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2.
In. Consolim-Colombo, Fernanda M; Saraiva, José Francisco Kerr; Izar, Maria Cristina de Oliveira. Tratado de Cardiologia: SOCESP / Cardiology Treaty: SOCESP. São Paulo, Manole, 4ª; 2019. p.506-517.
Monografia em Português | LILACS | ID: biblio-1009121
4.
Arq Bras Cardiol ; 110(6): 522-523, 2018 Jun.
Artigo em Inglês, Português | MEDLINE | ID: mdl-30226909
5.
Rev. Soc. Cardiol. Estado de Säo Paulo ; 28(3)jul.-ago. 2018. tab, graf
Artigo em Português | LILACS | ID: biblio-916417

RESUMO

As situações clínicas de aumento súbito da pressão arterial (PA) que caracterizam as crises hipertensivas são comuns na prática clínica, principalmente nas consultas realiza-das no pronto atendimento, portanto, o diagnóstico adequado é essencial para o melhor tratamento e desfecho clínico. A crise hipertensiva é definida pelo aumento súbito na PA (≥180 /120 mmHg) e a necessidade da redução agressiva da PA depende da gravidade da situação clinica associada. A presença de lesões novas ou progressivas em órgãos-alvo e risco iminente de morte definem as emergências hipertensivas que requerem tratamento imediato visando a rápida redução da pressão arterial, porém, não, necessariamente, a níveis normais. Na maioria dos casos, a velocidade do aumento da PA é mais importante que o nível real da PA, portanto, é fundamental que haja avaliação clínica para o diagnóstico preciso dessas condições clínicas, as quais incluem encefalopatia hipertensiva, síndromes coronarianas agudas, edema agudo dos pulmões, acidente vascular cerebral, dissecção de aorta e eclampsia. As metas para diminuição da PA para as emergências hipertensivas, de acordo com o órgão-alvo envolvido, são revisadas pelas atuais diretrizes brasileiras e ame-ricanas de hipertensão. O tratamento das emergências hipertensivas inclui vasodilatadores de ação direta e bloqueadores adrenérgicos já consagrados, entretanto, evidências recentes mostram o benefício do uso de novos fármacos ainda não disponíveis em nosso meio


The clinical conditions of an acute rise in blood pressure (BP) that characterize hyperten-sive crises are common in clinical practice, particularly in consultations that take place in the emergency room. Therefore the correct diagnosis is important for the best treatment and clinical outcome. Hypertensive crisis is defined as a sudden rise in BP (≥ 180/120 mmHg), and the need for aggressive reduction of BP depends on the severity of the associated clinical situation. The presence of new or progressive target organ injury and imminent risk of death define hypertensive emergencies requiring immediate treatment aimed at rapid reduction of blood pressure, not ne-cessarily to normal levels. In most cases, the speed of the rise in BP is more important than the actual level of BP, and clinical evaluation is essential for the accurate diagnosis of these clinical conditions, which include hypertensive encephalopathy, acute coronary syndromes, pulmonary edema, stroke, aortic dissection, and eclampsia. The goals of BP reduction for hypertensive emergencies, according to the target organ involved, have been reviewed by the current Brazi-lian and American guidelines on hypertension. Treatment of hypertensive emergencies includes direct action vasodilators and adrenergic blockers, which are already well established, but recent evidence shows the benefit of the use of new drugs, not yet available in Brazil


Assuntos
Humanos , Masculino , Feminino , Hipertensão/diagnóstico , Hipertensão/terapia , Fatores de Risco , Síndrome Coronariana Aguda/complicações , Anti-Hipertensivos/uso terapêutico , Aorta , Doenças Cardiovasculares/fisiopatologia , Clonidina/uso terapêutico , Dissecação/métodos , Ecocardiografia/métodos , Eletrocardiografia/métodos , Guias como Assunto/normas , Nitroprussiato/uso terapêutico , Acidente Vascular Cerebral , Órgãos-Alvo , Vasodilatadores/uso terapêutico
6.
BMC Cardiovasc Disord ; 18(1): 123, 2018 Jun 19.
Artigo em Inglês | MEDLINE | ID: mdl-29921220

