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1.
JAMA Cardiol ; 3(11): 1113-1118, 2018 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-30264159

RESUMO

Importance: Loading doses of atorvastatin did not show reduction on clinical outcomes in the overall population of patients with acute coronary syndrome (ACS) enrolled in the Statins Evaluation in Coronary Procedures and Revascularization (SECURE-PCI) trial, but a potential benefit was identified in patients who subsequently underwent percutaneous coronary intervention (PCI). Objectives: To determine whether periprocedural loading doses of atorvastatin are associated with decreased 30-day major adverse cardiovascular events (MACE) in patients with ACS undergoing PCI according to type of ACS and timing of atorvastatin administration before PCI. Design, Setting, and Participants: Secondary analysis of a multicenter, double-blind, placebo-controlled, randomized clinical trial conducted at 53 sites that enrolled 4191 patients with ACS intended to be treated with PCI between April 18, 2012, and October 06, 2017. Interventions: Patients were randomized to 2 loading doses of 80 mg of atorvastatin or matching placebo before and 24 hours after a planned PCI. By protocol, all patients (regardless of treatment group) received 40 mg of atorvastatin for 30 days starting 24 hours after the second dose of study medication. Main Outcomes and Measures: The primary outcome was MACE through 30 days, composed by all-cause mortality, myocardial infarction, stroke, and unplanned coronary revascularization. Cox regression models adjusting for key baseline characteristics were used to assess the association between atorvastatin and MACE in patients undergoing PCI. Results: From the overall trial population, 2710 (64.7%) underwent PCI (650 women [24.0%]; mean [SD] age, 62 [11.3] years). Loading atorvastatin was associated with reduced MACE at 30 days by 28% in the PCI group (adjusted hazard ratio [HR], 0.72; 95% CI 0.54-0.97; P = .03). Loading dose of atorvastatin was administered less than 12 hours before PCI in 2548 patients (95.3%) (45.1% < 2 hours and 54.3% between 2 and 12 hours). There was no significant interaction between treatment effect and timing of study drug administration. The treatment effect of loading atorvastatin was more pronounced in patients with ST-segment elevation myocardial infarction than in patients with non-ST-segment elevation ACS (adjusted HR, 0.59; 95% CI, 0.38-0.92; P = .02; HR, 0.85; 95% CI, 0.58-1.27; P = .43, respectively). Conclusions and Relevance: In patients with ACS undergoing PCI, periprocedural loading doses of atorvastatin appeared to reduce the rate of MACE at 30 days, most clearly in patients with ST-segment elevation myocardial infarction. This beneficial effect seemed to be preserved and consistent, irrespective of the timing of atorvastatin administration, including within 2 hours before PCI. Trial Registration: clinicaltrials.gov Identifier: NCT01448642.


Assuntos
Síndrome Coronariana Aguda/terapia , Anticolesterolemiantes/administração & dosagem , Atorvastatina/administração & dosagem , Intervenção Coronária Percutânea/métodos , Idoso , Anticolesterolemiantes/uso terapêutico , Atorvastatina/uso terapêutico , Método Duplo-Cego , Esquema de Medicação , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Assistência Perioperatória , Resultado do Tratamento
2.
Am Heart J ; 198: 129-134, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-29653634

RESUMO

BACKGROUND: Previous evidence suggests that acute treatment with statins reduce atherosclerotic complications, including periprocedural myocardial infarction, but currently, there are no large, adequately powered studies to define the effects of early, high-dose statins in patients with acute coronary syndrome (ACS) and planned invasive management. OBJECTIVES: The main goal of Statins Evaluation in Coronary procedUres and REvascularization (SECURE-PCI) Trial is to determine whether the early use of a loading dose of 80 mg of atorvastatin before an intended percutaneous coronary intervention followed by an additional dose of 80 mg 24 hours after the procedure will be able to reduce the rates of major cardiovascular events at 30 days in patients with an ACS. DESIGN: The SECURE-PCI study is a pragmatic, multicenter, double-blind, placebo-controlled randomized trial planned to enroll around 4,200 patients in 58 different sites in Brazil. The primary outcome is the rate of major cardiovascular events at 30 days defined as a composite of all-cause mortality, nonfatal acute myocardial infarction, nonfatal stroke, and coronary revascularization. SUMMARY: The SECURE PCI is a large randomized trial testing a strategy of early, high-dose statin in patients with ACS and will provide important information about the acute treatment of this patient population.


Assuntos
Síndrome Coronariana Aguda/tratamento farmacológico , Síndrome Coronariana Aguda/cirurgia , Atorvastatina/uso terapêutico , Intervenção Coronária Percutânea/métodos , Síndrome Coronariana Aguda/diagnóstico por imagem , Síndrome Coronariana Aguda/mortalidade , Idoso , Anticolesterolemiantes/uso terapêutico , Brasil , Relação Dose-Resposta a Droga , Método Duplo-Cego , Esquema de Medicação , Feminino , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Revascularização Miocárdica/métodos , Revascularização Miocárdica/mortalidade , Intervenção Coronária Percutânea/mortalidade , Cuidados Pós-Operatórios/métodos , Cuidados Pré-Operatórios/métodos , Prognóstico , Modelos de Riscos Proporcionais , Medição de Risco , Taxa de Sobrevida , Resultado do Tratamento
3.
J Am Soc Echocardiogr ; 28(6): 692-9, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25726313

RESUMO

BACKGROUND: Sickle cell anemia (SCA) is associated with cardiac abnormalities and premature death. The aims of this study were to identify early markers of cardiac dysfunction through ventricular strain and ventricular twist and determine the relationships between these measures and other markers of cardiovascular risk. METHODS: Forty patients with SCA (mean age, 23.5 ± 9.3 years; 24 male patients) and 40 age- and sex-matched healthy individuals were compared. All subjects participated in structured interviews, and blood samples were collected. Standard echocardiography with subsequent offline evaluations using left ventricular (LV) and right ventricular systolic strain and rotational analyses of the left ventricle using two-dimensional speckle-tracking echocardiography were performed. RESULTS: There were no differences in LV ejection fraction, global LV strain (longitudinal, circumferential, and radial), and global right ventricular longitudinal strain between patients and controls; however, LV twist was significantly lower in the patient group (mean, 7.4 ± 1.2° vs 10.7 ± 1.8°; P < .0001). Several variables were strongly related to LV twist, including the clinical severity index (ρ = -0.97, Z score = -6.05, P < .0001), E/e' ratio (r = 0.78, P < .0001), LV end-diastolic volume index (r = 0.81, P < .0001), and pulmonary artery systolic pressure (r = 0.72, P < .0001). CONCLUSIONS: LV twist is altered in patients with SCA. There were strong correlations between left ventricular twist and clinical severity index, E/e' ratio, LV end-diastolic volume index, and pulmonary artery systolic pressure. These data suggest that decreased LV twist may indicate a subgroup of patients with SCA at greater cardiac risk.


Assuntos
Anemia Falciforme/complicações , Anemia Falciforme/diagnóstico , Índice de Gravidade de Doença , Anormalidade Torcional/diagnóstico por imagem , Disfunção Ventricular Esquerda/diagnóstico por imagem , Disfunção Ventricular Esquerda/etiologia , Adulto , Ecocardiografia/métodos , Feminino , Ventrículos do Coração/diagnóstico por imagem , Humanos , Masculino , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Anormalidade Torcional/etiologia
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