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COMPARATIVE STUDY
JOURNAL ARTICLE
OBSERVATIONAL STUDY
The Performance of CRUSADE and ACUITY Bleeding Risk Scores in Ticagrelor-Treated ACS Patients Who Underwent PCI.
Thrombosis and Haemostasis 2017 November
The performance of the CRUSADE (Can Rapid risk stratification of Unstable angina patients Suppress ADverse outcomes with Early implementation of the ACC/AHA guidelines) and ACUITY (Acute Catheterization and Urgent Intervention Triage strategy) risk scores for the prediction of major bleeding in ticagrelor-treated acute coronary syndrome (ACS) patients who underwent percutaneous coronary intervention (PCI) is unknown. The aim of the present study is to validate the performance of both scores in a contemporary Chinese cohort of ACS patients hospitalized for PCI and administrated with ticagrelor. From January 2013 to December 2014, a total of 629 ticagrelor-treated ACS patients who underwent PCI were recruited consecutively. The overall rate of major bleeding defined by the BARC (Bleeding Academic Research Consortium) criteria was 1.7%. This incidence increased with the risk category of both the CRUSADE (very low, 0.6%; low, 1.3%; moderate, 1.1%; high, 7.0%; and very high, 13.0%; p = 0.001) and the ACUITY score (low, 0.6%; moderate, 1.4%; high, 4.9%; and very high, 7.0%; p = 0.003). The CRUSADE score demonstrated adequate calibration and discriminatory capacity for the patients as a whole (HL- p [Hosmer-Lemeshow goodness-of-fit test p -value] >0.3; AUC [area under the curve]: 0.78), with the excellent performance in the subgroups of acute myocardial infarction, men, diabetes and those implanted with more than two DESs (AUC: 0.85, 0.80, 0.93 and 0.93, respectively). For the ACUITY score, adequate calibration and discriminatory capacity could be observed for the whole patients (HL- p > 0.3; AUC: 0.78), with excellent performance for the patients with diabetes or those implanted with more than two DESs (AUC: 0.90 and 0.97, respectively). In conclusion, both CRUSADE and ACUITY risk scores performed adequate discriminatory power for the prediction of major bleeding within 30 days in ticagrelor-treated ACS patients who underwent PCI.
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