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1.
Arq. bras. cardiol ; 117(3): 544-553, Sept. 2021. tab, graf
Article in English, Portuguese | LILACS | ID: biblio-1339198

ABSTRACT

Resumo Aproximadamente 300 milhões de cirurgias não cardíacas são realizadas anualmente no mundo, e eventos cardiovasculares adversos são as principais causas de morbimortalidade no período perioperatório e pós-operatório. A lesão miocárdica após cirurgia não cardíaca (MINS, do inglês myocardial injury after non-cardiac surgery) é uma nova entidade clínica associada com desfechos cardiovasculares adversos. MINS é definida como uma lesão miocárdica que pode resultar em necrose secundária à isquemia, com elevação dos biomarcadores. A lesão tem importância prognóstica e ocorre em até 30 dias após a cirurgia não cardíaca. Os critérios diagnósticos para MINS são: níveis elevados de troponina durante ou em até 30 dias após a cirurgia não cardíaca, sem evidência de etiologia não isquêmica, sem que haja necessariamente sintomas isquêmicos ou achados eletrocardiográficos de isquemia. Recentemente, pacientes com maior risco para MINS têm sido identificados por variáveis clínicas e biomarcadores, bem como por protocolos de vigilância quanto ao monitoramento eletrocardiográfico e dosagem de troponina cardíaca. Pacientes idosos com doença aterosclerótica prévia necessitam medir troponina diariamente no período pós-operatório. O objetivo deste trabalho é descrever este novo problema de saúde pública, seu impacto clínico e a abordagem terapêutica contemporânea.


Abstract Approximately 300 million non-cardiac surgeries are performed annually worldwide and adverse cardiovascular events are the main cause of morbidity and mortality in the peri- and postoperative period. Myocardial injury after non-cardiac surgery (MINS) is a new clinical entity associated with adverse cardiovascular outcomes. MINS is defined as myocardial injury that can result in necrosis due to ischemia, marked by increase in biomarker levels. It has prognostic relevance and occurs within up to 30 days after non-cardiac surgery. The diagnostic criteria for MINS are an elevated postoperative measure of troponin judged as secondary to myocardial ischemia, i.e., with no evidence of a non-ischemic etiology, during or within 30 days after non-cardiac surgery, and without the requirement of an ischemic symptom or electrocardiographic finding of ischemia. Recently, patients at higher risk for MINS have been recognized using clinical variables and biomarkers and established protocols for greater surveillance in relation to electrocardiographic monitoring and cardiac troponin dosage. Elderly patients with previous atherosclerotic disease need to measure troponin daily in the postoperative period. The aim of the present work is to describe this new public health problem, its clinical impact and contemporary therapeutic approach.


Subject(s)
Humans , Aged , Myocardial Ischemia/etiology , Heart Injuries , Postoperative Complications/etiology , Postoperative Period , Troponin
2.
Arq. bras. cardiol ; 117(2): 300-306, ago. 2021. tab, graf
Article in Portuguese | LILACS | ID: biblio-1339168

ABSTRACT

Resumo Fundamento: A classificação da insuficiência cardíaca (IC) por fenótipos possui grande relevância na prática clínica. Objetivo: O estudo visou analisar a prevalência, as características clínicas e os desfechos entre os fenótipos de IC no contexto da atenção primária. Métodos: Trata-se de uma análise de um estudo de coorte que incluiu 560 indivíduos, com idade ≥ 45 anos, que foram selecionados aleatoriamente em um programa de atenção primária. Todos os participantes foram submetidos a avaliações clínicas, dosagem do peptídeo natriurético tipo B (BNP), eletrocardiograma e ecocardiografia em um único dia. A IC com fração de ejeção do ventrículo esquerdo (FEVE) < 40% foi classificado como IC com fração de ejeção reduzida (ICFEr), FEVE de 40% a 49% como IC com fração de ejeção intermediária (ICFEi) e FEVE ≥ 50% como IC com fração de ejeção preservada (ICFEp). Após 5 anos, os pacientes foram reavaliados quanto à ocorrência do desfecho composto de óbito por qualquer causa ou internação por doença cardiovascular. Resultados: Dos 560 pacientes incluídos, 51 pacientes tinham IC (9,1%), 11 dos quais tinham ICFEr (21,6%), 10 tinham ICFEi (19,6%) e 30 tinham ICFEp (58,8%). A ICFEi foi semelhante à ICFEp nos níveis de BNP (p < 0,001), índice de massa do ventrículo esquerdo (p = 0,037) e índice de volume do átrio esquerdo (p < 0,001). O fenótipo de ICFEi foi semelhante ao de ICFEr em relação à doença arterial coronariana (p = 0,009). Após 5 anos, os pacientes com ICFEi apresentaram melhor prognóstico quando comparados aos pacientes com ICFEp e ICFEr (p < 0,001). Conclusão: A prevalência de ICFEI foi semelhante ao observado em estudos anteriores. A ICFEI apresentou características semelhantes a ICFEP neste estudo. Nossos dados mostram que a ICFEi teve melhor prognóstico em comparação com os outros dois fenótipos.


