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Cardiac autonomic modulation assessed by heart rate variability in children with asthma.
Franco, Ozeia S; Júnior, Abelardo O S; Signori, Luis U; Prietsch, Silvio O M; Zhang, Linjie.
Afiliação
  • Franco OS; Pediatric Pulmonology Division, Postgraduate Program in Health Sciences and Postgraduate Program in Public Health, Faculty of Medicine, Federal University of Rio Grande, Rio Grande, Rio Grande do Sul, Brazil.
  • Júnior AOS; Physical Therapy Division, Anhanguera College of Pelotas, Pelotas, Rio Grande do Sul, Brazil.
  • Signori LU; Department of Physical Therapy and Rehabilitation, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul, Brazil.
  • Prietsch SOM; Pediatric Pulmonology Division, Postgraduate Program in Health Sciences and Postgraduate Program in Public Health, Faculty of Medicine, Federal University of Rio Grande, Rio Grande, Rio Grande do Sul, Brazil.
  • Zhang L; Pediatric Pulmonology Division, Postgraduate Program in Health Sciences and Postgraduate Program in Public Health, Faculty of Medicine, Federal University of Rio Grande, Rio Grande, Rio Grande do Sul, Brazil.
Pediatr Pulmonol ; 55(6): 1334-1339, 2020 06.
Article em En | MEDLINE | ID: mdl-32119199
OBJECTIVE: To assess cardiac autonomic modulation, measured by short-term frequency domain analysis of heart rate variability (HRV), in children with asthma. METHODS: We conducted an observational study at a tertiary care teaching hospital. The sample consisted of 119 children aged 7 to 15 years with asthma and 56 age-matched healthy controls. Frequency domain HRV measures included low-frequency (LF; 0.04-0.15 Hz), high-frequency (HF; 0.15-0.4 Hz), and LF/HF ratio. The LF and HF components were expressed in both absolute values of power (ms2 ) and in normalized units (nu). RESULTS: Compared with healthy controls, asthmatic children had significantly higher value of HF (nu) (mean ± standard deviation: 45.9 ± 14.6 vs 40.7 ± 13.6; P = .02), and lower values of LF (nu) (54.1 ± 14.6 vs 59.3 ± 13.6; P = .02) and LF/HF ratio (median, interquartile range: 1.12, 0.82-1.88 vs 1.59, 1.02-2.08; P = .03). We did not find significant differences between children with persistent and intermittent asthma, and between children with well-controlled and partially-controlled or uncontrolled asthma, in terms of HRV measures. CONCLUSIONS: Children with stable chronic asthma may have a cardiac autonomic imbalance with a possible enhanced parasympathetic modulation, as assessed by short-term frequency domain analysis of HRV. Neither asthma severity nor asthma control was significantly associated with HRV measures, but the study did not have enough power to draw a firm conclusion on this point.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Asma / Frequência Cardíaca Tipo de estudo: Observational_studies Limite: Adolescent / Child / Female / Humans / Male Idioma: En Revista: Pediatr Pulmonol Assunto da revista: PEDIATRIA Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Asma / Frequência Cardíaca Tipo de estudo: Observational_studies Limite: Adolescent / Child / Female / Humans / Male Idioma: En Revista: Pediatr Pulmonol Assunto da revista: PEDIATRIA Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos