RT Journal Article SR Electronic T1 Polymer-free sirolimus-eluting stents in a large-scale all-comers population JF Open Heart JO Open Heart FD British Cardiovascular Society SP e000592 DO 10.1136/openhrt-2017-000592 VO 4 IS 2 A1 Florian Krackhardt A1 Viktor Kočka A1 Matthias W. Waliszewski A1 Andreas Utech A1 Meik Lustermann A1 Martin Hudec A1 Martin Studenčan A1 Markus Schwefer A1 Jiangtao Yu A1 Myung Ho Jeong A1 Taehoon Ahn A1 Wan Azman Wan Ahmad A1 Michael Boxberger A1 André Schneider A1 Matthias Leschke YR 2017 UL http://openheart.bmj.com/content/4/2/e000592.abstract AB Objective The objective of this study was to assess the safety and efficacy of a polymer-free sirolimus coated, ultrathin strut drug-eluting stent (PF-SES) in an unselected patient population with a focus on acute coronary syndrome (ACS). Furthermore, stable coronary artery disease (CAD) with short (≤6 months) versus long (>6 months) dual antiplatelet therapy (DAPT) were also studied.Methods Patients who received PF-SES were investigated in an unselected large-scale international, single-armed, multicenter, ‘all comers’ observational study. The primary endpoint was the 9-month target lesion revascularisation (TLR) rate, whereas secondary endpoints included the 9-month major adverse cardiac events (MACE) and procedural success rates. A priori defined subgroups such as patients with ACS, diabetes, lesion subsets and procedural characteristics relative to DAPT were investigated.Results A total of 2877 patients of whom 1084 had ACS were treated with PF-SES (1.31±0.75 stents per patient). At 9 months, the accumulated overall TLR rate was 2.3% (58/2513). There was no significant difference between ACS and stable CAD (2.6% vs 2.1%, p=0.389). However, the overall MACE rate was 4.3% (108/2513) with a higher rate in patients with ACS when compared with the stable CAD subgroup (6.1%, 58/947 vs 3.2%, 50/1566, p<0.001).Conclusions PF-SES angioplasty is safe and effective in the daily clinical routine with low rates of TLR and MACE in an unselected patient population. Our data are in agreement with prior clinical findings that extended DAPT duration beyond 6 months do not improve clinical outcomes in patients with stable CAD (ClinicalTrials.gov Identifier NCT02629575).Trial registration number NCT02629575.