Controle autonômico da frequência cardíaca de pacientes com doenças cardiorrespiratórias crônicas e indivíduos saudáveis em repouso e durante a manobra de acentuação da arritmia sinusal respiratória

Reis, Michel Silva; Deus, Ana Paula de; Simões, Rodrigo Polaquini; Aniceto, Isabela A. V.; Catai, Aparecida Maria; Borghi‐Silva, Audrey

doi:10.1590/s1413-35552010005000003

Cited by 19 publications

(5 citation statements)

References 32 publications

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“…In addition, respiratory maneuvers that involve slow and deep breaths raise parasympathetic tone and consequent mental control, being important techniques to be taught to patients, especially those with chronic cardiorespiratory diseases (9,34). In this context, the new findings presented in this study on the response of COPD-HF patients during APM and RSA-M may lead to an effective improvement in pulmonary rehabilitation in a clinical setting.…”

Section: Discussionmentioning

confidence: 84%

Impact of chronic obstructive pulmonary disease on linear and nonlinear dynamics of heart rate variability in patients with heart failure

Goulart

Caruso

Arêas

et al. 2021

Braz J Med Biol Res

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The objective of this study was to investigate the impact of chronic obstructive pulmonary disease (COPD)-heart failure (HF) coexistence on linear and nonlinear dynamics of heart rate variability (HRV). Forty-one patients (14 with COPD-HF and 27 HF) were enrolled and underwent pulmonary function and echocardiography evaluation to confirm the clinical diagnosis. Heart rate (HR) and R-R intervals (iRR) were collected during active postural maneuver (APM) [supine (10 min) to orthostasis (10 min)], respiratory sinus arrhythmia maneuver (RSA-M) (4 min), and analysis of frequency domain, time domain, and nonlinear HRV. We found expected autonomic response during orthostatic changes with reduction of mean iRR, root mean square of successive differences between heart beats (RMSSD), RR tri index, and high-frequency [HF (nu)] and an increased mean HR, low-frequency [LF (nu)], and LF/HF (nu) compared with supine only in HF patients (Po0.05). Patients with COPD-HF coexistence did not respond to postural change. In addition, in the orthostatic position, higher HF nu and lower LF nu and LF/HF (nu) were observed in COPD-HF compared with HF patients. HF patients showed an opposite response during RSA-M, with increased sympathetic modulation (LF nu) and reduced parasympathetic modulation (HF nu) (Po0.05) compared with COPD-HF patients. COPD-HF directly influenced cardiac autonomic modulation during active postural change and controlled breathing, demonstrating an autonomic imbalance during sympathetic and parasympathetic maneuvers compared with isolated HF.

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Section: Discussionmentioning

confidence: 84%

Impact of chronic obstructive pulmonary disease on linear and nonlinear dynamics of heart rate variability in patients with heart failure

Goulart

Caruso

Arêas

et al. 2021

Braz J Med Biol Res

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“…However, some patients, especially patients who suffer from cardiac arrhythmias, have irregular heartbeats. [23][24][25][26][27] Therefore, the accuracy and effectiveness of self-gating signals in these subjects requires further investigation. In addition, the k-space sampling scheme of data acquisition adopted in this study is mod-ified from a 3D golden-ratio based radial sampling scheme.…”

Section: Discussionmentioning

confidence: 99%

Accuracy and effectiveness of self-gating signals in free-breathing three-dimensional cardiac cine magnetic resonance imaging

