| Revista: | Anais da Academia Brasileira de Ciencias |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000436199 |
| ISSN: | 0001-3765 |
| Autores: | Lucas, Cristina M.S1 Zaniqueli, Divanei1 Alvim, Rafael O2 Miguel, Gustavo P.S3 Mill, José Geraldo1 |
| Instituciones: | 1Universidade Federal do Espirito Santo, Clinica de Investigacao Cardiovascular, Vitoria, Espirito Santo. Brasil 2Universidade Federal do Amazonas, Instituto de Ciencias Biologicas, Manaus, Amazonas. Brasil 3Universidade Federal do Espirito Santo, Hospital Universitario, Vitoria, Espirito Santo. Brasil |
| Año: | 2020 |
| Volumen: | 92 |
| Número: | 1 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico, descriptivo |
| Resumen en inglés | Studies have shown improvement of the cardiac autonomic balance in post-bariatric patients. Most of these studies included patients using drugs interfering in the autonomic nervous system. This study assessed the time course of changes in the sympathovagal balance after bariatric surgery (Roux-en-Y gastric bypass) in 26 women free from drugs. A 10-min electrocardiographic recording was obtained at baseline and at 3 and 6 months after surgery. Temporal and spectral domains of heart rate variability were analysed. The time domain components of cardiac vagal modulation increased progressively after surgery. In the frequency domain, high frequency power increased from 24.9 at baseline (18.0 to 46.3) to 44.5 at 3 months (23.4 to 65.6), and 54.1 at 6 months after surgery (37.6 to 64.0) (median and IQR in normalized units). Low frequency spectral power decreased from 56.2 at baseline (39.6 to 74.4) to 36.8 at 6 months after surgery (24.9 to 53.9) (P= 0.036). Low frequency/high frequency ratio decreased from 2.3 at baseline (1.0 to 4.2) to 0.8 at 6 months after surgery (0.4 to 1.3) (P= 0.038). Progressive shift towards predominance of vagal tonus was detected in the follow-up. Most of the patients recovered low frequency/high frequency at 6 months after surgery |
| Disciplinas: | Medicina |
| Palabras clave: | Sistema cardiovascular, Neurología, Cirugía bariátrica, Mujeres, Control autonómico, Variabilidad de la frecuencia cardiaca |
| Keyword: | Cardiovascular system, Neurology, Women, Bariatric surgery, Autonomic control, Heart rate variability |
| Texto completo: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
