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2.
Eur Heart J Acute Cardiovasc Care ; 9(8): 911-922, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32159359

RESUMO

BACKGROUND: The European Society of Cardiology established a set of quality indicators for the management of acute myocardial infarction. Our aim was to evaluate their degree of attainment, prognostic value and potential use for centre benchmarking in a large international cohort. METHODS: Quality indicators were extracted from the long-tErm follow-uP of antithrombotic management patterns In acute CORonary syndrome patients (EPICOR) (555 hospitals, 20 countries in Europe and Latin America, 2010-2011) and EPICOR Asia (218 hospitals, eight countries, 2011-2012) registries, including non-ST-segment elevation acute myocardial infarction (n=6558) and ST-segment elevation acute myocardial infarction (n=11,559) hospital survivors. The association between implementation rates for each quality indicator and two-year adjusted mortality was evaluated using adjusted Cox models. Composite quality indicators were categorized for benchmarking assessment at different levels. RESULTS: The degree of attainment of the 17 evaluated quality indicators ranged from 13% to 100%. Attainment of most individual quality indicators was associated with two-year survival. A higher compliance with composite quality indicators was associated with lower mortality at centre-, country- and region-level. Moreover, the higher the risk for two-year mortality, the lower the compliance with composite quality indicators. CONCLUSIONS: When EPICOR and EPICOR Asia were conducted, the European Society of Cardiology quality indicators would have been attained to a limited extent, suggesting wide room for improvement in the management of acute myocardial infarction patients. After adjustment for confounding, most quality indicators were associated with reduced two-year mortality and their prognostic value should receive further attention. The two composite quality indicators can be used as a tool for benchmarking either at centre-, country- or world region-level.


Assuntos
Benchmarking/normas , Hospitais/estatística & dados numéricos , Infarto do Miocárdio/terapia , Indicadores de Qualidade em Assistência à Saúde , Sistema de Registros , Idoso , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Prospectivos , Fatores de Risco , Fatores de Tempo
3.
Diabetes Obes Metab ; 20(7): 1732-1739, 2018 07.
Artigo em Inglês | MEDLINE | ID: mdl-29573215

RESUMO

AIMS: TECOS, a cardiovascular safety trial (ClinicalTrials.gov identifier: NCT00790205) involving 14 671 patients with type 2 diabetes and cardiovascular disease, demonstrated that sitagliptin was non-inferior to placebo for the primary composite cardiovascular outcome when added to best usual care. This study tested hypotheses that medical resource use and costs differed between these 2 treatment strategies. MATERIALS AND METHODS: Information concerning medical resource use was collected on case report forms throughout the trial and was valued using US costs for: Medicare payments for hospitalizations, medical procedures and outpatient visits, and wholesale acquisition costs (WAC) for diabetes-related medications. Hierarchical generalized linear models were used to compare resource use and US costs, accounting for variable intercountry practice patterns. Sensitivity analyses included resource valuation using English costs for a UK perspective. RESULTS: There were no significant differences in hospitalizations, inpatient days, medical procedures, or outpatient visits during follow-up (mean and median 3.0 years in both groups). Hospitalization rates appeared to diverge after 2 years, with lower rates among sitagliptin-treated vs placebo patients after 2.5 years (relative rate, 0.90 [95% CI, 0.83-0.97]; P = .01). Mean medical costs, exclusive of study medication, were 11 937 USD in the sitagliptin arm and 12 409 USD in the placebo arm (P = .06). Mean sitagliptin costs based on undiscounted WAC were 9978 USD per patient. Differential UK total costs including study drug costs were smaller (911 GBP), primarily because of lower mean costs for sitagliptin (1072 GBP). CONCLUSIONS: Lower hospitalization rates across time with sitagliptin slightly offset sitagliptin treatment costs over 3 years in type 2 diabetes patients at high risk for cardiovascular events.


