Linear and Nonlinear Heart Rate Variability Analysis in Gonadal Dysgenesis (Swyer Syndrome): A Case Report
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Data
2021-05-12
Autores
Pereira, Valdelias Xavier
Carvalho, Tatiana Dias De
Marinovic, Marcos Antonio
Norberto, Alex Rey
Soares, José Maria
Valenti, Vitor Engrácia [UNESP]
Sorpreso, Isabel Cristina Esposito
Título da Revista
ISSN da Revista
Título de Volume
Editor
Sociedade Brasileira de Cardiologia
Resumo
Swyer syndrome is one of the disorders of sexual differentiation. Previous studies have demonstrated increased sympathetic activity with heart rate variability (HRV) analysis with decreasing estradiol levels. One patient presented a pure 46, XY gonadal dysgenesis with female phenotype. Cardiac autonomic modulation was assessed through HRV analysis while at rest. This research analyzed linear and nonlinear indexes. HRV analysis showed reduced parasympathetic and global modulation with an apparent increase in sympathetic tone and a loss of HR fractal dynamics toward correlated behavior, characterized by low entropy and high determinism of time series.
Descrição
Palavras-chave
Autonomic Nervous System, Estrogen, Replacement Therapy, Amenorrhea, Gonadectomy, Heart Rate, Cardiovascular Diseases/complications
Como citar
International Journal of Cardiovascular Sciences. Sociedade Brasileira de Cardiologia, p. -, 2021.