Página 1 dos resultados de 29496 itens digitais encontrados em 0.030 segundos

Clinical and haemodynamic evaluation of chronic thromboembolic pulmonary hypertension patients scheduled for pulmonary thromboendarterectomy: Is schistosomiasis hypertension an important confounding factor?

TERRA-FILHO, Mario; MELLO, Marcos Figueiredo; LAPA, Mônica Silveira; TEIXEIRA, Ricardo Henrique Oliveira Braga; JATENE, Fábio Biscegli
Fonte: Faculdade de Medicina / USP Publicador: Faculdade de Medicina / USP
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
35.79%
INTRODUCTION: Chronic thromboembolic pulmonary hypertension is a disease affecting approximately 4,000 people per year in the United States. The incidence rate in Brazil, however, is unknown. The estimated survival for patients with chronic thromboembolic pulmonary hypertension without treatment is approximately three years. Pulmonary thromboendarterectomy for select patients is a potentially curative procedure when correctly applied. In Brazil, the clinical and hemodynamic profiles of chronic thromboembolic pulmonary hypertension patients have yet to be described. OBJECTIVES: To evaluate the clinical and hemodynamic characteristics of chronic thromboembolic pulmonary hypertension patients scheduled for pulmonary thromboendarterectomy in a referral center for chronic thromboembolic pulmonary hypertension treatment in Brazil. METHODS: From December 2006 to November 2009, patients were evaluated and scheduled for pulmonary thromboendarterectomy. The subjects were classified according to gender, age and functional class and were tested for thrombofilia and brain natriuretic peptide levels. RESULTS: Thirty-five consecutive chronic thromboembolic pulmonary hypertension patients were evaluated. Two patients tested positive for schistosomiasis...

The Effects of Continuous Positive Airway Pressure on Prehypertension and Masked Hypertension in Men With Severe Obstructive Sleep Apnea

DRAGER, Luciano F.; PEDROSA, Rodrigo P.; DINIZ, Patricia M.; DIEGUES-SILVA, Luzia; MARCONDES, Bianca; COUTO, Roberta B.; GIORGI, Dante M. A.; KRIEGER, Eduardo M.; LORENZI-FILHO, Geraldo
Fonte: LIPPINCOTT WILLIAMS & WILKINS Publicador: LIPPINCOTT WILLIAMS & WILKINS
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
35.79%
Obstructive sleep apnea and hypertension are common conditions that frequently coexist. Continuous positive airway pressure (CPAP) reduces blood pressure in patients with obstructive sleep apnea and sustained hypertension. However, the impact of CPAP on patients with obstructive sleep apnea and prehypertension and masked hypertension, conditions associated with increased cardiovascular risk, is unknown. Thirty-six male patients (age, 43 +/- 7 years; body mass index, 28.8 +/- 3.0 kg/m(2)) with untreated severe obstructive sleep apnea (apnea-hypopnea index, 56 +/- 22 events/hr on polysomnography) with diagnostic criteria for prehypertension and/or masked hypertension, based on office and 24-hour ambulatory blood pressure monitoring, respectively, were studied. The patients randomized to no treatment (control; n=18) or CPAP (n=18) for 3 months had similar frequency of prehypertension and masked hypertension at study entry. There were no significant changes in blood pressure in patients randomized to the control group. In contrast, patients randomized to CPAP presented significant reduction in office systolic (from 126 +/- 5 to 121 +/- 7 mm Hg; P=0.001) and a trend for diastolic blood pressure (from 75 +/- 7 to 73 +/- 8 mm Hg; P=0.08) as well as a significant decrease in daytime and nighttime systolic and diastolic blood pressure (P < 0.05 for each comparison). There was a significant reduction in the frequency of prehypertension (from 94% to 55%; P=0.02) and masked hypertension (from 39% to 5%; P=0.04) only in the CPAP group. In conclusion...