Abstract Background: The classification of heart failure (HF) by phenotypes has a great relevance in clinical practice. Objective: The study aimed to analyze the prevalence, clinical characteristics, and outcomes between HF phenotypes in the primary care setting. Methods: This is an analysis of a cohort study including 560 individuals, aged ≥ 45 years, who were randomly selected in a primary care program. All participants underwent clinical evaluations, b-type natriuretic peptide (BNP) measurements, electrocardiogram, and echocardiography in a single day. HF with left ventricular ejection fraction (LVEF) < 40% was classified as HF with reduced ejection fraction (HFrEF), LVEF 40% to 49% as HF with mid-range ejection fraction (HFmrEF) and LVEF ≥ 50% as HF with preserved ejection fraction (HFpEF). After 5 years, the patients were reassessed as to the occurrence of the composite outcome of death from any cause or hospitalization for cardiovascular disease. Results: Of the 560 patients included, 51 patients had HF (9.1%), 11 of whom had HFrEF (21.6%), 10 had HFmrEF (19.6%) and 30 had HFpEF (58.8%). HFmrEF was similar to HFpEF in BNP levels (p < 0.001), left ventricular mass index (p = 0.037), and left atrial volume index (p < 0.001). The HFmrEF phenotype was similar to HFrEF regarding coronary artery disease (p = 0.009). After 5 years, patients with HFmrEF had a better prognosis when compared to patients with HFpEF and HFrEF (p < 0.001). Conclusion: The prevalence of ICFEI was similar to that observed in previous studies. ICFEI presented characteristics similar to ICFEP in this study. Our data show that ICFEi had a better prognosis compared to the other two phenotypes.


Subject(s)
Humans , Heart Failure , Phenotype , Primary Health Care , Prognosis , Stroke Volume , Cohort Studies , Ventricular Function, Left
3.
Int. j. cardiovasc. sci. (Impr.) ; 33(6): 666-672, Nov.-Dec. 2020. tab, graf
Article in English | LILACS | ID: biblio-1143118

ABSTRACT

Abstract Background: Primary care physicians have difficulty dealing with patients who have HF with preserved LVEF(HFpEF). The prognosis of HFpEF is poor, and difficult to predict on primary care. Objective: The aim of the study is to apply the H2FPEF score to primary care patients and verify its power to assess the risk of death or hospitalization due to cardiovascular disease. Methods: This longitudinal study included 402 individuals, with signs or symptoms of HF, aged≥45 years and, underwent an evaluation which included clinical examination, BNP and echocardiogram. The diagnosis of HFpEF was confirmed by the criteria of the European Society of Cardiology. After five years, the patients were reassessed as to the occurrence of the composite outcome, death from any cause or hospitalization for cardiovascular disease. H2FPEF used six variables: body mass index, medications for hypertension, age, pulmonary artery systolic pressure, atrial fibrillation and E/e' ratio ranged from 0 to 9 points. The level of statistical significance was p<0.05. Results: HFpEF was diagnosed in 58(14.4%). Among patients with H2FPEF≥4, 30% had HFpEF and in those with a score≤4, HFpEF was present in 12%. Patients with HFpEF and H2FPEF≥4 had 53% of outcomes, whereas patients with HFpEF and a score ≤4 had a 21% of outcomes. BNP values were higher in patients with HFpEF compared to those without HFpEF(p<0.0001). Conclusion: H2FPEF≥4 indicated a worse prognosis in patients with HFpEF assisted in primary care. H2FPEF may be a simple and useful tool for risk stratification in patients with HFpEF at the primary care.