RESUMO

BACKGROUND: Evidences suggest that central hemodynamics indexes are independent predictors of future cardiovascular events and all-cause mortality. Multiple factors have been pointed to have potential influence on central aortic function: height, heart rate, left ventricular ejection duration and blood pressure level. Data related to the influence of gender and postmenopausal status on aortic waveform reflection is scarce. We aim to evaluate the impact of gender and menopause on central blood pressure of hypertensive patients. METHODS: In a cross sectional study 122 hypertensive patients (52 men and 70 women) were studied. Hypertension was defined as blood pressure (BP) levels ≥140/90 mmHg or use of antihypertensive drugs. Central arterial pressure, augmentation index (AIx) and augmentation index normalized to 75 bpm (AIx75) were obtained using applanation tonometry. Menopause and postmenopause history were accessed by a direct series of questions. Postmenopause was defined as at least one year since last menstruation. Patients were paired by age, gender and menopausal status, and the data were compared considering gender and menopausal status. RESULTS: Height and weight were significantly lower in women than in men at the same age. Conversely, AIx (32.7 ± 9.8% vs. 20.1 ± 11.7%, p < 0.01), AIx75 (29.6 ± 6.7% vs. 18.3 ± 9.4%, p < 0.01) and central systolic blood pressure (136 ± 30 vs. 125 ± 23 mmHg, p = 0.03) were higher in women than men. The menopausal women (mean age of menopause = 48 years) had the worst indexes of aortic wave reflection, compared to men at the same age and younger women. CONCLUSION: Hypertensive women had both higher reflected aortic pressure waveform and central blood pressure indexes than hypertensive men, and these findings were worsened by the menopausal status.

7.
Arq Bras Cardiol ; 110(5): 430-437, 2018 May.
Artigo em Inglês, Português | MEDLINE | ID: mdl-29898042

RESUMO

BACKGROUND: Recent studies have shown a lower prevalence of metabolic syndrome (MSyn) in vegetarians (VEG) despite the inconclusive evidence from others. OBJECTIVE: To verify the association between diet and other lifestyle characteristics and the prevalence of MSyn, cardiovascular risk factors (CRF), and Framingham Risk Score (FRS) in apparently healthy VEG and omnivorous (OMN) men. METHODS: In this cross-sectional study, 88 apparently healthy men ≥ 35 years, 44 VEG and 44 OMN, were assessed for anthropometric data, blood pressure, blood lipids, glucose, C-reactive protein (CRP) and FRS. To test the association between lifestyle and MSyn, Student t test, chi-square test, and multiple logistic regression model were used. A significance level of 5% was considered in all statistical analyses. RESULTS: Several CRF were significantly lower in VEG than in OMN: body mass index, systolic blood pressure, diastolic blood pressure, fasting serum total cholesterol, LDL-cholesterol, apolipoprotein b, glucose, and glycated hemoglobin (all p < 0.05). The FRS mean was lower in VEG than in OMN (2.98 ± 3.7 vs 4.82 ± 4.8, p = 0.029). The percentage of individuals with MSyn was higher among OMN than among VEG (52.3 vs.15.9%) (p < 0.001). The OMN diet was associated with MSyn (OR: 6.28 95%CI 2.11-18.71) and alterations in most MSyn components in the multiple regression model independently of caloric intake, age and physical activity. CONCLUSION: The VEG diet was associated with lower CRF, FRS and percentage of individuals with MSyn.


Assuntos
Doenças Cardiovasculares/epidemiologia , Síndrome Metabólica/epidemiologia , Vegetarianos , Adulto , Antropometria , Índice de Massa Corporal , Brasil/epidemiologia , Doenças Cardiovasculares/prevenção & controle , Colesterol , LDL-Colesterol , Estudos Transversais , Dieta Vegetariana , Ingestão de Energia , Humanos , Estilo de Vida , Masculino , Síndrome Metabólica/prevenção & controle , Pessoa de Meia-Idade , Prevalência , Fatores de Risco , Inquéritos e Questionários
9.
Arq. bras. cardiol ; 110(5): 430-437, May 2018. tab
Artigo em Inglês | LILACS-Express | ID: biblio-950148

