ABSTRACT
PURPOSE OF REVIEW: HEARTS in the Americas is the regional adaptation of Global Hearts, the World Health Organization initiative for cardiovascular disease (CVD) prevention and control. Its overarching goal is to drive health services to change managerial and clinical practice in primary care settings to improve hypertension control and CVD risk management. This review describes the HEARTS in the Americas initiative. First, the regional epidemiological situation of CVD mortality and population hypertension control trends are summarized; then the rationale for its main intervention components: the primary care-oriented management system and the HEARTS Clinical Pathway are described. Finally, the key factors for accelerating the expansion of HEARTS are examined: medicines, team-based care, and a system for monitoring and evaluation. RECENT FINDINGS: Thus far, 33 countries in Latin America and the Caribbean have committed to integrating this program across their primary healthcare network by 2025. The increase in hypertension coverage and control in primary health care settings compared with the traditional model is promising and confirms that the interventions under the HEARTS umbrella are feasible and acceptable to communities, patients, providers, decision-makers, and funders. This review highlights some cases of successful implementation. Scaling up effective treatment for hypertension and optimization of CVD risk management is a pragmatic way to accelerate the reduction of CVD mortality while strengthening primary healthcare systems to respond effectively, with quality, and equitably, to the challenge of non-communicable diseases, not only in low-middle income countries but in all communities globally.
Subject(s)
Hypertension , Humans , Hypertension/drug therapy , Hypertension/epidemiology , Hypertension/prevention & control , Delivery of Health CareABSTRACT
Purpose of review: HEARTS in the Americas is the regional adaptation of Global Hearts, the World Health Organization initiative for cardiovascular disease (CVD) prevention and control. Its overarching goal is to drive health services to change managerial and clinical practice in primary care settings to improve hypertension control and CVD risk management. This review describes the HEARTS in the Americas initiative. First, the regional epidemiological situation of CVD mortality and population hypertension control trends are summarized; then the rationale for its main intervention components: the primary care-oriented management system and the HEARTS Clinical Pathway are described. Finally, the key factors for accelerating the expansion of HEARTS are examined: medicines, team-based care, and a system for monitoring and evaluation. Recent findings: Thus far, 33 countries in Latin America and the Caribbean have committed to integrating this program across their primary healthcare network by 2025. The increase in hypertension coverage and control in primary health care settings compared with the traditional model is promising and confirms that the interventions under the HEARTS umbrella are feasible and acceptable to communities, patients, providers, decision-makers, and funders. This review highlights some cases of successful implementation. Summary: Scaling up effective treatment for hypertension and optimization of CVD risk management is a pragmatic way to accelerate the reduction of CVD mortality while strengthening primary healthcare systems to respond effectively, with quality, and equitably, to the challenge of non-communicable diseases, not only in low-middle income countries but in all communities globally.
Propósito da revisão: HEARTS nas Américas é uma adaptação regional da iniciativa mundial HEARTS, da Organização Mundial da Saúde, voltada para prevenção e controle das doenças cardiovasculares (DCV) na Região das Américas. Seu objetivo geral é promover mudanças na prática clínica e na gestão da atenção primária pelos serviços de saúde a fim de melhorar o controle da hipertensão arterial e reduzir o risco de DCV. Esta revisão descreve a iniciativa HEARTS nas Américas. Primeiro, é apresentado um resumo da situação epidemiológica regional relativa à mortalidade por DCV e das tendências no controle da hipertensão arterial em nível populacional. Em seguida, são explicados os motivos por trás dos principais componentes da intervenção: o sistema de manejo focado na atenção primária e o componente clínico da HEARTS. Por fim, são examinados os principais fatores para acelerar a ampliação da HEARTS: medicamentos, atenção baseada no trabalho em equipe e um sistema de monitoramento e avaliação. Resultados recentes: Até o momento, 33 países e territórios da América Latina e do Caribe se comprometeram a integrar esse programa em toda sua rede de atenção primária à saúde até 2025. Comparado com o modelo tradicional, o aumento da cobertura e do controle da hipertensão arterial nos ambientes de atenção primária à saúde é promissor e confirma que as intervenções promovidas pela HEARTS são exequíveis e aceitas por comunidades, pacientes, prestadores de serviços de saúde, tomadores de decisão e financiadores. Nesta revisão, destacamos alguns casos nos quais a implementação foi satisfatória. Conclusões: Ampliar a aplicação de um tratamento eficaz contra a hipertensão arterial e otimizar o controle do risco de DCV são medidas pragmáticas para acelerar a redução da mortalidade por DCV e, ao mesmo tempo, fortalecer os sistemas de atenção primária à saúde para responder com qualidade, eficácia e equidade ao desafio apresentado pelas doenças não transmissíveis, não apenas nos países de baixa ou média renda, mas no mundo todo.
ABSTRACT
Hypertension remains the leading cause of cardiovascular disease globally despite the availability of safe and effective treatments. Unfortunately, many barriers exist to controlling hypertension, including a lack of effective screening and awareness, an inability to access treatment and challenges with its management when it is treated. Addressing these barriers is complex and requires engaging in a systematic and sustained approach across communities over time. This analysis aims to describe the key elements needed to create an effective delivery system for hypertension control. A successful system requires political will and supportive leadership at all levels of an organization, including at the point of care delivery (office or clinic), in the health care system, and at regional, state and national levels. Effective screening and outreach systems are necessary to identify individuals not previously diagnosed with hypertension, and a system for follow up and tracking is needed after people are diagnosed. Implementing simple protocols for treating hypertension can reduce confusion among providers and increase treatment efficiency. Ensuring easy access to safe, effective and affordable medications can increase blood pressure control and potentially decrease health care system costs. Task-sharing among members of the health care team can expand the services that are delivered. Finally, monitoring of and reporting on the performance of the health care team are needed to learn from those who are doing well, disseminate ideas to those in need of improvement and identify individual patients who need outreach or additional care. Successful large-scale hypertension programs in different settings share many of these key elements and serve as examples to improve systems of hypertension care delivery throughout the world.
