Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 189
Filtrar
Mais filtros

Intervalo de ano de publicação
2.
PLoS One ; 15(12): e0243385, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33362198

RESUMO

INTRODUCTION: Blacks are more likely to live in poverty and be uninsured, and are less likely to undergo revascularization after am acute myocardial infarction compared to whites. The objective of this study was to determine whether Medicaid expansion was associated with a reduction in revascularization disparities in patients admitted with an acute myocardial infarction. METHODS: Retrospective analysis study using data (2010-2018) from hospitals participating in the University Health Systems Consortium, now renamed the Vizient Clinical Database. Comparative interrupted time series analysis was used to compare changes in the use of revascularization therapies (PCI and CABG) in white versus non-Hispanic black patients hospitalized with either ST-segment elevation (STEMI) or non-ST-segment elevation acute myocardial infarctions (NSTEMI) after Medicaid expansion. RESULTS: The analytic cohort included 68,610 STEMI and 127,378 NSTEMI patients. The percentage point decrease in the uninsured rate for STEMIs and NSTEMIs was greater for blacks in expansion states compared to whites in expansion states. For patients with STEMIs, differences in black versus white revascularization rates decreased by 2.09 percentage points per year (95% CI, 0.29-3.88, P = 0.023) in expansion versus non-expansion states after adjusting for patient and hospital characteristics. Black patients hospitalized with STEMI in non-expansion states experienced a 7.24 percentage point increase in revascularization rate in 2014 (95% CI, 2.83-11.7, P < 0.001) but did not experience significant annual percentage point increases in the rate of revascularization in subsequent years (1.52; 95% CI, -0.51-3.55, P = 0.14) compared to whites in non-expansion states. Medicaid expansion was not associated with changes in the revascularization rate for either blacks or whites hospitalized with NSTEMIs. CONCLUSION: Medicaid expansion was associated with greater reductions in the number of uninsured blacks compared to uninsured whites. Medicaid expansion was not associated, however, with a reduction in revascularization disparities between black and white patients admitted with acute myocardial infarctions.


Assuntos
Infarto do Miocárdio/epidemiologia , Infarto do Miocárdio sem Supradesnível do Segmento ST/epidemiologia , Intervenção Coronária Percutânea/economia , Infarto do Miocárdio com Supradesnível do Segmento ST/epidemiologia , Negro ou Afro-Americano , Idoso , Feminino , Disparidades em Assistência à Saúde/economia , Hospitalização/economia , Humanos , Masculino , Medicaid , Pessoas sem Cobertura de Seguro de Saúde , Pessoa de Meia-Idade , Infarto do Miocárdio/economia , Infarto do Miocárdio/cirurgia , Revascularização Miocárdica/economia , Revascularização Miocárdica/métodos , Infarto do Miocárdio sem Supradesnível do Segmento ST/economia , Infarto do Miocárdio sem Supradesnível do Segmento ST/cirurgia , Pobreza , Estudos Retrospectivos , Fatores de Risco , Infarto do Miocárdio com Supradesnível do Segmento ST/economia , Infarto do Miocárdio com Supradesnível do Segmento ST/cirurgia , Estados Unidos/epidemiologia , População Branca
3.
JAMA Netw Open ; 3(12): e2028312, 2020 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-33315111

RESUMO

Importance: Both noninvasive anatomic and functional testing strategies are now routinely used as initial workup in patients with low-risk stable chest pain (SCP). Objective: To determine whether anatomic approaches (ie, coronary computed tomography angiography [CTA] and coronary CTA supplemented with noninvasive fractional flow reserve [FFRCT], performed in patients with 30% to 69% stenosis) are cost-effective compared with functional testing for the assessment of low-risk SCP. Design, Setting, and Participants: This cost-effectiveness analysis used an individual-based Markov microsimulation model for low-risk SCP. The model was developed using patient data from the Prospective Multicenter Imaging Study for Evaluation of Chest Pain (PROMISE) trial. The model was validated by comparing model outcomes with outcomes observed in the PROMISE trial for anatomic (coronary CTA) and functional (stress testing) strategies, including diagnostic test results, referral to invasive coronary angiography (ICA), coronary revascularization, incident major adverse cardiovascular event (MACE), and costs during 60 days and 2 years. The validated model was used to determine whether anatomic approaches are cost-effective over a lifetime compared with functional testing. Exposure: Choice of index test for evaluation of low-risk SCP. Main Outcomes and Measures: Downstream ICA and coronary revascularization, MACE (death, nonfatal myocardial infarction), cost, quality-adjusted life-years (QALYs), and incremental cost-effectiveness ratio (ICER) of competing strategies. Results: The model cohort included 10 003 individual patients (median [interquartile range] age, 60.0 [54.4-65.9] years; 5270 [52.7%] women; 7693 [77.4%] White individuals), who entered the model 100 times. The Markov model accurately estimated the test assignment, results of anatomic and functional index testing, referral to ICA, revascularization, MACE, and costs at 60 days and 2 years compared with observed data in PROMISE (eg, coronary CTA: ICA, 12.2% [95% CI, 10.9%-13.5%] vs 12.3% [95% CI, 12.2%-12.4%]; revascularization, 6.2% [95% CI, 5.5%-6.9%] vs 6.4% [95% CI, 6.3%-6.5%]; functional strategy: ICA, 8.1% [95% CI, 7.4%-8.9%] vs 8.2% [95% CI, 8.1%-8.3%]; revascularization, 3.2% [95% CI, 2.7%-3.7%] vs 3.3% [95% CI, 3.2%-3.4%]; 2-year MACE rates: coronary CTA, 2.1% [95% CI, 1.7%-2.5%] vs 2.3% [95% CI, 2.2%-2.4%]; functional strategy, 2.2% [95% CI, 1.8%-2.6%] vs 2.4% [95% CI, 2.3%-2.4%]). Anatomic approaches led to higher ICA and revascularization rates at 60 days, 2 years, and 5 years compared with functional testing but were more effective in patient selection for ICA (eg, 60-day revascularization-to-ICA ratio, CTA: 53.7% [95% CI, 53.3%-54.0%]; CTA with FFRCT: 59.5% [95% CI, 59.2%-59.8%]; functional testing: 40.7% [95% CI, 40.4%-50.0%]). Over a lifetime, anatomic approaches gained an additional 6 months in perfect health compared with functional testing (CTA, 25.16 [95% CI, 25.14-25.19] QALYs; CTA with FFRCT, 25.14 [95% CI, 25.12-25.17] QALYs; functional testing, 24.68 [95% CI, 24.66-24.70] QALYs). Anatomic strategies were less costly and more effective; thus, CTA with FFRCT dominated and CTA alone was cost-effective (ICERs ranged from $1912/QALY for women and $3,559/QALY for men) compared with functional testing. In probabilistic sensitivity analyses, anatomic approaches were cost-effective in more than 65% of scenarios, assuming a willingness-to-pay threshold of $100 000/QALY. Conclusions and Relevance: The results of this study suggest that anatomic strategies may present a more favorable initial diagnostic option in the evaluation of low-risk SCP compared with functional testing.


