Search Results - "Silva, Luiz Eduardo Virgilio"

The role of sympathetic and vagal cardiac control on complexity of heart rate dynamics by Silva, Luiz Eduardo Virgilio, Silva, Carlos Alberto Aguiar, Salgado, Helio Cesar, Fazan, Jr, Rubens

“…Analysis of heart rate variability (HRV) by nonlinear approaches has been gaining interest due to their ability to extract additional information from heart…”
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Comparison between spectral analysis and symbolic dynamics for heart rate variability analysis in the rat by Silva, Luiz Eduardo Virgilio, Geraldini, Victor Rezende, de Oliveira, Bianca Potratz, Silva, Carlos Alberto Aguiar, Porta, Alberto, Fazan, Rubens

“…Spectral analysis of heart rate (HR) has been widely used to assess the autonomic cardiovascular control. A nonlinear approach, known as symbolic analysis, has…”
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Multiscale entropy analysis of heart rate variability in heart failure, hypertensive, and sinoaortic-denervated rats: classical and refined approaches by Silva, Luiz Eduardo Virgilio, Lataro, Renata Maria, Castania, Jaci Airton, da Silva, Carlos Alberto Aguiar, Valencia, Jose Fernando, Murta, Jr, Luiz Otavio, Salgado, Helio Cesar, Fazan, Jr, Rubens, Porta, Alberto

“…The analysis of heart rate variability (HRV) by nonlinear methods has been gaining increasing interest due to their ability to quantify the complexity of…”
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Heart rate fragmentation, a novel approach in heart rate variability analysis, is altered in rats 4 and 12 weeks after myocardial infarction by Omoto, Ana Carolina M., Lataro, Renata M., Silva, Thais M., Salgado, Helio Cesar, Fazan, Rubens, Silva, Luiz Eduardo Virgílio

“…An approach recently proposed to assess ultra-rapid patterns of heart rate variability, namely heart rate fragmentation (HRF), is increased in aging and…”
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Revisiting the Sequence Method for Baroreflex Analysis by Silva, Luiz Eduardo Virgilio, Dias, Daniel Penteado Martins, da Silva, Carlos Alberto Aguiar, Salgado, Hélio Cesar, Fazan, Jr, Rubens

“…The sequence method is an important approach to assess the baroreflex function, mainly because it is based on the spontaneous fluctuations of beat-by-beat…”
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Heart rate variability as a biomarker in patients with Chronic Chagas Cardiomyopathy with or without concomitant digestive involvement and its relationship with the Rassi score by Silva, Luiz Eduardo Virgilio, Moreira, Henrique Turin, de Oliveira, Marina Madureira, Cintra, Lorena Sayore Suzumura, Salgado, Helio Cesar, Fazan, Rubens, Tinós, Renato, Rassi, Anis, Schmidt, André, Marin-Neto, J. Antônio

“…Dysautonomia plays an ancillary role in the pathogenesis of Chronic Chagas Cardiomyopathy (CCC), but is the key factor causing digestive organic involvement…”
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Multiscale entropy-based methods for heart rate variability complexity analysis by Silva, Luiz Eduardo Virgilio, Cabella, Brenno Caetano Troca, Neves, Ubiraci Pereira da Costa, Murta Junior, Luiz Otavio

“…Physiologic complexity is an important concept to characterize time series from biological systems, which associated to multiscale analysis can contribute to…”
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Cardiac autonomic modulation in non-frail, pre-frail and frail elderly women: a pilot study by Katayama, Pedro Lourenço, Dias, Daniel Penteado Martins, Silva, Luiz Eduardo Virgilio, Virtuoso-Junior, Jair Sindra, Marocolo, Moacir

“…Frailty has been defined as a geriatric syndrome that results in high vulnerability to health adverse outcomes. This increased vulnerability state results from…”
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A Pilot Study of the Reliability and Agreement of Heart Rate, Respiratory Rate and Short-Term Heart Rate Variability in Elite Modern Pentathlon Athletes by Hoffmann, Bartosz, Flatt, Andrew A, Silva, Luiz Eduardo Virgilio, Młyńczak, Marcel, Baranowski, Rafał, Dziedzic, Ewelina, Werner, Bożena, Gąsior, Jakub S

“…Research on reliability of heart rate variability (HRV) parameters in athletes has received increasing attention. The aims of this study were to examine the…”
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Changes in the Complexity of Heart Rate Variability with Exercise Training Measured by Multiscale Entropy-Based Measurements by Fazan, Frederico, Brognara, Fernanda, Fazan Junior, Rubens, Murta Junior, Luiz, Virgilio Silva, Luiz