Assuntos
Diabetes Mellitus Tipo 2/economia , Custos de Cuidados de Saúde/estatística & dados numéricos , Recursos em Saúde/estatística & dados numéricos , Hipoglicemiantes/economia , Fosfato de Sitagliptina/economia , Idoso , Assistência Ambulatorial/economia , Assistência Ambulatorial/estatística & dados numéricos , Análise Custo-Benefício , Diabetes Mellitus Tipo 2/tratamento farmacológico , Custos de Medicamentos/estatística & dados numéricos , Estudos de Equivalência como Asunto , Feminino , Recursos em Saúde/economia , Hospitalização/economia , Hospitalização/estatística & dados numéricos , Humanos , Hipoglicemiantes/uso terapêutico , Tempo de Internação/economia , Tempo de Internação/estatística & dados numéricos , Modelos Lineares , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Ensaios Clínicos Controlados Aleatórios como Assunto , Fosfato de Sitagliptina/uso terapêutico , Estados Unidos
4.
Eur Heart J ; 39(25): 2423-2430, 2018 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-28449050

RESUMO

Aims: The burden of cardiovascular disease is increasing worldwide, which has to be reflected by cardiovascular (CV) research in Europe. CardioScape, a FP7 funded project initiated by the European Society of Cardiology (ESC), identified where CV research is performed, how it is funded and by whom. It could be transformed into an on-line and up-to-date resource of great relevance for researchers, funding bodies and policymakers and could be a role model for mapping CV research funding in Europe and beyond. Methods and results: Relevant funding bodies in 28 European Union (EU) countries were identified by a multistep process involving experts in each country. Projects above a funding threshold of 100 k€ during the period 2010-2012 were included using a standard questionnaire. Results were classified by experts and an adaptive text analysis software to a CV-research taxonomy, integrating existing schemes from ESC journals and congresses. An on-line query portal was set up to allow different users to interrogate the database according to their specific viewpoints. Conclusion: CV-research funding varies strongly between different nations with the EU providing 37% of total available project funding and clear geographical gradients exist. Data allow in depth comparison of funding for different research areas and led to a number of recommendations by the consortium. CardioScape can support CV research by aiding researchers, funding agencies and policy makers in their strategic decisions thus improving research quality if CardioScape strategy and technology becomes the basis of a continuously updated and expanded European wide publicly accessible database.


Assuntos
Pesquisa Biomédica/economia , Doenças Cardiovasculares , Administração Financeira , Europa (Continente) , União Europeia , Humanos
5.
Circ Cardiovasc Interv ; 9(5): e003114, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-27162212

RESUMO

BACKGROUND: Stent thrombosis (ST) is an important end point in cardiovascular clinical trials. Adjudication is traditionally based on clinical event committee (CEC) review of case report forms and source documentation rather than angiograms. However, the degree to which this method of adjudication is concordant with the review of independent angiographic core laboratories (ACLs) has not been studied. This report represents the first assessment of variability between local investigators (LIs), a CEC, and an ACL. METHODS AND RESULTS: Serial angiograms of 329 patients with acute coronary syndrome without ST-segment-elevation who underwent percutaneous coronary intervention at entry in the Trial to Assess the Effects of Vorapaxar in Preventing Heart Attack and Stroke in Particpants With Acute Coronary Syndrome (TRACER) and who met criteria for possible ST subsequent to the index event were reviewed by an ACL. The ACL was blinded to the assessment by both LIs and the CEC regarding the presence or absence of ST. CEC adjudication was based on Academic Research Consortium definitions of ST, using case report form data and source documents, including catheterization laboratory reports. The ACL, CEC, and LIs agreed on the presence or absence of ST in 52.9% events (κ=0.32; 95% confidence interval, 0.26-0.39). The ACL and CEC agreed on 82.7% of events (κ=0.57; 95% confidence interval, 0.47-0.67); the ACL and LIs agreed on 61.1% of events (κ=0.25; 95% confidence interval, 0.16-0.34); and the CEC and LIs agreed on 62% of events (κ=0.28; 95% confidence interval, 0.21-0.36). CONCLUSIONS: ST reporting by an ACL, a CEC, and LIs is discordant. The assessment of ST is more often detected by direct review of angiograms by an ACL. CLINICAL TRIAL REGISTRATION: URL: http://www.clinicaltrials.gov. Unique identifier: NCT00527943.


