Implementation of the myocardial infarction system of care in city of Belo Horizonte, Brazil.

BACKGROUND: The creation of an acute myocardial infarction (AMI) system of care aims to optimize the management of patients from early diagnosis to proper and timely treatment. OBJECTIVE: To assess the establishment of an AMI System of Care in the city of Belo Horizonte, state of Minas Gerais, and its impact on AMI in-hospital mortality. METHODS: The AMI system of care was established in the city of Belo Horizonte between 2010 and 2011, aiming at increasing the access of patients of the public health system to the treatment recommended by the existing guidelines. The teams at the emergency care units were trained, and the tele-electrocardiography system was implanted in those units. The primary outcomes of this retrospective observational study were the number of admissions and AMI in-hospital mortality, from 2009 to 2011. RESULTS: During the study period, 294 professionals were trained and 563 electrocardiograms (ECGs) transmitted from emergency care units to coronary care units. A significant reduction was observed in the in-hospital mortality rate (12.3% in 2009 versus 7.1% in 2011, p < 0.001), while the number of admissions due to AMI remained stable. The mean cost of admission increased (mean R$ 2,480.00 versus R$ 3,501.00; p < 0.001), the proportion of admissions including intensive care unit stay increased (32.4% in 2009 versus 66.1% in 2011; p < 0.001), and the number of patients admitted to tertiary hospitals increased (47.0% versus 69.6%; p < 0.001). CONCLUSION: The establishment of the AMI system of care improved the access of the population to proper treatment, thus reducing AMI in-hospital mortality. [corrected].

Implantação da linha de cuidado do infarto agudo do miocárdio no município de Belo Horizonte / Implementation of the myocardial infarction system of care in city of Belo Horizonte, Brazil

FUNDAMENTO: A criação de sistemas ou linhas de cuidado ao infarto agudo do miocárdio (IAM) tem o objetivo de otimizar o atendimento ao paciente, desde o diagnóstico precoce até o tratamento adequado e em tempo hábil. OBJETIVO: Avaliar a implantação da linha de cuidado do IAM, em Belo Horizonte, Minas Gerais, e seu impacto na mortalidade hospitalar por IAM. MÉTODOS: A linha de cuidado do IAM foi implantada em Belo Horizonte entre 2010 e 2011 com intuito de ampliar o acesso dos pacientes do sistema público de saúde ao tratamento preconizado pelas diretrizes vigentes. As equipes das unidades de pronto atendimento foram treinadas e foi implantado sistema de tele-eletrocardiografia nessas unidades. Os desfechos primários deste estudo observacional retrospectivo foram o número de internações e a mortalidade hospitalar por IAM, de 2009 a 2011. RESULTADOS: No período avaliado, 294 profissionais foram treinados e 563 ECGs foram transmitidos das unidades de pronto atendimento para as unidades coronarianas. Houve redução importante da taxa de mortalidade hospitalar (12,3% em 2009 versus 7,1% em 2011, p < 0,001), enquanto o número de internações por IAM permaneceu estável. Ocorreu aumento do custo médio de internação (média R$ 2.480,00 versus R$ 3.501,00, p < 0,001), aumento da proporção de internações contemplando diárias de terapia intensiva (32,4% em 2009 versus 66,1% em 2011, p < 0,001) e de pacientes internados em hospitais de alta complexidade (47,0% versus 69,6%, p < 0,001). CONCLUSÃO: A implantação da linha de cuidado do IAM permitiu maior acesso da população ao tratamento adequado e, consequentemente, redução na mortalidade hospitalar por IAM.

BACKGROUND:The creation of an acute myocardial infarction (AMI) management systems is aimed at optimizing the management of patients from early diagnosis to proper and timely treatment. OBJECTIVE: To assess the implantation of an AMI management system in the municipality of Belo Horizonte, state of Minas Gerais, and its impact on in-hospital mortality due to AMI. METHODS: The AMI management system was implanted in the municipality of Belo Horizonte between 2010 and 2011, aiming at increasing the access of patients of the public health system to the treatment recommended by the existing guidelines. The teams at the prompt care units were trained, and the system of tele-electrocardiography was implanted in those units. The primary outcomes of this retrospective observational study were the number of admissions and in-hospital mortality due to AMI, from 2009 to 2011. RESULTS: In the period studied, 294 professionals were trained and 563 electrocardiograms (ECGs) transmitted from prompt care units to coronary units. A significant reduction was observed in the in-hospital mortality rate (12.3% in 2009 versus 7.1% in 2011, p < 0.001), while the number of admissions due to AMI remained stable. The mean cost of admission increased (mean R$ 2,480.00 versus R$ 3,501.00; p < 0.001), the proportion of admissions including intensive care unit stay increased (32.4% in 2009 versus 66.1% in 2011; p < 0.001), and the number of patients admitted to tertiary hospitals increased (47.0% versus 69.6%; p < 0.001). CONCLUSION: The AMI management system implantation increased the access of the population to proper treatment, thus reducing in-hospital mortality due to AMI.