Efeitos da lercanidipina sobre alterações cardiovasculares presentes em modelos de Hipertensão Arterial e Diabetes Mellitus em ratos; Effects of lercanidipine on the cardiovascular alterations in animal models of arterial hypertension and diabetes mellitus in mice

Martinez, Márcio Luís Lombardi
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 05/08/2008 PT
Relevância na Pesquisa
35.79%
Hipertensão e Diabetes são dois dos principais fatores de risco para o desenvolvimento de aterosclerose e doença da artéria coronária. Tais enfermidades aumentam o risco cardiovascular a índices muito elevados, e são acompanhadas por uma alteração fisiopatológica comum, que é o remodelamento vascular acelerado, caracterizado pelo desarranjo na regulação da atividade das metaloproteinases (MMPs) associado ao aumento do "stress" oxidativo. Um dos modelos mais semelhantes ao quadro de hipertensão renovascular em humanos é o modelo de hipertensão renovascular unilateral (2R-1C), que é produzido pelo clampeamento de uma das artérias renais, e manutenção do rim contra lateral intacto. Por outro lado, a Aloxana tem sido extensivamente utilizada como modelo de indução química dos tipos de diabetes não-insulino dependentes. Este remodelamento vascular acelerado presente na hipertensão bem como na diabetes está associado a ativação de um grupo de endopeptidases zinco-dependentes denominadas metaloproteinases, que têm sido implicadas no remodelamento vascular subjacente à aterosclerose. MMPs têm sido reconhecidas como um grupo de enzimas envolvidas na degradação de componentes da matriz extracelular em processo fisiológicos...

Padrões da dieta e hipertensão em adultos e idosos de São Paulo; Dietary patterns and hypertension among adults and elderly of São Paulo

Selem, Soraya Sant'Ana de Castro
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Dissertação de Mestrado Formato: application/pdf
Publicado em 03/05/2012 PT
Relevância na Pesquisa
35.79%
Introdução: A hipertensão, doença cardiovascular de alta prevalência, tem influência relevante na morbi-mortalidade da população, e a dieta é um de seus principais fatores de risco modificáveis. Objetivos: Verificar a validade da hipertensão auto-referida e a associação entre os padrões da dieta e a hipertensão auto-referida em residentes do município de São Paulo. Métodos: Foram utilizados dados do estudo transversal de base populacional ISA - Capital 2008, referentes à amostra probabilística de residentes do município de São Paulo com 20 anos ou mais, de ambos os sexos. A coleta de dados ocorreu em 2008 e 2010, por meio de duas visitas domiciliares e inquérito telefônico. Foram coletados dados socioeconômicos, antropométricos, de estilo de vida, inquérito alimentar, e a pressão arterial foi aferida. A validade da hipertensão auto-referida foi verificada pela sensibilidade, especificidade, valor preditivo positivo (VPP), valor preditivo negativo (VPN) e coeficiente kappa. Estimou-se o consumo alimentar por dois recordatórios de 24 horas, ajustando-se a variabilidade pelo Multiple Source Method. Os padrões da dieta foram obtidos pela análise fatorial por componentes principais. A regressão de Poisson foi utilizada para verificar as associações. Resultados: A sensibilidade da hipertensão auto-referida foi 71...

Tratamento crônico com nebivolol atenua o remodelamento vascular hipertrófico da hipertensão renovascular 2-rins, 1-clipe; Chronic treatment with nebivolol attenuates large arteries hypertrophy in renovascular hypertension 2-kidneys 1-clip.

Ceron, Carla Speroni
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 21/11/2012 PT
Relevância na Pesquisa
35.79%
A hipertensão arterial é uma condição clínica grave acompanhada por alterações estruturais do aparelho cardiovascular. Os antagonistas dos receptores 1-adrenérgicos são drogas usadas na terapêutica anti-hipertensiva. O nebivolol é um antagonista seletivo dos receptores 1 de terceira geração, que estimula a liberação endotelial de NO e diminui a ativação da -nicotinamida adenosina dinucleotído fosfato (NAD(P)H) oxidase. O metoprolol é um antagonista seletivo dos receptores 1de segunda geração, que não apresenta efeitos vasodilatadores. As metaloproteinases da matriz (MMPs), principalmente a MMP-2, são enzimas que participam ativamente do processo de remodelamento vascular. Elas passam de seu estado latente para seu estado ativo pela ação de proteases e espécies reativas de oxigênio (EROs). Como na hipertensão há aumento de EROs, de MMPs e remodelamento vascular, é possível que o nebivolol impeça o aumento dos níveis de MMPs vasculares e o remodelamento vascular hipertrófico associados à hipertensão, além do seu efeito de antagonismo do receptor 1. Primeiro, realizamos uma avaliação das alterações aórticas da hipertensão 2-rins,1-clipe (2R-1C), pois há poucas informações sobre essas alterações durante o desenvolvimento da hipertensão. Para isso...