Assuntos
Dor no Peito/diagnóstico , Angiografia por Tomografia Computadorizada , Estenose Coronária/diagnóstico , Vasos Coronários/diagnóstico por imagem , Teste de Esforço , Reserva Fracionada de Fluxo Miocárdico , Revascularização Miocárdica , Angiografia por Tomografia Computadorizada/economia , Angiografia por Tomografia Computadorizada/métodos , Estenose Coronária/fisiopatologia , Análise Custo-Benefício/métodos , Teste de Esforço/economia , Teste de Esforço/métodos , Feminino , Humanos , Masculino , Cadeias de Markov , Pessoa de Meia-Idade , Modelos Teóricos , Revascularização Miocárdica/métodos , Revascularização Miocárdica/estatística & dados numéricos , Avaliação de Resultados em Cuidados de Saúde , Prognóstico , Medição de Risco/economia , Medição de Risco/métodos
4.
Can J Cardiol ; 36(10): 1633-1640, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32416066

RESUMO

BACKGROUND: It is uncertain whether beta-blockers (BBs) are beneficial in contemporary stable patients with prior myocardial infarction (MI). Therefore, we sought to examine the effectiveness of BB use in this population. METHODS: We conducted a cohort study with the use of administrative databases of patients ≥ 65 years of age, alive on April 1, 2012 (index date) with a hospital discharge diagnosis of MI within the previous 3 years. The primary outcome was time to death or hospitalization for MI or angina 1 year after the index date, with inverse probability of treatment weighting. RESULTS: We included 33,811 patients with prior MI, of whom 21,440 (63.4%) were dispensed a BB. The median age was 78 years, and 56% were male. There was no difference in the 1-year hazard of death/hospitalization for MI or angina (14.8% vs 14.7%, hazard ratio 1.00, 95% confidence interval 0.94-1.07; P = 0.90) in those receiving vs not receiving BB. Similarly, there was no difference in the individual end points in composite nor in 3-year outcomes. Subgroup analysis by age, sex, MI timing, MI type, heart failure, and atrial fibrillation found no benefit. Patients with a history of revascularisation treated with BBs had a lower rate of the composite outcome compared with those without such history (P = 0.006 for interaction) at 1 year but not at 3 years. CONCLUSIONS: In this large contemporary population-based observational study of older stable patients with prior MI, BBs were not associated with a reduction in major cardiovascular events or mortality in those with MI within the previous 3 years. This study supports the need to conduct contemporary clinical trials evaluating the use of BBs after MI.


Assuntos
Antagonistas Adrenérgicos beta/uso terapêutico , Fibrilação Atrial , Insuficiência Cardíaca , Efeitos Adversos de Longa Duração , Infarto do Miocárdio , Revascularização Miocárdica , Idoso , Fibrilação Atrial/diagnóstico , Fibrilação Atrial/epidemiologia , Fibrilação Atrial/etiologia , Fibrilação Atrial/prevenção & controle , Canadá/epidemiologia , Feminino , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/epidemiologia , Insuficiência Cardíaca/etiologia , Insuficiência Cardíaca/prevenção & controle , Humanos , Efeitos Adversos de Longa Duração/diagnóstico , Efeitos Adversos de Longa Duração/mortalidade , Efeitos Adversos de Longa Duração/prevenção & controle , Masculino , Conduta do Tratamento Medicamentoso/estatística & dados numéricos , Mortalidade , Infarto do Miocárdio/complicações , Infarto do Miocárdio/epidemiologia , Infarto do Miocárdio/terapia , Revascularização Miocárdica/métodos , Revascularização Miocárdica/estatística & dados numéricos , Alta do Paciente/estatística & dados numéricos , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento
5.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-32273238

RESUMO

OBJECTIVE: The aim was to analyze the cost-effectiveness ratio (CER) of stress electrocardiogram (ES) and stress myocardial perfusion imaging (SPECT-MPI) according to coronary revascularization (CR) therapy, cardiac events (CE) and total mortality (TM). MATERIAL AND METHODS: A total of 8,496 consecutive patients who underwent SPECT-MPI were followed-up (mean 5.3±3.5years). Cost-effectiveness for coronary bypass (CABG) or percutaneous CR (PCR) (45.6%/54.4%) according to combined electrocardiographic ischemia and scintigraphic ischemia were evaluated. Effectiveness was evaluated as TM, CE, life-year saved observed (LYSO) and CE-LYSO; costs analyses were conducted from the perspective of the health care payer. A sensitivity analysis was performed considering current CABG/PCR ratios (12%/88%). RESULTS: When electrocardiogram and SPECT approaches are combined, the cost-effectiveness values for CABG ranged between 112,589€ (electrocardiographic and scintigraphic ischemia) and 2,814,715€ (without ischemia)/event avoided, 38,664 and 2,221,559€/LYSO; for PCR ranged between 18,824€ (electrocardiographic and scintigraphic ischemia) and 46,377€ (without ischemia)/event avoided, 6,464 and 36,604€/LYSO. To CE: the cost-effectiveness values of the CABG and CPR in presence of electrocardiographic and scintigraphic ischemia were 269,904€/CE-avoided and 24,428€/CE-avoided, respectively; and the €/LYSO of the CABG and PCR were 152,488 and 13,801, respectively. The RCE was maintained for the current proportion of revascularized patients (12%/88%). CONCLUSIONS: Combined ES and SPECT-MPI results, allows differentiation between patient groups, where the PCR and CABG are more cost-effective in different economic frameworks. The major CER in relation to CR, CE and TM occurs in patients with electrocardiographic and scintigraphic ischemia. PCR is more cost-effective than CABG.


Assuntos
Teste de Esforço/economia , Isquemia Miocárdica/diagnóstico por imagem , Imagem de Perfusão do Miocárdio/economia , Revascularização Miocárdica/economia , Tomografia Computadorizada de Emissão de Fóton Único/economia , Idoso , Doenças Cardiovasculares/mortalidade , Ponte de Artéria Coronária/economia , Análise Custo-Benefício , Teste de Esforço/métodos , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/epidemiologia , Isquemia Miocárdica/cirurgia , Isquemia Miocárdica/terapia , Imagem de Perfusão do Miocárdio/métodos , Revascularização Miocárdica/métodos , Readmissão do Paciente/estatística & dados numéricos , Intervenção Coronária Percutânea/economia , Estudos Prospectivos , Anos de Vida Ajustados por Qualidade de Vida , Recidiva , Descanso , Sensibilidade e Especificidade , Tomografia Computadorizada de Emissão de Fóton Único/métodos
7.
Innovations (Phila) ; 14(2): 144-150, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30885086

RESUMO

OBJECTIVE: The da Vinci Xi surgical system (Intuitive Surgical, Sunnyvale, CA, USA) cannot give tactile feedback to surgeons. This shortcoming may increase the risk of left internal thoracic artery (LITA) injury during its harvest. We utilized Firefly Fluorescence Imaging (Firefly) to assess LITA quality in robot-assisted minimally invasive direct coronary artery bypass (R-MIDCAB). METHODS: We retrospectively reviewed clinical records and intraoperative videos of 30 consecutive patients who underwent R-MIDCAB with LITA-left anterior descending (LAD) coronary bypass. All patients had post-harvest assessment of LITA blood flow by Firefly with 1 mL (2.5 mg/mL) of indocyanine green injection through a central line. RESULTS: Twenty-seven of the patients were male, mean age was 67.7 ± 10.7 years. In post-harvest assessment performed before transection of the distal LITA, blood flow in LITA was well visualized in 28 patients. In the remaining 2 patients, 1 had dissection and the other had severe spasm of the LITA. Firefly was also useful for locating LITA and LAD and for assessing blood flow of the graft after anastomosis. Time required for each Firefly assessment was approximately 20 seconds. There were no side effects or complications due to Firefly intraoperatively and postoperatively. Twenty-six patients had postoperative coronary computed tomography; LITA patency rate was 100% (26/26). CONCLUSION: Firefly is fast, simple, and effective for locating and assessing flow in LITA and LAD before and after anastomosis in R-MIDCAB.


Assuntos
Ponte de Artéria Coronária/métodos , Vasos Coronários/cirurgia , Anastomose de Artéria Torácica Interna-Coronária/métodos , Artéria Torácica Interna/transplante , Idoso , Anastomose Cirúrgica , Angiografia Coronária/métodos , Vasos Coronários/diagnóstico por imagem , Feminino , Humanos , Masculino , Artéria Torácica Interna/cirurgia , Pessoa de Meia-Idade , Procedimentos Cirúrgicos Minimamente Invasivos/métodos , Revascularização Miocárdica/instrumentação , Revascularização Miocárdica/métodos , Imagem Óptica/métodos , Período Pós-Operatório , Estudos Retrospectivos , Robótica
8.
Int. j. cardiovasc. sci. (Impr.) ; 32(1): 28-34, jan.-fev. 2019. tab
Artigo em Inglês | LILACS | ID: biblio-981527

RESUMO

Background: Coronary artery bypass grafting (CABG) is an important treatment option for obstructive coronary artery disease, but it represents a high expense for paying sources.The complications of CABG impose an additional expense to the procedure that is not yet clearly established. Objective: To determine the economic impact of postoperative complications of CABG during hospitalization in a hospital of the unified health system (SUS). Methods: This is an observational study involving 240 patients undergoing isolated CABG in a reference hospital in cardiology in 2013. Patients aged over 30 years with proven coronary artery disease and indication to perform CRVM were included. Patients who performed CRVM associated with other procedures were excluded. Results: The average cost of hospitalization was R$ 22,647.24 (SD = R$ 28,105.66). In 97 patients who presented some complication the average cost was R$ 35,400.28 (SD = R$ 40,509.47), and in the 143 patients without complications the average cost was R$ 13,996.57 (SD = R$ 5,800.61) (p < 0.001). Expenditures ranged from R$ 17,344.37 in patients with one complication up to R$ 104,596.52 in patients with five complications (p < 0.001). Conclusions: The occurrence of complications during hospitalization for CABG dignificantly increases the costs of the procedure, but the magnitude of this increase depends on the type of complication developed, and higher expenses related to cardiovascular complications, infections and bleeding. With this information, managers can improve the allocation of resources to health


