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1.
Int. j. cardiovasc. sci. (Impr.) ; 32(4): 343-354, July-Aug. 2019. tab
Article in English | LILACS | ID: biblio-1012341

ABSTRACT

Peak oxygen consumption (VO2peak) is an important prognostic marker and its classification helps the cardiologist in the therapeutic decision-making process. The most commonly used cardiorespiratory fitness (CRF) classification has not been validated for the Brazilian population. Objective: To elaborate a CRF classification using a Brazilian sample and to compare it with the American Heart Association (AHA), Cooper and UNIFESP classifications. Methods: A total of 6,568 healthy subjects were analyzed through cardiopulmonary exercise testing (CPET). They were distributed by sex and the following age groups (years): 7-12, 13-19, 20-79 (per decades) and > 80 years. After measurement of the VO2peak, participants were distributed into quintiles of CRF in very poor, poor, moderate, high and very high (AEMA Table). The CRF classifications by AEMA, AHA, Cooper, and UNIFESP were compared using the Wilcoxon, Kappa and concordance percentages. Results: VO2peak presented an inverse and moderate correlation with age considering both sexes (R = -0.488, p < 0.001). All paired comparisons between CRF classification systems showed differences (p < 0.001) and disagreement percentage - AEMA versus AHA (k = 0.291, 56.7%), AEMA versus Cooper (k = 0.220, 62.4%) and AEMA versus UNIFESP (k = 0.201, 63.9 %). Conclusion: The AEMA table showed important discrepancies in the classification of CRF when compared to other tables widely used in our setting. Because it was obtained from a large sample of the Brazilian population, the AEMA table should be preferred over other classification systems in our population


Subject(s)
Humans , Male , Female , Brazil , Sampling Studies , Cardiorespiratory Fitness , Oxygen Consumption , Echocardiography/methods , Cardiovascular Diseases/mortality , Exercise , Sex Factors , Age Factors , Electrocardiography/methods , Exercise Test/methods , Population Health
2.
Arq. bras. cardiol ; 103(4): 338-347, 10/2014. tab, graf
Article in English | LILACS | ID: lil-725320

ABSTRACT

Background: The importance of measuring blood pressure before morning micturition and in the afternoon, while working, is yet to be established in relation to the accuracy of home blood pressure monitoring (HBPM). Objective: To compare two HBPM protocols, considering 24-hour ambulatory blood pressure monitoring (wakefulness ABPM) as gold-standard and measurements taken before morning micturition (BM) and in the afternoon (AM), for the best diagnosis of systemic arterial hypertension (SAH), and their association with prognostic markers. Methods: After undergoing 24-hour wakefulness ABPM, 158 participants (84 women) were randomized for 3- or 5-day HBPM. Two variations of the 3-day protocol were considered: with measurements taken before morning micturition and in the afternoon (BM+AM); and with post-morning-micturition and evening measurements (PM+EM). All patients underwent echocardiography (for left ventricular hypertrophy - LVH) and urinary albumin measurement (for microalbuminuria - MAU). Result: Kappa statistic for the diagnosis of SAH between wakefulness-ABPM and standard 3-day HBPM, 3-day HBPM (BM+AM) and (PM+EM), and 5-day HBPM were 0.660, 0.638, 0.348 and 0.387, respectively. The values of sensitivity of (BM+AM) versus (PM+EM) were 82.6% × 71%, respectively, and of specificity, 84.8% × 74%, respectively. The positive and negative predictive values were 69.1% × 40% and 92.2% × 91.2%, respectively. The comparisons of intraclass correlations for the diagnosis of LVH and MAU between (BM+AM) and (PM+EM) were 0.782 × 0.474 and 0.511 × 0.276, respectively. Conclusions: The 3 day-HBPM protocol including measurements taken before morning micturition and during work in the afternoon showed the best agreement with SAH diagnosis and the best association with prognostic markers. .