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Primary Health Care , Heart Failure, Diastolic/diagnosis , Prognosis , Longitudinal Studies , Risk Assessment , Heart Failure, Diastolic/complications , Heart Failure, Diastolic/mortality
5.
Arq. bras. cardiol ; 115(1): 127-133, jul. 2020. tab, graf
Article in English, Portuguese | LILACS, SES-SP | ID: biblio-1131249

ABSTRACT

Resumo A indefinição de critérios diagnósticos para síndrome cardiorrenal aguda (SCRA) impacta em diferentes resultados prognósticos. Objetivou-se avaliar os critérios diagnósticos da SCRA e o impacto no prognóstico. Procedeu-se à revisão sistemática utilizando-se a metodologia PRISMA e os critérios PICO nas bases MEDLINE, EMBASE e LILACS. A pesquisa incluiu artigos originais do tipo ensaio clínico, coorte, caso-controle e meta-análises publicados no período de janeiro de 1998 até junho de 2018. Não foi encontrada na literatura nem nas diretrizes de insuficiência cardíaca uma definição clara dos critérios diagnósticos da SCRA. O critério diagnóstico mais comumente utilizado é o aumento da creatinina sérica de pelo menos 0,3 mg/dl em relação à basal. Entretanto, existem controvérsias na definição de creatinina basal e de qual deveria ser a creatinina sérica de referência dos pacientes críticos. Esta revisão sistemática sugere que os critérios de SCRA devem ser revistos para que se inclua o diagnóstico de SCRA na admissão hospitalar. A creatinina sérica de referência deve refletir a função renal basal antes do início da injúria renal aguda.


Abstract The absence of a consensus about the diagnostic criteria for acute cardiorenal syndrome (ACRS) affects its prognosis. This study aimed at assessing the diagnostic criteria for ACRS and their impact on prognosis. A systematic review was conducted using PRISMA methodology and PICO criteria in the MEDLINE, EMBASE and LILACS databases. The search included original publications, such as clinical trials, cohort studies, case-control studies, and meta-analyses, issued from January 1998 to June 2018. Neither literature nor heart failure guidelines provided a clear definition of the diagnostic criteria for ACRS. The serum creatinine increase by at least 0.3 mg/dL from baseline creatinine is the most used diagnostic criterion. However, the definition of baseline creatinine, as well as which serum creatinine should be used as reference for critical patients, is still controversial. This systematic review suggests that ACRS criteria should be revised to include the diagnosis of ACRS on hospital admission. Reference serum creatinine should reflect baseline renal function before the beginning of acute kidney injury.


Subject(s)
Humans , Acute Kidney Injury/diagnosis , Cardio-Renal Syndrome/diagnosis , Heart Failure/diagnosis , Prognosis , Creatinine
7.
Arq. bras. cardiol ; 114(2): 199-206, Feb. 2020. tab, graf
Article in English | LILACS | ID: biblio-1088856

ABSTRACT

Abstract Background: In many cities around the world, the mortality rate from cancer (CA) has exceeded that from disease of the circulatory system (DCS). Objectives: To compare the mortality curves from DCS and CA in the most populous capital cities of the five regions of Brazil. Methods: Data of mortality rates from DCS and CA between 2000 and 2015 were collected from the Mortality Information System of Manaus, Salvador, Goiania, Sao Paulo and Curitiba, and categorized by age range into early (30-69 years) and late (≥ 70 years), and by gender of the individuals. Chapters II and IX of the International Classification of Diseases-10 were used for the analysis of causes of deaths. The Joinpoint regression model was used to assess the tendency of the estimated annual percentage change of mortality rate, and the Monte Carlo permutation test was used to detect when changes occurred. Statistical significance was set at 5%. Results: There was a consistent decrease in early and late mortality from DCS in both genders in the cities studied, except for late mortality in men in Manaus. There was a tendency of decrease of mortality rates from CA in São Paulo and Curitiba, and of increase in the rates from CA in Goiania. In Salvador, there was a decrease in early mortality from CA in men and women and an increase in late mortality in both genders. Conclusion: There was a progressive and marked decrease in the mortality rate from DCS and a maintenance or slight increase in CA mortality in the five capital cities studied. These phenomena may lead to the intersection of the curves, with predominance of mortality from CA (old and new cases).