A importância da criação de rede de cuidado para o tratamento do IAM com supra de ST e a experiência da Unidade Coronariana do Hospital das Clínicas / UFMG / The importance of creating a health care network to treat myocardial infarction with ST segment elevation and the experience of the Coronary Unit of UFMG University Hospital

O infarto com supradesnivelamento do segmento ST (IAMCSST) é uma importante causa de morbimortalidade no Brasil. O tratamento ideal para o IAMCSST depende principalmente do diagnóstico precoce e da rápida seleção de estratégia de reperfusão apropriada. A angioplastia coronária percutânea (ICP) primária é a estratégia de escolha em hospitais com serviço de hemodinâmica. Em hospitais sem esse serviço, duas estratégias de reperfusão são possíveis: transferência para ICP primária ou terapia com trombolíticos. A ICP primária apresenta melhores resultados, com redução de eventos cardiovasculares, entretanto, essa vantagem pode ser perdida, dependendo do tempo de atraso para transferência. A criação de rede de cuidado para pacientes com IAMCSST é um desafio para nosso município e pretende possibilitar o acesso à terapia de reperfusão em tempo adequado, levando em consideração as condições clínicas do paciente e do sistema de saúde em que ele é atendido.

Myocardial infarction with ST segment elevation is one of the major causes of morbimortality in Brazil. The ideal treatment for the disease depends mostly on early diagnosis and choice of adequate reperfusion strategy. Primary percutaneous coronary angioplasty (PCI) is a strategywidely adopted in hospitals that provide cardiac services, whereas hospitals without such services usually adopt either transfer for PCI or therapy with thrombolytic drugs. Primary PCI usually provides better results, reducing cardiovascular events, but this may not be effective in the event of significant transference delay. The creation of a health care network for patients with the disease is a challenge in our Municipality that can provide access to reperfusion therapy as soon as possible considering both patients? clinical conditions and health insurance.

Correlation between NT-pro BNP levels and early mitral annulus velocity (E') in patients with non-ST-segment elevation acute coronary syndrome.

UNLABELLED: Acute coronary syndromes in the absence of ST-segment elevation (NSTE-ACS) are a heterogeneous entity in which early risk stratification is essential. Diastolic dysfunction is precocious and associated with poor prognosis. BNP has been recognized as a biochemical marker of ventricular dysfunction and ischemia. OBJECTIVE: To investigate if there is correlation of NT pro-BNP levels with diastolic dysfunction in patients with NSTE-ACS. METHODS: Fifty-two patients with NSTE-ACS admitted to the coronary unit were included. NT-pro brain natriuretic hormone (BNP) levels and a Doppler echocardiogram were obtained in all and systolic and diastolic functions were analyzed. Their Doppler indexes were compared with those of 53 age- and sex-matched controls, without heart failure symptoms and with normal ejection fraction (EF) and normal NT-pro BNP levels. RESULTS: Twenty-four patients (46%) with unstable angina and 28 patients (54%) with acute myocardial infarction (AMI) were included. Mean EF was 55.9 +/- 10.7% and mean NT-pro BNP level was 835 +/- 989 pg/ml. No mitral or pulmonary venous flow parameters of diastolic function correlated with NT-pro BNP levels. E'/A' correlated with NT-pro BNP level in univariate analysis but, in a multivariate analysis, only the EF and the E' showed negative correlation with the peptide level (r =-0.33, P = 0.024 and r =-0.29, P = 0.045, respectively). Thirteen patients presented with stage II diastolic dysfunction but the NT-pro BNP level in these patients did not differ from the level in stage I patients. CONCLUSION: NT-pro BNP levels are elevated in acute coronary syndromes, even in the absence of significant necrosis. Of all echocardiographic parameters investigated, only E' and the EF correlated with the levels of NT-pro BNP in this group of patients.