“…Quantifying complexity from heart rate variability (HRV) series is a challenging task, and multiscale entropy (MSE), along with its variants, has been…”
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Multiscale Entropy Analysis of Short Signals: The Robustness of Fuzzy Entropy-Based Variants Compared to Full-Length Long Signals by Borin, Jr, Airton Monte Serrat, Humeau-Heurtier, Anne, Virgílio Silva, Luiz Eduardo, Murta, Jr, Luiz Otávio

“…Multiscale entropy (MSE) analysis is a fundamental approach to access the complexity of a time series by estimating its information creation over a range of…”
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PyBioS: A freeware computer software for analysis of cardiovascular signals by Silva, Luiz Eduardo Virgilio, Fazan, Rubens, Marin-Neto, Jose Antonio

“…•A new freeware software for cardiovascular signal analysis is introduced (PyBioS).•PyBioS allows signal importing, as wells as the creation of simulated…”
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Mesenchymal Stem Cells Improve Heart Rate Variability and Baroreflex Sensitivity in Rats with Chronic Heart Failure by de Morais, Sharon Del Bem Velloso, da Silva, Luiz Eduardo Virgilio, Lataro, Renata Maria, Silva, Carlos Alberto Aguiar, de Oliveira, Luciano Fonseca Lemos, de Carvalho, Eduardo Elias Vieira, Simões, Marcus Vinicius, da Silva Meirelles, Lindolfo, Fazan, Jr, Rubens, Salgado, Helio Cesar

“…Heart failure induced by myocardial infarct (MI) attenuates the heart rate variability (HRV) and baroreflex sensitivity, which are important risk factors for…”
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Electrical stimulation of the carotid sinus lowers arterial pressure and improves heart rate variability in L-NAME hypertensive conscious rats by Domingos-Souza, Gean, Santos-Almeida, Fernanda Machado, Meschiari, César Arruda, Ferreira, Nathanne S, Pereira, Camila A, Martinez, Diana, Dias, Daniel Penteado Martins, Silva, Luiz Eduardo Virgílio, Castania, Jaci Airton, Tostes, Rita C, Fazan, Jr, Rubens

“…We evaluated the effects of long-term (48 h) electrical stimulation of the carotid sinus (CS) in hypertensive rats. L-NAME-treated (10 days) Wistar rats were…”
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The impact of artifact correction methods of RR series on heart rate variability parameters by Rincon Soler, Anderson Ivan, Silva, Luiz Eduardo Virgilio, Fazan, Jr, Rubens, Murta Junior, Luiz Otavio

“…Heart rate variability (HRV) analysis is widely used to investigate the autonomic regulation of the cardiovascular system. HRV is often analyzed using RR time…”
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Baroreflex‐mediated sympathetic overactivation induced by mental stress in post‐traumatic stress disorder depends on the type of stressor by Silva, Luiz Eduardo Virgilio, Katayama, Pedro Lourenço

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Mean Heart Rate Level Does Not Affect All Heart Rate Variability Indices by Silva, Luiz Eduardo Virgilio, Salgado, Helio Cesar, Fazan, Rubens

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Nonlinearities of heart rate variability in animal models of impaired cardiac control: contribution of different time scales by Silva, Luiz Eduardo Virgilio, Lataro, Renata Maria, Castania, Jaci Airton, Silva, Carlos Alberto Aguiar, Salgado, Helio Cesar, Fazan, Jr, Rubens, Porta, Alberto

“…Heart rate variability (HRV) has been extensively explored by traditional linear approaches (e.g., spectral analysis); however, several studies have pointed to…”
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Baroreflex control of renal sympathetic nerve activity in early heart failure assessed by the sequence method by Lataro, Renata Maria, Silva, Luiz Eduardo Virgilio, Silva, Carlos Alberto Aguiar, Salgado, Helio Cesar, Fazan, Rubens

“…Key points The integrity of the baroreflex control of sympathetic activity in heart failure (HF) remains under debate. We proposed the use of the sequence…”
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Two-dimensional dispersion entropy: An information-theoretic method for irregularity analysis of images by Azami, Hamed, da Silva, Luiz Eduardo Virgilio, Omoto, Ana Carolina Mieko, Humeau-Heurtier, Anne

“…Two-dimensional sample entropy (SampEn2D) is a recently developed method in the field of information theory for evaluating the regularity or predictability of…”
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