RESUMO

Abstract Background: Recent studies have shown a lower prevalence of metabolic syndrome (MSyn) in vegetarians (VEG) despite the inconclusive evidence from others. Objective: To verify the association between diet and other lifestyle characteristics and the prevalence of MSyn, cardiovascular risk factors (CRF), and Framingham Risk Score (FRS) in apparently healthy VEG and omnivorous (OMN) men. Methods: In this cross-sectional study, 88 apparently healthy men ≥ 35 years, 44 VEG and 44 OMN, were assessed for anthropometric data, blood pressure, blood lipids, glucose, C-reactive protein (CRP) and FRS. To test the association between lifestyle and MSyn, Student t test, chi-square test, and multiple logistic regression model were used. A significance level of 5% was considered in all statistical analyses. Results: Several CRF were significantly lower in VEG than in OMN: body mass index, systolic blood pressure, diastolic blood pressure, fasting serum total cholesterol, LDL-cholesterol, apolipoprotein b, glucose, and glycated hemoglobin (all p < 0.05). The FRS mean was lower in VEG than in OMN (2.98 ± 3.7 vs 4.82 ± 4.8, p = 0.029). The percentage of individuals with MSyn was higher among OMN than among VEG (52.3 vs.15.9%) (p < 0.001). The OMN diet was associated with MSyn (OR: 6.28 95%CI 2.11-18.71) and alterations in most MSyn components in the multiple regression model independently of caloric intake, age and physical activity. Conclusion: The VEG diet was associated with lower CRF, FRS and percentage of individuals with MSyn.


Resumo Fundamento: Estudos recentes mostraram menor prevalência de Síndrome Metabólica (SM) em vegetarianos (VEG), apesar de evidências inconclusivas de outros. Objetivo: Verificar associação entre dieta e características do estilo de vida e a prevalência de SM, fatores de risco cardiovascular (FRCV) e Escore de Framingham (EF) em homens VEG e onívoros (ONI) aparentemente saudáveis. Métodos: Neste estudo transversal, 88 homens aparentemente saudáveis ≥ 35 anos, VEG (n = 44) e ONI (n = 44), foram avaliados quanto a dados antropométricos, pressão arterial, lípides plasmáticos, glicemia, proteína C reativa e EF. Para testar associação entre estilo de vida e SM, o teste t de Student, o teste qui-quadrado e a regressão logística múltipla foram utilizados. Foi considerado nível de significância de 5% em todas as análises estatísticas. Resultados: Os níveis dos FRCV avaliados foram menores nos VEG do que nos ONI: índice de massa corporal, pressão arterial sistólica e diastólica, colesterol total, LDL-colesterol, apolipoproteína b, glicemia e hemoglobina glicada (p < 0,05). O EF foi menor nos VEG do que nos ONI (2,98 ± 3,7 vs. 4,82 ± 4,8; p = 0,029). A porcentagem de indivíduos com SM foi maior entre ONI do que entre VEG (52,3 vs.15,9%) (p < 0,001). A dieta ONI foi associada com a SM (OR: 6,28 IC95% 2,11-18,71) e alterações na maioria dos componentes da SM no modelo de regressão logística múltipla, independentemente de ingestão calórica, idade e atividade física. Conclusão: A dieta VEG foi associada com menores taxas de FRC e menores EF e porcentagem de indivíduos com SM.

10.
J Hypertens ; 36(4): 933-938, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-29227377

RESUMO

BACKGROUND: To determine the effectiveness of low-dose diuretic therapy to achieve an optimal level of blood pressure (BP) in adults with prehypertension. METHODS: The PREVER-prevention trial was a randomized, parallel, double-blinded, placebo-controlled trial, with 18 months of follow-up, conducted at 21 academic medical centers in Brazil. Of 1772 individuals evaluated for eligibility, 730 volunteers with prehypertension who were aged 30-70 years, and who did not reach optimal blood pressure after 3 months of lifestyle intervention, were randomized to a fixed association of chlorthalidone 12.5 mg and amiloride 2.5 mg or placebo once a day. The main outcomes were the percentage of participants who achieved an optimal level of BP. RESULTS: A total of 372 participants were randomly allocated to diuretics and 358 to placebo. After 18 months of treatment, optimal BP was noted in 25.6% of the diuretic group and 19.3% in the placebo group (P < 0.05). The mean net reduction in SBP and DBP for the diuretic group compared with placebo was 2.8 mmHg (95% CI 1.1 to 4.5) and 1.1 mmHg (95% CI -0.09 to 2.4), respectively. Most participants in the active treatment group (74.5%) and in the placebo group (80.7%) continued to have BP in the prehypertension range or progressed to hypertension. CONCLUSION: Low-dose diuretic therapy increased the probability of individuals with prehypertension to achieve optimal BP but most of those treated continued to have a BP in the prehypertension range or progressed to having overt hypertension.