Prevalência de hipertensão resistente em adultos não idosos : estudo prospectivo em contexto ambulatorial; Prevalence of resistant hypertension in non-elderly adults: prospective study in a clinical setting

Massierer, Daniela; Oliveira, Ana Claudia Tonelli de; Steinhorst, Ana Maria Pasquali; Gus, Miguel; Ascoli, Aline Maria; Gonçalves, Sandro Cadaval; Moreira, Leila Beltrami; Correa Junior, Vicente; Nunes, Gerson Luis da Silva; Fuchs, Sandra Cristina Pereir
Fonte: Universidade Federal do Rio Grande do Sul Publicador: Universidade Federal do Rio Grande do Sul
Tipo: Artigo de Revista Científica Formato: application/pdf
POR
Relevância na Pesquisa
35.8%
Fundamento: Em face do emprego de diferentes definições e critérios de amostragem, a real prevalência de hipertensão resistente em ambiente clínico é desconhecida. Objetivo: Investigar a prevalência de real hipertensão resistente em uma clínica de hipertensão arterial. Métodos: Hipertensão resistente verdadeira foi diagnosticada quando fenômeno do jaleco branco, insuficiente adesão ao tratamento e hipertensão secundária foram excluídos em pacientes com Pressão Arterial (PA) ≥ 140/90 mmHg em duas visitas consecutivas, usando três de fármacos anti-hipertensivos, incluindo um diurético. Resultados: No total, 606 pacientes, com 35 a 65 anos de idade, a maioria mulheres, com PA de 156,8 ± 23,8 mmHg por 91,9 ± 15,6 mmHg e IMC de 29,7 ± 5,9 Kg/m2 foram sequencialmente avaliados. Cento e seis pacientes em uso de três agentes anti-hipertensivos estavam com pressão arterial não controlada (17,5% da amostra total) na primeira visita. Oitenta e seis pacientes (81% dos pacientes com PA não controlada na primeira avaliação) retornaram para a avaliação de confirmação: 25 estavam com PA controlada; 21 tinham evidência de baixa adesão ao tratamento; 13 tinham fenômeno do jaleco branco; e 9 tinham hipertensão secundária...

Prevention of hypertension in patients with pre-hypertension: Protocol for the PREVER-prevention trial

Fuchs, Flávio D.; Fuchs, Sandra C.; Moreira, Leila B.; Gus, Miguel; Nóbrega, Antônio C.; Poli-de-Figueiredo, Carlos E.; Mion, Décio; Bortoloto, Luiz; Consolim-Colombo, Fernanda; Nobre, Fernando; Coelho, Eduardo B.; Vilela-Martin, José F.; Moreno Jr,
Fonte: Universidade Estadual Paulista Publicador: Universidade Estadual Paulista
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
35.79%
Background: Blood pressure (BP) within pre-hypertensive levels confers higher cardiovascular risk and is an intermediate stage for full hypertension, which develops in an annual rate of 7 out of 100 individuals with 40 to 50 years of age. Non-drug interventions to prevent hypertension have had low effectiveness. In individuals with previous cardiovascular disease or diabetes, the use of BP-lowering agents reduces the incidence of major cardiovascular events. In the absence of higher baseline risk, the use of BP agents reduces the incidence of hypertension. The PREVER-prevention trial aims to investigate the efficacy, safety and feasibility of a population-based intervention to prevent the incidence of hypertension and the development of target-organ damage.Methods: This is a randomized, double-blind, placebo-controlled clinical trial, with participants aged 30 to 70 years, with pre-hypertension. The trial arms will be chlorthalidone 12.5 mg plus amiloride 2.5 mg or identical placebo. The primary outcomes will be the incidence of hypertension, adverse events and development or worsening of microalbuminuria and of left ventricular hypertrophy in the EKG. The secondary outcomes will be fatal or non-fatal cardiovascular events: myocardial infarction...