Assuntos
Síndrome Coronariana Aguda/epidemiologia , Implante de Prótese Vascular , Avaliação de Resultados em Cuidados de Saúde/estatística & dados numéricos , Complicações Pós-Operatórias/epidemiologia , Trombose/epidemiologia , Síndrome Coronariana Aguda/diagnóstico , Síndrome Coronariana Aguda/terapia , Angiografia , Animais , Embrião de Galinha , Técnicas de Laboratório Clínico , Stents Farmacológicos/estatística & dados numéricos , Eletrocardiografia , Feminino , Seguimentos , Humanos , Lactonas/uso terapêutico , Masculino , Intervenção Coronária Percutânea , Complicações Pós-Operatórias/diagnóstico , Complicações Pós-Operatórias/terapia , Piridinas/uso terapêutico , Reprodutibilidade dos Testes , Trombose/diagnóstico , Trombose/etiologia
7.
Catheter Cardiovasc Interv ; 84(6): 934-42, 2014 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-24976083

RESUMO

OBJECTIVES: We evaluated patients at tertiary [both percutaneous coronary intervention (PCI) and coronary artery bypass grafting (CABG) capable] and primary hospitals in the EARLY-ACS trial. BACKGROUND: Early invasive management is recommended for high-risk non-ST-segment elevation acute coronary syndromes. METHODS: We evaluated outcomes in 9,204 patients presenting to: tertiary sites, primary sites with transfer to tertiary sites ("transferred") and those who remained at primary sites ("non-transfer"). RESULTS: There were 348 tertiary (n = 7,455 patients) and 89 primary hospitals [n = 1,749 patients (729 transferred; 1,020 non-transfer)]. Significant delays occurred in time from symptom onset to angiography (49 hr), PCI (53h), and CABG (178 hr) for transferred patients (P < 0.001). Non-transfer patients had less 30-day death/myocardial infarction [9.4% vs. 11.7% (tertiary); adjusted odds ratio (OR): 0.78 (0.62-0.97), P = 0.026]; transferred (14.0%) and tertiary patients were similar [adjusted OR: 1.23 (0.98-1.53), P = 0.074]. Non-transfer patients had lower 1-year mortality [4.3% vs. 6.3% (tertiary); adjusted hazard ratio (HR): 0.64 (0.47-0.87), P = 0.005]: there was no difference between transferred and tertiary patients [5.2% vs. 6.3%; adjusted HR: 0.80 (0.58-1.12), P = 0.202]. Despite similar rates of catheterization, GUSTO severe/moderate bleeding within 120 hr was less in non-transfer [3.1% vs. 6.7% (tertiary); adjusted OR: 0.47 (0.32-0.68), P < 0.001], whereas transferred (6.1%) and tertiary patients were similar [adjusted OR: 0.94 (0.68-1.30), P = 0.693]. There was no difference in non-CABG bleeding. CONCLUSIONS: Timely angiography and revascularization were often not achieved in transferred patients. Non-transferred patients presenting to primary sites had the lowest event rates and the best long-term survival.


Assuntos
Síndrome Coronariana Aguda/terapia , Ponte de Artéria Coronária , Transferência de Pacientes , Peptídeos/administração & dosagem , Intervenção Coronária Percutânea , Inibidores da Agregação Plaquetária/administração & dosagem , Complexo Glicoproteico GPIIb-IIIa de Plaquetas/antagonistas & inibidores , Padrões de Prática Médica , Atenção Primária à Saúde , Centros de Atenção Terciária , Tempo para o Tratamento , Síndrome Coronariana Aguda/sangue , Síndrome Coronariana Aguda/diagnóstico , Síndrome Coronariana Aguda/mortalidade , Idoso , Distribuição de Qui-Quadrado , Angiografia Coronária , Ponte de Artéria Coronária/efeitos adversos , Ponte de Artéria Coronária/mortalidade , Ponte de Artéria Coronária/normas , Esquema de Medicação , Eptifibatida , Feminino , Fidelidade a Diretrizes , Hemorragia/etiologia , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Razão de Chances , Peptídeos/efeitos adversos , Intervenção Coronária Percutânea/efeitos adversos , Intervenção Coronária Percutânea/mortalidade , Intervenção Coronária Percutânea/normas , Inibidores da Agregação Plaquetária/efeitos adversos , Complexo Glicoproteico GPIIb-IIIa de Plaquetas/metabolismo , Guias de Prática Clínica como Assunto , Padrões de Prática Médica/normas , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento
9.
Int J Cardiol ; 169(3): 190-5, 2013 Nov 05.
Artigo em Inglês | MEDLINE | ID: mdl-24139785