A pesar de la disponibilidad de tratamientos seguros y efectivos, la hipertensión sigue siendo la principal causa de enfermedad cardiovascular a nivel mundial. Lamentablemente, el control de la hipertensión enfrenta muchos obstáculos, como la falta de detección y concientización efectivas, la incapacidad de acceder al tratamiento y los retos que plantea su manejo cuando se recibe tratamiento. Resulta complejo abordar estos obstáculos; se debe adoptar un enfoque sistemático y sostenido en todas las comunidades a lo largo del tiempo. El presente análisis tiene como objetivo describir los elementos clave necesarios para crear un sistema de atención eficaz para el control de la hipertensión. Un sistema adecuado precisa voluntad política y un liderazgo que brinde apoyo en todos los niveles de una organización, incluido el punto donde se presta la atención (consultorio o clínica), el sistema de atención de salud y a nivel regional, estatal y nacional. Se necesitan sistemas efectivos de detección y de alcance comunitario para encontrar a las personas sin diagnóstico previo de hipertensión, así como un sistema para el seguimiento y la localización una vez han sido diagnosticadas. La aplicación de protocolos simples para tratar la hipertensión puede reducir la confusión entre los proveedores y aumentar la eficiencia del tratamiento. Garantizar un acceso fácil a medicamentos seguros, efectivos y asequibles puede aumentar el control de la presión arterial y potencialmente disminuir los costos para el sistema de atención de salud. La distribución de tareas entre los miembros del equipo de atención de salud permite expandir los servicios que se prestan. Finalmente, es necesario dar seguimiento al desempeño del equipo de atención de salud y presentar información al respecto, a fin de aprender de las buenas prácticas, difundir ideas entre quienes necesitan mejorar y determinar a cuáles pacientes se debe llegar y cuáles necesitan atención adicional. Los programas de hipertensión a gran escala con buenos resultados en diferentes entornos comparten muchos de estos elementos clave y sirven como ejemplos para mejorar la atención de la hipertensión en todo el mundo.
A hipertensão continua sendo a principal causa de doenças cardiovasculares no mundo, apesar da disponibilidade de tratamentos seguros e eficazes. Infelizmente, existem muitas barreiras para o controle da hipertensão, incluindo a falta de rastreamento e a conscientização eficazes, a incapacidade de acesso ao tratamento e desafios de conduta clínica quando ela é tratada. A abordagem dessas barreiras é complexa e requer um enfoque sistemático e sustentado em diferentes comunidades ao longo do tempo. Esta análise tem como objetivo descrever os elementos-chave necessários para criar um sistema eficaz de prestação de intervenções para o controle da hipertensão. Um sistema de sucesso requer vontade política e liderança que o apoie em todos os níveis de uma organização, inclusive no ponto da prestação de cuidados (consultório ou clínica), no sistema de saúde e nos níveis regional, estadual e nacional. Sistemas eficazes de triagem e acolhida são necessários para identificar indivíduos com hipertensão não diagnosticada, e um sistema de acompanhamento e rastreamento após o diagnóstico se faz igualmente necessário. A implementação de protocolos simples para o tratamento da hipertensão pode reduzir a confusão entre os profissionais de saúde e aumentar a eficiência do tratamento. Garantir o fácil acesso a medicamentos seguros, eficazes e acessíveis pode aumentar o controle da pressão arterial e potencialmente diminuir os custos do sistema de saúde. A divisão de tarefas entre os integrantes da equipe de saúde pode expandir os serviços prestados. Finalmente, é necessário monitorar e informar acerca do desempenho da equipe de saúde para aprender com aqueles que estão indo bem, disseminar ideias para aqueles que precisam melhorar e identificar pacientes individuais que precisam de ajuda ou cuidados adicionais. Programas bem-sucedidos de controle da hipertensão em larga escala em diferentes ambientes compartilham muitos desses elementos-chave e servem como exemplos para melhorar os sistemas de atenção à hipertensão em todo o mundo.
ABSTRACT
Hypertension and diabetes are modifiable cardiovascular disease (CVD) risk factors that contribute to nearly one-third of all deaths in the Americas Region each year (2.3 million deaths). Despite advances in the detection and clinical management of hypertension and diabetes, there are substantial gaps in their implementation globally and in the Region. The considerable overlap in risk factors, prognosis, and treatment of hypertension and diabetes creates a unique opportunity for a unified implementation model for management at the population level. This report highlights one such high-profile effort, the Pan American Health Organization's "HEARTS in the Americas" program, based on the World Health Organization's HEARTS Technical Package for Cardiovascular Disease Management in Primary Health Care. The HEARTS program aims to improve the implementation of preventive CVD care in primary health systems using six evidence-based, pragmatic components: Healthy-lifestyle counseling, Evidence-based protocols, Access to essential medicines and technology, Risk-based CVD management, Team-based care, and Systems for monitoring. To date, HEARTS implementation projects have focused primarily on hypertension given that it is the leading modifiable CVD risk factor and can be treated cost-effectively. The objective of this report is to describe opportunities for integration of diabetes clinical care and policy within the HEARTS hypertension framework. A substantial global burden of disease could be averted with integrated primary care management of these conditions. Thus, there is an urgency in applying lessons from HEARTS to close these implementation gaps and improve the integrated detection, treatment, and control of diabetes and hypertension.
