CBS 2019
CBSMD教育中心
中 文

DAPT Duration

Abstract

Recommended Article

Benefit-risk profile of extended dual antiplatelet therapy beyond 1 year in patients with high risk of ischemic or bleeding events after PCI Ticagrelor With or Without Aspirin in High-Risk Patients With Diabetes Mellitus Undergoing Percutaneous Coronary Intervention Optimal duration of dual antiplatelet therapy after drug-eluting stent implantation: a randomized, controlled trial. Sex-Based Outcomes in Patients With a High Bleeding Risk After Percutaneous Coronary Intervention and 1-Month Dual Antiplatelet Therapy: A Secondary Analysis of the LEADERS FREE Randomized Clinical Trial Efficacy and Safety of Ticagrelor Monotherapy in Patients Undergoing Multivessel PCI Antiplatelet therapy in patients with myocardial infarction without obstructive coronary artery disease Ticagrelor with or without Aspirin in High-Risk Patients after PCI A Platelet Function Modulator of Thrombin Activation Is Causally Linked to Cardiovascular Disease and Affects PAR4 Receptor Signaling

Clinical TrialSeptember 15, 2017, Volume 243, Pages 132–139

JOURNAL:Int J Cardiol. Article Link

Patterns and associations between DAPT cessation and 2-year clinical outcomes in left main/proximal LAD versus other PCI: Results from the Patterns of Non-Adherence to Dual Antiplatelet Therapy in Stented Patients (PARIS)

Chandrasekhar J, Baber U, Mehran R et al. Keywords: LM/pLAD PCI; DAPT cessation; MACE

ABSTRACT

OBJECTIVES - Percutaneous coronary intervention (PCI) of the left main (LM) or proximal left anterior descending artery (pLAD) is considered high-risk as these segments subtend substantial left ventricular myocardial area. We assessed the patterns and associations between dual antiplatelet therapy (DAPT) cessation and 2-year outcomes in LM/pLAD vs. other PCI from the all-comer PARIS registry.


METHODS - Two-year major adverse cardiovascular events (MACE) were a composite of cardiac death, myocardial infarction, definite/probable stent thrombosis or target lesion revascularization. DAPT cessation was predefined as physician-guided permanent discontinuation, temporary interruption, or non-recommended disruption due to non-compliance or bleeding.


RESULTS - Of the study population (n=5018), 25.0% (n=1252) underwent LM/pLAD PCI and 75.0% (n=3766) PCI to other segments. Compared to others, LM/pLAD patients presented with fewer comorbidities, less frequent acute coronary syndromes but more multivessel and bifurcation disease treated with greater stent lengths. Two-year adjusted risk of MACE (11.4% vs. 11.6%; HR 1.10, 95% CI 0.90-1.34, p=0.36) was similar between LM/pLAD vs. other patients. DAPT discontinuation was significantly higher (43.3% vs. 39.4%, p=0.01) in LM/pLAD patients with borderline significance for lower disruption (10.0% vs. 14.7%, p=0.059) compared to other patients. DAPT discontinuation was not associated with higher risk of MACE in LM/pLAD (HR 0.65, 95% CI 0.34-1.25) or other PCI groups (HR 0.67, 95% CI 0.47-0.95).


CONCLUSIONS - LM/pLAD PCI was not an independent predictor of 2-year MACE. Compared to other PCI, patients undergoing LM/pLAD PCI had higher rates of physician recommended DAPT discontinuation, however, discontinuation did not result in greater adverse events.