RESUMO

BACKGROUND: This study aimed at understanding whether investigators from less wealthy countries were at a disadvantage in disseminating their research, after accounting for potential differences in research quality and infrastructure. METHODS AND RESULTS: In this bibliometric analysis a representative random selection of 10% (n=1002 studies) of all abstracts submitted to the European Society of Cardiology (ESC) congress 2006 was followed for publication and citation from September 2006 to December 2011. The main variable of interest was the per-capita gross domestic product (GDP) of the country of the principal investigator. Using multivariable models that adjusted for socioeconomic indicators and previously identified markers of research quality, we examined the relationship between per-capita GDP and three study endpoints: Acceptance at the ESC congress, full-text publication, and number of two-year citations. Among 1002 abstracts from 63 countries, per-capita GDP was positively correlated with all three study endpoints. After adjusting for markers of research quality and infrastructure, per-capita GDP remained a strong predictor for acceptance at the ESC congress (adjusted OR for every 10,000 USD increase in per-capita GDP, 1.44; 95% CI, 1.15 to 1.80), full-text publication within 5years (adjusted OR, 1.49; 95% CI, 1.17 to 1.90), and high citation frequency (adjusted OR, 2.30; 95% CI, 1.31 to 4.04). These findings were largely consistent in a subgroup of abstracts of high-quality, prospective clinical trials. CONCLUSION: Investigators in less wealthy countries face challenges to disseminate their research, even after accounting for potential differences in the quality of their work and research infrastructure.


Assuntos
Bibliometria , Pesquisa Biomédica/economia , Doenças Cardiovasculares/economia , Saúde Global/economia , Produto Interno Bruto , Doenças Cardiovasculares/epidemiologia , Seguimentos , Humanos , Nações Unidas/economia
10.
Circulation ; 127(9): 1052-89, 2013 Mar 05.
Artigo em Inglês | MEDLINE | ID: mdl-23357718
12.
Am Heart J ; 161(5): 848-54, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-21570513

RESUMO

BACKGROUND: Traditional time-to-event analysis assigns equal weight to the first event in the composite end point. This is counterintuitive to many stakeholders. METHODS: We constructed weights for components of a composite efficacy end point and a net clinical outcome by including metrics of safety and efficacy and compared the weighted with the traditional approach. Through an externally validated, clinician-investigator Delphi panel, the relative severity of individual components of a composite end point (30-day death, recurrent myocardial infarction, cardiogenic shock, and congestive heart failure) was determined. The net clinical outcome was assessed through the incorporation of risk thresholds for safety events (intracranial hemorrhage and major systemic bleeding). These weights were then applied to a modified analysis of the ASSENT-3 trial. RESULTS: The weights for the efficacy composite were as follows: death, 1.0; shock, 0.5; congestive heart failure, 0.3; and recurrent myocardial infarction, 0.2. The traditional time-to-first-event approach demonstrated a comparable advantage for both enoxaparin (enox) and abciximab (abx) over unfractionated heparin (P = .05), whereas the weighted efficacy analysis suggested an advantage for enox and similar outcomes between unfractionated heparin and abx (P = .2). The apparent advantage of enox was attenuated when the net clinical outcome was examined; the apparent efficacy of abx combination therapy was also diminished by an elevated major systemic bleeding rate (P < .001). CONCLUSION: This novel approach adds an alternative dimension to treatment evaluation by more efficiently incorporating the differential value of all events in each patient. Further development and application of this approach to future trial design and analysis are warranted.


Assuntos
Fibrinolíticos/uso terapêutico , Infarto do Miocárdio/tratamento farmacológico , Ensaios Clínicos Controlados Aleatórios como Assunto , Medição de Risco/métodos , Terapia Trombolítica/métodos , Humanos , Razão de Chances , Resultado do Tratamento
13.
Eur Heart J ; 32(13): 1673-86, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21572115

RESUMO

The European Commission announced in 2008 that a fundamental revision of the medical device directives is being considered in order to clarify and strengthen the current legal framework. The system for testing and approving devices in Europe was established >20 years ago as a 'New Approach' to a previously little-regulated industry. It is recognized by many that the regulatory system has not kept pace with technological advances and changing patterns of medical practice. New legislation will be drafted during 2011, but medical experts have been little involved in this important process. This context makes it an opportune time for a professional association to advise from both clinical and academic perspectives about changes which should be made to improve the safety and efficacy of devices used in clinical practice and to develop more appropriate systems for their clinical evaluation and post-marketing surveillance. This report summarizes how medical devices are regulated and it reviews some serious clinical problems that have occurred with cardiovascular devices. Finally, it presents the main recommendations from a Policy Conference on the Clinical Evaluation of Cardiovascular Devices that was held at the European Heart House in January 2011.