Hipertensão e diabetes são fatores de risco modificáveis para doenças cardiovasculares (DCV) que contribuem para quase um terço de todas as mortes na Região das Américas a cada ano (2,3 milhões de mortes). Apesar dos avanços na detecção e no manejo clínico da hipertensão e do diabetes, existem lacunas importantes em sua implementação mundialmente e na região. A sobreposição considerável de fatores de risco, prognóstico e tratamento da hipertensão e do diabetes cria uma oportunidade única para um modelo de implementação unificado para o manejo dessas doenças em nível populacional. Este relatório destaca um desses esforços de alto nível, o programa "HEARTS nas Américas" da Organização Pan-Americana da Saúde, baseado no Pacote Técnico HEARTS da Organização Mundial da Saúde para o manejo de DCV na atenção primária à saúde. O programa HEARTS visa melhorar a implementação de cuidados preventivos de DCV nos sistemas de atenção primária utilizando seis componentes pragmáticos e baseados em evidências: Hábitos saudáveis (aconselhamento a pacientes), protocolos baseados em Evidências, Acesso a medicamentos e tecnologias essenciais, manejo das DCV baseado em Risco, Trabalho de equipe como base para a atenção e Sistemas de monitoramento. Até hoje, os projetos de implementação do HEARTS têm se concentrado principalmente na hipertensão, considerando que é o principal fator de risco modificável de DCV e pode ser tratada de forma custo-efetiva. O objetivo deste relatório é descrever as oportunidades de integração do manejo clínico e de políticas para o diabetes dentro da estrutura HEARTS de manejo da hipertensão. Uma importante carga global de doença poderia ser evitada com o manejo integrado dessas duas afecções na atenção primária. Assim, há uma urgência na aplicação das lições de HEARTS para fechar estas lacunas de implementação e melhorar a detecção, o tratamento e o controle integrados do diabetes e da hipertensão.
ABSTRACT
Hypertension and diabetes are modifiable cardiovascular disease (CVD) risk factors that contribute to nearly one-third of all deaths in the Americas Region each year (2.3 million deaths). Despite advances in the detection and clinical management of hypertension and diabetes, there are substantial gaps in their implementation globally and in the Region. The considerable overlap in risk factors, prognosis, and treatment of hypertension and diabetes creates a unique opportunity for a unified implementation model for management at the population level. This report highlights one such high-profile effort, the Pan American Health Organization's "HEARTS in the Americas" program, based on the World Health Organization's HEARTS Technical Package for Cardiovascular Disease Management in Primary Health Care. The HEARTS program aims to improve the implementation of preventive CVD care in primary health systems using six evidence-based, pragmatic components: Healthy-lifestyle counseling, Evidence-based protocols, Access to essential medicines and technology, Risk-based CVD management, Team-based care, and Systems for monitoring. To date, HEARTS implementation projects have focused primarily on hypertension given that it is the leading modifiable CVD risk factor and can be treated cost-effectively. The objective of this report is to describe opportunities for integration of diabetes clinical care and policy within the HEARTS hypertension framework. A substantial global burden of disease could be averted with integrated primary care management of these conditions. Thus, there is an urgency in applying lessons from HEARTS to close these implementation gaps and improve the integrated detection, treatment, and control of diabetes and hypertension.
La hipertensión y la diabetes son los factores de riesgo modificables de las enfermedades cardiovasculares asociados a casi un tercio de todas las muertes en la Región de las Américas cada año (2,3 millones). A pesar de los avances en la detección y el manejo clínico de la hipertensión y la diabetes, existen brechas sustanciales en la implementación a nivel regional y mundial. El considerable solapamiento en los factores de riesgo, el pronóstico y el tratamiento de la hipertensión y la diabetes crea una oportunidad única para un modelo unificado de implementación para el manejo a nivel poblacional. En este informe se pone de relieve una iniciativa importante de este tipo, el programa HEARTS en las Américas de la Organización Panamericana de la Salud, basado en el paquete técnico HEARTS para el manejo de las enfermedades cardiovasculares en la atención primaria de salud. El programa HEARTS tiene como objetivo mejorar la implementación de la atención preventiva de las enfermedades cardiovasculares en los sistemas de atención primaria de salud mediante seis componentes pragmáticos basados en la evidencia: Hábitos y estilos de vida saludables: asesoramiento para los pacientes; Evidencia: protocolos basados en la evidencia; Acceso a medicamentos y tecnologías esenciales; Riesgo cardiovascular: manejo de las enfermedades cardiovasculares basado en el riesgo; Trabajo en equipos; y Sistemas de monitoreo. Hasta la fecha, los proyectos de implementación de HEARTS se han centrado principalmente en la hipertensión, dado que es el principal factor de riesgo modificable de las enfermedades cardiovasculares y puede tratarse de una manera costo-eficaz. El objetivo de este informe es describir las oportunidades para la integración de la política y la atención clínica en el marco HEARTS para la hipertensión. Se podría evitar una significativa carga mundial de enfermedad con un manejo integrado de la atención primaria de estos problemas de salud. Por lo tanto, existe una urgencia en la aplicación de las enseñanzas de HEARTS para salvar estas brechas en la implementación y mejorar la detección, el tratamiento y el control integrados de la diabetes y la hipertensión.
Hipertensão e diabetes são fatores de risco modificáveis para doenças cardiovasculares (DCV) que contribuem para quase um terço de todas as mortes na Região das Américas a cada ano (2,3 milhões de mortes). Apesar dos avanços na detecção e no manejo clínico da hipertensão e do diabetes, existem lacunas importantes em sua implementação mundialmente e na região. A sobreposição considerável de fatores de risco, prognóstico e tratamento da hipertensão e do diabetes cria uma oportunidade única para um modelo de implementação unificado para o manejo dessas doenças em nível populacional. Este relatório destaca um desses esforços de alto nível, o programa "HEARTS nas Américas" da Organização Pan-Americana da Saúde, baseado no Pacote Técnico HEARTS da Organização Mundial da Saúde para o manejo de DCV na atenção primária à saúde. O programa HEARTS visa melhorar a implementação de cuidados preventivos de DCV nos sistemas de atenção primária utilizando seis componentes pragmáticos e baseados em evidências: Hábitos saudáveis (aconselhamento a pacientes), protocolos baseados em Evidências, Acesso a medicamentos e tecnologias essenciais, manejo das DCV baseado em Risco, Trabalho de equipe como base para a atenção e Sistemas de monitoramento. Até hoje, os projetos de implementação do HEARTS têm se concentrado principalmente na hipertensão, considerando que é o principal fator de risco modificável de DCV e pode ser tratada de forma custo-efetiva. O objetivo deste relatório é descrever as oportunidades de integração do manejo clínico e de políticas para o diabetes dentro da estrutura HEARTS de manejo da hipertensão. Uma importante carga global de doença poderia ser evitada com o manejo integrado dessas duas afecções na atenção primária. Assim, há uma urgência na aplicação das lições de HEARTS para fechar estas lacunas de implementação e melhorar a detecção, o tratamento e o controle integrados do diabetes e da hipertensão.
