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	Provedor de dados BJMBR (7) Autor Benchimol-Barbosa,P.R. (7) Barbosa,E.C. (2) Nadal,J. (2) Barbosa-Filho,J. (1) Bomfim,A.S. (1) Ginefra,P. (1) Hoirisch-Clapauch,S. (1) Kantharia,B.K. (1) Marocolo,M. (1) Tura,B.R. (1) Mais... Palavra-chave Cardiac death (2) Cardiomyopathy (2) Chagas' disease (2) Acanthosis nigricans (1) Atrial fibrillation (1) Autonomic nervous system (1) Chagas heart disease (1) Circadian rhythm (1) Digital filtering (1) Echocardiography (1) Electrocardiography (1) Embolic stroke (1) Health technology assessment (1) Heart rate variability (1) High resolution electrocardiogram (1) Human immunodeficiency virus infection (1) Long-distance runners (1) Long-term follow-up study (1) Mathematical model (1) Maximal aerobic power (1) Mais... Tipo do documento Info:eu-repo/semantics/article (7) Ano 2013 (1) 2011 (1) 2009 (2) 2007 (2) 2002 (1) País Brazil (7) Idioma Inglês (7)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 7 Primeira ... 1 ... Última Mechanical cardiac remodeling and new-onset atrial fibrillation in long-term follow-up of subjects with chronic Chagas' disease BJMBR Benchimol-Barbosa,P.R.; Barbosa-Filho,J.. Atrial fibrillation (AF) affects subjects with Chagas' disease and is an indicator of poor prognosis. We investigated clinical, echocardiographic and electrocardiographic variables of Chagas' disease in a long-term longitudinal study as predictors of a new-onset AF episode lasting >24 h, nonfatal embolic stroke and cardiac death. Fifty adult outpatients (34 to 74 years old, 62% females) staged according to the Los Andes classification were enrolled. During a follow-up of (mean ± SD) 84.2 ± 39.0 months, 9 subjects developed AF (incidence: 3.3 ± 1.0%/year), 5 had nonfatal stroke (incidence: 1.3 ± 1.0%/year), and nine died (mortality rate: 2.3 ± 0.8%/year). The progression rate of left ventricular mass and left ventricular ejection fraction was... Tipo: Info:eu-repo/semantics/article Palavras-chave: Chagas' disease; Cardiomyopathy; Atrial fibrillation; Cardiac death; Embolic stroke; Prognosis. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009000300006 Utility of a novel risk score for prediction of ventricular tachycardia and cardiac death in chronic Chagas disease - the SEARCH-RIO study BJMBR Benchimol-Barbosa,P.R.; Tura,B.R.; Barbosa,E.C.; Kantharia,B.K.. The SEARCH-RIO study prospectively investigated electrocardiogram (ECG)-derived variables in chronic Chagas disease (CCD) as predictors of cardiac death and new onset ventricular tachycardia (VT). Cardiac arrhythmia is a major cause of death in CCD, and electrical markers may play a significant role in risk stratification. One hundred clinically stable outpatients with CCD were enrolled in this study. They initially underwent a 12-lead resting ECG, signal-averaged ECG, and 24-h ambulatory ECG. Abnormal Q-waves, filtered QRS duration, intraventricular electrical transients (IVET), 24-h standard deviation of normal RR intervals (SDNN), and VT were assessed. Echocardiograms assessed left ventricular ejection fraction. Predictors of cardiac death and new onset... Tipo: Info:eu-repo/semantics/article Palavras-chave: Chagas heart disease; Noninvasive electrocardiography; Prognostic score; Cardiac death; Ventricular tachycardia. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2013001100974 The effect of an aerobic training program on the electrical remodeling of the heart: high-frequency components of the signal-averaged electrocardiogram are predictors of the maximal aerobic power BJMBR Marocolo,M.; Nadal,J.; Benchimol-Barbosa,P.R.. Increased heart rate variability (HRV) and high-frequency content of the terminal region of the ventricular activation of signal-averaged ECG (SAECG) have been reported in athletes. The present study investigates HRV and SAECG parameters as predictors of maximal aerobic power (VO2max) in athletes. HRV, SAECG and VO2max were determined in 18 high-performance long-distance (25 ± 6 years; 17 males) runners 24 h after a training session. Clinical visits, ECG and VO2max determination were scheduled for all athletes during thew training period. A group of 18 untrained healthy volunteers matched for age, gender, and body surface area was included as controls. SAECG was acquired in the resting supine position for 15 min and processed to extract average RR interval... Tipo: Info:eu-repo/semantics/article Palavras-chave: Long-distance runners; Signal-averaged electrocardiogram; Maximal aerobic power; Mathematical model. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000200006 Clinical assessment of the effect of digital filtering on the detection of ventricular late potentials BJMBR Benchimol-Barbosa,P.R.; Barbosa,E.C.; Bomfim,A.S.; Ginefra,P.; Nadal,J.. Ventricular late potentials are low-amplitude signals originating from damaged myocardium and detected on the body surface by ECG filtering and averaging. Digital filters present in commercial equipment may interfere with the ability of arrhythmia stratification. We compared 40-Hz BiSpec (BI) and classical 40- to 250-Hz band-pass Butterworth bidirectional (BD) filters in terms of impact on time domain variables and diagnostic properties. In a transverse retrospective age-adjusted case-control study, 221 subjects with sinus rhythm without bundle branch block were divided into three groups after signal-averaged ECG acquisition: GI (N = 40), clinically normal controls, GII (N = 158), subjects with coronary heart disease without sustained monomorphic... Tipo: Info:eu-repo/semantics/article Palavras-chave: High resolution electrocardiogram; Digital filtering; Health technology assessment. Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002001100005 Noninvasive prognostic markers for cardiac death and ventricular arrhythmia in long-term follow-up of subjects with chronic Chagas' disease BJMBR Benchimol-Barbosa,P.R.. The objective of the present study was to investigate clinical, echocardiographic and electrocardiographic (12-lead resting ECG, 24-h ambulatory ECG monitoring and signal-averaged ECG (SAECG)) parameters in subjects with chronic Chagas' disease in a long-term follow-up as prognostic markers for adverse outcomes. Fifty adult outpatients (34 to 74 years old, 31 females) staged according to Los Andes class I, II or III and complaining of palpitation were enrolled in a longitudinal study. SAECG was analyzed in time and frequency domains and the endpoint was a composite of cardiac death and ventricular tachycardia. During a follow-up of 84.2 ± 39.0 months, 34.0% of the patients developed adverse outcomes (9 cardiac deaths and 11 episodes of ventricular... Tipo: Info:eu-repo/semantics/article Palavras-chave: Chagas' disease; Cardiomyopathy; Noninvasive prognostic assessment; Long-term follow-up study; Echocardiography; Electrocardiography. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000200003 Markers of insulin resistance and sedentary lifestyle are predictors of preeclampsia in women with adverse obstetric results BJMBR Hoirisch-Clapauch,S.; Benchimol-Barbosa,P.R.. Some thrombophilias and severe preeclampsia may increase the risk for preterm deliveries and fetal death due to placental insufficiency. Our objective was to evaluate clinical and laboratory data as predictors of preeclampsia in a population of mothers with 3rd trimester fetal losses or preterm deliveries. In a longitudinal retrospective study, 54 consecutive women (age range: 16 to 39 years) with normotensive pregnancies were compared to 79 consecutive women with preeclampsia (age range: 16 to 43 years). Weight accrual rate (WAR) was arbitrarily defined as weight gain from age 18 years to the beginning of pregnancy divided by elapsed years. Independent predictors of preeclampsia were past history of oligomenorrhea, WAR &gt;0.8 kg/years, pre-pregnancy... Tipo: Info:eu-repo/semantics/article Palavras-chave: Preeclampsia; Acanthosis nigricans; Weight accrual rate; Triglycerides; Oligoamenorrhea. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011001200013 Circadian cardiac autonomic function in perinatally HIV-infected preschool children BJMBR Benchimol-Barbosa,P.R.. The 24-h heart rate variability and QT-interval adaptation was investigated in perinatally HIV-infected preschool children classified according to immunological status in order to assess autonomic function at early stages of infection. Thirty-five perinatally HIV-infected and clinically stable children (4.8 ± 0.3 years) were enrolled after approval of the study by the University Hospital Pedro Ernesto Ethics Committee and written informed parental consent was obtained. The children were classified according to peripheral CD4+ count (cells/µL) as follows: group 1, N = 11 (≥1000); group 2, N = 7 (≥500 and <1000); group 3, N = 17 (<500). Left ventricular ejection fraction (>55%), 24-h RR interval variability (RRV) indexes (NN, SDANN, SDNN index,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Autonomic nervous system; Circadian rhythm; Heart rate variability; Human immunodeficiency virus infection; Perinatally HIV-infected children. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009000800006 Registros recuperados: 7 Primeira ... 1 ... Última

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