Assuntos
Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Hospitalização/economia , Revascularização Miocárdica/economia , Revascularização Miocárdica/métodos , Arritmias Cardíacas/complicações , Cuidados Pós-Operatórios/métodos , Sistema Único de Saúde , Doença da Artéria Coronariana , Doenças Cardiovasculares/economia , Doenças Cardiovasculares/mortalidade , Infecção Hospitalar , Interpretação Estatística de Dados , Estudos Retrospectivos , Análise de Variância
9.
Rev. bras. enferm ; 71(4): 1817-1824, Jul.-Aug. 2018. tab
Artigo em Inglês | LILACS, BDENF | ID: biblio-958671

RESUMO

ABSTRACT Objective: To understand the intervening factors in the process of reference and counter-reference of the individual with heart disease in the scenario of high complexity in the health care network. Method: Research anchored in the Grounded Theory (Teoria Fundamentada nos Dados). It totaled 21 participants. The data collection scenario was a cardiovascular reference hospital in the south of Brazil and occurred between March and June 2014. Results: The intervening factors in the reference process were the difficulty to access the points of the network and telemedicine and the central to manage the flow of patients in the network. In the counter-reference, there was a link with the hospital and the lack of communication among network professionals. Conclusion: It reveals the need to reorganize the service flow in HCN, enhancing PHC, expanding the performance of medium complexity and increasing the capacity of high complexity in order to carry out the process of reference and counter-reference.


RESUMEN Objetivo: Comprender los factores interventores en el proceso de referencia y contrarreferencia del individuo con cardiopatía en el escenario de la alta complejidad en la red de atención a la salud. Métodos: Investigación anclada en la Teoría Fundamentada en Datos. Totalizó a 21 participantes. El escenario de recolección de datos fue un hospital referencia cardiovascular en el sur de Brasil y ocurrió entre marzo y junio de 2014. Resultados: Se evidencia como factores interventores en el proceso de referencia la dificultad del acceso a los puntos de la red y la telemedicina y la central de regulación para gestión del flujo de pacientes en la red. En la contrarreferencia, el vínculo con el hospital y la ausencia de comunicación entre los profesionales de la red. Conclusión: Se revela la necesidad de reorganización del flujo de atención en la RAS, potenciando la APS, expandiendo la actuación de la media complejidad y ampliando la capacidad de la alta complejidad a fin de ejecutar el proceso de referencia y contrarreferencia.


RESUMO Objetivo: Compreender os fatores interventores no processo de referência e contrarreferência do indivíduo com cardiopatia no cenário da alta complexidade na rede de atenção à saúde. Métodos: Pesquisa ancorada na Teoria Fundamentada nos Dados. Totalizou 21 participantes. O cenário de coleta de dados foi um hospital referência cardiovascular no sul do Brasil e ocorreu entre março e junho de 2014. Resultados: Evidencia-se como fatores interventores no processo de referência a dificuldade de acesso aos pontos da rede e a telemedicina e a central de regulação para gestão do fluxo de pacientes na rede. Na contrarreferência, o vínculo com o hospital e a ausência de comunicação entre os profissionais da rede. Conclusão: Revela a necessidade de reorganização do fluxo de atendimento na RAS, potencializando a APS, expandindo a atuação da média complexidade e ampliando a capacidade da alta complexidade a fim de efetivar o processo de referência e contrarreferência.


Assuntos
Humanos , Revascularização Miocárdica/efeitos adversos , Revascularização Miocárdica/psicologia , Brasil , Ponte de Artéria Coronária/métodos , Ponte de Artéria Coronária/normas , Ponte de Artéria Coronária/psicologia , Continuidade da Assistência ao Paciente/normas , Pesquisa Qualitativa , Teoria Fundamentada , Acesso aos Serviços de Saúde , Revascularização Miocárdica/métodos
10.
Int J Cardiol ; 268: 45-50, 2018 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-30041802

RESUMO

AIM: To review the current approaches to simplify functional assessment of coronary stenosis with particular regard for contrast Fractional Flow Reserve (cFFR). METHODS AND RESULTS: Maximal hyperaemia to assess FFR is perceived as time-consuming, costly, unpleasant for the patient and associated with side effects. Resting indexes, like Pd/Pa and iFR, have been proposed to circumvent the use of vasodilators as well as an approach based on the administration of contrast medium to induce coronary vasodilation, the cFFR. Contrast FFR can be obtained quickly, at very low cost in the absence of substantial side effects. Among these alternative indexes, cFFR shows the best correlation with FFR, reduces the use of adenosine even more than a hybrid resting approach but has not yet been tested in a randomized, controlled trial with clinical end-points. CONCLUSION: cFFR represents a cheap, safe and effective alternative to FFR, able to facilitate the dissemination of a functional approach to myocardial revascularization.