ABSTRACT
Global Hearts is the flagship initiative of the World Health Organization to reduce the burden of cardiovascular diseases, the leading cause of death and disability worldwide. HEARTS in the Americas Initiative is the regional adaptation that envisions HEARTS as the model for cardiovascular disease risk management, including hypertension and diabetes, in primary health care in the Americas by 2025. This initiative is entering its sixth year of implementation and now includes 22 countries and 1 380 primary health care centers. The objectives of this report are three-fold. First, it describes the emergence and the main elements of HEARTS in the Americas. Secondly, it summarizes the main innovations developed to catalyze and sustain implementation of the initiative. These innovations include: a) introduction of hypertension control drivers; b) development of a comprehensive and practical clinical pathway; c) development of a strategy to improve the accuracy of blood pressure measurement; d) creation of a monitoring and evaluation platform; and e) development of a standardized set of training and education resources. Thirdly, this report discusses future priorities of the initiative. The goal of implementing these innovative and pragmatic solutions is to create a more effective health system and shift the focus of cardiovascular and hypertension programs from the highly specialized care level to primary health care. In addition, HEARTS in the Americas can serve as a model for more comprehensive, effective, and sustainable noncommunicable disease prevention and treatment practices.
Global Hearts é a iniciativa mais importante da Organização Mundial da Saúde para reduzir a carga de doenças cardiovasculares, que são a principal causa de morte e incapacidade em todo o mundo. A Iniciativa HEARTS nas Américas é a adaptação regional que pressupõe a HEARTS como o modelo para a gestão do risco de doenças cardiovasculares, incluindo hipertensão e diabetes, na atenção primária à saúde nas Américas até 2025. Essa iniciativa está entrando em seu sexto ano de implementação e agora inclui 22 países e 1 380 centros de atenção primária à saúde. Os objetivos deste relatório são três. Primeiramente, ele descreve o surgimento e os principais elementos da Iniciativa HEARTS nas Américas. Em segundo lugar, resume as principais inovações desenvolvidas para catalisar e sustentar a implementação da iniciativa. Essas inovações incluem: a) introdução de fatores impulsionadores de controle da hipertensão; b) desenvolvimento de um caminho clínico abrangente e prático; c) desenvolvimento de uma estratégia para melhorar a exatidão da aferição da pressão arterial; d) criação de uma plataforma de monitoramento e avaliação; e e) desenvolvimento de um conjunto padronizado de recursos para treinamento e educação. Em terceiro lugar, este relatório discute as futuras prioridades da iniciativa. O objetivo de implementar essas soluções inovadoras e pragmáticas é criar um sistema de saúde mais eficaz e mudar o foco dos programas cardiovasculares e de hipertensão do nível de atendimento altamente especializado para a atenção primária à saúde. Além disso, a Iniciativa HEARTS nas Américas pode servir de modelo para práticas mais abrangentes, efetivas e susten- táveis de prevenção e tratamento de doenças não transmissíveis.
ABSTRACT
Global Hearts is the flagship initiative of the World Health Organization to reduce the burden of cardiovascular diseases, the leading cause of death and disability worldwide. HEARTS in the Americas Initiative is the regional adaptation that envisions HEARTS as the model for cardiovascular disease risk management, including hypertension and diabetes, in primary health care in the Americas by 2025. This initiative is entering its sixth year of implementation and now includes 22 countries and 1 380 primary health care centers. The objectives of this report are three-fold. First, it describes the emergence and the main elements of HEARTS in the Americas. Secondly, it summarizes the main innovations developed to catalyze and sustain implementation of the initiative. These innovations include: a) introduction of hypertension control drivers; b) development of a comprehensive and practical clinical pathway; c) development of a strategy to improve the accuracy of blood pressure measurement; d) creation of a monitoring and evaluation platform; and e) development of a standardized set of training and education resources. Thirdly, this report discusses future priorities of the initiative. The goal of implementing these innovative and pragmatic solutions is to create a more effective health system and shift the focus of cardiovascular and hypertension programs from the highly specialized care level to primary health care. In addition, HEARTS in the Americas can serve as a model for more comprehensive, effective, and sustainable noncommunicable disease prevention and treatment practices.
Global Hearts es la iniciativa emblemática de la Organización Mundial de la Salud para reducir la carga de las enfermedades cardiovasculares, la principal causa de muerte y discapacidad en todo el mundo. La iniciativa HEARTS en las Américas es la adaptación regional que propone HEARTS como modelo para el manejo del riesgo de enfermedades cardiovasculares, incluida la hipertensión, y la diabetes en la atención primaria de salud en la Región de las Américas para el año 2025. Esta iniciativa está iniciando su sexto año de aplicación y ya incluye a 22 países y 1 380 centros de atención primaria de salud. Son tres los objetivos de este informe. En primer lugar, describir cómo surgió la iniciativa HEARTS en las Américas y cuáles son sus principales elementos. En segundo lugar, resumir las principales innovaciones logradas para catalizar la iniciativa y mantener su aplicación. Entre estas innovaciones se encuentran: a) la introducción de factores impulsores del control de la hipertensión; b) el desarrollo de una vía clínica integral y práctica; c) la elaboración de una estrategia para mejorar la precisión de la medición de la presión arterial; d) la creación de un marco de seguimiento y evaluación; y e) la elaboración de un conjunto estandarizado de recursos de capacitación y formación. En tercer lugar, en este informe se examinan las futuras prioridades de la iniciativa. El objetivo de poner en marcha estas soluciones innovadoras y pragmáticas es crear un sistema de salud más efectivo y trasladar el enfoque de los programas cardiovasculares y de hipertensión del nivel de atención altamente especializada a la atención primaria de salud. Además, HEARTS en las Américas puede servir como modelo para unas prácticas más integrales, efectivas y sostenibles en la prevención y el tratamiento de las enfermedades no transmisibles.
