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[Correspondence] The ABC risk score for patients with atrial fibrillation

The study by Ziad Hijazi and colleagues (June 4, p 2302)1 provides a comprehensive validation of the age, biomarkers, and clinical history (ABC)-bleeding score, using age, three biomarkers (haemoglobin, cardiac troponin T, and GDF-15), and clinical history of bleeding to predict major bleeding events in anticoagulated patients with atrial fibrillation. Although the clinical usefulness of this approach to tailor stroke and bleeding risk in individual patients awaits further validation in real-world cohorts, the study by Hijazi and colleagues1 is a great leap forward in precision medicine and risk stratification in atrial fibrillation.

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