Assuntos
Meios de Contraste/administração & dosagem , Estenose Coronária/fisiopatologia , Reserva Fracionada de Fluxo Miocárdico/fisiologia , Hiperemia/fisiopatologia , Revascularização Miocárdica/métodos , Vasodilatadores/administração & dosagem , Estenose Coronária/diagnóstico , Reserva Fracionada de Fluxo Miocárdico/efeitos dos fármacos , Humanos , Hiperemia/diagnóstico , Revascularização Miocárdica/efeitos adversos
11.
Int J Cardiol ; 267: 202-207, 2018 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-29859707

RESUMO

AIM: Whether myocardial ischemia identified using myocardial perfusion imaging (MPI) can be an alternative target of coronary revascularization to reduce the incidence of cardiac events remains unclear. METHODS AND RESULTS: This multicenter, prospective cohort study aimed to clarify the prognostic impact of reducing myocardial ischemia. Among 494 registered patients with possible or definite coronary artery disease (CAD), 298 underwent initial pharmacological stress 99mTc-tetrofosmin MPI before, and eight months after revascularization or medical therapy, and were followed up for at least one year. Among these, 114 with at least 5% ischemia at initial MPI were investigated. The primary endpoints were cardiac death, non-fatal myocardial infarction and hospitalization for heart failure. Ischemia was reduced ≥5% in 92 patients. Coronary revascularization reduced ischemia (n = 89) more effectively than medical therapy (n = 25). Post-stress cardiac function also improved after coronary revascularization. Ejection fraction significantly improved at stress (61.0% ±â€¯10.7% vs. 65.4% ±â€¯11.3%; p < 0.001) but not at rest (67.1% ±â€¯11.3% vs. 68.3% ±â€¯11.6%; p = 0.144), among patients who underwent revascularization. Rates of coronary revascularization and cardiac events among the 114 patients were significantly higher (13.6%, p = 0.035) and lower (1.1% p = 0.0053), respectively, in patients with, than without ≥5% ischemia reduction. Moreover, patients with complete resolution of ischemia at the time of the second MPI had a significantly better prognosis. CONCLUSIONS: Reducing ischemia by ≥5% and the complete resolution of ischemia could improve the prognosis of patients with stable CAD.


Assuntos
Doença da Artéria Coronariana , Conduta do Tratamento Medicamentoso/estatística & dados numéricos , Isquemia Miocárdica , Imagem de Perfusão do Miocárdio/métodos , Revascularização Miocárdica , Tomografia Computadorizada de Emissão de Fóton Único/métodos , Idoso , Estudos de Coortes , Doença da Artéria Coronariana/complicações , Doença da Artéria Coronariana/diagnóstico , Doença da Artéria Coronariana/epidemiologia , Doença da Artéria Coronariana/fisiopatologia , Feminino , Testes de Função Cardíaca/métodos , Testes de Função Cardíaca/estatística & dados numéricos , Humanos , Japão/epidemiologia , Masculino , Pessoa de Meia-Idade , Isquemia Miocárdica/diagnóstico , Isquemia Miocárdica/mortalidade , Isquemia Miocárdica/fisiopatologia , Isquemia Miocárdica/prevenção & controle , Revascularização Miocárdica/métodos , Revascularização Miocárdica/estatística & dados numéricos , Avaliação de Processos e Resultados em Cuidados de Saúde , Valor Preditivo dos Testes , Prognóstico , Estudos Prospectivos , Resultado do Tratamento
12.
JAMA Cardiol ; 3(7): 609-618, 2018 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-29874382

RESUMO

Importance: Physicians often report practicing defensive medicine to reduce malpractice risk, including performing expensive but marginally beneficial tests and procedures. Although there is little evidence that malpractice reform affects overall health care spending, it may influence physician behavior for specific conditions involving clinical uncertainty. Objective: To examine whether reducing malpractice risk is associated with clinical decisions involving coronary artery disease testing and treatment. Design, Setting, and Participants: Difference-in-differences design, comparing physician-specific changes in coronary artery disease testing and treatment in 9 new-cap states that adopted damage caps between 2003 and 2005 with 20 states without caps. We used the 5% national Medicare fee-for-service random sample between 1999 and 2013. Physicians (n = 75 801; 36 647 in new-cap states) who ordered or performed 2 or more coronary angiographies. Data were analyzed from June 2015 to January 2018. Main Outcomes and Measures: Changes in ischemic evaluation rates for possible coronary artery disease, type of initial evaluation (stress testing or coronary angiography), progression from stress test to angiography, and progression from ischemic evaluation to revascularization (percutaneous coronary intervention or coronary artery bypass grafting). Results: We studied 36 647 physicians in new-cap states and 39 154 physicians in no-cap states. New-cap states had younger populations, more minorities, lower per-capita incomes, fewer physicians per capita, and lower managed care penetration. Following cap adoption, new-cap physicians reduced invasive testing (angiography) as a first diagnostic test compared with control physicians (relative change, -24%; 95% CI, -40% to -7%; P = .005) with an offsetting increase in noninvasive stress testing (7.8%; 95% CI, -3.6% to 19.3%; P = .17), and referred fewer patients for angiography following stress testing (-21%; 95% CI, -40% to -2%; P = .03). New-cap physicians also reduced revascularization rates after ischemic evaluation (-23%; 95% CI, -40% to -4%; P = .02; driven by fewer percutaneous coronary interventions). Changes in overall ischemic evaluation rates were similar for new-cap and control physicians (-0.05%; 95% CI, -8.0% to 7.9%; P = .98). Conclusions and Relevance: Physicians substantially altered their approach to coronary artery disease testing and follow-up after initial ischemic evaluations following adoption of damage caps. They performed a similar number of ischemic evaluations but conducted fewer initial left heart catheterizations, referred fewer stress-tested patients for left heart catheterizations, and referred fewer patients for revascularization. These findings suggest that physicians tolerate greater clinical uncertainty in coronary artery disease testing and treatment if they face lower malpractice risk.