Global Hearts é a iniciativa mais importante da Organização Mundial da Saúde para reduzir a carga de doenças cardiovasculares, que são a principal causa de morte e incapacidade em todo o mundo. A iniciativa HEARTS nas Américas é a adaptação regional que pressupõe a HEARTS como o modelo para a gestão do risco de doenças cardiovasculares, incluindo hipertensão e diabetes, na atenção primária à saúde nas Américas até 2025. Essa iniciativa está entrando em seu sexto ano de implementação e agora inclui 22 países e 1 380 centros de atenção primária à saúde. Os objetivos deste relatório são três. Primeiramente, ele descreve o surgimento e os principais elementos da iniciativa HEARTS nas Américas. Em segundo lugar, resume as principais inovações desenvolvidas para catalisar e sustentar a implementação da iniciativa. Essas inovações incluem: a) introdução de fatores impulsionadores de controle da hipertensão; b) desenvolvimento de um caminho clínico abrangente e prático; c) desenvolvimento de uma estratégia para melhorar a exatidão da aferição da pressão arterial; d) criação de uma plataforma de monitoramento e avaliação; e e) desenvolvimento de um conjunto padronizado de recursos para treinamento e educação. Em terceiro lugar, este relatório discute as futuras prioridades da iniciativa. O objetivo de implementar essas soluções inovadoras e pragmáticas é criar um sistema de saúde mais eficaz e mudar o foco dos programas cardiovasculares e de hipertensão do nível de atendimento altamente especializado para a atenção primária à saúde. Além disso, a iniciativa HEARTS nas Américas pode servir de modelo para práticas mais abrangentes, efetivas e sustentáveis de prevenção e tratamento de doenças não transmissíveis.
ABSTRACT
Mentorship is vital in the effective progression of a physician's educational training. This journey often begins during a physician's undergraduate career prior to advancing on to medical school, residency, and fellowship training. These levels of training distinguish different tiers of mastery, and collaboration among these tiers is integral in order to facilitate a meaningful transition into an independent physician.
Subject(s)
Education, Medical/organization & administration , Education, Medical, Undergraduate/organization & administration , Humans , Internship and Residency/organization & administration , Mentors , Schools, Medical/organization & administration , South Carolina , Students, MedicalABSTRACT
Many hypertensive animal models have been developed and used to elucidate the pathophysiology of hypertension and to develop antihypertensive drugs. Among them, the spontaneous hypertensive rat (SHR), deoxycorticosterone acetate (DOCA)-treated and high salt intake rat (DOCA-salt), and high sodium-fed Dahl salt-sensitive rat (HS) models are commonly used. Multiple studies have been conducted, however, elevation in blood pressure in these models due to the reactivity of adrenergic vasoconstriction has not been well characterized in a centralized experiment. In this study, the pressor responses to periarterial nerve stimulation (PNS) or exogenous noradrenaline (NA) infusion were measured in the isolated mesenteric vascular bed with the intestinal tract to investigate the reactivity of mesenteric adrenergic vasoconstriction. The systemic arterial blood pressure of the hypertensive rat models was uniformly elevated compared with their respective controls. However, the changes in perfusion pressure in the mesenteric vascular bed in response to PNS and exogenous NA infusion were quite different depending on the model. The pressor responses to PNS in SHRs and Dahl S HS rats were significantly higher, and those in DOCA-salt rats were significantly lower than those in the controls. The pressor responses to exogenous NA infusion in SHRs were significantly higher, and those in Dahl S HS rats were significantly lower than those in their respective controls. No difference was observed in the pressor responses to the exogenous NA between the DOCA-salt and sham groups. These results demonstrate that the reactivity of adrenergic vasoconstriction is different for each type of experimental hypertensive model rat.
Subject(s)
Electric Stimulation Therapy , Hypertension/therapy , Intestines/blood supply , Mesentery/drug effects , Norepinephrine/pharmacology , Animals , Blood Pressure/drug effects , Disease Models, Animal , Hypertension/drug therapy , Hypertension/physiopathology , Male , Mesentery/physiopathology , Norepinephrine/administration & dosage , Norepinephrine/therapeutic use , RatsABSTRACT
Supplemental digital content is available in the text.
Subject(s)
Attitude of Health Personnel , Education, Medical, Graduate/methods , Internal Medicine/education , Physicians/psychology , Program Development , Students, Medical/psychology , Training Support/organization & administration , Humans , Young AdultABSTRACT
BACKGROUND: The formation of healthy heart valves throughout embryonic development is dependent on both genetic and epigenetic factors. Hemodynamic stimuli are important epigenetic regulators of valvulogenesis, but the resultant molecular pathways that control valve development are poorly understood. Here we describe how the heart and valves recover from the removal of a partial constriction (banding) of the OFT/ventricle junction (OVJ) that temporarily alters blood flow velocity through the embryonic chicken heart (HH stage 16/17). Recovery is described in terms of 24- and 48-hr gene expression, morphology, and OVJ hemodynamics. RESULTS: Collectively, these studies show that after 24 hr of recovery, important epithelial-mesenchymal transformation (EMT) genes TGFßRIII and Cadherin 11 (CDH11) transcript levels normalize return to control levels, in contrast to Periostin and TGFß,3 which remain altered. In addition, after 48 hr of recovery, TGFß3 and CDH11 transcript levels remain normalized, whereas TGFßRIII and Periostin are down-regulated. Analyses of OFT cushion volumes in the hearts show significant changes, as does the ratio of cushion to cell volume at 24 hr post band removal (PBR). Morphologically, the hearts show visible alteration following band removal when compared to their control age-matched counterparts. CONCLUSIONS: Although some aspects of the genetic/cellular profiles affected by altered hemodynamics seem to be reversed, not all gene expression and cardiac growth normalize following 48 hr of band removal. Developmental Dynamics 247:531-541, 2018. © 2017 Wiley Periodicals, Inc.
