Heart Rate Variability (ANS Function) Clinical Trial
Official title:
Effect of Salbutamol on Autonomic Nervous System Dysfunction of Children With Sickle Cell Disease
Sickle cell disease (SCD) children and adults with asthma have an increased rate of vaso-occlusive crisis, acute chest syndrome episodes, and premature mortality when compared to those without asthma. We hypothesised that either asthma diagnosis and/or bronchodilator treatment may aggravate SCD via their modulating effect on autonomic nervous system.
Heart rate variability during pulmonary function tests (spirometry, static volumes, DLCO/DLNO, exhaled NO at multiple flow rates) including salbutamol administration will be evaluated in patients with SCD (n=60) receiving asthma treatment or not, as compared to asthmatic children without SCD (n=30) matched for ethnicity ;