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Ticagrelor and the risk of Staphylococcus aureus bacteraemia and other infections

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AIMS: To investigate the 1-year risks of Staphylococcus aureus bacteraemia (SAB), sepsis, and pneumonia in patients who underwent percutaneous coronary intervention and were treated with ticagrelor vs. clopidogrel.

METHODS AND RESULTS: In this nationwide observational cohort study, 26 606 patients who underwent urgent or emergent percutaneous coronary intervention (January 2011-December 2017) and initiated treatment with ticagrelor [N = 20 073 (75.5%); median age 64 years (25th-75th percentile 55-72 years); 74.8% men] or clopidogrel [N = 6533 (24.5%); median age 68 years (25th-75th percentile 58-77 years); 70.2% men] were identified using Danish nationwide registries. The 1-year standardized absolute risks of outcomes was calculated based on cause-specific Cox regression models, and average treatment effects between treatment groups were obtained as standardized differences in absolute 1-year risks. The absolute 1-year risk of SAB was 0.10% [95% confidence interval (CI), 0.05-0.15%] in the ticagrelor group and 0.29% (95% CI, 0.17-0.42%) in the clopidogrel group. Compared with clopidogrel, treatment with ticagrelor was associated with a significantly lower absolute 1-year risk of SAB [absolute risk difference -0.19% (95% CI, -0.32% to -0.05%), P value 0.006]. Likewise, treatment with ticagrelor was associated with a significantly lower absolute 1-year risk of sepsis [0.99% (95% CI, 0.83-1.14%) vs. 1.49% (95% CI, 1.17-1.80%); absolute risk difference -0.50% (95% CI, -0.86% to -0.14%), P value 0.007] and pneumonia [3.13% (95% CI, 2.86-3.39%) vs. 4.56% (95% CI, 4.03-5.08%); absolute risk difference -1.43% (95% CI, -2.03% to -0.82%), P value < 0.001] compared with clopidogrel.

CONCLUSION: Treatment with ticagrelor was associated with a significantly lower 1-year risk of SAB, sepsis, and pneumonia compared with clopidogrel.

Original languageEnglish
JournalEuropean heart journal. Cardiovascular pharmacotherapy
Volume8
Issue number1
Pages (from-to)13-19
Number of pages7
ISSN2055-6837
DOIs
Publication statusPublished - 5 Jan 2022

ID: 60682489