Subject(s)
Constriction , Heart Valves/embryology , Heart/embryology , Animals , Cadherins/genetics , Cadherins/metabolism , Cell Adhesion Molecules/metabolism , Chick Embryo , Gene Expression , Hemodynamics , Proteoglycans/genetics , Proteoglycans/metabolism , Receptors, Transforming Growth Factor beta/genetics , Receptors, Transforming Growth Factor beta/metabolismABSTRACT
BACKGROUND: Tissue-transglutaminase (TG2), a dual function G-protein, plays key roles in cell differentiation and migration. In our previous studies we reported the mechanism of TG2-induced cell differentiation. In present study, we explored the mechanism of how TG2 may be involved in cell migration. METHODS: To study the mechanism of TG2-mediated cell migration, we used neuroblastoma cells (SH-SY5Y) which do not express TG2, neuroblastoma cells expressing exogenous TG2 (SHYTG2), and pancreatic cancer cells which express high levels of endogenous TG2. Resveratrol, a natural compound previously shown to inhibit neuroblastoma and pancreatic cancer in the animal models, was utilized to investigate the role of TG2 in cancer cell migration. Immunofluorescence assays were employed to detect expression and intracellular localization of TG2, and calcium levels in the migrating cells. Native gel electrophoresis was performed to analyze resveratrol-induced cellular distribution and conformational states of TG2 in migrating cells. Data are presented as the mean and standard deviation of at least 3 independent experiments. Comparisons were made among groups using one-way ANOVA followed by Tukey-Kramer ad hoc test. RESULTS: TG2 containing cells (SHYTG2 and pancreatic cancer cells) exhibit increased cell migration and invasion in collagen-coated and matrigel-coated transwell plate assays, respectively. Resveratrol (1 µM-10 µM) prevented migration of TG2-expressing cells. During the course of migration, resveratrol increased the immunoreactivity of TG2 without affecting the total TG2 protein level in migrating cells. In these cells, resveratrol increased calcium levels, and depletion of intracellular calcium by a calcium chelator, BAPTA, attenuated resveratrol-enhanced TG2 immunoreactivity. In native-polyacrylamide gels, we detected an additional TG2 protein band with slower migration in total cell lysates of resveratrol treated cells. This TG2 form is non-phosphorylated, exclusively present in plasma membrane fractions and sensitive to intracellular Ca(2+) concentration suggesting a calcium requirement in TG2-regulated cell migration. CONCLUSIONS: Taken together, we conclude that resveratrol induces conformational changes in TG2, and that Ca(2+)-mediated TG2 association with the plasma membrane is responsible for the inhibitory effects of resveratrol on cell migration.
Subject(s)
Cell Membrane/genetics , Gene Expression Regulation, Neoplastic , Pancreatic Neoplasms/genetics , Transglutaminases/genetics , Calcium Signaling , Cell Line, Tumor , Cell Membrane/chemistry , Cell Movement/drug effects , GTP-Binding Proteins , Humans , Pancreatic Neoplasms/pathology , Protein Conformation , Protein Glutamine gamma Glutamyltransferase 2 , Protein Transport/genetics , Resveratrol , Stilbenes/administration & dosage , Transglutaminases/chemistry , Transglutaminases/metabolismABSTRACT
Deoxycorticosterone salt (DOC-salt) hypertension-induced renal damage is enhanced in α-calcitonin gene-related peptide (α-CGRP) knockout (KO) compared with wild-type (WT) mice. However, since the α-CGRP KO mice have a 15-20 mmHg higher baseline mean arterial pressure (MAP) than WT mice, they also have a higher MAP than WT mice throughout the course of DOC-salt hypertension. To determine the mechanism by which the absence of α-CGRP enhances hypertension-induced renal damage, DOC-salt hypertension was induced in telemetry probe implanted α-CGRP KO and WT mice. To equalize the blood pressure (BP) to that of DOC-salt WT mice, an additional group of DOC-salt α-CGRP KO mice was given 0.025% hydralazine to drink. The DOC-salt protocol increased the final MAP in α-CGRP KO mice to 155 ± 6 mmHg and in WT mice to 140 ± 5 mmHg. The MAP of the hydralazine-treated DOC-salt α-CGRP KO mice was 139 ± 6 mmHg. Urinary excretion of microalbumin and isoprostane, a marker for oxidative stress, was increased, and creatinine clearance was decreased in DOC-salt α-CGRP KO compared with DOC-salt WT mice. Equalization of the MAP in DOC-salt α-CGRP KO to that of DOC-salt WT mice did not significantly improve these parameters. Renal macrophage infiltration; desmin, a marker of podocyte damage; and the inflammatory cytokines TNF-α and IFN-γ and the chemokines monocyte chemoattractant protein-1 (MCP-1) and macrophage inflammatory protein-1α (MIP-1α) were increased in DOC-salt α-CGRP KO mice and were not reduced by hydralazine treatment. However, BP equalization did improve the renal histopathological damage, as determined by light microscopy. Therefore, in DOC-salt hypertension in mice, the mechanism(s) of the renal protective effects of α-CGRP are both BP independent and BP dependent.