Resumo Fundamento: Em muitas cidades no mundo, a taxa de mortalidade por câncer (CA) ultrapassou aquela por doenças do aparelho circulatório (DAC). Objetivos: Comparar as curvas de mortalidade por DAC e CA nas capitais mais populosas das cinco regiões brasileiras. Métodos: Dados de mortalidade por DAC e CA entre 2000 e 2015 foram coletadas no Sistema de Informações sobre Mortalidade das capitais mais populosas das cinco regiões do Brasil: Manaus, Salvador, Goiânia, São Paulo e Curitiba. Os dados foram categorizados por faixas etárias dos indivíduos em precoce (30-69 anos) e tardia (≥70 anos), e por gênero. Foram considerados os capítulos II e IX da Classificação Internacional de Doenças-10 para análise das causas de óbito. A tendência na estimativa de mudança percentual foi calculada pelo modelo de regressão Joinpoint 4.6.0.0. e a detecção das mudanças das taxas pelo teste de permutação Monte Carlo. Nível de significância estatística de 5%. Resultados: Observou-se queda consistente das mortalidades precoce e tardia por DAC, em ambos os gêneros, nas capitais estudadas, com exceção da mortalidade tardia em homens em Manaus. Houve tendência de queda das taxas de mortalidade por CA em São Paulo e Curitiba, e de aumento da taxa de mortalidade por CA em Goiânia. Em Salvador, houve queda na mortalidade precoce por CA em homens e mulheres e incremento na mortalidade tardia em ambos os gêneros. Conclusão: Houve queda progressiva e expressiva da taxa de mortalidade por DAC nas cinco capitais em oposição à manutenção ou discreta elevação da mortalidade por CA. Tais fenômenos concorrem para o cruzamento das curvas com predomínio da mortalidade por CA (já ocorrido ou casos novos).


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Cardiovascular Diseases/mortality , Mortality/trends , Neoplasms/mortality , Time Factors , Brazil/epidemiology , Sex Factors , Monte Carlo Method , Cause of Death/trends , Age Factors , Cities/epidemiology , Sex Distribution , Age Distribution
9.
Arq. bras. cardiol ; 114(1): 59-65, Jan. 2020. tab, graf
Article in English | LILACS | ID: biblio-1055104

ABSTRACT

Abstract Background: Left ventricular remodeling (LVR) is related to both non-fatal and fatal outcomes. Objective: To describe the geometric patterns of the LV and their associations. Methods: A total of 636 individuals between the ages of 45 and 99 years in Rio de Janeiro, Brazil, were submitted to clinical evaluation, laboratory tests, electrocardiogram, and tissue Doppler echocardiography (TDE). The difference between categories was tested with Kruskall-Wallis with post hoc tests, once all variables studied are non-normally distributed and Pearson's Qui-square (categorical variables). Gross and adjusted ORs were estimated by logistic regression. The level of significance was 5% for all tests. Subjects had LVR characterized as: normal geometry (NG), concentric remodeling (CR), concentric hypertrophy (CH), and eccentric hypertrophy (EH). Results: The prevalence of altered patterns was 33%. Subjects presented NG (n = 423; 67%); EH (n = 186; 29%); CH (n = 14; 2%); and CR (n = 13; 2%). The variables of gender, age, level of education and albumin/creatinine ratio (A/C), showed a relationship with the chance of EH even after adjustment. Conclusion: Approximately one third of the studied individuals had LVR and were at risk for developing heart failure. Altered A/C in urine was associated with EH, indicating an early relationship between cardiac and renal dysfunction.


Resumo Fundamento: O remodelamento ventricular esquerdo (RVE) está relacionado a desfechos não fatais e fatais. Objetivo: Descrever os padrões geométricos do VE e suas associações. Métodos: Um total de 636 indivíduos entre 45 e 99 anos no Rio de Janeiro, Brasil, foi submetido a avaliação clínica, exames laboratoriais, eletrocardiograma e ecocardiograma com Doppler tecidual (EDT). A diferença entre as categorias foi testada com Kruskall-Wallis com testes post hoc, uma vez que todas as variáveis estudadas não são normalmente distribuídas e o qui-quadrado de Pearson (variáveis categóricas). As ORs brutas e ajustadas foram estimadas por regressão logística. O nível de significância foi de 5% para todos os testes. Os indivíduos tinham RVE caracterizada como: geometria normal (GN), remodelamento concêntrico (RC), hipertrofia concêntrica (HC) e hipertrofia excêntrica (HE). Resultados: A prevalência de padrões alterados foi de 33%. Os sujeitos apresentaram GN (n = 423; 67%); HE (n = 186; 29%); HC (n = 14; 2%); e RC (n = 13; 2%). As variáveis sexo, idade, escolaridade e razão albumina/creatinina (A/C) mostraram relação com a chance de HE, mesmo após o ajuste. Conclusão: Aproximadamente um terço dos indivíduos estudados apresentavam RVE e corriam risco de desenvolver insuficiência cardíaca. A/C alterada na urina foi associada à HE, indicando uma relação precoce entre disfunção cardíaca e renal.


