1,720,968 research outputs found
Five Years on Dual-Antiplatelet Therapy DES Thrombosis After Clopidogrel Withdrawal
Drug-eluting stents (DES) have a moderately higher incidence of stent thrombosis compared to bare metal stents (BMS) and very late DES thrombosis has been frequently described. We report a case of a 66 year-old male who experienced very late stent thrombosis at 5 years after paclitaxel-eluting stent (PES) implantation and 3 days after clopidogrel withdrawal. Intravascular ultrasound (IVUS) performed during the index procedure showed that the previously implanted PES was undersized. Since the patient could not take clopidogrel, we treated him with only a noncompliant balloon (3.0 x 15 mm) with optimal expansion as confirmed by IVUS. This case report describes a patient who continued clopidogrel treatment for 5 years and was probably protected from a procedural failure. During the current hospitalization, the patient was found to be a responder to clopidogrel after a platelet function assessment with Multiplate (Dynabyte Informationssysteme GmbH, Munich, Germany)
Results of the self-expandable BA9 stent for treatment of large angle coronary bifur-cation.
Valore prognostico dell'ipossiemia nei pazienti con sindrome coronarica acuta in Killip I
Prasugrel or ticagrelor in st-segment-elevation myocardial infarction patients with diabetes mellitus
Prasugrel or ticagrelor is recommended in patients with ST-segment–elevation myocardial infarction (STEMI). Patients with diabetes mellitus are characterized by enhanced platelet reactivity (PR) and a reduced response to oral antiplatelet agents.1 The RESET 2D trial (Prasugrel vs Ticagrelor in ST-Elevation Myocardial Infarction Patients With Diabetes Mellitus) was a prospective, randomized, pharmacodynamic study evaluating platelet inhibition by loading dose (LD) of ticagrelor or prasugrel in P2Y12-naïve patients with diabetes mellitus presenting with STEMI. The local ethics committee approved the study (ClinicalTrials.gov NCT01531114)
Single-staged compared with multi-staged PCI in multivessel NSTEMI patients. the SMILE trial
Background: A lack of clarity exists about the role of complete coronary revascularization in patients presenting with non-ST-segment elevation myocardial infarction.
Objectives: The aim of our study was to compare long-term outcomes in terms of major adverse cardiovascular and cerebrovascular events of 2 different complete coronary revascularization strategies in patients with non-ST-segment elevation myocardial infarction and multivessel coronary artery disease: 1-stage percutaneous coronary intervention (1S-PCI) during the index procedure versus multistage percutaneous coronary intervention (MS-PCI) complete coronary revascularization during the index hospitalization.
Methods: In the SMILE (Impact of Different Treatment in Multivessel Non ST Elevation Myocardial Infarction Patients: One Stage Versus Multistaged Percutaneous Coronary Intervention) trial, 584 patients were randomly assigned in a 1:1 manner to 1S-PCI or MS-PCI. The primary study endpoint was the incidence of major adverse cardiovascular and cerebrovascular events, which were defined as cardiac death, death, reinfarction, rehospitalization for unstable angina, repeat coronary revascularization (target vessel revascularization), and stroke at 1 year.
Results: The occurrence of the primary endpoint was significantly lower in the 1-stage group (1S-PCI: n = 36 [13.63%] vs. MS-PCI: n = 61 [23.19%]; hazard ratio [HR]: 0.549 [95% confidence interval (CI): 0.363 to 0.828]; p = 0.004). The 1-year rate of target vessel revascularization was significantly higher in the MS-PCI group (1S-PCI: n = 22 [8.33%] vs. MS-PCI: n = 40 [15.20%]; HR: 0.522 [95% CI: 0.310 to 0.878]; p = 0.01; p log-rank = 0.013). When the analyses were limited to cardiac death (1S-PCI: n = 9 [3.41%] vs. MS-PCI: n = 14 [5.32%]; HR: 0.624 [95% CI: 0.270 to 1.441]; p = 0.27) and myocardial infarction (1S-PCI: n = 7 [2.65%] vs. MS-PCI: n = 10 [3.80%]; HR: 0.678 [95% CI: 0.156 to 2.657]; p = 0.46), no significant differences were observed between groups.
Conclusions: In multivessel non-ST-segment elevation myocardial infarction patients, complete 1-stage coronary revascularization is superior to multistage PCI in terms of major adverse cardiovascular and cerebrovascular events. (Impact of Different Treatment in Multivessel Non ST Elevation Myocardial Infarction [NSTEMI
Comparison of therapy with ticagrelor, prasugrel or high clopidogrel dose in pci patients with high on treatment platelet reactivity and genotype variation. triplete reset trial
Response to Clopidogrel is widely variable and an early individuation of high on-treatment platelet reactivity (HTPR) could be associated with a better clinical outcome. Nevertheless, this strategies failed to demonstrate a clinical improvement [1,2]. Several data showed that the CYP2C19*2 loss-of-function allele is associated with a marked decrease in platelet response to Clopidogrel [3] and an impaired prognosis [4]. Prasugrel and Ticagrelor were more potent and faster than Clopidogrel [5,6] to reduce platelet reactivity (PR) but have not been examined in stable patients with HTPR. This trial is a single center, randomized and parallel-group study with blinded analyses and end-point adjudication. The protocol is conformed to the ethical guidelines of Helsinki Declaration as reflected in a priori approval by the institution's human research committee and written consent was obtained from all patients
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