Assuntos
Cardiologia/instrumentação , Equipamentos e Provisões/normas , Tecnologia Biomédica/legislação & jurisprudência , Tecnologia Biomédica/normas , Cardiologia/legislação & jurisprudência , Diagnóstico por Imagem/instrumentação , Difusão de Inovações , Desenho de Equipamento/normas , Falha de Equipamento , União Europeia , Setor de Assistência à Saúde/legislação & jurisprudência , Setor de Assistência à Saúde/normas , Humanos , Relações Interprofissionais , Legislação Médica , Segurança do Paciente , Estados Unidos
14.
J Am Coll Cardiol ; 57(19): 1867-73, 2011 May 10.
Artigo em Inglês | MEDLINE | ID: mdl-21545942

RESUMO

OBJECTIVES: This study investigated the occurrence of intraluminal thrombus and its potential implications with facilitated percutaneous coronary interventions (fPCIs). BACKGROUND: The effect of fPCI on the presence and consequences of intraluminal thrombus is unknown. METHODS: Thrombolysis In Myocardial Infarction (TIMI) flow grade, frame count, and thrombus grade; distal embolization; and slow flow in the infarct-related artery were assessed in a blinded fashion on coronary angiograms in 1,342 patients from the ASSENT-4 PCI (Assessment of the Safety and Efficacy of a New Treatment Strategy With Percutaneous Coronary Intervention) trial. Residual TIMI thrombus grade ≥2 and/or distal embolization and/or slow flow, reflecting thrombus burden (TB), following PCI were correlated with ST-segment resolution, epicardial blood flow, and clinical outcome. The clinical composite endpoint was death, congestive heart failure, or shock. RESULTS: In the fPCI group, more TIMI flow grade 2/3 in the infarct-related artery at the first angiogram (73.7% vs. 33.4%, p < 0.001) and a higher TB following PCI (19.7% vs. 13.4%, p = 0.002) were found in comparison with the primary PCI group. Post-PCI TIMI thrombus grade was significantly associated with ST-segment resolution (p < 0.001) and TIMI frame count (p < 0.0001) in both groups. In the fPCI group, the presence of post-PCI thrombus was associated with a significantly worse outcome at 90 days (clinical composite endpoint: 32.1% vs. 18.6%, p = 0.023). Multivariable logistic regression showed that facilitation with tenecteplase (p = 0.005) and TB (odds ratio: 2.43, 95% confidence interval: 1.30 to 4.51, p = 0.0052) were independent predictors of 90-day mortality. CONCLUSIONS: In ASSENT-4 PCI, despite more patency, residual TB was significantly higher in fPCI patients and was associated with less efficient tissue reperfusion and worse clinical outcomes. (A Trial Evaluating the Efficacy and Safety of Tenecteplase Together With Unfractionated Heparin Prior to Early Percutaneous Coronary Intervention [PCI] as Compared to Standard Primary PCI in Patients With Acute Myocardial Infarction [ASSENT-4 PCI]; NCT00168792).


Assuntos
Angioplastia Coronária com Balão/efeitos adversos , Cardiopatias/diagnóstico por imagem , Heparina/efeitos adversos , Trombose/diagnóstico por imagem , Ativador de Plasminogênio Tecidual/efeitos adversos , Idoso , Angioplastia Coronária com Balão/métodos , Angiografia Coronária/métodos , Feminino , Cardiopatias/etiologia , Heparina/administração & dosagem , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Tenecteplase , Trombose/etiologia , Ativador de Plasminogênio Tecidual/administração & dosagem , Resultado do Tratamento
16.
Circ Cardiovasc Interv ; 3(5): 414-22, 2010 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-20858863

