Reduced Heart Rate Variability in Patients Affected with Rett Syndrome. A Possible Explanation for Sudden Death
- 1 June 1999
- journal article
- research article
- Published by Georg Thieme Verlag KG in Neuropediatrics
- Vol. 30 (03) , 146-148
- https://doi.org/10.1055/s-2007-973480
Abstract
Incidence of sudden death in Rett syndrome is greater than that of the general population and cardiac electrical instability is a prime suspect cause. Our study shows that girls with Rett syndrome had significantly lower heart rate variability (marker of autonomic disarray) and longer corrected QT intervals compared with an age-matched group of healthy girls. These abnormalities increased with advancing stages of the syndrome. These findings suggest a possible role of cardiac dysfunction in the sudden death associated with Rett syndrome.Keywords
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