Assuntos
Angiografia Coronária/métodos , Doença da Artéria Coronariana/diagnóstico , Gerenciamento Clínico , Reforma dos Serviços de Saúde/legislação & jurisprudência , Gastos em Saúde/estatística & dados numéricos , Responsabilidade Legal , Revascularização Miocárdica/métodos , Idoso , Doença da Artéria Coronariana/cirurgia , Teste de Esforço , Feminino , Humanos , Masculino , Imperícia/tendências , Estudos Retrospectivos , Estados Unidos
13.
Am Heart J ; 199: 22-30, 2018 05.
Artigo em Inglês | MEDLINE | ID: mdl-29754662

RESUMO

BACKGROUND: The lifetime risk of coronary artery disease (CAD) is doubled in people with a family history of premature disease, yet this risk is not captured in most 5- or 10-year risk assessment algorithms. Coronary artery calcium scoring (CCS) is a marker of subclinical CAD risk, which has been shown in observational studies to provide prognostic information that is incremental to clinical assessment; is relatively inexpensive; and is performed with a small radiation dose. However, the use of CCS in guiding prevention is not strongly supported by guidelines. Showing definitive evidence of the efficacy and cost-effectiveness of CCS is therefore of importance. STUDY DESIGN: The proposed randomized controlled trial of the use of CCS will be targeted to 40- to 70-year-old first-degree relatives of patients with CAD onset <60 years old or second-degree relatives of patients with onset <50 years old. Control patients will undergo standard risk scoring and be blinded to CCS results. In the intervention group, primary prevention in patients undergoing CCS will be informed by this score. At 3 years, effectiveness will be assessed on change in plaque volume at computed tomography coronary angiography, the extent of which has been strongly linked to outcome. SUMMARY: The CAUGHT-CAD trial will provide evidence to inform the guidelines regarding the place of CCS in decision making regarding primary prevention of patients with a family history of premature disease.


Assuntos
Doença da Artéria Coronariana/epidemiologia , Tomada de Decisões , Revascularização Miocárdica/métodos , Ensaios Clínicos Controlados Aleatórios como Assunto/métodos , Medição de Risco/métodos , Adulto , Idoso , Austrália/epidemiologia , Angiografia Coronária , Doença da Artéria Coronariana/diagnóstico , Doença da Artéria Coronariana/cirurgia , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Tomografia Computadorizada por Raios X
14.
Indian Heart J ; 70(2): 214-219, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29716697

RESUMO

OBJECTIVES: Isolated left main coronary artery (LMCA) ostial disease is a rare variant of LMCA disease. Earlier studies on this disease are limited by small number of patients enrolled. The aim of the present study was to analyze the incidence, risk factors, clinical profile and long term outcome of patients with isolated LMCA ostial disease. METHODS: 15,553 patients who underwent coronary angiogram in a single tertiary care cardiac hospital were analyzed for LMCA disease. 351(2.2%) patients were found to have significant LMCA disease out of which 28(0.18%) had isolated LMCA ostial disease. These 28 patients were compared with 323 non-ostial and non-isolated LMCA disease patients. RESULTS: The mean age of isolated LMCA ostial disease group was significantly less than the other group (p=0.009). Females were more affected than males (p=0.008). They also had low incidence of coronary risk factors (especially dyslipidemia, p=0.04). They tend to present more with stable angina and less with myocardial infarction. They had higher ejection fraction and normal regional wall motion (p=0.04). There was no mortality difference between two groups at the end of 1 year (p=0.234). CONCLUSION: In one of the largest studies done in these patients, we found that isolated LMCA ostial disease is more common in middle aged females with few coronary risk factors. These patients also had a better ejection fraction and normal regional wall motion compared to patients with non-ostial and non-isolated LMCA disease. The clinical and angiographic profile of these patients suggests that they may represent a distinct clinical entity.


Assuntos
Estenose Coronária/epidemiologia , Vasos Coronários/diagnóstico por imagem , Revascularização Miocárdica/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Angiografia Coronária , Estenose Coronária/diagnóstico , Estenose Coronária/cirurgia , Feminino , Humanos , Incidência , Índia/epidemiologia , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos , Fatores de Risco
15.
Medicine (Baltimore) ; 97(10): e9958, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29517703

RESUMO

BACKGROUND: Cardiomyopathies is a group of heart diseases that directly affects the heart muscle, and their causes is not just high blood pressure, congenital and pericardial diseases but ischemic cardiomyopathy disease are also caused by vascular disorders, and to confirm the diagnosis, angiography is required. There are several methods for treating and controlling ischemic cardiomyopathy in world health systems and especially in the Iran health system, which include medical treatment, percutaneous coronary intervention (PCI), and coronary artery bypass graft (CABG). METHODS: This systematic review will includes observational and interventional studies in English and Persian languages and evaluates effectiveness of revascularization interventions and medical therapy in patients with ischemic cardiomyopathy. Animal studies will not be considered. In this systematic review, our sources of information will be electronic databases, trial registries, and different types of grey literature. An electronic search is performed through PubMed, Cochrane library, Scopus, Web of Science, EMBASE, Tufts Medical Center Cost-Effectiveness Analysis Registry, NHS Economic Evaluations Database. To integrate the results of studies with similar results, meta-analysis will be used, for which Comprehensive Meta-Analysis (CMA) software will be used. Results are provided using relative risk with a 95% confidence interval for information. RESULTS: The results of this systematic review will be published in a peer-reviewed journal. CONCLUSION: To our knowledge, this systematic review will be the first to evaluate existing research on the effectiveness of revascularization interventions compared with medical therapy in patients with ischemic cardiomyopathy. The review will benefit patients, healthcare providers, and policymakers.


