Abstract
We electrophysiologically evaluated the autonomic function (AF) in a consecutive series of patients with beta-thalassemia and in normal individuals. Six quantitative autonomic function tests (AFTs) were used: tilt test, hand grip test and sympathetic skin response for sympathetic function; R–R interval, inspiration–expiration difference and 30/15 ratio for parasympathetic function. The prevalence of impaired AF was higher in beta-thalassemia patients (13%, n = 5) than in control subjects (0%, n = 0; p = 0.026). Subclinical autonomic dysfunction appeared to be more prevalent in beta-thalassemia patients compared to controls in our series. Further independent validation of this finding is required in larger cohorts of beta-thalassemia patients.
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Acknowledgments
Dr Elefterios Stamboulis and Dr Georgios Tsivgoulis had full access to all of the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis.
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Stamboulis, E., Vlachou, N., Voumvourakis, K. et al. Subclinical autonomic dysfunction in patients with beta-thalassemia. Clin Auton Res 22, 147–150 (2012). https://doi.org/10.1007/s10286-011-0154-2
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DOI: https://doi.org/10.1007/s10286-011-0154-2