RESUMO

BACKGROUND: Accurate models to predict mortality are needed for risk stratification in patients with ST-segment elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (PCI). METHODS AND RESULTS: We examined 5745 patients with STEMI undergoing primary PCI in the Assessment of Pexelizumab in Acute Myocardial Infarction Trial within 6 hours of symptom onset. A Cox proportional hazards model incorporating regression splines to accommodate nonlinearity in the log hazard ratio (HR) scale was used to determine baseline independent predictors of 90-day mortality. At 90 days, 271 (4.7%) of 5745 patients died. Independent correlates of 90-day mortality were (in descending order of statistical significance) age (HR, 2.03/10-y increments; 95% CI, 1.80 to 2.29), systolic blood pressure (HR, 0.86/10-mm Hg increments; 95% CI, 0.82 to 0.90), Killip class (class 3 or 4 versus 1 or 2) (HR, 4.24; 95% CI, 2.97 to 6.08), heart rate (>70 beats per minute) (HR, 1.45/10-beat increments; 95% CI, 1.31 to 1.59), creatinine (HR, 1.23/10-µmol/L increments >90 µmol/L; 95% CI, 1.13 to 1.34), sum of ST-segment deviations (HR, 1.25/10-mm increments; 95% CI, 1.11 to 1.40), and anterior STEMI location (HR, 1.47; 95% CI, 1.12 to 1.93) (c-index, 0.82). Internal validation with bootstrapping confirmed minimal overoptimism (c-index, 0.81). CONCLUSIONS: Our study provides a practical method to assess intermediate-term prognosis of patients with STEMI undergoing primary PCI, using baseline clinical and ECG variables. This model identifies key factors affecting prognosis and enables quantitative risk stratification that may be helpful in guiding clinical care and for risk adjustment for observational analyses.


Assuntos
Angioplastia Coronária com Balão , Anticorpos Monoclonais/uso terapêutico , Infarto do Miocárdio/diagnóstico , Infarto do Miocárdio/terapia , Anticorpos de Cadeia Única/uso terapêutico , Idoso , Idoso de 80 Anos ou mais , Anticorpos Monoclonais Humanizados , Eletrocardiografia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/mortalidade , Infarto do Miocárdio/fisiopatologia , Prognóstico , Modelos de Riscos Proporcionais , Medição de Risco , Fatores de Risco
17.
Am Heart J ; 159(1): 131-40, 2010 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-20102879

RESUMO

BACKGROUND: We investigated the prognostic significance of plasma N-terminal fragment of the prohormone B-type natriuretic peptide (Nt-proBNP) concentrations in addition to time to reperfusion and Thrombolysis in Myocardial Infarction (TIMI) flow before and after coronary intervention in patients with ST elevation myocardial infarction (STEMI) from the database of the Assessment of the Safety and Efficacy of a New Treatment Strategy with Percutaneous Coronary Intervention (ASSENT IV-PCI) trial. METHODS: Plasma Nt-proBNP was available in 1,037 patients with STEMI. Patients were randomized either to primary (p-PCI) or to full-dose tenecteplase before PCI (f-PCI).The study end point was the composite of death, cardiogenic shock, or congestive heart failure at 90 days. RESULTS: According to classification tree analysis, patients with Nt-proBNP levels >694 pg/mL had the highest primary end point rates (33.8% vs 11%, P < .001). In Cox regression analysis, Nt-proBNP >694 pg/mL strongly predicted 90-day survival even among patients with short treatment delay (f-PCI < or =3 hours: hazard ratio [HR] 2.63, P = .002 and p-PCI < or =3 hours: HR 4.87, P < .001, respectively). Patients with TIMI 3 flow after coronary intervention were at significantly higher risk of the primary end point if admission Nt-proBNP exceeded 694 pg/mL (f-PCI: HR 2.88, P < .001 and p-PCI: HR 3.84, P < .001, respectively). In multivariable analysis, Nt-proBNP >694 pg/mL significantly (P = .001) predicted 90-day survival in addition to age (P < .001), TIMI flow after PCI (P < .001), body mass index (P = .026), anterior wall infarction (P = .035), and systolic blood pressure at randomization (P = .036), respectively. CONCLUSION: Elevated plasma concentrations of Nt-proBNP in the early phase of STEMI determine in-hospital and 90-day outcome after infarction irrespective of time to treatment and pre- or postinterventional TIMI flow.