Subject(s)
Calcitonin Gene-Related Peptide/physiology , Hypertension/physiopathology , Kidney/physiology , Animals , Arterial Pressure/drug effects , Calcitonin Gene-Related Peptide/genetics , Chemokines/metabolism , Cytokines/metabolism , Desmin/biosynthesis , Desoxycorticosterone , Hydralazine/pharmacology , Hypertension/chemically induced , Kidney/pathology , Macrophages/immunology , Mice , Mice, KnockoutABSTRACT
Background: HEARTS in the Americas is the regional adaptation of the WHO Global HEARTS Initiative. It is implemented in 24 countries and over 2,000 primary healthcare facilities. This paper describes the results of a multicomponent, stepwise, quality improvement intervention designed by the HEARTS in the Americas to support advances in hypertension treatment protocols and evolution towards the Clinical Pathway. Methods: The quality improvement intervention comprised: 1) the use of the appraisal checklist to evaluate the current hypertension treatment protocols, 2) a peer-to-peer review and consensus process to resolve discrepancies, 3) a proposal of a clinical pathway to be considered by the countries, and 4) a process of review, adopt/adapt, consensus and approval of the clinical pathway by the national HEARTS protocol committee. A year later, 16 participants countries (10 and 6 from each cohort, respectively) were included in a second evaluation using the HEARTS appraisal checklist. We used the median and interquartile scores range and the percentages of the maximum possible total score for each domain as a performance measure to compare the results pre and post-intervention. Results: Among the eleven protocols from the ten countries in the first cohort, the baseline assessment achieved a median overall score of 22 points (ICR 18 -23.5; 65% yield). After the intervention, the overall score reached a median of 31.5 (ICR 28.5 -31.5; 93% yield). The second cohort of countries developed seven new clinical pathways with a median score of 31.5 (ICR 31.5 -32.5; 93% yield). The intervention was effective in three domains: 1. implementation (clinical follow-up intervals, frequency of drug refills, routine repeat blood pressure measurement when the first reading is off-target, and a straightforward course of action). 2. treatment (grouping all medications in a single daily intake and using a combination of two antihypertensive medications for all patients in the first treatment step upon the initial diagnosis of hypertension) and 3. management of cardiovascular risk (lower BP thresholds and targets based on CVD risk level, and the use of aspirin and statins in high-risk patients). Conclusion: This study confirms that this intervention was feasible, acceptable, and instrumental in achieving progress in all countries and all three domains of improvement: implementation, blood pressure treatment, and cardiovascular risk management. It also highlights the challenges that prevent a more rapid expansion of HEARTS in the Americas and confirms that the main barriers are in the organization of health services: drug titration by non-physician health workers, the lack of long-acting antihypertensive medications, lack of availability of fixed-doses combination in a single pill and cannot use high-intensity statins in patients with established cardiovascular diseases. Adopting and implementing the HEARTS Clinical Pathway can improve the efficiency and effectiveness of hypertension and cardiovascular disease risk management programs.
ABSTRACT
Alpha-calcitonin gene-related peptide (α-CGRP) is a vasodilator neuropeptide of the calcitonin gene family. Pharmacological and gene knock-out studies have established a significant role of α-CGRP in normal and pathophysiological states, particularly in cardiovascular disease and migraines. α-CGRP knock-out mice with transverse aortic constriction (TAC)-induced pressure-overload heart failure have higher mortality rates and exhibit higher levels of cardiac fibrosis, inflammation, oxidative stress, and cell death compared to the wild-type TAC-mice. However, administration of α-CGRP, either in its native- or modified-form, improves cardiac function at the pathophysiological level, and significantly protects the heart from the adverse effects of heart failure and hypertension. Similar cardioprotective effects of the peptide were demonstrated in pressure-overload heart failure mice when α-CGRP was delivered using an alginate microcapsules-based drug delivery system. In contrast to cardiovascular disease, an elevated level of α-CGRP causes migraine-related headaches, thus the use of α-CGRP antagonists that block the interaction of the peptide to its receptor are beneficial in reducing chronic and episodic migraine headaches. Currently, several α-CGRP antagonists are being used as migraine treatments or in clinical trials for migraine pain management. Overall, agonists and antagonists of α-CGRP are clinically relevant to treat and prevent cardiovascular disease and migraine pain, respectively. This review focuses on the pharmacological and therapeutic significance of α-CGRP-agonists and -antagonists in various diseases, particularly in cardiac diseases and migraine pain.
ABSTRACT
In humans, ethanol exposure during pregnancy produces a wide range of abnormalities in infants collectively known as fetal alcohol spectrum disorders (FASD). Neuronal malformations in FASD manifest as postnatal behavioral and functional disturbances. The cerebellum is particularly sensitive to ethanol during development. In a rodent model of FASD, high doses of ethanol (blood ethanol concentration 80 mM) induces neuronal cell death in the cerebellum. However, information on potential agent(s) that may protect the cerebellum against the toxic effects of ethanol is lacking. Growing evidence suggests that a polyphenolic compound, resveratrol, has antioxidant and neuroprotective properties. Here we studied whether resveratrol (3,5,4'-trihydroxy-trans-stilbene), a phytoalexin found in red grapes and blueberries, protects the cerebellar granule neurons against ethanol-induced cell death. In the present study, we showed that administration of resveratrol (100 mg/kg) to postnatal day 7 rat pups prevents ethanol-induced apoptosis by scavenging reactive oxygen species in the external granule layer of the cerebellum and increases the survival of cerebellar granule cells. It restores ethanol-induced changes in the level of transcription factor nuclear factor-erythroid derived 2-like 2 (nfe2l2, also known as Nrf2) in the nucleus. This in turn retains the expression and activity of its downstream gene targets such as NADPH quinine oxidoreductase 1 and superoxide dismutase in cerebellum of ethanol-exposed pups. These studies indicate that resveratrol exhibits neuroprotective effects in cerebellum by acting at redox regulating proteins in a rodent model of FASD.
Subject(s)
Cerebellum/drug effects , Disease Models, Animal , Ethanol/toxicity , Fetal Alcohol Spectrum Disorders/metabolism , NF-E2-Related Factor 2/metabolism , Stilbenes/pharmacology , Animals , Apoptosis/drug effects , Cells, Cultured , Cerebellum/metabolism , Cerebellum/pathology , Dose-Response Relationship, Drug , Female , Fetal Alcohol Spectrum Disorders/etiology , Fetal Alcohol Spectrum Disorders/pathology , In Situ Nick-End Labeling , Pregnancy , Rats , Rats, Long-Evans , Reactive Oxygen Species/metabolism , ResveratrolABSTRACT
In bile duct-ligated (BDL) rats, cholangiocyte proliferation is regulated by neuroendocrine factors such as α-calcitonin gene-related peptide (α-CGRP). There is no evidence that the sensory neuropeptide substance P (SP) regulates cholangiocyte hyperplasia. Wild-type (WT, (+/+)) and NK-1 receptor (NK-1R) knockout (NK-1R(-/-)) mice underwent sham or BDL for 1 wk. Then we evaluated 1) NK-1R expression, transaminases, and bilirubin serum levels; 2) necrosis, hepatocyte apoptosis and steatosis, and the number of cholangiocytes positive by CK-19 and terminal deoxynucleotidyl transferase biotin-dUTP nick-end labeling in liver sections; 3) mRNA expression for collagen 1α and α-smooth muscle (α-SMA) actin in total liver samples; and 4) PCNA expression and PKA phosphorylation in cholangiocytes. In cholangiocyte lines, we determined the effects of SP on cAMP and D-myo-inositol 1,4,5-trisphosphate levels, proliferation, and PKA phosphorylation. Cholangiocytes express NK-1R with expression being upregulated following BDL. In normal NK-1R(-/-) mice, there was higher hepatocyte apoptosis and scattered hepatocyte steatosis compared with controls. In NK-1R (-)/(-) BDL mice, there was a decrease in serum transaminases and bilirubin levels and the number of CK-19-positive cholangiocytes and enhanced biliary apoptosis compared with controls. In total liver samples, the expression of collagen 1α and α-SMA increased in BDL compared with normal mice and decreased in BDL NK-1R(-/-) compared with BDL mice. In cholangiocytes from BDL NK-1R (-)/(-) mice there was decreased PCNA expression and PKA phosphorylation. In vitro, SP increased cAMP levels, proliferation, and PKA phosphorylation of cholangiocytes. Targeting of NK-1R may be important in the inhibition of biliary hyperplasia in cholangiopathies.