Estudo de associação entre polimorfismo no gene da aldosterona sintase e resistencia ao tratamento anti-hipertensivo; Association study between a genetic polymorphism in aldosterone sinthase and resistance to anti-hypertension treatment

Riccardo Lacchini
Fonte: Biblioteca Digital da Unicamp Publicador: Biblioteca Digital da Unicamp
Tipo: Dissertação de Mestrado Formato: application/pdf
Publicado em 17/11/2008 PT
Relevância na Pesquisa
35.79%
Introdução: Hipertensão Refratária se caracteriza por quadro de hipertensão concomitante ao uso de 3 classes diferentes de anti-hipertensivos, sendo, pelo menos um destes, diurético. Existem fatores genéticos que influenciam mecanismos de controle da pressão arterial, podendo ter papel importante na hipertensão refratária. O sistema Renina-Angiotensina-Aldosterona desempenha um papel central na gênese da hipertensão. Isto torna interessante o estudo das influências genéticas sobre sistemas envolvidos com a produção e transporte da aldosterona. Este trabalho apresenta o estudo de um polimorfismo na região promotora do gene CYP11b2 (troca de timina por citosina na posição -344 do gene), que codifica a aldosterona sintase, enzima responsável pelo último passo na síntese de aldosterona pelas glândulas supra-renais. Secundariamente, o trabalho apresenta o estudo de um polimorfismo no exon 26 do gene da p-glicoproteína (troca de citosina por timina na posição 3435 do gene). Esta proteína está envolvida com resistência a diversos medicamentos na terapêutica (o gene é chamado Muliple Drug Resistance-1, MDR-1), e recentemente foi associada a alterações na excreção e captação tecidual de aldosterona. Objetivos: O estudo visa determinar se existe associação entre o alelo T do polimorfismo -344C/T no gene CYP11b2 e a resistência ao tratamento anti-hipertensivo. Secundariamente...

Exaggerated blood pressure response during the exercise treadmill test as a risk factor for hypertension

Lima,S.G.; Albuquerque,M.F.P.M.; Oliveira,J.R.M.; Ayres,C.F.J.; Cunha,J.E.G.; Oliveira,D.F.; Lemos,R.R.; Souza,M.B.R.; Silva,O. Barbosa e
Fonte: Associação Brasileira de Divulgação Científica Publicador: Associação Brasileira de Divulgação Científica
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/04/2013 EN
Relevância na Pesquisa
35.8%
Exaggerated blood pressure response (EBPR) during the exercise treadmill test (ETT) has been considered to be a risk factor for hypertension. The relationship of polymorphisms of the renin-angiotensin system gene with hypertension has not been established. Our objective was to evaluate whether EBPR during exercise is a clinical marker for hypertension. The study concerned a historical cohort of normotensive individuals. The exposed individuals were those who presented EBPR. At the end of the observation period (41.7 months = 3.5 years), the development of hypertension was analyzed within the two groups. Genetic polymorphisms and blood pressure behavior were assessed as independent variables, together with the classical risk factors for hypertension. The I/D gene polymorphism of the angiotensin-converting enzyme and M235T of angiotensinogen were ruled out as risk factors for hypertension. EBPR during ETT is not an independent influence on the chances of developing hypertension. No differences were observed between the hypertensive and normotensive individuals regarding gender (P = 0.655), skin color (P = 0.636), family history of hypertension (P = 0.225), diabetes mellitus (P = 0.285), or hypertriglyceridemia (P = 0.734). The risk of developing hypertension increased with increasing body mass index (BMI) and advancing age. The risk factors...

Clinical and haemodynamic evaluation of chronic thromboembolic pulmonary hypertension patients scheduled for pulmonary thromboendarterectomy: Is schistosomiasis hypertension an important confounding factor?