Assuntos
Angioplastia Coronária com Balão/métodos , Infarto do Miocárdio/terapia , Peptídeo Natriurético Encefálico/sangue , Fragmentos de Peptídeos/sangue , Terapia Trombolítica/métodos , Ativador de Plasminogênio Tecidual/uso terapêutico , Idoso , Análise de Variância , Angioplastia Coronária com Balão/mortalidade , Biomarcadores/sangue , Terapia Combinada , Intervalos de Confiança , Angiografia Coronária/métodos , Circulação Coronária/efeitos dos fármacos , Circulação Coronária/fisiologia , Diagnóstico Precoce , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Infarto do Miocárdio/sangue , Infarto do Miocárdio/diagnóstico por imagem , Infarto do Miocárdio/mortalidade , Valor Preditivo dos Testes , Probabilidade , Estudos Prospectivos , Medição de Risco , Análise de Sobrevida , Tenecteplase , Fatores de Tempo , Resultado do Tratamento , Grau de Desobstrução Vascular/efeitos dos fármacos , Grau de Desobstrução Vascular/fisiologia
18.
JACC Cardiovasc Interv ; 2(10): 925-30, 2009 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-19850250

RESUMO

OBJECTIVES: We have performed a retrospective analysis of the data stratified by time to treatment and by enrollment site: percutaneous coronary intervention hospitals (PCIH), nonpercutaneous coronary intervention hospitals (NoPCIH), or in a pre-hospital setting (PreH). BACKGROUND: The ASSENT-4 PCI (Assessment of the Safety and Efficacy of a New Treatment Strategy with Percutaneous Coronary Intervention) trial intended to test the hypothesis that in ST-segment elevation myocardial infarction (STEMI) patients an upfront fibrinolytic bolus before PCI ("facilitated PCI") compared with primary PCI would benefit STEMI patients facing a long pre-PCI delay. METHODS: Seven hundred forty-nine patients (45%) presented directly to PCIH, 578 (34%) presented to NoPCIH, and 334 (20%) were randomized and initially treated in the PreH setting. RESULTS: Patients in the PreH-facilitated group had the shortest delays (pain-to-fibrinolytic treatment 125 min) and the lowest 90-day mortality (3.1%). Among patients randomized to primary PCI, the shortest time from pain to first balloon was similarly in the PreH group (223 min). They had the lowest mortality of the primary PCI patient groups (4.1%). The highest mortality (8.4%) was in patients presenting to a PCIH and assigned to the facilitated strategy. Their pain-to-lysis time was 174 min and pain-to-PCI time 266 min (or 92 min after lysis). CONCLUSIONS: Few patients fit the target population, long delays to PCI for whom facilitated PCI was designed. Patients treated early after pain onset in the PreH setting do well after a facilitated approach. Despite limitations of post hoc subgroup analysis, these observations suggest caution in extrapolating the results of the ASSENT-4 trial to the "real world" where many patients might have potentially short pain-to-fibrinolysis time but are facing a long transport time to primary PCI.


Assuntos
Angioplastia Coronária com Balão , Fibrinolíticos/uso terapêutico , Acessibilidade aos Serviços de Saúde , Infarto do Miocárdio/terapia , Terapia Trombolítica , Ativador de Plasminogênio Tecidual/uso terapêutico , Idoso , Angioplastia Coronária com Balão/efeitos adversos , Angioplastia Coronária com Balão/mortalidade , Terapia Combinada , Feminino , Fibrinolíticos/efeitos adversos , Mortalidade Hospitalar , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/mortalidade , Transferência de Pacientes , Inibidores da Agregação Plaquetária/uso terapêutico , Ensaios Clínicos Controlados Aleatórios como Assunto , Estudos Retrospectivos , Tenecteplase , Terapia Trombolítica/efeitos adversos , Terapia Trombolítica/mortalidade , Fatores de Tempo , Ativador de Plasminogênio Tecidual/efeitos adversos , Resultado do Tratamento
19.
Circulation ; 118(13): 1335-46, 2008 Sep 23.
Artigo em Inglês | MEDLINE | ID: mdl-18779444