Assuntos
Cardiomiopatias/terapia , Isquemia Miocárdica/terapia , Revascularização Miocárdica/métodos , Intervenção Coronária Percutânea/métodos , Protocolos Clínicos , Humanos , Revisões Sistemáticas como Assunto , Resultado do Tratamento
16.
Int. j. cardiovasc. sci. (Impr.) ; 31(2): f:90-l:96, mar.-abr. 2018. tab, graf
Artigo em Inglês | LILACS | ID: biblio-881923

RESUMO

Background: Cardiovascular diseases are a major cause of mortality and morbidity. Myocardial revascularization surgery may be indicated for the relief of symptoms and to reduce mortality. However, surgery is a costly procedure and the impact of the number of cardiovascular risk factors on the cost of the procedure has not been established. Objectives: To identify the impact of risk factors for coronary artery disease on myocardial revascularization surgery cost. Methods: We selected 239 patients undergoing myocardial revascularization surgery at the National Institute of Cardiology in the period from 01 January to 31 December 2013. We included patients aged over 30 years, with indication for the procedure. Patients undergoing combined procedures were excluded. Results: Seven patients had only one risk factor, 32 patients had two risk factors, 75 patients had 3 risk factors, 78 patients had four risk factors, 36 patients had 5 risk factors and 11 patients presented 6 risk factors. The total costs, on average, was R$ 14,143.22 in the group with 1 risk factor, R$ 18,380.40 in the group with 2 risk factors, R$ 21,229.51 in the group with 3 risk factors, R$ 24,620.86 in the group with 4 risk factors, R$ 21,337.92 in the group with 5 risk factors and R$ 36,098,35 in the group with 6 risk factors (p = 0.441). Conclusion: This study demonstrates that, in a public referral center for highly complex cardiology procedures, there was no significant correlation between the number of cardiovascular risk factors and hospitalization costs


Fundamentos: As doenças cardiovasculares representam uma importante causa de mortalidade e morbidade. A cirurgia de revascularização do miocárdio pode ser indicada para o alívio dos sintomas e para diminuir a mortalidade. Entretanto, a cirurgia é um procedimento de custo elevado e não está estabelecido o impacto do número de fatores de risco cardiovasculares nos gastos do procedimento. Objetivos: Identificar o impacto dos fatores de risco para a doença arterial coronariana nos gastos com a cirurgia de revascularização do miocárdio. Métodos: Foram selecionados 239 pacientes submetidos à cirurgia de revascularização do miocárdio isolada no Instituto Nacional de Cardiologia no período entre 01 de Janeiro a 31 de Dezembro de 2013. Foram incluídos pacientes com idade superior a 30 anos e indicação de revascularização cirúrgica do miocárdio. Foram excluídos os pacientes submetidos a procedimentos combinados. Resultados: Sete pacientes apresentaram apenas 1 fator de risco, 32 pacientes apresentaram 2 fatores de risco, 75 pacientes apresentaram 3 fatores de risco, 78 pacientes apresentaram 4 fatores de risco, 36 pacientes apresentaram 5 fatores de risco e 11 pacientes apresentaram 6 fatores de risco. O total dos gastos, em média, foi de R$ 14 143,22 no grupo com 1 fator de risco, R$ 18 380,40 no grupo com 2 fatores de risco, R$ 21 229,51 no grupo com 3 fatores de risco, R$ 24 620,86 no grupo com 4 fatores de risco, R$ 21 337,92 no grupo com 5 fatores de risco e R$ 36 098,35 no grupo com 6 fatores de risco (p = 0,441). Conclusão: Este trabalho demonstra que, em uma unidade pública de referência para a realização de procedimentos cardiológicos de alta complexidade, não houve uma correlação significativa entre o número de fatores de risco cardiovascular e os custos da internação


Assuntos
Humanos , Masculino , Feminino , Doença da Artéria Coronariana/mortalidade , Custos Hospitalares , Revascularização Miocárdica/economia , Revascularização Miocárdica/métodos , Fatores de Risco , Sistema Único de Saúde , Brasil , Comorbidade , Diabetes Mellitus/diagnóstico , Custos de Medicamentos , Hipertensão/complicações , Prevalência , Estudos Prospectivos , Função Ventricular Esquerda
17.
Braz J Cardiovasc Surg ; 32(5): 383-389, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29211218

RESUMO

INTRODUCTION: Smoking is a serious public health issue, being a precursor of heart disease and a predictor of sudden death due to myocardial ischemia. Major events in the patient's health can lead to radical changes in habits and the choice for different myocardial revascularization methods might differently impact smoking cessation and relapse. OBJECTIVE: To study the rate and perpetuation of smoking cessation after myocardial revascularization comparing coronary artery bypass grafting (CABG) and percutaneous coronary intervention (PCI). METHODS: Smokers submitted to myocardial revascularization were divided into CABG and PCI groups. The research was conducted through interviews at the Hospital Santa Lucinda outpatient clinic. Patients with smoking cessation longer than 90 days before hospital admission, combined procedures, hospital readmission before 360 days after discharge, cases of death at any time, and emergency procedures were excluded from the study. The start of the smoking cessation period was determined as just after hospital discharge, with a follow-up of 12 months. RESULTS: The proportion of patients reporting smoking relapse was significantly lower in the CABG than in the PCI group at 30 (11.1% vs. 20.8%; P=0.039) and at 180 days (23.1% vs. 41.5%; P=0.002), but no differences were observed between the two groups at 360 days after hospital discharge (51.9% vs. 54.1%; P=0.719). High levels of nicotine dependence and passive smoking showed to be important predictors of smoking relapse in the long-term. CONCLUSION: The occurrence of a major surgical procedure seems to have beneficial psychological effects, representing an interesting setting for smoking cessation counseling to have higher chances of success.