Terra-Filho,Mario; Mello,Marcos Figueiredo; Lapa,Mônica Silveira; Teixeira,Ricardo Henrique Oliveira Braga; Jatene,Fábio Biscegli
Fonte: Faculdade de Medicina / USP Publicador: Faculdade de Medicina / USP
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/01/2010 EN
Relevância na Pesquisa
35.79%
INTRODUCTION: Chronic thromboembolic pulmonary hypertension is a disease affecting approximately 4,000 people per year in the United States. The incidence rate in Brazil, however, is unknown. The estimated survival for patients with chronic thromboembolic pulmonary hypertension without treatment is approximately three years. Pulmonary thromboendarterectomy for select patients is a potentially curative procedure when correctly applied. In Brazil, the clinical and hemodynamic profiles of chronic thromboembolic pulmonary hypertension patients have yet to be described. OBJECTIVES: To evaluate the clinical and hemodynamic characteristics of chronic thromboembolic pulmonary hypertension patients scheduled for pulmonary thromboendarterectomy in a referral center for chronic thromboembolic pulmonary hypertension treatment in Brazil. METHODS: From December 2006 to November 2009, patients were evaluated and scheduled for pulmonary thromboendarterectomy. The subjects were classified according to gender, age and functional class and were tested for thrombofilia and brain natriuretic peptide levels. RESULTS: Thirty-five consecutive chronic thromboembolic pulmonary hypertension patients were evaluated. Two patients tested positive for schistosomiasis...

Public education on hypertension: A new initiative to improve the prevention, treatment and control of hypertension in Canada

Campbell, Norman R; Petrella, Robert; Kaczorowski, Janusz
Fonte: Pulsus Group Inc Publicador: Pulsus Group Inc
Tipo: Artigo de Revista Científica
Publicado em /05/2006 EN
Relevância na Pesquisa
35.81%
High blood pressure is one of the leading risk factors for death. Nevertheless, there is a lack of awareness of hypertension as a risk factor, as well as significant misconceptions about hypertension in the Canadian population. Furthermore, according to the Canadian Heart Health Surveys (1985 to 1992), 42% of hypertensive adult Canadians are unaware of their hypertensive status. A collaboration between Blood Pressure Canada, the Heart and Stroke Foundation of Canada, the Canadian Hypertension Society and the Canadian Hypertension Education Program has been formed to improve public and patient awareness and knowledge of hypertension. The effort will involve the translation of Canadian Hypertension Education Program recommendations for the prevention and management of hypertension to a public level with a broad and evolving dissemination strategy; the training of health professionals to speak to the public and patients on hypertension, coupled with opportunities to speak in forums organized in their local communities; and, media releases and information on hypertension in association with World Hypertension Day and the release of the annually updated public recommendations. Based on higher rates of awareness of hypertension in countries with sustained public education programs on hypertension...

Hypothalamic Signaling Mechanisms in Hypertension

Carmichael, Casey Y.; Wainford, Richard D.
Fonte: Springer US Publicador: Springer US
Tipo: Artigo de Revista Científica
EN
Relevância na Pesquisa
35.79%
The etiology of hypertension, a critical public health issue affecting one in three US adults, involves the integration of the actions of multiple organ systems, including the central nervous system. Increased activation of the central nervous system, driving enhanced sympathetic outflow and increased blood pressure, has emerged as a major contributor to the pathogenesis of hypertension. The hypothalamus is a key brain site acting to integrate central and peripheral inputs to ultimately impact blood pressure in multiple disease states that evoke hypertension. This review highlights recent advances that have identified novel signal transduction mechanisms within multiple hypothalamic nuclei (e.g., paraventricular nucleus, arcuate nucleus) acting to drive the pathophysiology of hypertension in neurogenic hypertension, angiotensin II hypertension, salt-sensitive hypertension, chronic intermittent hypoxia, and obesity-induced hypertension. Increased understanding of hypothalamic activity in hypertension has the potential to identify novel targets for future therapeutic interventions designed to treat hypertension.

