Validation of High-Risk Features for Stent-Related Ischemic Events as Endorsed by the 2017 DAPT Guidelines.

Objectives: This study sought to validate European Society of Cardiology guideline-endorsed high-risk features of stent-related recurrent ischemic events for the prediction of ischemic and bleeding outcomes including a stratification according to the PRECISE-DAPT score estimated bleeding risk.
Background: The 2017 European Society of Cardiology-focused update on dual-antiplatelet therapy endorsed high-risk features of stent-related recurrent ischemic events. Because patients with high ischemic risk also have an increased bleeding risk, appropriate risk stratification for ischemic and bleeding events is crucial.
Methods: Between January 2009 and December 2015, a total of 10,236 consecutive patients undergoing clinically indicated percutaneous coronary intervention were prospectively included in the Bern PCI Registry. Guideline-endorsed high-risk features were retrospectively assessed. The primary ischemic endpoint was device-oriented composite endpoint (DOCE) (cardiac death, target-vessel myocardial infarction, and target lesion revascularization) at 1 year, and the primary bleeding endpoint was Bleeding Academic Research Consortium (BARC) 3-5 at 1 year.
Results: A total of 5,323 (52.0%) patients had at least 1 high-risk feature. Among patients with high-risk features, DOCE (12.3% vs. 5.5%; p < 0.001) and BARC 3-5 bleeding (4.9% vs. 2.2%; p < 0.001) occurred more frequently compared with those without. There was a graded risk increase for DOCE (0: 5.5%; 1 to 2: 11.3%; and ≥3: 16.7%; p < 0.001) and BARC 3-5 bleeding (0: 2.2%; 1 to 2: 4.5%; and ≥3: 6.6%; p < 0.001) as the number of high-risk features increased. High-PRECISE-DAPT score (≥25) was associated with an increased risk of DOCE and BARC 3-5 bleeding, irrespective of number of high-risk features.
Conclusions: The European Society of Cardiology guideline-endorsed high-risk features were associated with increased ischemic and bleeding risks following percutaneous coronary intervention in routine clinical practice. (CARDIOBASE Bern PCI Registry; NCT02241291).
(Copyright © 2019 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.)