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Aged, 80 and over , Ventricular Remodeling/physiology , Heart Failure/physiopathology , Primary Health Care , Socioeconomic Factors , Echocardiography , Prevalence , Risk Factors
10.
Int. j. cardiovasc. sci. (Impr.) ; 32(5): 508-516, Sept-Oct. 2019. tab, ilus
Article in English | LILACS | ID: biblio-1040105

ABSTRACT

The study is based on the fact that left atrial (LA) volume measurement is a marker of the presence of diastolic dysfunction and that Vitamin D deficiency may be associated with ventricular remodeling, worsening of left ventricular (LV) diastolic and systolic function, and activation of the renin-angiotensin-aldosterone system. Objective: To evaluate whether LAV changes are related to vitamin D deficiency. Method: A cross-sectional, population-based, unicentric study in which 640 patients over 45 years of age enrolled in the Niterói's Médico de Família program, RJ, were evaluated. Patients were submitted to tissue Doppler echocardiography to evaluate the parameters of diastolic and systolic function and vitamin D dosage. The presence or absence of hypovitaminosis D associated with structural and functional cardiac changes was compared between each group. A p < 0.05 value was considered as an indicator of statistical significance. Results: Of the 640 individuals analyzed, hypovitaminosis D was confirmed in 39.2% of the patients, of whom 34.8% had diastolic dysfunction. The most relevant echocardiographic parameters that were statistically significant were non-indexed AEDs and LAV, E'/A' and E wave deceleration time, which were associated with the presence of hypovitaminosis D (P < 0.01). Conclusion: The study of the association of hypovitaminosis D and the appearance of structural and functional cardiac abnormalities may contribute to the discussion of the adoption of one more criterion to select individuals at risk of developing clinical cardiac insufficiency in primary care since, with the use of echocardiography, the subclinical condition of cardiac involvement, with prognostic and treatment implications for the referred patients with hypovitaminosis D, can be identified early


Subject(s)
Humans , Male , Female , Middle Aged , Primary Health Care/methods , Vitamin D , Atrial Function, Left , Heart Atria , Avitaminosis/complications , Vitamin D Deficiency/complications , Blood Pressure , Echocardiography/methods , Cross-Sectional Studies , Data Interpretation, Statistical , Heart Failure , Heart Rate
14.
Int. j. cardiovasc. sci. (Impr.) ; 31(6): 643-651, nov.- dez. 2018. ilus, graf
Article in English | LILACS | ID: biblio-979982

ABSTRACT

Sepsis remains the leading cause of mortality and critical illness worldwide. Myocardial dysfunction is one of the most clinically relevant manifestations of sepsis and results from a complex interaction among genetic, molecular, metabolic, and structural changes. Despite the prominence given to the occurrence of systolic dysfunction during sepsis, the association between diastolic dysfunction and mortality is controversial, while diastolic dysfunction and right ventricular dysfunction are identified as independent predictors of mortality in the most recent studies. Elevation of biomarkers during sepsis may result from several mechanisms, and although the role of the B-type natriuretic peptide (BNP) and the N-terminal portion of its prohormone (NT-proBNP) as independent predictors of mortality is well defined, the same cannot be said about cardiac troponins due to conflicting results among currently available studies. The objective of the present review is to discuss the pathophysiological mechanisms of myocardial dysfunction induced by sepsis in adults and the role of echocardiography and cardiac biomarkers as tools for prognostic evaluation in this clinical setting