Risk factors for hypertension during pregnancy in South Australia

Jacobs, D.; Vreeburg, S.; Dekker, G.; Heard, A.; Priest, K.; Chan, A.
Fonte: Australian NZ J Obstet Gynaec Publicador: Australian NZ J Obstet Gynaec
Tipo: Artigo de Revista Científica
Publicado em //2003 EN
Relevância na Pesquisa
35.8%
Objective: To identify risk factors for hypertension in pregnancy among South Australian women. Design: A population-based retrospective analysis using the South Australian perinatal data collection for 1998–2001. Methods: Three groups of women with hypertension (pre-existing hypertension, pregnancy hypertension, and superimposed pre-eclampsia) were compared with normotensive women using unconditional logistic regression analysis on 70 386 singleton births to identify sociodemographic and clinical risk factors for hypertension in pregnancy. Results: Nulliparity, Aboriginal race and Caucasian race (compared with Asian) and pre-existing and gestational diabetes were demonstrated to be risk factors for all hypertensive disorders, as was increasing maternal age for pre-existing hypertension and superimposed pre-eclampsia. Risk was increased for pregnancy hypertension and superimposed pre-eclampsia among women who gave their occupation as ‘home duties’ and also for superimposed pre-eclampsia among unemployed women. Women with hypertension were more likely to give birth in teaching hospitals. Urinary tract infections were not found to be a risk factor for any type of hypertension. Smoking during pregnancy was protective for all types of hypertension. Conclusions: The present study used a statewide population perinatal database and has confirmed that Aboriginal race...

Self-reported knowledge and awareness about blood pressure and hypertension: a cross-sectional study of a random sample of men and women aged 60-74 years

Qvist, I.; Thomsen, M.D.; Lindholt, J.S.; Ibsen, H.; Hendriks, J.M.L.; Frost, L.
Fonte: Dove Medical Press Publicador: Dove Medical Press
Tipo: Artigo de Revista Científica
Publicado em //2014 EN
Relevância na Pesquisa
35.8%
BACKGROUND: In general, it is assumed that patient education, by increasing knowledge, may change behavior and lifestyle and promote health. In this context, it is a surprise that knowledge and awareness about blood pressure and hypertension among elderly people is poor. We hypothesized that knowledge about blood pressure and hypertension would be better among individuals with self-reported hypertension compared with subjects without self-reported hypertension. METHODS: We mailed a questionnaire to a random sample of 1,000 subjects living in the municipality of Silkeborg, Denmark. The study sample was drawn from the Central Person Registry. RESULTS: The response rate was 72%. Of these, 43% of responders had self-reported hypertension. The people with self-reported hypertension were older, less educated, had higher self-reported blood cholesterol levels, had higher body weight, and more often had a family history of hypertension. More than 80% reported that overweight and obesity increases blood pressure. More than 60% reported that untreated hypertension may cause heart disease or stroke. More than half of the responders did not know their blood pressure, and only 21% knew that hypertension can occur without symptoms. Knowledge about hypertension was independent of self-reported hypertension status...

Hypertension artérielle dans la population adulte du Burkina Faso : prévalence, détection, traitement et contrôle

Doulougou, Boukaré
Fonte: Université de Montréal Publicador: Université de Montréal
Tipo: Thèse ou Mémoire numérique / Electronic Thesis or Dissertation
FR
Relevância na Pesquisa
35.81%
Contexte : L’hypertension artérielle (HTA) est reconnue comme un important facteur de risque des maladies cardiovasculaires et de la mortalité prématurée. Les données montrent qu’un adulte sur 4 dans le monde souffrait d’hypertension en 2000 et ce chiffre serait en augmentation. Dans les pays africains, les estimations prévoient une progression plus rapide de la prévalence de l’HTA engendrant ainsi un problème additionnel à gérer pour le système de santé qui est toujours aux prises avec les maladies transmissibles. Les progrès économiques et l’urbanisation semblent entraîner des modifications des habitudes de vie dans ces pays qui seraient associés à une émergence des maladies non transmissibles, dont l’HTA. Le Burkina Faso, pays de l’Afrique de l’Ouest classé comme un pays à faibles revenus, aurait amorcé sa transition épidémiologique et il importe de faire un état sur les maladies non transmissibles en émergence. Afin de contribuer à la connaissance des aspects épidémiologiques de l’HTA au Burkina Faso, trois objectifs spécifiques ont été retenus pour la présente recherche : 1) Estimer la prévalence de l’HTA et identifier les facteurs associés dans la population rurale et la population semi-urbaine du Système de Surveillance démographique et de Santé de Kaya (Kaya HDSS) ; 2) Déterminer la différence de prévalence de l’HTA entre la zone lotie et la zone non lotie de la ville de Ouagadougou et identifier les facteurs associés ; 3) Déterminer la détection...