11.
Rev. Soc. Cardiol. Estado de Säo Paulo ; 28(2 Supl): 224-229, 2018.
Artigo em Português | LILACS | ID: biblio-909692

RESUMO

A doença renal crônica (DRC) é um problema da saúde pública mundial e preditora para progressão da doença arterial coronariana (DAC), causando limitações e alterações na vida cotidiana dos pacientes e familiares e, consequentemente, na qualidade de vida. Nesse cenário, o Assistente Social, como integrante da equipe multiprofissional, propõe alternativas de enfrentamento às situações que comprometem o processo da saú - de-doença dos pacientes. O estudo tem como objetivos avaliar o impacto da presença da DAC na qualidade de vida dos pacientes em hemodiálise e identificar as diferenças no perfil sociodemográfico desses pacientes, conforme a presença da doença. Método: Estudo trans - versal e descritivo realizado com 51 pacientes em hemodiálise (30 com DAC e 21 sem DAC), em um hospital universitário de cardiologia de São Paulo, através de questionário de qualidade de vida para pacientes em tratamento dialítico KDQOL-SF TM 1.3, questionário socioeconômico e dados clínicos descritos em prontuário eletrônico. Resultados: No to - tal dos pacientes, houve predomínio do sexo masculino, da cor/raça autodeclarada par - da e preta, ensino fundamental incompleto e em benefício previdenciário/assistencial. Os pacientes sem DAC encontram-se aproximadamente dois anos a mais em tratamento dia - lítico. Entre as dimensões do KDQOL-SF TM 1.3, os pacientes com DAC apresentaram melhores índices de qualidade de vida. Conclusão: A qualidade de vida dos pacientes com DRC em hemodiálise que apresentam diagnóstico de DAC, apresentou-se relativamente melhor do que a dos pacientes sem DAC. Não houve diferenças sociodemográficas relevantes entre os grupo


Chronic kidney disease (CKD) is a worldwide public health problem and a predictor of the progression of coronary artery disease (CAD), causing limitations and changes in the daily lives of patients and their families and, therefore, in their quality of life. In this scenario, the Social Worker, as a member of a multiprofessional team, proposes alternatives for coping with situations that compromise patients' health-disease process. The aims of this study were to assess the impact of the presence of CAD on the quality of life of patients on hemodialysis, and to identify the differences in sociodemographic profile of these patients, according to the presence of CAD. Methods: A cross-sectional, descriptive study was conducted with 51 patients on hemodialysis treatment, (30 with CAD and 21 without CAD), at a university cardiology hospital in the city of São Paulo, using a quality of life questionnaire for patients on dialysis treatment KDQOL-SF TM 1.3, a socioeconomic questionnaire, and clinical data described in the electronic medical records. Results: Of the total patients, there was a predominance of males, with self-declared color/race Brown and Black, incomplete primary education, and receiving social security benefits. The patients without CAD had been in dialysis treatment for approximately two years more. Among the dimensions of the KDQOL-SF TM 1.3, patients with CAD had better quality of life indices. Conclusion: The quality of life of patients with CKD on hemodialysis and diagnosed with CAD was relatively better than that of patients without ut CAD. There were no relevant sociodemographic differences between the group


Assuntos
Humanos , Doença da Artéria Coronariana/classificação , Diálise Renal/estatística & dados numéricos , Insuficiência Renal Crônica/diagnóstico por imagem , Serviço Social , Comorbidade , Qualidade de Vida , Inquéritos e Questionários , Fatores de Tempo
12.
In. Ramires, José Antonio Franchini; Kalil Filho, Roberto; Santos Filho, Raul Dias dos; Casella Filho, Antonio. Dislipidemias e prevenção da Aterosclerose / Dyslipidemias and prevention of Atherosclerosis. Rio de janeiro, Atheneu, 2018. p.69-75.
Monografia em Português | LILACS | ID: biblio-880894
13.
J Diabetes Res ; 2018: 7926473, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30596103

RESUMO

Background: Patients with chronic kidney disease (CKD) and type 2 diabetes mellitus (DM) have increased risk of endothelial dysfunction, cardiovascular disease, and mortality. Several studies have separately analyzed endothelial function in these populations. However, data of patients with both CKD and DM are scarce. The aim of this study was to evaluate whether the presence of DM has any additional effect on the endothelial dysfunction of CKD patients. Methods: We measured endothelial progenitor cells (EPCs), stromal-derived factor 1 alpha (SDF-1α), serum and urinary nitric oxide (NO), flow-mediated dilation (FMD), and pulse wave velocity (PWV) in 37 CKD patients with DM (CKD-DM group) and in 37 without DM (CKD group). Results: CKD-DM group had a higher prevalence of obesity (P < 0.01), previous myocardial infarction (P = 0.02), myocardial revascularization (P = 0.04), and a trend for more peripheral artery disease (P = 0.07). Additionally, CKD-DM group had higher EPC (P = 0.001) and PWV (P < 0.001) values. On the other hand, no difference in SDF-1α and serum or urinary NO and FMD was observed between the groups. Conclusions: Endothelial dysfunction is frequent in CKD patients, and an additive effect of diabetes cannot be implicated, suggesting the predominant role of uremia in this condition.