Fundamentos: A importância das medidas da pressão arterial antes do ato miccional matinal e no período da tarde, durante atividades laborativas, na acurácia da monitoração residencial da pressão arterial (MRPA) não foi estabelecida. Objetivo: Comparar dois protocolos de MRPA, tendo como padrão-ouro a monitoração ambulatorial da pressão arterial de 24 horas (MAPA-vigília) e avaliando-se as medidas antes do ato miccional e à tarde, para o melhor diagnóstico de hipertensão arterial (HAS), e sua associação com marcadores prognósticos. Métodos: Após realizarem MAPA de 24 horas, os 158 participantes (84 mulheres) foram randomizados para realizar MRPA de três ou cinco dias com posterior crossover. Analisou-se o protocolo de três dias nas seguintes situações: aferições antes do ato miccional matinal e à tarde (AM+MT); e aferições após o ato miccional matinal e à noite (PM+MN). Todos os pacientes foram submetidos a ecocardiografia (hipertrofia ventricular esquerda - HVE) e a dosagem de albumina urinária (microalbuminúria - MAU). Resultados: A estatística kappa para diagnóstico de HAS entre MAPA-vigília e MRPA de três dias padrão, MRPA de três dias (AM + MT) e (PM + MN), e MRPA de cinco dias foi de 0,660, 0,638, 0,348 e 0,387, respectivamente. Os valores de sensibilidade de AM+MT versus PM+MN foram 82,6% × 71%, respectivamente, e os de especificidade foram 84,8% × 74%, respectivamente. Os valores preditivos positivos e negativos foram 69,1% × 40% e 92,2% × 91,2%, respectivamente. As comparações das correlações intraclasse para diagnósticos de HVE e MAU, entre AM+MT e PM+MN, foram 0,782 × 0,474 e 0,511 × 0,276, respectivamente. Conclusões: O protocolo de MRPA de três dias ...


Subject(s)
Adult , Female , Humans , Male , Middle Aged , Blood Pressure Monitoring, Ambulatory/methods , Hypertension/diagnosis , Urination , Analysis of Variance , Albuminuria/urine , Blood Pressure Monitoring, Ambulatory/standards , Cross-Sectional Studies , Hypertrophy, Left Ventricular , Predictive Value of Tests , Reference Standards , Reproducibility of Results , Time Factors
3.
Femina ; 34(11): 757-761, nov. 2006. ilus
Article in Portuguese | LILACS | ID: lil-452904

ABSTRACT

Desde sua utilização na prática clínica, a dopplervelocimetria tornou-se ferramenta imprescindível para o adequado acompanhamento pré-natal, principalmente na vigência de gestações de alto risco. Essa tecnologia permite que informações anatômicas e dinâmicas sejam obtidas em tempo real e com relativa facilidade, sendo possível estudar os principais territórios vasculares fetais, quais sejam, artéria cerebral média, aorta ascendente e descendente e artérias renais. Nesse contexto, justifica-se o presente estudo, que tem por objetivo realizar atualização sobre dopplervelocimetria de artérias renais, demonstrando sua aplicabilidade clínica


Subject(s)
Humans , Female , Pregnancy , Fetal Development , Fetal Viability , Laser-Doppler Flowmetry , Pregnancy, High-Risk , Renal Artery , Ultrasonography, Prenatal , Blood Flow Velocity
4.
Rev. Inst. Med. Trop. Säo Paulo ; 27(6): 341-5, nov.-dez 1985. ilus
Article in Portuguese | LILACS | ID: lil-28006

ABSTRACT

Apresentam-se dois casos de cardiopatia chagásica crônica na infância, procedentes da regiäo limítrofe entre os Estados de Säo Paulo e Minas Gerais. O objetivo é mostrar a possibilidade de contaminaçäo natural da doença na área rural da regiäo da qual as crianças säo provenientes, assim como contribuir no entendimento fisiopatológico da Doença de Chagas. Ambos os casos apresentaram insuficiência cardíaca refratária aos recursos terapêuticos atuais, evoluindo para o óbito. Säo feitos comentários gerais sobre a fisiopatologia da doença, com base na literatura pertinente


Subject(s)
Child , Humans , Male , Female , Chagas Cardiomyopathy/physiopathology , Heart Failure/physiopathology , Chagas Cardiomyopathy/diagnosis
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