Prevalência de obesidade e hipertensão arterial e associação com fatores de risco em escolares da cidade de Sorocaba, São Paulo, Brasil; Obesity and arterial hypertension prevalence and their association with risk factors in schoolchildren from Sorocaba city, São Paulo, Brazil

Isabela Annunziato Ramos Mazaro
Fonte: Biblioteca Digital da Unicamp Publicador: Biblioteca Digital da Unicamp
Tipo: Dissertação de Mestrado Formato: application/pdf
Publicado em 02/06/2011 PT
Relevância na Pesquisa
35.79%
INTRODUÇÃO: Nas últimas décadas houve aumento significativo da prevalência da obesidade e de suas complicações na faixa etária pediátrica, incluindo a hipertensão arterial. OBJETIVO: Estimar a prevalência da obesidade e da hipertensão arterial e da associação destas com fatores de risco em estudantes de Sorocaba (SP). MÉTODO: Estudo transversal, de base populacional fixa e amostra aleatória com observação individual de 680 alunos de 7 a 11 anos. Foram avaliados: sexo, idade, região de moradia, classificação econômica, antecedentes pessoais, maternos e paternos para hipertensão arterial, doença renal e cardíaca, realização de atividade física fora da escola, tempo com TV/VG/PC. Foram realizadas medidas de: peso, altura, circunferência da cintura, dobras cutâneas, PA e verificado a presença de acanthosis nigricans. Calculou-se a prevalência de sobrepeso, obesidade e excesso de peso; pré-hipertensão, hipertensão arterial e de PA elevada. Para associação destes com as demais variáveis empregou-se o teste do qui-quadrado ou o Exato de Fisher (p<0,05). Determinou-se a razão de chances prevalente bruta e ajustada por regressão logística. RESULTADOS: Do total: 49% eram do sexo masculino, sendo, 19% com 7 anos; 23...

High blood pressure six weeks postpartum after hypertensive pregnancy disorders at term is associated with chronic hypertension

Visser, V.; Hermes, W.; Franx, A.; Koopmans, C.; van Pampus, M.; Mol, B.; de Groot, C.
Fonte: Elsevier BV Publicador: Elsevier BV
Tipo: Artigo de Revista Científica
Publicado em //2013 EN
Relevância na Pesquisa
35.8%
OBJECTIVES: Hypertension in pregnancy is associated with cardiovascular disease (CVD) later in life. Blood pressure monitoring in women who experienced hypertension in pregnancy after puerperium has been suggested to be important for early detection and prevention of CVD. The aim of this study is to evaluate if hypertension six weeks postpartum is associated with chronic hypertension in women with a history of term hypertensive pregnancy disorders. STUDY DESIGN: Women with a history of term gestational hypertension or preeclampsia were included in a follow up study of the HYPITAT trial. Blood pressures were measured six weeks and 2.5years postpartum according to the study protocol. MAIN OUTCOME MEASURES: Hypertension was defined as a diastolic blood pressure ⩾90mmHg and/or a systolic blood pressure ⩾140mmHg or use of antihypertensive medication. Differences in categorical variables between groups were analyzed by Chi-Square tests. Blood pressure was analyzed using unpaired t-tests and Wilcox ranked tests. RESULTS: Among 187 women who had term hypertensive pregnancy disorders, 75 (40%) had hypertension at six weeks postpartum. Of these 46 (61%) had hypertension 2.5years postpartum. In contrast, of 112 women without hypertension at six weeks postpartum...

Clinical and haemodynamic evaluation of chronic thromboembolic pulmonary hypertension patients scheduled for pulmonary thromboendarterectomy: Is schistosomiasis hypertension an important confounding factor?

