Congenital heart disease is the most common congenital defect. During childhood, survival
is generally good but, in adulthood, late complications are not uncommon. Abnormal …

In the last thirty years, steady progress in the diagnostic tools and care of subjects affected
by congenital heart diseases (CHD) has resulted in a significant increase in their survival to …

Reduction of heart rate variability (HRV) parameters may be a risk factor and precede the
occurrence of arrhythmias or the development of heart failure and complications in people …

Background Patients with repaired tetralogy of Fallot often present residual hemodynamic
abnormalities leading to right ventricular (RV) burden. Semisupine exercise …

BACKGROUND: To compare the ventricular response to dobutamine stress between adult
patients with chronic pulmonary regurgitation (PR) after repair of tetralogy of Fallot (r-TOF) …

Heart rate variability (HRV) reflects the healthiness of autonomic nervous system, which is
associated with exercise capacity. We therefore investigated whether HRV could predict the …

Purpose: Current research indicates an imbalance in the autonomic nervous system (ANS)
pathway activities in patients with congenital heart disease (CHD). The heart rate variability …

METHODS Thirty-six patients who had undergone TOF surgery were randomly selected for
this cross-sectional study. The parents of six patients did not give consent for the analysis …

Objective: It has been documented that impaired heart rate variability (HRV) is related to life
threatening arrhythmias in children with surgically repaired congenital heart disease. We …

Background: Surgical repair of congenital heart diseases (CHD) affects heart rate variability
(HRV) in different ways. It leads to varying degrees of cardiac autonomic derangement …