Assuntos
Quimiocina CXCL12/sangue , Diabetes Mellitus Tipo 2/fisiopatologia , Endotélio Vascular/fisiopatologia , Insuficiência Renal Crônica/fisiopatologia , Idoso , Idoso de 80 Anos ou mais , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/complicações , Células Progenitoras Endoteliais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Óxido Nítrico/sangue , Análise de Onda de Pulso , Insuficiência Renal Crônica/sangue , Insuficiência Renal Crônica/complicações
14.
Rev. ciênc. méd., (Campinas) ; 26(3): 135-141, set.-dez. 2017. ilus
Artigo em Português | LILACS | ID: biblio-948390

RESUMO

A histoplasmose é uma infecção sistêmica causada por um fungo dimórfico, comumente encontrado em solo contaminado por fezes de aves e morcegos. Em indivíduos imunocompetentes, cerca de 95% das infecções são assintomáticas, mas ocasionalmente a inalação de conídios pode causar manifestações pulmonares agudas ou crônicas. Indivíduos transplantados estão suscetíveis às infecções, mesmo no seguimento tardio do pós-operatório. Essas infecções, em pacientes imunossuprimidos, podem ser de difícil diagnóstico com quadros clínicos atípicos e alto risco de complicações. É relatado um caso de histoplasmose pulmonar em um jovem de 15 anos, transplantado há seis anos, que evoluiu para sepse, insufi ciência renal e respiratória, com consequente imobilismo e redução da capacidade funcional. O tratamento clínico e a intervenção fisioterapêutica, por meio de aplicação de ventilação não invasiva e programa de treinamento físico com cargas progressivas, resultaram em reversão da insuficiência respiratória e restabelecimento da capacidade funcional, respectivamente, com alta hospitalar após 57 dias de internação


Histoplasmosis is a systemic infection caused by a dimorphic fungus commonly found in the ground contaminated by feces from birds and bats. In immunocompetent individuals, about 95% of infections are asymptomatic, but occasionally the inhalation of conidia can cause acute or chronic pulmonary manifestations. Transplanted individuals are susceptible to infections even at late postoperative follow-up. These infections, in patients immunosuppressed, may be difficult to diagnose with atypical clinical high risk of complications. One case of pulmonary histoplasmosis is reported in a 15-year-old man, transplanted six years ago, who progressed to sepsis, renal and respiratory failure, resulting in immobility and reduced functional capacity. Clinical treatment and physical therapy intervention, through the application of noninvasive ventilation and physical training program with progressive loads, resulted in reversion of respiratory failure and restoration of functional capacity, then hospital discharge after 57 days of hospitalization


Assuntos
Humanos , Masculino , Adolescente , Transplante de Coração , Fisioterapia , Histoplasmose
15.
Int. j. cardiovasc. sci. (Impr.) ; 30(5): f:433-l:441, set.-out. 2017. tab, ilus
Artigo em Português | LILACS | ID: biblio-859030

RESUMO

As doenças cardiovasculares (DCV) são a principal causa de morte e representam uma percentagem significativa das internações. No cenário de minimização dos custos ao sistema de saúde, métodos que identifiquem DCV subclínica seriam importantes. Algumas diretrizes incluem a medida da rigidez aórtica e da espessura íntima-média da artéria carótida como métodos para identificação de DCV subclínica em hipertensos. A velocidade de onda de pulso (VOP) é considerada padrão-ouro para avaliar a rigidez arterial. Nesta revisão, abordamos a fisiopatologia e os determinantes da rigidez arterial e justificamos sua inclusão na avaliação do paciente hipertenso dada a associação direta com o risco cardiovascular, como estabelecido na I Diretriz Brasileira de Prevenção Cardiovascular. Apresentamos ainda os principais estudos genéticos deste fenótipo que, dada sua complexidade, pode ser modulado por dezenas de genes. No entanto, um melhor entendimento da relação genética-rigidez arterial, e até mesmo uma intervenção baseada em genótipos, devem ser investigadas em estudos futuros