Terra-Filho, Mario; Mello, Marcos Figueiredo; Lapa, Mônica Silveira; Teixeira, Ricardo Henrique Oliveira Braga; Jatene, Fábio Biscegli
Fonte: Universidade de São Paulo. Faculdade de Medicina Publicador: Universidade de São Paulo. Faculdade de Medicina
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ; ; ; ; ; Formato: application/pdf
Publicado em 01/01/2010 ENG
Relevância na Pesquisa
35.79%
INTRODUCTION: Chronic thromboembolic pulmonary hypertension is a disease affecting approximately 4,000 people per year in the United States. The incidence rate in Brazil, however, is unknown. The estimated survival for patients with chronic thromboembolic pulmonary hypertension without treatment is approximately three years. Pulmonary thromboendarterectomy for select patients is a potentially curative procedure when correctly applied. In Brazil, the clinical and hemodynamic profiles of chronic thromboembolic pulmonary hypertension patients have yet to be described. OBJECTIVES: To evaluate the clinical and hemodynamic characteristics of chronic thromboembolic pulmonary hypertension patients scheduled for pulmonary thromboendarterectomy in a referral center for chronic thromboembolic pulmonary hypertension treatment in Brazil. METHODS: From December 2006 to November 2009, patients were evaluated and scheduled for pulmonary thromboendarterectomy. The subjects were classified according to gender, age and functional class and were tested for thrombofilia and brain natriuretic peptide levels. RESULTS: Thirty-five consecutive chronic thromboembolic pulmonary hypertension patients were evaluated. Two patients tested positive for schistosomiasis...

Lipopolysaccharide Reverses Adrenocorticotrophic Hormone-Induced Hypertension in the Rat

Zhang, Yi; Schyvens, Chris; McKenzie, Katja; Morris, Brian; Whitworth, Judith
Fonte: Japanese Society for Hypertension Publicador: Japanese Society for Hypertension
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
45.72%
Lipopolysaccharide (LPS) was used to stimulate nitric oxide (NO) release and investigate the effect of endogenous NO on adrenocorticotrophic hormone (ACTH)-induced hypertension in rats. After preliminary studies to determine the appropriate dose of LPS, 40 male Sprague-Dawley rats were treated with ACTH (200 μg/kg/day, s.c.) or saline (sham) for 8 days and then given a single dose of LPS (10 mg/kg, i.p.) or saline. ACTH treatment was continued for a further 5 days. Systolic blood pressure (SBP) was measured daily using the tail cuff method. Results were expressed as the mean±SEM. ACTH treatment significantly increased SBP (from 105±3 to 129±4 mmHg; p<0.05), whereas saline had no effect on SBP. The ACTH-induced increase in SBP was reversed by LPS injection (from 125±6 to 102±7 mmHg; p<0.05). SBP was also decreased in sham + LPS-treated rats compared with that of sham + saline-treated rats (p<0.05), but the SBP change in response to LPS was greater in ACTH-treated than in sham-treated rats (-23 vs. -8 mmHg; p<0.05). These data are compatible with the notion that reduced NO availability plays a role in ACTH-induced hypertension.

Patterns of left ventricular remodeling among patients with essential and secondary hypertension

Radulescu,Dan; Stoicescu,Laurentiu; Buzdugan,Elena; Donca,Valer
Fonte: Sociedad Médica de Santiago Publicador: Sociedad Médica de Santiago
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/12/2013 EN
Relevância na Pesquisa
35.8%
Background: High blood pressure causes left ventricular hypertrophy, which is a negative prognostic factor among hypertensive patients. Aim: To assess left ventricular geometric remodeling patterns in patients with essential hypertension or with hypertension secondary to parenchymal renal disease. Material and Methods: We analyzed data from echocardiograms performed in 250patients with essential hypertension (150 females) and 100 patients with secondary hypertension (60 females). The interventricular septum and the left ventricular posterior wall thickness were measured in the parasternal long-axis. Left ventricular mass was calculated using the Devereaux formula. Results: The most common remodeling type in females and males with essential hypertension were eccentric and concentric left ventricular hypertrophy (cLVH), respectively. Among patients with secondary arterial hypertension, cLVH was most commonly observed in both genders. The prevalence of left ventricular hypertrophy was higher among patients with secondary hypertension. The left ventricular mass index and the relative left ventricular wall thickness were higher in males and also in the secondary hypertension group. Age, blood pressure values and the duration of hypertension...