RESUMO

BACKGROUND: Primary percutaneous coronary angioplasty is an effective and widely adopted treatment for acute myocardial infarction. A simple method of determining prognosis after primary percutaneous coronary intervention (PCI) would facilitate appropriate care and expedite hospital discharge. Thus, we determined the prognostic importance of various measures of ST-segment-elevation recovery after primary PCI in a large, contemporary cohort of patients with ST-elevation myocardial infarction. METHODS AND RESULTS: We analyzed ECG data describing the magnitude and extent of ST-segment elevation and deviation before and early after (ie, 30 minutes) primary PCI in the study cohort of 4866 subjects with electrocardiographically high-risk ST-elevation myocardial infarction enrolled in the Assessment of PEXelizumab in Acute Myocardial Infarction (APEX-AMI) trial. Associations among 6 methods for calculating ST-segment recovery, biomarker estimates of infarct size (ie, peak creatine kinase, creatine kinase-MB, and troponin I and T), and prespecified clinical outcomes (ie, rates of 90-day death and 90-day death, heart failure, or shock) were examined. All ST-segment-recovery methods provided strong prognostic information regarding clinical outcomes. A simple ST-segment-recovery method of residual ST-segment elevation measurement in the most affected lead on the post-PCI ECG performed as well as complex methods that required comparison of pre- and post-PCI ECGs or calculation of summed ST-segment deviation in multiple leads (ie, worst-lead residual ST elevation: adjusted hazard ratio for 90-day death rate [reference <1 mm]: 1 to <2 mm, 1.23 [95% CI 0.74 to 2.03]; > or =2 mm, 2.22 [95% CI 1.35 to 3.65], corrected c-index=0.832; 90-day death/congestive heart failure/shock [reference <1 mm]: 1 to <2 mm, 1.55 [95% CI 1.06 to 2.26]; > or =2 mm, 2.33 [95% CI 1.59 to 3.41], corrected c-index=0.802). Biomarker estimates of infarct size declined in association with enhanced ST-segment recovery. CONCLUSIONS: An ECG performed early after primary PCI is a simple, widely available, inexpensive, and powerful prognostic tool applicable to patients with ST-elevation myocardial infarction.


Assuntos
Angioplastia Coronária com Balão/mortalidade , Anticorpos Monoclonais/administração & dosagem , Eletrocardiografia , Infarto do Miocárdio , Idoso , Anticorpos Monoclonais Humanizados , Estudos de Coortes , Terapia Combinada , Feminino , Insuficiência Cardíaca/mortalidade , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Infarto do Miocárdio/diagnóstico , Infarto do Miocárdio/mortalidade , Infarto do Miocárdio/terapia , Valor Preditivo dos Testes , Prognóstico , Recuperação de Função Fisiológica , Choque Cardiogênico/mortalidade , Anticorpos de Cadeia Única , Resultado do Tratamento
20.
Eur Heart J ; 28(21): 2678-84, 2007 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-17940081

RESUMO

During the 2006 World Congress of Cardiology meeting in Barcelona, the Virtual Coordinating Centre for Global Collaborative Cardiovascular Research (VIGOUR) group held a symposium examining potential approaches to understanding and controlling the explosive worldwide growth of cardiovascular disease and its attendant morbidity and mortality. Over the last 20 years, the global nature of many problems in health care has become much more evident. In the realm of health, this has meant that countries across the globe have started to experience the same kinds of behavioural shifts (overeating, reduced physical activity and smoking), and with them massive increases in cardiovascular risk factors, observed over the last century particularly in North America and Western Europe. This VIGOUR symposium focused on what actions can be taken now to prepare for this future in which prevention and treatment of cardiovascular disease will be a major public health issue in a much larger proportion of the world's countries. The participants focused on four major areas where they saw important opportunities: (i) the development of high quality, contemporaneous data sources that can be used to study and improve the processes, treatments and outcomes of cardiovascular diseases globally; (ii) the feasibility and resource/health economic implications of any proposed potential solutions need to be carefully defined; (iii) models/systems must be identified that can be used to guide effective interventions targeting health problems of large populations at an affordable price; (iv) academic research organizations need to assume a more active role in the health-care system both through their traditional activities in discovery research and developing evidence-based medicine along with translation of research findings into effective interventions that improve the public health.


Assuntos
Doenças Cardiovasculares/prevenção & controle , Pesquisa sobre Serviços de Saúde/métodos , Serviços Preventivos de Saúde/métodos , Sistema de Registros , Doenças Cardiovasculares/economia , Doenças Cardiovasculares/mortalidade , Ensaios Clínicos como Assunto , Medicina Baseada em Evidências/economia , Medicina Baseada em Evidências/métodos , Estudos de Viabilidade , Saúde Global , Pesquisa sobre Serviços de Saúde/economia , Humanos , Cooperação Internacional , Serviços Preventivos de Saúde/economia , Terminologia como Assunto
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