Avaliação da variabilidade da frequência cardíaca em crianças com cardiopatias congênitas.

Abstract

The early diagnosis of congenital malformation is important because of its prognostic implication arising from the rapid deterioration of his clinical and high mortality within the first month of life for heart failure or severe hypoxemia. The objsctive is to characterize of identify the presence of cardiorespiratory disorders disorders and analyze heart rate variability before surgery in children with congenital heart disease. Methods: The data collected allowed the elaboration of a study, we evaluated 17 patients with congenital heart diseases and acyanogenic from the Clinic of Philanthropy Sirio Libanes Hospital and the Sabara Hospital, and 11 healthy control children in the study were performed the following procedures: initial assessment, collection rate variability heart with the help of frequency counter S810i. Results: The study included 17 children with congenital heart diseases and acyanogenic and 11 children in the control group. The significant difference in the time domain occurred in the variables mean RR, RMSSD, SDNN intra-group changes in position from lying to sitting and inter-group differences in variables were presented mean RR, HR and SDNN. In relation to the frequency domain, showed a significant difference in inter-group variables in the HF and LF / HF ratio and intra-group variables in the LF and the LF / HF ratio Conclusion: It can be concluded that children with congenital heart diseases and acyanogenic show no changes in the autonomic adjustment correct position as compared with healthy children.