Highlights
- •Diabeticstreated with contemporary PCI still had a higher risk of adverse ischemic events compared to non-diabetics
- •The risk of bleeding and stent thrombosis was comparable amongst non-diabetics and diabetics.
- •Long-term ticagrelor monotherapy did not affect the outcomes of diabeticsfollowing percutaneous coronary intervention.
Abstract
Background and aims
Diabetes has been well recognized as a strong predictor for adverse outcomes after
percutaneous coronary intervention (PCI), however, studies in the era of drug-eluting
stent and potent P2Y12 inhibitors have shown conflicting results. We aimed to assess
ischemic and bleeding outcomes after contemporary PCI according to diabetic status.
Methods
We studied 15,957 patients undergoing PCI for stable or acute coronary syndrome in
the GLOBAL LEADERS study with known baseline diabetic status. The primary endpoint
was all-cause death or new Q-wave myocardial infarction at 2 years. The secondary
safety endpoint was major bleeding defined as bleeding academic research consortium
(BARC) type 3 or 5.
Results
A quarter of the study cohort were diabetic (4038/15,957), and these patients had
a significantly higher risk of primary endpoint at 2 years compared to non-diabetics
(adjusted hazard ratio [HR] 1.38; 95% confidence interval [CI] 1.17–1.63). The difference
was driven by a significantly higher risk of all-cause mortality at 2 years in diabetics
(adjusted HR 1.47, 95% CI 1.22–1.78). The risk of BARC 3 or 5 bleeding was comparable
between the two groups (adjusted HR 1.09, 95% CI 0.86–1.39). The antiplatelet strategy
(experimental versus reference strategy) had no significant effect on the rates of primary endpoint and
secondary safety endpoint at 2 years in patients with and without diabetes.
Conclusions
Diabetic patients had higher risk of ischemic events after PCI than non-diabetic patients,
whilst bleeding risk was comparable. The outcomes of diabetic patients following PCI
were not affected by the two different antiplatelet strategies.
Graphical abstract

Graphical Abstract
Keywords
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Article info
Publication history
Published online: January 15, 2020
Accepted:
January 9,
2020
Received in revised form:
November 25,
2019
Received:
August 15,
2019
Identification
Copyright
© 2020 Elsevier B.V. All rights reserved.