Subject(s)
Humans , Male , Female , Adult , Echocardiography/methods , Biomarkers , Sepsis/mortality , Prognosis , Calcium Channels , Cardiovascular Diseases/physiopathology , Risk Factors , Ventricular Dysfunction, Right/mortality , Ventricular Dysfunction, Left/mortality , Adult
15.
Arq. bras. cardiol ; 111(2): 205-212, Aug. 2018. tab, graf
Article in English | LILACS | ID: biblio-950222

ABSTRACT

Abstract Breast cancer is the most frequently diagnosed tumor in women worldwide, with a significant impact on morbidity and mortality. Chemotherapy and hormone therapy have significantly reduced mortality; however, the adverse effects are significant. Aspirin has been incorporated into clinical practice for over 100 years at a low cost, making it particularly attractive as a potential agent in breast cancer prevention and as an adjunct treatment to endocrine therapy in the prophylaxis of cardiovascular complications. The objective of this study was to evaluate the role of aspirin in reducing the incidence of breast cancer and to evaluate the impact of its use on morbidity and mortality and reduction of cardiovascular events as adjuvant therapy during breast cancer treatment with selective estrogen receptor modulators. A systematic review was performed using the PRISMA methodology and PICO criteria, based on the MEDLINE, EMBASE and LILACS databases. The original articles of clinical trials, cohort, case-control studies and meta-analyses published from January 1998 to June 2017, were considered. Most studies showed an association between the use of selective estrogen receptor modulators and the increase in thromboembolic events. The studies suggest a protective effect of aspirin for cardiovascular events during its concomitant use with selective estrogen receptor modulators and in the prevention of breast cancer. This systematic review suggests that aspirin therapy combines the benefit of protection against cardiovascular events with the potential reduction in breast cancer risk, and that the evaluation of the benefits of the interaction of endocrine therapy with aspirin should be further investigated.


Resumo O câncer de mama é o tumor mais frequentemente diagnosticado em mulheres de todo o mundo, com impacto importante na morbimortalidade. A quimioterapia e a terapia hormonal reduziram significativamente a mortalidade, mas os efeitos adversos são consideráveis. A aspirina está incorporada à prática clínica há mais de 100 anos, com baixo custo, tornando-a particularmente atraente como potencial agente na prevenção do câncer de mama e auxiliar durante o tratamento endócrino, na profilaxia de complicações cardiovasculares. Objetivou-se avaliar o papel da aspirina na redução da incidência do câncer de mama e avaliar o impacto de seu uso na morbimortalidade e na redução de eventos cardiovasculares como terapia adjuvante durante o tratamento do câncer de mama com moduladores seletivos do receptor do estrogênio. Procedeu-se à revisão sistemática utilizando-se a metodologia PRISMA e os critérios PICO, nas bases MEDLINE, EMBASE e LILACS. Foram considerados os artigos originais do tipo ensaio clínico, coorte, caso-controle e metanálises, publicados no período de janeiro de 1998 até junho de 2017. Na maioria dos estudos, houve relação entre o uso dos moduladores seletivos do receptor do estrogênio e o aumento de eventos tromboembólicos. Os estudos sugerem efeito protetor da aspirina para eventos cardiovasculares em uso concomitante aos moduladores seletivos do receptor do estrogênio e na prevenção do câncer de mama. Esta revisão sistemática sugere que o tratamento com aspirina combina o benefício da proteção contra eventos cardiovasculares com a potencial redução do risco de câncer de mama, e que a avaliação dos benefícios da interação da terapia endócrina com a aspirina deve ser melhor investigada.


Subject(s)
Humans , Female , Breast Neoplasms/drug therapy , Platelet Aggregation Inhibitors/administration & dosage , Aspirin/administration & dosage , Antineoplastic Agents, Hormonal/administration & dosage , Evidence-Based Medicine
17.
Int. j. cardiovasc. sci. (Impr.) ; 31(4): 422-432, jul.-ago. 2018. ilus, tab
Article in Portuguese | LILACS | ID: biblio-910647

ABSTRACT

A vitamina D é considerada um hormônio esteroide com amplo espectro de atuação no organismo humano. Sua ação ocorre a partir da ligação do seu metabólito ativo (1α, 25-di-hidroxivitamina D) com seu receptor (VDR) que se encontra presente em todo o organismo, inclusive nas células musculares lisas vasculares e nos cardiomiócitos. Inicialmente, a deficiência de vitamina D havia sido relacionada apenas com alterações no sistema musculoesquelético. Porém, nos últimos anos, pesquisadores têm demonstrado sua relação com diversas patologias pertencentes a outros sistemas, tais como as doenças cardiovasculares. O objetivo deste trabalho foi revisar a fisiopatologia da vitamina D, descrever sua relação com as doenças cardiovasculares com base nas publicações mais recentes e destacar os resultados da suplementação vitamínica na prevenção de tais patologias


