total of 206 patients from 4 randomized trials treated with the durable-polymer everolimus-eluting Xience (n=44), bioresorbable-polymer sirolimus-eluting Orsiro (n=35), polymer-free biolimus-eluting Biofreedom (n=24), bioactive endothelial-progenitor cell-capturing sirolimus-eluting Combo DES (n=25), polymer-based everolimus-eluting Absorb (n=44), and Mg-based sirolimus-eluting Magmaris BRS (n=34) underwent endothelium-dependent vasomotor tests and optical coherence tomography imaging, as per protocol, at follow-up. Crude vasomotor responses of distal segments to low-dose acetylcholine (10-6 mol/L) were different between groups: bioresorbablepolymer DEShad the worst (-8.4%±12.6%) and durable-polymer DES had the most physiologic (-0.4%±11.8%; P=0.014). High-dose acetylcholine (10-4 mol/L) showed similar responses between groups (ranging from -10.8%±11.6% to -18.1%±15.4%; P=0.229). Device healing was different between devices. Uncovered struts ranged from 6.3%±7.1% (bioresorbable-polymer DES) to 2.5%±4.5% (bioactive DES; P=0.056). In multivariate models, endothelium-dependent vasomotor response was associated with age, bioresorbable-polymer DES, and angiographic lumen loss, but not with strut coverage nor plaque type. Endothelial dysfunction (defined as ≥4% vasoconstriction) was observed in 46.6% of patients with low-dose and 68.9% with high-dose acetylcholine, without differences between groups. Conclusions At follow-up, endothelial dysfunction was frequently observed in distal segments treated with current stents without remarkable differences between devices. Although neointima healing was different between devices, poor healing was not associated with endothelial dysfunction.application/pdfengCopyright © 2021 The Authors. Published on behalf of the American Heart Association, Inc., by Wiley. This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.info:eu-repo/semantics/articlehttp://dx.doi.org/10.1161/JAHA.121.022123ST‐segment–elevation myocardial infarctionDrug‐eluting stentsEndothelial dysfunctionOptical coherence tomographyinfo:eu-repo/semantics/openAccess