Assuntos
Humanos , Masculino , Feminino , Fenótipo , Polimorfismo Genético/genética , Rigidez Vascular , Envelhecimento , Aterosclerose/fisiopatologia , Doenças Cardiovasculares/fisiopatologia , Artérias Carótidas/fisiopatologia , Diabetes Mellitus , Fatores de Risco
16.
Clinics (Sao Paulo) ; 72(7): 411-414, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-28793000

RESUMO

OBJECTIVE:: The purpose of this study was to evaluate the association between the presence of clinical symptoms of peripheral artery disease and severe renal artery stenosis in patients referred for renal angiography. METHOD:: We included 82 patients with clinical suspicion of renovascular hypertension and performed an imaging investigation (renal Doppler ultrasound and/or renal scintigraphy) for possible renal artery stenosis. All patients underwent renal arteriography and were examined for peripheral artery disease based on the presence of intermittent claudication and ankle-brachial index test results. Severe renal artery stenosis was defined as a lesion causing 70% obstruction. RESULTS:: Severe renal artery stenosis was present in 32 of 82 (39%) patients. Patients with severe renal artery stenosis were older (63±12 vs 56±12 years, p=0.006), had more intermittent claudication (55 vs 45%, p=0.027), and had a greater prevalence of an ankle-brachial index <0.9 (44% vs 20%, p=0.021) than patients without severe renal artery stenosis. Multivariate logistic regression analysis showed that the presence of intermittent claudication was independently associated with renal artery stenosis ≥70% (OR: 3.33; 95% CI 1.03-10.82, p=0.04), unlike the ankle-brachial index, which showed no association (OR: 1.44; 95% CI 0.37-5.66, p=0.60). CONCLUSION:: Intermittent claudication is independently associated with severe renal artery stenosis (≥70%) in patients clinically suspected of having renovascular hypertension.


Assuntos
Hipertensão Renovascular/complicações , Claudicação Intermitente/complicações , Obstrução da Artéria Renal/complicações , Artéria Renal/diagnóstico por imagem , Angiografia , Feminino , Humanos , Hipertensão Renovascular/diagnóstico por imagem , Claudicação Intermitente/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Cintilografia , Obstrução da Artéria Renal/diagnóstico por imagem , Índice de Gravidade de Doença , Ultrassonografia Doppler
17.
Clinics ; 72(7): 411-414, July 2017. tab
Artigo em Inglês | LILACS | ID: biblio-890712

RESUMO

OBJECTIVE: The purpose of this study was to evaluate the association between the presence of clinical symptoms of peripheral artery disease and severe renal artery stenosis in patients referred for renal angiography. METHOD: We included 82 patients with clinical suspicion of renovascular hypertension and performed an imaging investigation (renal Doppler ultrasound and/or renal scintigraphy) for possible renal artery stenosis. All patients underwent renal arteriography and were examined for peripheral artery disease based on the presence of intermittent claudication and ankle-brachial index test results. Severe renal artery stenosis was defined as a lesion causing 70% obstruction. RESULTS: Severe renal artery stenosis was present in 32 of 82 (39%) patients. Patients with severe renal artery stenosis were older (63±12 vs 56±12 years, p=0.006), had more intermittent claudication (55 vs 45%, p=0.027), and had a greater prevalence of an ankle-brachial index <0.9 (44% vs 20%, p=0.021) than patients without severe renal artery stenosis. Multivariate logistic regression analysis showed that the presence of intermittent claudication was independently associated with renal artery stenosis ≥70% (OR: 3.33; 95% CI 1.03-10.82, p=0.04), unlike the ankle-brachial index, which showed no association (OR: 1.44; 95% CI 0.37-5.66, p=0.60). CONCLUSION: Intermittent claudication is independently associated with severe renal artery stenosis (≥70%) in patients clinically suspected of having renovascular hypertension.