Subject(s)
Bile Ducts/metabolism , Cyclic AMP-Dependent Protein Kinases/chemistry , Epithelial Cells/metabolism , Liver/pathology , RNA, Messenger/metabolism , Receptors, Neurokinin-1/metabolism , Receptors, Neurokinin-1/physiology , Substance P/physiology , Actins/metabolism , Alanine Transaminase/blood , Animals , Apoptosis , Aspartate Aminotransferases/blood , Bile Ducts/physiology , Bile Ducts/surgery , Bilirubin/blood , Cell Count , Cell Line , Cell Proliferation , Cholestasis/physiopathology , Collagen Type I/metabolism , Cyclic AMP/metabolism , Epithelial Cells/cytology , Epithelial Cells/physiology , Hepatocytes/cytology , Inositol 1,4,5-Trisphosphate/metabolism , Ligation , Liver/metabolism , Mice , Models, Animal , Necrosis , Phosphorylation , Proliferating Cell Nuclear Antigen/metabolism , Signal Transduction/physiologyABSTRACT
In subtotal nephrectomy (SN)- and salt-induced hypertension, calcitonin gene-related peptide (CGRP) plays a compensatory role to attenuate the blood pressure increase in the absence of an increase in the neuronal synthesis and release of this peptide. Therefore, the purpose of this study was to determine whether the mechanism of this antihypertensive activity is through enhanced sensitivity of the vasculature to the dilator actions of this neuropeptide. Hypertension was induced in Sprague-Dawley rats by SN and 1% saline drinking water. Control rats were sham-operated and given tap water to drink. After 11 days, rats had intravenous (drug administration) and arterial (continuous mean arterial pressure recording) catheters surgically placed and were studied in a conscious unrestrained state. Baseline mean arterial pressure was higher in the SN-salt rats (157 ± 5 mmHg) compared with controls (128 ± 3 mmHg). Administration of CGRP (and adrenomedullin) produced a significantly greater dose-dependent decrease in mean arterial pressure in SN-salt rats compared with controls (â¼2.0-fold for both the low and high doses). Interestingly, isolated superior mesenteric arterioles from SN-salt rats were significantly more responsive to the dilator effects of CGRP (but not adenomedullin) than the controls (pEC(50), SN-salt, 14.0 ± 0.1 vs. control, 12.0 ± 0.1). Analysis of the CGRP receptor proteins showed that only the receptor component protein was increased significantly in arterioles from SN-salt rats. These data indicate that the compensatory antihypertensive effects of CGRP result from an increased sensitivity of the vasculature to dilator activity of this peptide. The mechanism may be via the upregulation of receptor component protein, thereby providing a more efficient coupling of the receptor to the signal transduction pathways.
Subject(s)
Antihypertensive Agents/administration & dosage , Calcitonin Gene-Related Peptide/administration & dosage , Hypertension/drug therapy , Mesentery/blood supply , Nephrectomy , Sodium Chloride, Dietary , Vasodilation/drug effects , Vasodilator Agents/administration & dosage , Adrenomedullin/administration & dosage , Analysis of Variance , Animals , Arterioles/drug effects , Arterioles/metabolism , Arterioles/physiopathology , Blood Pressure/drug effects , Blotting, Western , Disease Models, Animal , Dose-Response Relationship, Drug , Hypertension/etiology , Hypertension/metabolism , Hypertension/physiopathology , Infusions, Intravenous , Male , Rats , Rats, Sprague-Dawley , Receptors, Calcitonin Gene-Related Peptide/agonists , Receptors, Calcitonin Gene-Related Peptide/metabolism , Time FactorsABSTRACT
The World Health Organization (WHO) Global Hearts Initiative offers technical packages to reduce the burden of cardiovascular diseases through population-wide and targeted health services interventions. The Pan American Health Organization (PAHO) has led implementation of the HEARTS in the Americas Initiative since 2016. The authors mapped the developmental stages, barriers, and facilitators to implementation among the 371 primary health care centers in the participating 12 countries. The authors used the qualitative method of document review to examine cumulative country reports, technical meeting notes, and reports to regional stakeholders. Common implementation barriers include segmentation of health systems, overcoming health care professionals' scope of practice legal restrictions, and lack of health information systems limiting operational evaluation and quality improvement mechanisms. Main implementation facilitators include political support from ministries of health and leading scientific societies, PAHO's role as a regional catalyst to implementation, stakeholder endorsement demonstrated by incorporating HEARTS into official documents, and having a health system oriented to primary health care. Key lessons include the need for political commitment and cultivating on-the-ground leadership to initiate a shift in hypertension care delivery, accompanied by specific progress in the development of standardized treatment protocols and a set of high-quality medicines. By systematizing an implementation strategy to ease integration of interventions into delivery processes, the program strengthened technical leadership and ensured sustainability. These study findings will aid the regional approach by providing a staged planning model that incorporates lessons learned. A systematic approach to implementation will enhance equity, efficiency, scale-up, and sustainability, and ultimately improve population hypertension control.