Wang

Zhu

et al. 2016

Chinese Phys. B

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Conventional multiple breath-hold two-dimensional (2D) balanced steady-state free precession (SSFP) presents many difficulties in cardiac cine magnetic resonance imaging (MRI). Recently, a self-gated free-breathing three-dimensional (3D) SSFP technique has been proposed as an alternative in many studies. However, the accuracy and effectiveness of selfgating signals have been barely studied before. Since self-gating signals are crucially important in image reconstruction, a systematic study of self-gating signals and comparison with external monitored signals are needed.Previously developed self-gated free-breathing 3D SSFP techniques are used on twenty-eight healthy volunteers. Both electrocardiographic (ECG) and respiratory bellow signals are also acquired during the scan as external signals. Self-gating signal and external signal are compared by trigger and gating window. Gating window is proposed to evaluate the accuracy and effectiveness of respiratory self-gating signal. Relative deviation of the trigger and root-mean-square-deviation of the cycle duration are calculated. A two-tailed paired t-test is used to identify the difference between self-gating and external signals. A Wilcoxon signed rank test is used to identify the difference between peak and valley self-gating triggers.The results demonstrate an excellent correlation (P = 0, R > 0.99) between self-gating and external triggers. Wilcoxon signed rank test shows that there is no significant difference between peak and valley self-gating triggers for both cardiac (H = 0, P > 0.10) and respiratory (H = 0, P > 0.44) motions. The difference between self-gating and externally monitored signals is not significant (two-tailed paired-sample t-test: H = 0, P > 0.90).The self-gating signals could demonstrate cardiac and respiratory motion accurately and effectively as ECG and respiratory bellow. The difference between the two methods is not significant and can be explained. Furthermore, few ECG trigger errors appear in some subjects while these errors are not found in self-gating signals.

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“…Porém, não há consenso na literatura atual se essa modalidade influencia ou não na predominância parassimpática, o que pode levar a baixa da variabilidade da frequência cardíaca causada por broncoconstrição induzida pelo exercício (15) . Conforme relatado anteriormente nesta revisão, a broncoconstrição induzida por exercício se apresenta como o principal motivo dos asmáticos não buscarem a prática de exercícios, estando presente entre 40 e 90% das crianças com asma (11) O estudo de McNarry (14) tem suas limitações, como a pequena quantidade de pacientes e o uso de medicamentos beta-agonistas em pacientes com asma grave que pudesse causar algum desequilíbrio simpático-vagal, auxiliando assim na excitação simpática cardíaca e na variabilidade da frequência cardíaca dos pacientes (16) .…”

Section: Exercício Intervalado De Alta Intensidadeunclassified

Intervenção Do Exercício No Público Infantojuvenil Asmático: Uma Revisão Da Literatura

Santos

Senn

Castagnoli

et al. 2023

Rev Cient Fac Educ e Meio Ambient

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A asma é uma patologia de origem inflamatória crônica com alta prevalência na infância. Devido à escassez de literatura, vimos a importância da disseminação de informações acerca da influência da reabilitação fisioterapêutica sobre a qualidade de vida de pacientes com asma no público infantojuvenil. Sendo assim, o presente estudo tem como objetivo analisar e reunir atuais evidências, a fim de apresentar as intervenções baseadas em exercícios com maior eficácia na literatura atual para o tratamento fisioterapêutico da asma em crianças e adolescentes. Foram incluídos seis estudos após exclusão por falta de adequações ao estudo proposto, cada um com suas próprias intervenções para tratamento de indivíduos em estágios diferentes da asma. Há uma ampla diversidade de técnicas a serem utilizadas no tratamento da asma encontrados neste estudo entre eles: exercício aeróbico, exercício resistido, treino de alta intensidade intervalado, estimulação elétrica neuromuscular, ventilação mecânica não invasiva, treinamento muscular inspiratório, sugerimos maiores pesquisas a fim de reforçar a utilização de cada técnica e a que grupo se destina.

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Controle autonômico da frequência cardíaca de pacientes com doenças cardiorrespiratórias crônicas e indivíduos saudáveis em repouso e durante a manobra de acentuação da arritmia sinusal respiratória

Cited by 19 publications

References 32 publications

Impact of chronic obstructive pulmonary disease on linear and nonlinear dynamics of heart rate variability in patients with heart failure

Impact of chronic obstructive pulmonary disease on linear and nonlinear dynamics of heart rate variability in patients with heart failure

Accuracy and effectiveness of self-gating signals in free-breathing three-dimensional cardiac cine magnetic resonance imaging

Intervenção Do Exercício No Público Infantojuvenil Asmático: Uma Revisão Da Literatura

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