Impact of malnutrition on cardiac autonomic modulation in children,
Abstract Objective: To compare the autonomic behavior between malnourished children and a control group using analysis of heart rate variability (HRV). Method: Data were analyzed from 70 children who were divided into two groups: malnourished and eutrophic, according to the Z-score nutritional sta...
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doaj-753a4a15b7e54848b510a08c9ff5fc3a2020-11-24T23:31:58ZengElsevierJornal de Pediatria1678-478292663864410.1016/j.jped.2016.03.005S0021-75572016000700638Impact of malnutrition on cardiac autonomic modulation in children,Gláucia Siqueira Carvalho BarretoFranciele Marques VanderleiLuiz Carlos Marques VanderleiÁlvaro Jorge Madeiro LeiteAbstract Objective: To compare the autonomic behavior between malnourished children and a control group using analysis of heart rate variability (HRV). Method: Data were analyzed from 70 children who were divided into two groups: malnourished and eutrophic, according to the Z-score nutritional status for height and age. For analysis of HRV indices, heart rate was recorded beat to beat with the child in the supine position for 20 min. The analysis of these indices was performed using linear methods, analyzed in the time and frequency domains. Student's t-test for unpaired data and the Mann-Whitney test were used to compare variables between groups, with a significance level of 5%. Results: A reduction in systolic and diastolic blood pressure and an increase in heart rate were found in malnourished children compared to eutrophic children. The HRV indices suggested that malnourished children present reductions in both sympathetic and parasympathetic autonomic nervous system activity. The SDNN, rMSSD, NN50, pNN50, SD1, SD2, TINN, LF (ms2), and HF (ms2) indices were lower in malnourished children. Conclusion: Malnourished children present changes in cardiac autonomic modulation, characterized by reductions in both sympathetic and parasympathetic activity, as well as increased heart rate and decreased blood pressure.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0021-75572016000700638&lng=en&tlng=enSistema nervoso autônomoFrequência cardíacaDesnutriçãoVariabilidade da frequência cardíacaSaúde da criança |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Gláucia Siqueira Carvalho Barreto Franciele Marques Vanderlei Luiz Carlos Marques Vanderlei Álvaro Jorge Madeiro Leite |
spellingShingle |
Gláucia Siqueira Carvalho Barreto Franciele Marques Vanderlei Luiz Carlos Marques Vanderlei Álvaro Jorge Madeiro Leite Impact of malnutrition on cardiac autonomic modulation in children, Jornal de Pediatria Sistema nervoso autônomo Frequência cardíaca Desnutrição Variabilidade da frequência cardíaca Saúde da criança |
author_facet |
Gláucia Siqueira Carvalho Barreto Franciele Marques Vanderlei Luiz Carlos Marques Vanderlei Álvaro Jorge Madeiro Leite |
author_sort |
Gláucia Siqueira Carvalho Barreto |
title |
Impact of malnutrition on cardiac autonomic modulation in children, |
title_short |
Impact of malnutrition on cardiac autonomic modulation in children, |
title_full |
Impact of malnutrition on cardiac autonomic modulation in children, |
title_fullStr |
Impact of malnutrition on cardiac autonomic modulation in children, |
title_full_unstemmed |
Impact of malnutrition on cardiac autonomic modulation in children, |
title_sort |
impact of malnutrition on cardiac autonomic modulation in children, |
publisher |
Elsevier |
series |
Jornal de Pediatria |
issn |
1678-4782 |
description |
Abstract Objective: To compare the autonomic behavior between malnourished children and a control group using analysis of heart rate variability (HRV). Method: Data were analyzed from 70 children who were divided into two groups: malnourished and eutrophic, according to the Z-score nutritional status for height and age. For analysis of HRV indices, heart rate was recorded beat to beat with the child in the supine position for 20 min. The analysis of these indices was performed using linear methods, analyzed in the time and frequency domains. Student's t-test for unpaired data and the Mann-Whitney test were used to compare variables between groups, with a significance level of 5%. Results: A reduction in systolic and diastolic blood pressure and an increase in heart rate were found in malnourished children compared to eutrophic children. The HRV indices suggested that malnourished children present reductions in both sympathetic and parasympathetic autonomic nervous system activity. The SDNN, rMSSD, NN50, pNN50, SD1, SD2, TINN, LF (ms2), and HF (ms2) indices were lower in malnourished children. Conclusion: Malnourished children present changes in cardiac autonomic modulation, characterized by reductions in both sympathetic and parasympathetic activity, as well as increased heart rate and decreased blood pressure. |
topic |
Sistema nervoso autônomo Frequência cardíaca Desnutrição Variabilidade da frequência cardíaca Saúde da criança |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0021-75572016000700638&lng=en&tlng=en |
work_keys_str_mv |
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