Subject(s)
Humans , Male , Female , Vitamin D , Vitamin D Deficiency/physiopathology , Cardiovascular Diseases/prevention & control , Avitaminosis , Tobacco Use Disorder , Obesity, Morbid , Body Mass Index , Ergocalciferols , Prevalence , Multivariate Analysis , Risk Factors , Cholecalciferol , Dietary Supplements , Diabetes Mellitus , Heart Failure , Hypertension
20.
J. bras. nefrol ; 39(3): 246-252, July-Sept. 2017. tab
Article in English | LILACS | ID: biblio-893770

ABSTRACT

Abstract Introduction: Cardiovascular disease (CVD) is especially prevalent in patients with chronic kidney disease (CKD). Objective: To evaluate the role of CKD and metabolic syndrome (MS), which is a cluster of risk factors for CVD, as predictors of CVD. Methods: Observational, cross-sectional study with a random sample aged 45 or more years extracted from the population assisted by the primary care program in Niterói city in the state of Rio de Janeiro, Brazil. CKD was diagnosed by the K/DOQI guidelines and MS, by the harmonized criteria. CVD was said to be present if the participant had one or more of the following findings: echocardiographic abnormalities, and history of myocardial infarction, stroke or heart failure. A logistic regression model was developed to analyze risk factors for CVD using CKD as the variable of primary interest. Results: Fifty hundred and eighty-one participants (38.2% male) with a mean age of 59.4 ± 10.2 years were analyzed. The prevalence rate of CKD was 27.9%. In participants without CKD, MS was associated with a slight but statistically significant increase in the risk for CVD (OR = 1.52, p = 0.037); in those with CKD but without MS the risk for CVD was also statistically significant and at a greater magnitude (OR = 2.42, p = 0.003); when both were present the risk for CVD was substantially higher (OR = 5.13, p < 0.001). Conclusion: In this study involving a population assisted by a primary care program, CKD was confirmed as an independent risk factor for CVD. The presence of MS concurrent with CKD substantially amplified the risk for CVD.


Resumo Introdução: A doença cardiovascular (DCV) é especialmente prevalente em pacientes com doença renal crônica (DRC). Objetivo: Avaliar o papel da DRC e da síndrome metabólica (SM), que é um conjunto de fatores de risco para DCV, como previsores de DCV. Métodos: Estudo observacional, transversal, com uma amostra representativa da população assistida pelo programa de atenção primária em Niterói, RJ, Brasil, incluindo pacientes com idade igual ou maior do que 45 anos. A DRC foi diagnosticada segundo o K/DOQI e a SM, pelo critério harmonizado. A DCV foi dita estar presente diante de um ou mais dos seguintes achados: anormalidades ecocardiográficas ou história de infarto do miocárdio, acidente vascular cerebral ou insuficiência cardíaca. Um modelo de regressão logística foi desenvolvido para analisar os fatores de risco cardiovasculares usando a DRC como a variável de interesse primário. Resultados: Foram analisados 581 participantes (38,2% homens), com idade média de 59,4 ± 10,2 anos. A taxa de prevalência da DRC foi de 27,9%. Em participantes sem DRC, a SM foi associada com um ligeiro, mas estatisticamente significativo aumento no risco cardiovascular (OR = 1,52, p = 0,04); naqueles com DRC, mas sem SM, o risco para DCV também foi estatisticamente significativo e com maior magnitude (OR = 2,42, p = 0,003); quando ambos estavam presentes, o risco para DCV foi substancialmente mais elevado (OR = 5,13, p < 0,001). Conclusão: Neste estudo, envolvendo uma população assistida por um programa de atenção primária, a DRC foi confirmada como um fator de risco independente para DCV. A presença da SM concomitante com a DRC ampliou substancialmente esse risco.


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Cardiovascular Diseases/etiology , Cardiovascular Diseases/epidemiology , Metabolic Syndrome/complications , Renal Insufficiency, Chronic/complications , Primary Health Care , Cross-Sectional Studies , Risk Factors
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