Assuntos
Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Hipertensão Renovascular/complicações , Claudicação Intermitente/complicações , Obstrução da Artéria Renal/complicações , Artéria Renal/diagnóstico por imagem , Angiografia , Hipertensão Renovascular/diagnóstico por imagem , Claudicação Intermitente/diagnóstico por imagem , Cintilografia , Obstrução da Artéria Renal/diagnóstico por imagem , Índice de Gravidade de Doença , Ultrassonografia Doppler
18.
Int J Cardiol ; 230: 562-566, 2017 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-28062141

RESUMO

BACKGROUND: Dietary habits play an important role in the development of atherosclerosis, the most important cause of morbidity and mortality in the world. The objective of this study was to verify if vegetarian (VEG) diet could be related a better profile of subclinical vascular disease evaluated by arterial stiffness and functional and structural properties of carotid arteries, compared to omnivorous (OMN) diet. METHODS: In this cross-sectional study, 44 VEG and 44 OMN apparently healthy men ≥35years of age, in order to not have confounding risk factors of subclinical atherosclerosis, were assessed for anthropometric data, blood pressure, blood lipids, glucose, C reactive protein (CRP), and arterial stiffness determined by carotid-femoral pulse wave velocity (PWV). Also, carotid intima-media thickness (c-IMT) and distensibility were evaluated. RESULTS: VEG men had lower body mass index, systolic and diastolic blood pressures, fasting serum total cholesterol, LDL and non-HDL-cholesterol, apolipoprotein B, glucose and glycated hemoglobin values in comparison with OMN individuals (all p values <0.05). Markers of vascular structure and function were different between VEG and OMN: PWV 7.1±0.8m/s vs. 7.7±0.9m/s (p<0.001); c-IMT 593±94 vs. 661±128µm (p=0.003); and relative carotid distensibility 6.39±1.7 vs. 5.72±1.8% (p=0.042), respectively. After a multivariate linear regression analysis, a VEG diet was independently and negatively associated with PWV (p value 0.005). CONCLUSIONS: A VEG diet is associated with a more favorable cardiovascular diseases biomarker profile and better vascular structural and functional parameters.


Assuntos
Aterosclerose/fisiopatologia , Velocidade do Fluxo Sanguíneo/fisiologia , Artérias Carótidas/fisiopatologia , Rigidez Vascular/fisiologia , Vegetarianos , Adulto , Aterosclerose/diagnóstico , Aterosclerose/epidemiologia , Brasil/epidemiologia , Artérias Carótidas/diagnóstico por imagem , Espessura Intima-Media Carotídea , Estudos Transversais , Voluntários Saudáveis , Humanos , Masculino , Pessoa de Meia-Idade , Morbidade/tendências , Fluxo Pulsátil , Estudos Retrospectivos , Fatores de Risco , Taxa de Sobrevida/tendências
19.
J Bras Nefrol ; 38(3): 320-326, 2016 Jul-Sep.
Artigo em Inglês, Português | MEDLINE | ID: mdl-27737390

RESUMO

Introduction: Bone metabolism disorder (BMD) and vascular dysfunction contribute to excess cardiovascular mortality observed in hemodialysis patients. Vascular dysfunction, a new marker of atherosclerosis, can play a role in this risk. Even though associated with higher mortality in the general population, such vascular evaluation in patients on hemodialysis has not been extensively studied. Methods: In this cross-sectional study, hemodialysis patients were submitted to flow-mediated dilation, subendocardial viability ratio (SEVR) and ejection duration index assessment, in order to estimate the impact of BMD markers on vascular dysfunction. Results: A matched cohort of patients with (n = 16) and without (n = 11) severe secondary hyperparathyroidism (SHPT) was studied. Additionally, time spent under severe SHPT was also evaluated. Patients with severe SHPT had lower SEVR and higher ejection duration index, indicating higher cardiovascular risk. Lower SEVR was also associated to diastolic blood pressure (r = 0.435, p = 0.049), serum 25-Vitamin-D levels (r = 0.479, p = 0.028) and to more time spent under severe secondary hyperparathyroidism (SHPT), defined as time from PTH > 500pg/ml until parathyroidectomy surgery or end of the study (r = -0.642, p = 0.027). In stepwise multiple regression analysis between SEVR and independent variables, lower SEVR was independently associated to lower serum 25-Vitamin-D levels (p = 0.005), female sex (p = 0.012) and more time spent under severe SHPT (p = 0.001) in a model adjusted for age, serum cholesterol, and blood pressure (adjusted r² = 0.545, p = 0.001). Conclusion: Subendocardial perfusion was lower in patients with BMD, reflecting higher cardiovascular risk in this population. Whether early parathyroidectomy in the course of kidney disease could modify such results still deserves further investigation.