Assuntos
Revascularização Miocárdica/métodos , Intervenção Coronária Percutânea/estatística & dados numéricos , Abandono do Hábito de Fumar/estatística & dados numéricos , Ponte de Artéria Coronária/estatística & dados numéricos , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Revascularização Miocárdica/estatística & dados numéricos , Fatores Socioeconômicos
18.
Dtsch Med Wochenschr ; 142(21): 1595-1603, 2017 Oct.
Artigo em Alemão | MEDLINE | ID: mdl-29046003

RESUMO

An invasive measurement of the fractional flow reserve (FFR) allows the valuation of the individual risk for ischemic events in patients with coronary artery disease. Therefore, FFR has become a valuable tool to guide coronary revascularisations. The cut-off value ≤ 0.80 has been validated in many different subsets of patients. However, FFR values describe a risk continuum with an inverse correlation between FFR value and the risk of events. So FFR should always be interpreted regarding the patient's clinical context, especially in patients with a high risk for rapid disease progression. As such, patients with diabetes mellitus and deferred revascularisation based on FFR > 0.80 had worse clinical outcomes compared to patients without diabetes. In addition, FFR shows methodical deficiencies concerning the quantification of serial stenoses as well as the valuation of residual ischemia of the culprit vessel early after myocardial infarction. This article highlights both the strengths and the pitfalls in the use and interpretation of FFR.


Assuntos
Doença das Coronárias/complicações , Complicações do Diabetes/fisiopatologia , Reserva Fracionada de Fluxo Miocárdico/fisiologia , Isquemia Miocárdica/terapia , Revascularização Miocárdica/métodos , Adenosina/efeitos adversos , Angina Estável/terapia , Contraindicações , Angiografia Coronária , Ponte de Artéria Coronária , Doença das Coronárias/terapia , Estenose Coronária/diagnóstico por imagem , Estenose Coronária/terapia , Análise Custo-Benefício , Humanos , Infarto do Miocárdio/terapia , Isquemia Miocárdica/complicações , Revascularização Miocárdica/normas , Valores de Referência , Medição de Risco , Stents , Ultrassonografia de Intervenção
19.
Rev. bras. cir. cardiovasc ; 32(5): 383-389, Sept.-Oct. 2017. tab, graf
Artigo em Inglês | LILACS | ID: biblio-897946

RESUMO

Abstract Introduction: Smoking is a serious public health issue, being a precursor of heart disease and a predictor of sudden death due to myocardial ischemia. Major events in the patient's health can lead to radical changes in habits and the choice for different myocardial revascularization methods might differently impact smoking cessation and relapse. Objective: To study the rate and perpetuation of smoking cessation after myocardial revascularization comparing coronary artery bypass grafting (CABG) and percutaneous coronary intervention (PCI). Methods: Smokers submitted to myocardial revascularization were divided into CABG and PCI groups. The research was conducted through interviews at the Hospital Santa Lucinda outpatient clinic. Patients with smoking cessation longer than 90 days before hospital admission, combined procedures, hospital readmission before 360 days after discharge, cases of death at any time, and emergency procedures were excluded from the study. The start of the smoking cessation period was determined as just after hospital discharge, with a follow-up of 12 months. Results: The proportion of patients reporting smoking relapse was significantly lower in the CABG than in the PCI group at 30 (11.1% vs. 20.8%; P=0.039) and at 180 days (23.1% vs. 41.5%; P=0.002), but no differences were observed between the two groups at 360 days after hospital discharge (51.9% vs. 54.1%; P=0.719). High levels of nicotine dependence and passive smoking showed to be important predictors of smoking relapse in the long-term. Conclusion: The occurrence of a major surgical procedure seems to have beneficial psychological effects, representing an interesting setting for smoking cessation counseling to have higher chances of success.


Assuntos
Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Abandono do Hábito de Fumar/estatística & dados numéricos , Intervenção Coronária Percutânea/estatística & dados numéricos , Revascularização Miocárdica/métodos , Fatores Socioeconômicos , Ponte de Artéria Coronária/estatística & dados numéricos , Estudos Transversais , Revascularização Miocárdica/estatística & dados numéricos
20.
Eur Heart J Qual Care Clin Outcomes ; 3(1): 74-82, 2017 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-28927186

RESUMO

Aims: This study is a prospective, observational 8-year follow-up of 300 stable unselected coronary artery disease patients entering elective coronary angiography in 2002-03. Recorded were clinical outcomes, health-related quality of life (HRQoL), and secondary care costs after coronary artery bypass graft (CABG) surgery, percutaneous coronary intervention (PCI), or medical therapy (MT). Methods and results: HRQoL was measured by the 15D instrument at baseline, 6 months, and 8 years. Regression techniques with an adjustment for relevant baseline characteristics were used to compare the 8-year survival and change in HRQoL between the groups. At baseline, all groups had statistically significantly impaired HRQoL compared with age- and gender-standardized general population. Six months after invasive interventions the mean HRQoL score had improved in a statistically significant and clinically important manner. This improvement was maintained at 8 years as the HRQoL no longer differed from that of the general population, whereas MT patients were still worse off. However, after adjustment for baseline characteristics, the groups no longer differed regarding 8-year survival or change in HRQoL among survivors. Mean 8-year secondary care costs were without (with) adjustment for baseline characteristics: €17 498 (16 730) for CABG, €7245 (6920) for PCI, and €4514 (4580) for MT, respectively. Conclusion: When adjusted for baseline characteristics, no statistically significant differences were found between the patient groups in 8-year survival or change in HRQoL among survivors. The 8-year mean secondary care costs of CABG were over two-fold and almost four-fold, even after adjustment for baseline characteristics, compared with those of PCI and MT.


Assuntos
Doença da Artéria Coronariana/terapia , Revascularização Miocárdica/métodos , Qualidade de Vida , Terapia Trombolítica/métodos , Idoso , Doença da Artéria Coronariana/economia , Doença da Artéria Coronariana/psicologia , Análise Custo-Benefício , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Revascularização Miocárdica/economia , Estudos Prospectivos , Anos de Vida Ajustados por Qualidade de Vida , Inquéritos e Questionários , Terapia Trombolítica/economia , Fatores de Tempo , Resultado do Tratamento
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA