Abstract
BackgroundTicagrelor or prasugrel are recommended to reduce ischemic events in patients with acute myocardial infarction (AMI) undergoing percutaneous coronary intervention (PCI). However, in clinical practice, patients are often switched from a potent P2Y12 inhibitor to clopidogrel prior to or at discharge (‘de-escalation’). We sought to assess the incidence and predictors of de-escalation. MethodsConsecutive patients who received either a ticagrelor or prasugrel loading dose for AMI PCI at two tertiary centers between Jan 2015–Mar 2019 who survived to discharge were included. Data were obtained from the electronic health record and institutional NCDR CathPCI data. Patients who were de-escalated to clopidogrel were compared with those who remained on potent P2Y12 inhibitors through the time of discharge. ResultsOf the1818 patients in the cohort, 1146 (63%) were de-escalated. Patients in the de-escalation group were older, more often Black, had lower prevalence of co-morbidities, less often had private insurance, and had less complex PCI. After adjustment, older age remained positively associated (OR 1.2, CI 1.08–1.34, p = .001) and Caucasian race (OR 0.5, CI 0.33–0.77, p = .002), prior MI (OR 0.7, CI 0.5–0.97, p = .032), bifurcation lesion (OR 0.71, CI 0.53–0.95, p = .019), and greater number of stents (OR 0.82, CI 0.75–0.91, p = .0001) were negatively associated with de-escalation. In de-escalated patients, the rationale was not documented in 75.9% of cases. ConclusionsDe-escalation occurred frequently in patients with AMI and was associated with both non-clinical and clinical factors. Medical decision making was poorly documented and represent an area for improvement.
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