Assuntos
Endocárdio , Isquemia Miocárdica/epidemiologia , Diálise Renal , Doenças Ósseas Metabólicas/etiologia , Estudos Transversais , Feminino , Humanos , Falência Renal Crônica/complicações , Falência Renal Crônica/terapia , Masculino , Pessoa de Meia-Idade , Isquemia Miocárdica/etiologia , Fatores de Risco
20.
J. bras. nefrol ; 38(3): 320-326, July-Sept. 2016. tab, graf
Artigo em Inglês | LILACS-Express | ID: lil-796204

RESUMO

Abstract Introduction: Bone metabolism disorder (BMD) and vascular dysfunction contribute to excess cardiovascular mortality observed in hemodialysis patients. Vascular dysfunction, a new marker of atherosclerosis, can play a role in this risk. Even though associated with higher mortality in the general population, such vascular evaluation in patients on hemodialysis has not been extensively studied. Methods: In this cross-sectional study, hemodialysis patients were submitted to flow-mediated dilation, subendocardial viability ratio (SEVR) and ejection duration index assessment, in order to estimate the impact of BMD markers on vascular dysfunction. Results: A matched cohort of patients with (n = 16) and without (n = 11) severe secondary hyperparathyroidism (SHPT) was studied. Additionally, time spent under severe SHPT was also evaluated. Patients with severe SHPT had lower SEVR and higher ejection duration index, indicating higher cardiovascular risk. Lower SEVR was also associated to diastolic blood pressure (r = 0.435, p = 0.049), serum 25-Vitamin-D levels (r = 0.479, p = 0.028) and to more time spent under severe secondary hyperparathyroidism (SHPT), defined as time from PTH > 500pg/ml until parathyroidectomy surgery or end of the study (r = -0.642, p = 0.027). In stepwise multiple regression analysis between SEVR and independent variables, lower SEVR was independently associated to lower serum 25-Vitamin-D levels (p = 0.005), female sex (p = 0.012) and more time spent under severe SHPT (p = 0.001) in a model adjusted for age, serum cholesterol, and blood pressure (adjusted r² = 0.545, p = 0.001). Conclusion: Subendocardial perfusion was lower in patients with BMD, reflecting higher cardiovascular risk in this population. Whether early parathyroidectomy in the course of kidney disease could modify such results still deserves further investigation.


Resumo Introdução: Distúrbios do metabolismo ósseo (DMO) e alterações da função vascular contribuem para a elevada mortalidade de pacientes em hemodiálise. A disfunção vascular, um novo marcador de aterosclerose, pode contribuir para este risco. Apesar de associada a aumento de mortalidade na população geral, a avaliação de tal disfunção ainda não foi realizada de modo amplo em pacientes em hemodiálise. Métodos: Neste estudo transversal, pacientes em hemodiálise foram submetidos à avaliação da vasodilatação mediada por fluxo, razão de viabilidade subendocárdica (RVSE) e índice de duração de ejeção, como estimativas de avaliação dos marcadores de DMO sobre disfunção vascular. Resultados: Uma coorte pareada com (n = 16) e sem (n = 11) hiperparatireoidismo secundário (HPTS) grave foi estudada. Adicionalmente, o tempo transcorrido do diagnóstico de HPTS grave também foi avaliado. Pacientes com HPTS grave apresentaram menores valores de RVSE e maiores valores de índice de duração de ejeção, apontando maior risco cardiovascular. Baixa RVSE também foi associada à pressão arterial diastólica (r = 0,435, p = 0,049), níveis séricos de 25-Vitamina D (r = 0,479, p = 0,028) e maior tempo transcorrido desde diagnóstico de HPTS grave, definido como tempo em que o paciente permaneceu com valores de paratormônio superiores a 500 pg/ml até realização de cirurgia de paratireoidectomia ou término do estudo (r = -0,642, p = 0,027). Em regressão logística stepwise entre RVSE e variáveis independentes, menor RVSE foi independentemente associado a menores valores de 25-Vitamina D (p = 0,005), sexo feminino (p = 0,012) e maior tempo transcorrido desde diagnóstico de HPTS grave (p = 0,001) em um modelo ajustado para idade, colesterol sérico e pressão arterial (r2 ajustado = 0,545, p = 0,001). Conclusão: A perfusão subendocárdica foi menor em pacientes com DMO, refletindo o maior risco cardiovascular nesta população. Investigações adicionais são necessárias para definir se a paratireoidectomia precoce no curso da doença renal crônica poderia interferir neste risco.

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